Support units of measure in JsonParse (#170)

Bumps [actions/attest-build-provenance](https://github.com/actions/attest-build-provenance) from 1.0.0 to 1.3.2.
- [Release notes](https://github.com/actions/attest-build-provenance/releases)
- [Changelog](https://github.com/actions/attest-build-provenance/blob/main/RELEASE.md)
- [Commits](897ed5eab6...bdd51370e0)

---
updated-dependencies:
- dependency-name: actions/attest-build-provenance
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.config/dotnet-tools.json

@@ -3,7 +3,7 @@
   "isRoot": true,
   "tools": {
     "fantomas": {
-      "version": "6.3.4",
+      "version": "6.3.9",
       "commands": [
         "fantomas"
       ]

.github/workflows/assert-contents.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+echo "Unzipping version from NuGet"
+ls from-nuget.nupkg
+mkdir from-nuget && cp from-nuget.nupkg from-nuget/zip.zip && cd from-nuget && unzip zip.zip && rm zip.zip && cd - || exit 1
+
+echo "Unzipping version from local build"
+ls packed/
+mkdir from-local && cp packed/*.nupkg from-local/zip.zip && cd from-local && unzip zip.zip && rm zip.zip && cd - || exit 1
+
+cd from-local && find . -type f -exec sha256sum {} \; | sort > ../from-local.txt && cd .. || exit 1
+cd from-nuget && find . -type f -and -not -name '.signature.p7s' -exec sha256sum {} \; | sort > ../from-nuget.txt && cd .. || exit 1
+
+diff from-local.txt from-nuget.txt

.github/workflows/dotnet.yaml

@@ -1,3 +1,4 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/SchemaStore/schemastore/master/src/schemas/json/github-workflow.json
 name: .NET
 
 on:
@@ -86,6 +87,27 @@ jobs:
       - name: Run Fantomas
         run: nix run .#fantomas -- --check .
 
+  check-accurate-generations:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # so that NerdBank.GitVersioning has access to history
+      - name: Install Nix
+        uses: cachix/install-nix-action@V27
+        with:
+          extra_nix_config: |
+            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+      - name: Whitespace change
+        run: "echo ' ' >> ConsumePlugin/List.fs"
+      - name: Generate code
+        run: nix develop --command dotnet build
+      - name: Run Fantomas
+        run: nix run .#fantomas -- .
+      - name: Verify there is no diff
+        run: git diff --name-only --no-color --exit-code
+
   check-nix-format:
     runs-on: ubuntu-latest
     steps:
@@ -174,17 +196,78 @@ jobs:
         # Verify that there is exactly one nupkg in the artifact that would be NuGet published
         run: if [[ $(find packed-attribute -maxdepth 1 -name 'WoofWare.Myriad.Plugins.Attributes.*.nupkg' -printf c | wc -c) -ne "1" ]]; then exit 1; fi
 
+  github-release-plugin-dry-run:
+    needs: [nuget-pack]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Download NuGet artifact (plugin)
+        uses: actions/download-artifact@v4
+        with:
+          name: nuget-package-plugin
+      - name: Download NuGet artifact (attribute)
+        uses: actions/download-artifact@v4
+        with:
+          name: nuget-package-attribute
+      - name: Tag and release plugin
+        env:
+          DRY_RUN: 1
+          GITHUB_TOKEN: mock-token
+        run: sh .github/workflows/tag.sh
+
   all-required-checks-complete:
-    needs: [check-dotnet-format, check-nix-format, build, build-nix, linkcheck, flake-check, analyzers, nuget-pack, expected-pack]
+    needs: [check-dotnet-format, check-nix-format, check-accurate-generations, build, build-nix, linkcheck, flake-check, analyzers, nuget-pack, expected-pack, github-release-plugin-dry-run]
     runs-on: ubuntu-latest
     steps:
       - run: echo "All required checks complete."
 
-  nuget-publish:
+  attestation-attribute:
+    runs-on: ubuntu-latest
+    needs: [all-required-checks-complete]
+    if: ${{ !github.event.repository.fork && github.ref == 'refs/heads/main' }}
+    permissions:
+      id-token: write
+      attestations: write
+      contents: read
+    steps:
+      - name: Download NuGet artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: nuget-package-attribute
+          path: packed
+      - name: Attest Build Provenance
+        uses: actions/attest-build-provenance@bdd51370e0416ac948727f861e03c2f05d32d78e # v1.3.2
+        with:
+          subject-path: "packed/*.nupkg"
+
+  attestation-plugin:
+    runs-on: ubuntu-latest
+    needs: [all-required-checks-complete]
+    if: ${{ !github.event.repository.fork && github.ref == 'refs/heads/main' }}
+    permissions:
+      id-token: write
+      attestations: write
+      contents: read
+    steps:
+      - name: Download NuGet artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: nuget-package-plugin
+          path: packed
+      - name: Attest Build Provenance
+        uses: actions/attest-build-provenance@bdd51370e0416ac948727f861e03c2f05d32d78e # v1.3.2
+        with:
+          subject-path: "packed/*.nupkg"
+
+  nuget-publish-attribute:
     runs-on: ubuntu-latest
     if: ${{ !github.event.repository.fork && github.ref == 'refs/heads/main' }}
     needs: [all-required-checks-complete]
     environment: main-deploy
+    permissions:
+      id-token: write
+      attestations: write
+      contents: read
     steps:
       - uses: actions/checkout@v4
       - name: Install Nix
@@ -192,20 +275,73 @@ jobs:
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-      - name: Download NuGet artifact (plugin)
+      - name: Download NuGet artifact
-        uses: actions/download-artifact@v4
-        with:
-          name: nuget-package-plugin
-          path: packed-plugin
-      - name: Publish to NuGet (plugin)
-        run: nix develop --command dotnet nuget push "packed-plugin/WoofWare.Myriad.Plugins.*.nupkg" --api-key ${{ secrets.NUGET_API_KEY }} --source https://api.nuget.org/v3/index.json --skip-duplicate
-      - name: Download NuGet artifact (attribute)
         uses: actions/download-artifact@v4
         with:
           name: nuget-package-attribute
-          path: packed-attribute
+          path: packed
-      - name: Publish to NuGet (attribute)
+      - name: Publish to NuGet
-        run: nix develop --command dotnet nuget push "packed-attribute/WoofWare.Myriad.Plugins.Attributes.*.nupkg" --api-key ${{ secrets.NUGET_API_KEY }} --source https://api.nuget.org/v3/index.json --skip-duplicate
+        id: publish-success
+        env:
+          NUGET_API_KEY: ${{ secrets.NUGET_API_KEY }}
+        run: 'nix develop --command bash ./.github/workflows/nuget-push.sh "packed/WoofWare.Myriad.Plugins.Attributes.*.nupkg"'
+      - name: Wait for availability
+        if: steps.publish-success.outputs.result == 'published'
+        env:
+          PACKAGE_VERSION: ${{ steps.publish-success.outputs.version }}
+        run: 'echo "$PACKAGE_VERSION" && while ! curl -L --fail -o from-nuget.nupkg "https://www.nuget.org/api/v2/package/WoofWare.Myriad.Plugins.Attributes/$PACKAGE_VERSION" ; do sleep 10; done'
+      # Astonishingly, NuGet.org considers it to be "more secure" to tamper with my package after upload (https://devblogs.microsoft.com/nuget/introducing-repository-signatures/).
+      # So we have to *re-attest* it after it's uploaded. Mind-blowing.
+      - name: Assert package contents
+        if: steps.publish-success.outputs.result == 'published'
+        run: 'bash ./.github/workflows/assert-contents.sh'
+      - name: Attest Build Provenance
+        if: steps.publish-success.outputs.result == 'published'
+        uses: actions/attest-build-provenance@bdd51370e0416ac948727f861e03c2f05d32d78e # v1.3.2
+        with:
+          subject-path: "from-nuget.nupkg"
+
+  nuget-publish-plugin:
+    runs-on: ubuntu-latest
+    if: ${{ !github.event.repository.fork && github.ref == 'refs/heads/main' }}
+    needs: [all-required-checks-complete]
+    environment: main-deploy
+    permissions:
+      id-token: write
+      attestations: write
+      contents: read
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install Nix
+        uses: cachix/install-nix-action@V27
+        with:
+          extra_nix_config: |
+            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+      - name: Download NuGet artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: nuget-package-plugin
+          path: packed
+      - name: Publish to NuGet
+        id: publish-success
+        env:
+          NUGET_API_KEY: ${{ secrets.NUGET_API_KEY }}
+        run: 'nix develop --command bash ./.github/workflows/nuget-push.sh "packed/WoofWare.Myriad.Plugins.*.nupkg"'
+      - name: Wait for availability
+        if: steps.publish-success.outputs.result == 'published'
+        env:
+          PACKAGE_VERSION: ${{ steps.publish-success.outputs.version }}
+        run: 'echo "$PACKAGE_VERSION" && while ! curl -L --fail -o from-nuget.nupkg "https://www.nuget.org/api/v2/package/WoofWare.Myriad.Plugins/$PACKAGE_VERSION" ; do sleep 10; done'
+      # Astonishingly, NuGet.org considers it to be "more secure" to tamper with my package after upload (https://devblogs.microsoft.com/nuget/introducing-repository-signatures/).
+      # So we have to *re-attest* it after it's uploaded. Mind-blowing.
+      - name: Assert package contents
+        if: steps.publish-success.outputs.result == 'published'
+        run: 'bash ./.github/workflows/assert-contents.sh'
+      - name: Attest Build Provenance
+        if: steps.publish-success.outputs.result == 'published'
+        uses: actions/attest-build-provenance@bdd51370e0416ac948727f861e03c2f05d32d78e # v1.3.2
+        with:
+          subject-path: "from-nuget.nupkg"
 
   github-release-plugin:
     runs-on: ubuntu-latest

.github/workflows/nuget-push.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+SOURCE_NUPKG=$(find . -type f -name '*.nupkg')
+
+PACKAGE_VERSION=$(basename "$SOURCE_NUPKG" | rev | cut -d '.' -f 2-4 | rev)
+
+echo "version=$PACKAGE_VERSION" >> "$GITHUB_OUTPUT"
+
+tmp=$(mktemp)
+
+if ! dotnet nuget push "$SOURCE_NUPKG" --api-key "$NUGET_API_KEY" --source https://api.nuget.org/v3/index.json > "$tmp" ; then
+    cat "$tmp"
+    if grep 'already exists and cannot be modified' "$tmp" ; then
+        echo "result=skipped" >> "$GITHUB_OUTPUT"
+        exit 0
+    else
+        echo "Unexpected failure to upload"
+        exit 1
+    fi
+fi
+
+cat "$tmp"
+
+echo "result=published" >> "$GITHUB_OUTPUT"

.github/workflows/tag.sh

@@ -1,6 +1,13 @@
-#!/bin/sh
+#!/bin/bash
 
-find . -maxdepth 1 -type f -name '*.nupkg' -exec sh -c 'tag=$(basename "$1" .nupkg); git tag "$tag"; git push origin "$tag"' shell {} \;
+echo "Dry-run? $DRY_RUN!"
+
+find . -maxdepth 1 -type f ! -name "$(printf "*\n*")" -name '*.nupkg' | while IFS= read -r file
+do
+    tag=$(basename "$file" .nupkg)
+    git tag "$tag"
+    ${DRY_RUN:+echo} git push origin "$tag"
+done
 
 export TAG
 TAG=$(find . -maxdepth 1 -type f -name 'WoofWare.Myriad.Plugins.*.nupkg' -exec sh -c 'basename "$1" .nupkg' shell {} \; | grep -v Attributes)
@@ -14,4 +21,100 @@ case "$TAG" in
 esac
 
 # target_commitish empty indicates the repo default branch
-curl -L -X POST -H "Accept: application/vnd.github+json" -H "Authorization: Bearer $GITHUB_TOKEN" -H "X-GitHub-Api-Version: 2022-11-28" https://api.github.com/repos/Smaug123/WoofWare.Myriad/releases -d '{"tag_name":"'"$TAG"'","target_commitish":"","name":"'"$TAG"'","draft":false,"prerelease":false,"generate_release_notes":false}'
+curl_body='{"tag_name":"'"$TAG"'","target_commitish":"","name":"'"$TAG"'","draft":false,"prerelease":false,"generate_release_notes":false}'
+
+echo "cURL body: $curl_body"
+
+failed_output=$(cat <<'EOF'
+{
+  "message": "Validation Failed",
+  "errors": [
+    {
+      "resource": "Release",
+      "code": "already_exists",
+      "field": "tag_name"
+    }
+  ],
+  "documentation_url": "https://docs.github.com/rest/releases/releases#create-a-release"
+}
+EOF
+)
+
+success_output=$(cat <<'EOF'
+{
+  "url": "https://api.github.com/repos/Smaug123/WoofWare.Myriad/releases/158152116",
+  "assets_url": "https://api.github.com/repos/Smaug123/WoofWare.Myriad/releases/158152116/assets",
+  "upload_url": "https://uploads.github.com/repos/Smaug123/WoofWare.Myriad/releases/158152116/assets{?name,label}",
+  "html_url": "https://github.com/Smaug123/WoofWare.Myriad/releases/tag/WoofWare.Myriad.Plugins.2.1.30",
+  "id": 158152116,
+  "author": {
+    "login": "github-actions[bot]",
+    "id": 41898282,
+    "node_id": "MDM6Qm90NDE4OTgyODI=",
+    "avatar_url": "https://avatars.githubusercontent.com/in/15368?v=4",
+    "gravatar_id": "",
+    "url": "https://api.github.com/users/github-actions%5Bbot%5D",
+    "html_url": "https://github.com/apps/github-actions",
+    "followers_url": "https://api.github.com/users/github-actions%5Bbot%5D/followers",
+    "following_url": "https://api.github.com/users/github-actions%5Bbot%5D/following{/other_user}",
+    "gists_url": "https://api.github.com/users/github-actions%5Bbot%5D/gists{/gist_id}",
+    "starred_url": "https://api.github.com/users/github-actions%5Bbot%5D/starred{/owner}{/repo}",
+    "subscriptions_url": "https://api.github.com/users/github-actions%5Bbot%5D/subscriptions",
+    "organizations_url": "https://api.github.com/users/github-actions%5Bbot%5D/orgs",
+    "repos_url": "https://api.github.com/users/github-actions%5Bbot%5D/repos",
+    "events_url": "https://api.github.com/users/github-actions%5Bbot%5D/events{/privacy}",
+    "received_events_url": "https://api.github.com/users/github-actions%5Bbot%5D/received_events",
+    "type": "Bot",
+    "site_admin": false
+  },
+  "node_id": "RE_kwDOJfksgc4JbTW0",
+  "tag_name": "WoofWare.Myriad.Plugins.2.1.30",
+  "target_commitish": "main",
+  "name": "WoofWare.Myriad.Plugins.2.1.30",
+  "draft": false,
+  "prerelease": false,
+  "created_at": "2024-05-30T11:00:55Z",
+  "published_at": "2024-05-30T11:03:02Z",
+  "assets": [
+
+  ],
+  "tarball_url": "https://api.github.com/repos/Smaug123/WoofWare.Myriad/tarball/WoofWare.Myriad.Plugins.2.1.30",
+  "zipball_url": "https://api.github.com/repos/Smaug123/WoofWare.Myriad/zipball/WoofWare.Myriad.Plugins.2.1.30",
+  "body": null
+}
+EOF
+)
+
+HANDLE_OUTPUT=''
+handle_error() {
+    ERROR_OUTPUT="$1"
+    exit_message=$(echo "$ERROR_OUTPUT" | jq -r --exit-status 'if .errors | length == 1 then .errors[0].code else null end')
+    if [ "$exit_message" = "already_exists" ] ; then
+        HANDLE_OUTPUT="Did not create GitHub release because it already exists at this version."
+    else
+        echo "Unexpected error output from curl: $(cat curl_output.json)"
+        echo "JQ output: $(exit_message)"
+        exit 2
+    fi
+}
+
+run_tests() {
+    handle_error "$failed_output"
+    if [ "$HANDLE_OUTPUT" != "Did not create GitHub release because it already exists at this version." ]; then
+        echo "Bad output from handler: $HANDLE_OUTPUT"
+        exit 3
+    fi
+    HANDLE_OUTPUT=''
+    echo "Tests passed."
+}
+
+run_tests
+
+if [ "$DRY_RUN" != 1 ] ; then
+    if curl --fail-with-body -L -X POST -H "Accept: application/vnd.github+json" -H "Authorization: Bearer $GITHUB_TOKEN" -H "X-GitHub-Api-Version: 2022-11-28" https://api.github.com/repos/Smaug123/WoofWare.Myriad/releases -d "$curl_body" > curl_output.json; then
+        echo "Curl succeeded."
+    else
+        handle_error "$(cat curl_output.json)"
+        echo "$HANDLE_OUTPUT"
+    fi
+fi

.gitignore

@@ -1,12 +1,12 @@
-bin/
+bin/
-obj/
+obj/
-/packages/
+/packages/
-riderModule.iml
+riderModule.iml
-/_ReSharper.Caches/
+/_ReSharper.Caches/
-.idea/
+.idea/
-*.sln.DotSettings.user
+*.sln.DotSettings.user
-.DS_Store
+.DS_Store
-result
+result
-.analyzerpackages/
+.analyzerpackages/
-analysis.sarif
+analysis.sarif
-.direnv/
+.direnv/

CHANGELOG.md

@@ -1,5 +1,19 @@
 Notable changes are recorded here.
 
+# WoofWare.Myriad.Plugins 2.1.45, WoofWare.Myriad.Plugins.Attributes 3.1.7
+
+The NuGet packages are now attested to through [GitHub Attestations](https://github.blog/2024-05-02-introducing-artifact-attestations-now-in-public-beta/).
+You can run `gh attestation verify ~/.nuget/packages/woofware.myriad.plugins/2.1.45/woofware.myriad.plugins.2.1.45.nupkg -o Smaug123`, for example, to verify with GitHub that the GitHub Actions pipeline on this repository produced a nupkg file with the same hash as the one you were served from NuGet.
+
+# WoofWare.Myriad.Plugins 2.1.33
+
+`JsonParse` can now deserialize the discriminated unions which `JsonSerialize` wrote out.
+
+# WoofWare.Myriad.Plugins 2.1.32, WoofWare.Myriad.Plugins.Attributes 3.1.4
+
+`JsonSerialize` can now serialize many discriminated unions.
+(This operation is inherently opinionated, because JSON does not model discriminated unions.)
+
 # WoofWare.Myriad.Plugins 2.1.20, WoofWare.Myriad.Plugins.Attributes 3.0.1
 
 We now bundle copies of the RestEase attributes in `WoofWare.Myriad.Plugins.Attributes`, in case you don't want to take a dependency on RestEase.

ConsumePlugin/GeneratedCatamorphism.fs

@@ -92,13 +92,13 @@ module TreeCata =
                 let arg0_0 = treeStack.[treeStack.Count - 1]
                 treeStack.RemoveAt (treeStack.Count - 1)
                 cata.TreeBuilder.Parent arg0_0 |> treeBuilderStack.Add
-            | Instruction.Tree_Pair (arg2_0) ->
+            | Instruction.Tree_Pair arg2_0 ->
                 let arg0_0 = treeStack.[treeStack.Count - 1]
                 treeStack.RemoveAt (treeStack.Count - 1)
                 let arg1_0 = treeStack.[treeStack.Count - 1]
                 treeStack.RemoveAt (treeStack.Count - 1)
                 cata.Tree.Pair arg0_0 arg1_0 arg2_0 |> treeStack.Add
-            | Instruction.Tree_Sequential (arg0_0) ->
+            | Instruction.Tree_Sequential arg0_0 ->
                 let arg0_0_len = arg0_0
 
                 let arg0_0 =

ConsumePlugin/GeneratedFileSystem.fs

@@ -129,7 +129,7 @@ module GiftCata =
                 | Gift.WithACard (arg0_0, message) ->
                     instructions.Add (Instruction.Gift_WithACard (message))
                     instructions.Add (Instruction.Process__Gift arg0_0)
-            | Instruction.Gift_Wrapped (arg1_0) ->
+            | Instruction.Gift_Wrapped arg1_0 ->
                 let arg0_0 = giftStack.[giftStack.Count - 1]
                 giftStack.RemoveAt (giftStack.Count - 1)
                 cata.Gift.Wrapped arg0_0 arg1_0 |> giftStack.Add
@@ -137,7 +137,7 @@ module GiftCata =
                 let arg0_0 = giftStack.[giftStack.Count - 1]
                 giftStack.RemoveAt (giftStack.Count - 1)
                 cata.Gift.Boxed arg0_0 |> giftStack.Add
-            | Instruction.Gift_WithACard (message) ->
+            | Instruction.Gift_WithACard message ->
                 let arg0_0 = giftStack.[giftStack.Count - 1]
                 giftStack.RemoveAt (giftStack.Count - 1)
                 cata.Gift.WithACard arg0_0 message |> giftStack.Add

ConsumePlugin/GeneratedJson.fs

@@ -4,16 +4,42 @@
 //------------------------------------------------------------------------------
 
 
+namespace ConsumePlugin
+
+open System.Text.Json.Serialization
+
+/// Module containing JSON serializing methods for the InternalTypeNotExtensionSerial type
+[<RequireQualifiedAccess ; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
+module internal InternalTypeNotExtensionSerial =
+    /// Serialize to a JSON node
+    let toJsonNode (input : InternalTypeNotExtensionSerial) : System.Text.Json.Nodes.JsonNode =
+        let node = System.Text.Json.Nodes.JsonObject ()
+        do node.Add ((Literals.something), System.Text.Json.Nodes.JsonValue.Create<string> input.InternalThing2)
+        node :> _
+namespace ConsumePlugin
+
+open System.Text.Json.Serialization
+
+/// Module containing JSON serializing extension members for the InternalTypeExtension type
+[<AutoOpen>]
+module internal InternalTypeExtensionJsonSerializeExtension =
+    /// Extension methods for JSON parsing
+    type InternalTypeExtension with
+
+        /// Serialize to a JSON node
+        static member toJsonNode (input : InternalTypeExtension) : System.Text.Json.Nodes.JsonNode =
+            let node = System.Text.Json.Nodes.JsonObject ()
+            do node.Add ((Literals.something), System.Text.Json.Nodes.JsonValue.Create<string> input.ExternalThing)
+            node :> _
 
 namespace ConsumePlugin
 
 /// Module containing JSON parsing methods for the InnerType type
-[<RequireQualifiedAccess>]
+[<RequireQualifiedAccess ; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
 module InnerType =
     /// Parse from a JSON node.
     let jsonParse (node : System.Text.Json.Nodes.JsonNode) : InnerType =
-        let Thing =
+        let arg_0 =
             (match node.[(Literals.something)] with
              | null ->
                  raise (
@@ -26,17 +52,16 @@ module InnerType =
                 .GetValue<string> ()
 
         {
-            Thing = Thing
+            Thing = arg_0
         }
 namespace ConsumePlugin
 
 /// Module containing JSON parsing methods for the JsonRecordType type
-[<RequireQualifiedAccess>]
+[<RequireQualifiedAccess ; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
 module JsonRecordType =
     /// Parse from a JSON node.
     let jsonParse (node : System.Text.Json.Nodes.JsonNode) : JsonRecordType =
-        let F =
+        let arg_5 =
             (match node.["f"] with
              | null ->
                  raise (
@@ -49,7 +74,7 @@ module JsonRecordType =
             |> Seq.map (fun elt -> elt.AsValue().GetValue<int> ())
             |> Array.ofSeq
 
-        let E =
+        let arg_4 =
             (match node.["e"] with
              | null ->
                  raise (
@@ -62,7 +87,7 @@ module JsonRecordType =
             |> Seq.map (fun elt -> elt.AsValue().GetValue<string> ())
             |> Array.ofSeq
 
-        let D =
+        let arg_3 =
             InnerType.jsonParse (
                 match node.["d"] with
                 | null ->
@@ -74,7 +99,7 @@ module JsonRecordType =
                 | v -> v
             )
 
-        let C =
+        let arg_2 =
             (match node.["hi"] with
              | null ->
                  raise (
@@ -87,7 +112,7 @@ module JsonRecordType =
             |> Seq.map (fun elt -> elt.AsValue().GetValue<int> ())
             |> List.ofSeq
 
-        let B =
+        let arg_1 =
             (match node.["another-thing"] with
              | null ->
                  raise (
@@ -99,7 +124,7 @@ module JsonRecordType =
                 .AsValue()
                 .GetValue<string> ()
 
-        let A =
+        let arg_0 =
             (match node.["a"] with
              | null ->
                  raise (
@@ -112,15 +137,62 @@ module JsonRecordType =
                 .GetValue<int> ()
 
         {
-            A = A
+            A = arg_0
-            B = B
+            B = arg_1
-            C = C
+            C = arg_2
-            D = D
+            D = arg_3
-            E = E
+            E = arg_4
-            F = F
+            F = arg_5
         }
 namespace ConsumePlugin
 
+/// Module containing JSON parsing methods for the InternalTypeNotExtension type
+[<RequireQualifiedAccess ; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
+module internal InternalTypeNotExtension =
+    /// Parse from a JSON node.
+    let jsonParse (node : System.Text.Json.Nodes.JsonNode) : InternalTypeNotExtension =
+        let arg_0 =
+            (match node.[(Literals.something)] with
+             | null ->
+                 raise (
+                     System.Collections.Generic.KeyNotFoundException (
+                         sprintf "Required key '%s' not found on JSON object" ((Literals.something))
+                     )
+                 )
+             | v -> v)
+                .AsValue()
+                .GetValue<string> ()
+
+        {
+            InternalThing = arg_0
+        }
+namespace ConsumePlugin
+
+/// Module containing JSON parsing extension members for the InternalTypeExtension type
+[<AutoOpen>]
+module internal InternalTypeExtensionJsonParseExtension =
+    /// Extension methods for JSON parsing
+    type InternalTypeExtension with
+
+        /// Parse from a JSON node.
+        static member jsonParse (node : System.Text.Json.Nodes.JsonNode) : InternalTypeExtension =
+            let arg_0 =
+                (match node.[(Literals.something)] with
+                 | null ->
+                     raise (
+                         System.Collections.Generic.KeyNotFoundException (
+                             sprintf "Required key '%s' not found on JSON object" ((Literals.something))
+                         )
+                     )
+                 | v -> v)
+                    .AsValue()
+                    .GetValue<string> ()
+
+            {
+                ExternalThing = arg_0
+            }
+namespace ConsumePlugin
+
 /// Module containing JSON parsing extension members for the ToGetExtensionMethod type
 [<AutoOpen>]
 module ToGetExtensionMethodJsonParseExtension =
@@ -129,9 +201,9 @@ module ToGetExtensionMethodJsonParseExtension =
 
         /// Parse from a JSON node.
         static member jsonParse (node : System.Text.Json.Nodes.JsonNode) : ToGetExtensionMethod =
-            let Whiskey = System.Numerics.BigInteger.Parse (node.["whiskey"].ToJsonString ())
+            let arg_20 = System.Numerics.BigInteger.Parse (node.["whiskey"].ToJsonString ())
 
-            let Victor =
+            let arg_19 =
                 (match node.["victor"] with
                  | null ->
                      raise (
@@ -143,7 +215,7 @@ module ToGetExtensionMethodJsonParseExtension =
                     .AsValue()
                     .GetValue<System.Char> ()
 
-            let Uniform =
+            let arg_18 =
                 (match node.["uniform"] with
                  | null ->
                      raise (
@@ -155,7 +227,7 @@ module ToGetExtensionMethodJsonParseExtension =
                     .AsValue()
                     .GetValue<System.Decimal> ()
 
-            let Tango =
+            let arg_17 =
                 (match node.["tango"] with
                  | null ->
                      raise (
@@ -167,7 +239,7 @@ module ToGetExtensionMethodJsonParseExtension =
                     .AsValue()
                     .GetValue<System.SByte> ()
 
-            let Quebec =
+            let arg_16 =
                 (match node.["quebec"] with
                  | null ->
                      raise (
@@ -179,7 +251,7 @@ module ToGetExtensionMethodJsonParseExtension =
                     .AsValue()
                     .GetValue<System.Byte> ()
 
-            let Papa =
+            let arg_15 =
                 (match node.["papa"] with
                  | null ->
                      raise (
@@ -191,7 +263,7 @@ module ToGetExtensionMethodJsonParseExtension =
                     .AsValue()
                     .GetValue<System.Byte> ()
 
-            let Oscar =
+            let arg_14 =
                 (match node.["oscar"] with
                  | null ->
                      raise (
@@ -203,7 +275,7 @@ module ToGetExtensionMethodJsonParseExtension =
                     .AsValue()
                     .GetValue<System.SByte> ()
 
-            let November =
+            let arg_13 =
                 (match node.["november"] with
                  | null ->
                      raise (
@@ -215,7 +287,7 @@ module ToGetExtensionMethodJsonParseExtension =
                     .AsValue()
                     .GetValue<System.UInt16> ()
 
-            let Mike =
+            let arg_12 =
                 (match node.["mike"] with
                  | null ->
                      raise (
@@ -227,7 +299,7 @@ module ToGetExtensionMethodJsonParseExtension =
                     .AsValue()
                     .GetValue<System.Int16> ()
 
-            let Lima =
+            let arg_11 =
                 (match node.["lima"] with
                  | null ->
                      raise (
@@ -239,7 +311,7 @@ module ToGetExtensionMethodJsonParseExtension =
                     .AsValue()
                     .GetValue<System.UInt32> ()
 
-            let Kilo =
+            let arg_10 =
                 (match node.["kilo"] with
                  | null ->
                      raise (
@@ -251,7 +323,7 @@ module ToGetExtensionMethodJsonParseExtension =
                     .AsValue()
                     .GetValue<System.Int32> ()
 
-            let Juliette =
+            let arg_9 =
                 (match node.["juliette"] with
                  | null ->
                      raise (
@@ -263,7 +335,7 @@ module ToGetExtensionMethodJsonParseExtension =
                     .AsValue()
                     .GetValue<System.UInt32> ()
 
-            let India =
+            let arg_8 =
                 (match node.["india"] with
                  | null ->
                      raise (
@@ -275,7 +347,7 @@ module ToGetExtensionMethodJsonParseExtension =
                     .AsValue()
                     .GetValue<int> ()
 
-            let Hotel =
+            let arg_7 =
                 (match node.["hotel"] with
                  | null ->
                      raise (
@@ -287,7 +359,7 @@ module ToGetExtensionMethodJsonParseExtension =
                     .AsValue()
                     .GetValue<System.UInt64> ()
 
-            let Golf =
+            let arg_6 =
                 (match node.["golf"] with
                  | null ->
                      raise (
@@ -299,7 +371,7 @@ module ToGetExtensionMethodJsonParseExtension =
                     .AsValue()
                     .GetValue<System.Int64> ()
 
-            let Foxtrot =
+            let arg_5 =
                 (match node.["foxtrot"] with
                  | null ->
                      raise (
@@ -311,7 +383,7 @@ module ToGetExtensionMethodJsonParseExtension =
                     .AsValue()
                     .GetValue<System.Double> ()
 
-            let Echo =
+            let arg_4 =
                 (match node.["echo"] with
                  | null ->
                      raise (
@@ -323,7 +395,7 @@ module ToGetExtensionMethodJsonParseExtension =
                     .AsValue()
                     .GetValue<System.Single> ()
 
-            let Delta =
+            let arg_3 =
                 (match node.["delta"] with
                  | null ->
                      raise (
@@ -335,7 +407,7 @@ module ToGetExtensionMethodJsonParseExtension =
                     .AsValue()
                     .GetValue<System.Single> ()
 
-            let Charlie =
+            let arg_2 =
                 (match node.["charlie"] with
                  | null ->
                      raise (
@@ -347,7 +419,7 @@ module ToGetExtensionMethodJsonParseExtension =
                     .AsValue()
                     .GetValue<float> ()
 
-            let Bravo =
+            let arg_1 =
                 (match node.["bravo"] with
                  | null ->
                      raise (
@@ -360,7 +432,7 @@ module ToGetExtensionMethodJsonParseExtension =
                     .GetValue<string> ()
                 |> System.Uri
 
-            let Alpha =
+            let arg_0 =
                 (match node.["alpha"] with
                  | null ->
                      raise (
@@ -373,25 +445,25 @@ module ToGetExtensionMethodJsonParseExtension =
                     .GetValue<string> ()
 
             {
-                Alpha = Alpha
+                Alpha = arg_0
-                Bravo = Bravo
+                Bravo = arg_1
-                Charlie = Charlie
+                Charlie = arg_2
-                Delta = Delta
+                Delta = arg_3
-                Echo = Echo
+                Echo = arg_4
-                Foxtrot = Foxtrot
+                Foxtrot = arg_5
-                Golf = Golf
+                Golf = arg_6
-                Hotel = Hotel
+                Hotel = arg_7
-                India = India
+                India = arg_8
-                Juliette = Juliette
+                Juliette = arg_9
-                Kilo = Kilo
+                Kilo = arg_10
-                Lima = Lima
+                Lima = arg_11
-                Mike = Mike
+                Mike = arg_12
-                November = November
+                November = arg_13
-                Oscar = Oscar
+                Oscar = arg_14
-                Papa = Papa
+                Papa = arg_15
-                Quebec = Quebec
+                Quebec = arg_16
-                Tango = Tango
+                Tango = arg_17
-                Uniform = Uniform
+                Uniform = arg_18
-                Victor = Victor
+                Victor = arg_19
-                Whiskey = Whiskey
+                Whiskey = arg_20
             }

ConsumePlugin/GeneratedMock.fs

@@ -19,9 +19,9 @@ type internal PublicTypeMock =
     /// An implementation where every method throws.
     static member Empty : PublicTypeMock =
         {
-            Mem1 = (fun x -> raise (System.NotImplementedException "Unimplemented mock function"))
+            Mem1 = (fun _ -> raise (System.NotImplementedException "Unimplemented mock function: Mem1"))
-            Mem2 = (fun x -> raise (System.NotImplementedException "Unimplemented mock function"))
+            Mem2 = (fun _ -> raise (System.NotImplementedException "Unimplemented mock function: Mem2"))
-            Mem3 = (fun x -> raise (System.NotImplementedException "Unimplemented mock function"))
+            Mem3 = (fun _ -> raise (System.NotImplementedException "Unimplemented mock function: Mem3"))
         }
 
     interface IPublicType with
@@ -44,9 +44,9 @@ type public PublicTypeInternalFalseMock =
     /// An implementation where every method throws.
     static member Empty : PublicTypeInternalFalseMock =
         {
-            Mem1 = (fun x -> raise (System.NotImplementedException "Unimplemented mock function"))
+            Mem1 = (fun _ -> raise (System.NotImplementedException "Unimplemented mock function: Mem1"))
-            Mem2 = (fun x -> raise (System.NotImplementedException "Unimplemented mock function"))
+            Mem2 = (fun _ -> raise (System.NotImplementedException "Unimplemented mock function: Mem2"))
-            Mem3 = (fun x -> raise (System.NotImplementedException "Unimplemented mock function"))
+            Mem3 = (fun _ -> raise (System.NotImplementedException "Unimplemented mock function: Mem3"))
         }
 
     interface IPublicTypeInternalFalse with
@@ -68,8 +68,8 @@ type internal InternalTypeMock =
     /// An implementation where every method throws.
     static member Empty : InternalTypeMock =
         {
-            Mem1 = (fun x -> raise (System.NotImplementedException "Unimplemented mock function"))
+            Mem1 = (fun _ -> raise (System.NotImplementedException "Unimplemented mock function: Mem1"))
-            Mem2 = (fun x -> raise (System.NotImplementedException "Unimplemented mock function"))
+            Mem2 = (fun _ -> raise (System.NotImplementedException "Unimplemented mock function: Mem2"))
         }
 
     interface InternalType with
@@ -90,8 +90,8 @@ type private PrivateTypeMock =
     /// An implementation where every method throws.
     static member Empty : PrivateTypeMock =
         {
-            Mem1 = (fun x -> raise (System.NotImplementedException "Unimplemented mock function"))
+            Mem1 = (fun _ -> raise (System.NotImplementedException "Unimplemented mock function: Mem1"))
-            Mem2 = (fun x -> raise (System.NotImplementedException "Unimplemented mock function"))
+            Mem2 = (fun _ -> raise (System.NotImplementedException "Unimplemented mock function: Mem2"))
         }
 
     interface PrivateType with
@@ -112,8 +112,8 @@ type private PrivateTypeInternalFalseMock =
     /// An implementation where every method throws.
     static member Empty : PrivateTypeInternalFalseMock =
         {
-            Mem1 = (fun x -> raise (System.NotImplementedException "Unimplemented mock function"))
+            Mem1 = (fun _ -> raise (System.NotImplementedException "Unimplemented mock function: Mem1"))
-            Mem2 = (fun x -> raise (System.NotImplementedException "Unimplemented mock function"))
+            Mem2 = (fun _ -> raise (System.NotImplementedException "Unimplemented mock function: Mem2"))
         }
 
     interface PrivateTypeInternalFalse with
@@ -133,7 +133,7 @@ type internal VeryPublicTypeMock<'a, 'b> =
     /// An implementation where every method throws.
     static member Empty () : VeryPublicTypeMock<'a, 'b> =
         {
-            Mem1 = (fun x -> raise (System.NotImplementedException "Unimplemented mock function"))
+            Mem1 = (fun _ -> raise (System.NotImplementedException "Unimplemented mock function: Mem1"))
         }
 
     interface VeryPublicType<'a, 'b> with
@@ -157,12 +157,12 @@ type internal CurriedMock<'a> =
     /// An implementation where every method throws.
     static member Empty () : CurriedMock<'a> =
         {
-            Mem1 = (fun x -> raise (System.NotImplementedException "Unimplemented mock function"))
+            Mem1 = (fun _ -> raise (System.NotImplementedException "Unimplemented mock function: Mem1"))
-            Mem2 = (fun x -> raise (System.NotImplementedException "Unimplemented mock function"))
+            Mem2 = (fun _ -> raise (System.NotImplementedException "Unimplemented mock function: Mem2"))
-            Mem3 = (fun x -> raise (System.NotImplementedException "Unimplemented mock function"))
+            Mem3 = (fun _ -> raise (System.NotImplementedException "Unimplemented mock function: Mem3"))
-            Mem4 = (fun x -> raise (System.NotImplementedException "Unimplemented mock function"))
+            Mem4 = (fun _ -> raise (System.NotImplementedException "Unimplemented mock function: Mem4"))
-            Mem5 = (fun x -> raise (System.NotImplementedException "Unimplemented mock function"))
+            Mem5 = (fun _ -> raise (System.NotImplementedException "Unimplemented mock function: Mem5"))
-            Mem6 = (fun x -> raise (System.NotImplementedException "Unimplemented mock function"))
+            Mem6 = (fun _ -> raise (System.NotImplementedException "Unimplemented mock function: Mem6"))
         }
 
     interface Curried<'a> with
@@ -195,9 +195,9 @@ type internal TypeWithInterfaceMock =
     /// An implementation where every method throws.
     static member Empty : TypeWithInterfaceMock =
         {
-            Dispose = (fun _ -> ())
+            Dispose = (fun () -> ())
-            Mem1 = (fun x -> raise (System.NotImplementedException "Unimplemented mock function"))
+            Mem1 = (fun _ -> raise (System.NotImplementedException "Unimplemented mock function: Mem1"))
-            Mem2 = (fun x -> raise (System.NotImplementedException "Unimplemented mock function"))
+            Mem2 = (fun _ -> raise (System.NotImplementedException "Unimplemented mock function: Mem2"))
         }
 
     interface TypeWithInterface with

ConsumePlugin/GeneratedPureGymDto.fs

@@ -41,12 +41,11 @@ module MemberJsonSerializeExtension =
 namespace PureGym
 
 /// Module containing JSON parsing methods for the GymOpeningHours type
-[<RequireQualifiedAccess>]
+[<RequireQualifiedAccess ; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
 module GymOpeningHours =
     /// Parse from a JSON node.
     let jsonParse (node : System.Text.Json.Nodes.JsonNode) : GymOpeningHours =
-        let OpeningHours =
+        let arg_1 =
             (match node.["openingHours"] with
              | null ->
                  raise (
@@ -59,7 +58,7 @@ module GymOpeningHours =
             |> Seq.map (fun elt -> elt.AsValue().GetValue<string> ())
             |> List.ofSeq
 
-        let IsAlwaysOpen =
+        let arg_0 =
             (match node.["isAlwaysOpen"] with
              | null ->
                  raise (
@@ -72,18 +71,17 @@ module GymOpeningHours =
                 .GetValue<bool> ()
 
         {
-            IsAlwaysOpen = IsAlwaysOpen
+            IsAlwaysOpen = arg_0
-            OpeningHours = OpeningHours
+            OpeningHours = arg_1
         }
 namespace PureGym
 
 /// Module containing JSON parsing methods for the GymAccessOptions type
-[<RequireQualifiedAccess>]
+[<RequireQualifiedAccess ; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
 module GymAccessOptions =
     /// Parse from a JSON node.
     let jsonParse (node : System.Text.Json.Nodes.JsonNode) : GymAccessOptions =
-        let QrCodeAccess =
+        let arg_1 =
             (match node.["qrCodeAccess"] with
              | null ->
                  raise (
@@ -95,7 +93,7 @@ module GymAccessOptions =
                 .AsValue()
                 .GetValue<bool> ()
 
-        let PinAccess =
+        let arg_0 =
             (match node.["pinAccess"] with
              | null ->
                  raise (
@@ -108,18 +106,17 @@ module GymAccessOptions =
                 .GetValue<bool> ()
 
         {
-            PinAccess = PinAccess
+            PinAccess = arg_0
-            QrCodeAccess = QrCodeAccess
+            QrCodeAccess = arg_1
         }
 namespace PureGym
 
 /// Module containing JSON parsing methods for the GymLocation type
-[<RequireQualifiedAccess>]
+[<RequireQualifiedAccess ; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
 module GymLocation =
     /// Parse from a JSON node.
     let jsonParse (node : System.Text.Json.Nodes.JsonNode) : GymLocation =
-        let Latitude =
+        let arg_1 =
             try
                 (match node.["latitude"] with
                  | null ->
@@ -151,8 +148,9 @@ module GymLocation =
                         reraise ()
                 else
                     reraise ()
+            |> LanguagePrimitives.FloatWithMeasure
 
-        let Longitude =
+        let arg_0 =
             try
                 (match node.["longitude"] with
                  | null ->
@@ -186,18 +184,17 @@ module GymLocation =
                     reraise ()
 
         {
-            Longitude = Longitude
+            Longitude = arg_0
-            Latitude = Latitude
+            Latitude = arg_1
         }
 namespace PureGym
 
 /// Module containing JSON parsing methods for the GymAddress type
-[<RequireQualifiedAccess>]
+[<RequireQualifiedAccess ; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
 module GymAddress =
     /// Parse from a JSON node.
     let jsonParse (node : System.Text.Json.Nodes.JsonNode) : GymAddress =
-        let Postcode =
+        let arg_5 =
             (match node.["postcode"] with
              | null ->
                  raise (
@@ -209,12 +206,12 @@ module GymAddress =
                 .AsValue()
                 .GetValue<string> ()
 
-        let County =
+        let arg_4 =
             match node.["county"] with
             | null -> None
             | v -> v.AsValue().GetValue<string> () |> Some
 
-        let Town =
+        let arg_3 =
             (match node.["town"] with
              | null ->
                  raise (
@@ -226,17 +223,17 @@ module GymAddress =
                 .AsValue()
                 .GetValue<string> ()
 
-        let AddressLine3 =
+        let arg_2 =
             match node.["addressLine3"] with
             | null -> None
             | v -> v.AsValue().GetValue<string> () |> Some
 
-        let AddressLine2 =
+        let arg_1 =
             match node.["addressLine2"] with
             | null -> None
             | v -> v.AsValue().GetValue<string> () |> Some
 
-        let AddressLine1 =
+        let arg_0 =
             (match node.["addressLine1"] with
              | null ->
                  raise (
@@ -249,22 +246,21 @@ module GymAddress =
                 .GetValue<string> ()
 
         {
-            AddressLine1 = AddressLine1
+            AddressLine1 = arg_0
-            AddressLine2 = AddressLine2
+            AddressLine2 = arg_1
-            AddressLine3 = AddressLine3
+            AddressLine3 = arg_2
-            Town = Town
+            Town = arg_3
-            County = County
+            County = arg_4
-            Postcode = Postcode
+            Postcode = arg_5
         }
 namespace PureGym
 
 /// Module containing JSON parsing methods for the Gym type
-[<RequireQualifiedAccess>]
+[<RequireQualifiedAccess ; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
 module Gym =
     /// Parse from a JSON node.
     let jsonParse (node : System.Text.Json.Nodes.JsonNode) : Gym =
-        let ReopenDate =
+        let arg_10 =
             (match node.["reopenDate"] with
              | null ->
                  raise (
@@ -276,7 +272,7 @@ module Gym =
                 .AsValue()
                 .GetValue<string> ()
 
-        let TimeZone =
+        let arg_9 =
             (match node.["timeZone"] with
              | null ->
                  raise (
@@ -288,7 +284,7 @@ module Gym =
                 .AsValue()
                 .GetValue<string> ()
 
-        let Location =
+        let arg_8 =
             GymLocation.jsonParse (
                 match node.["location"] with
                 | null ->
@@ -300,7 +296,7 @@ module Gym =
                 | v -> v
             )
 
-        let AccessOptions =
+        let arg_7 =
             GymAccessOptions.jsonParse (
                 match node.["accessOptions"] with
                 | null ->
@@ -312,7 +308,7 @@ module Gym =
                 | v -> v
             )
 
-        let GymOpeningHours =
+        let arg_6 =
             GymOpeningHours.jsonParse (
                 match node.["gymOpeningHours"] with
                 | null ->
@@ -324,7 +320,7 @@ module Gym =
                 | v -> v
             )
 
-        let EmailAddress =
+        let arg_5 =
             (match node.["emailAddress"] with
              | null ->
                  raise (
@@ -336,7 +332,7 @@ module Gym =
                 .AsValue()
                 .GetValue<string> ()
 
-        let PhoneNumber =
+        let arg_4 =
             (match node.["phoneNumber"] with
              | null ->
                  raise (
@@ -348,7 +344,7 @@ module Gym =
                 .AsValue()
                 .GetValue<string> ()
 
-        let Address =
+        let arg_3 =
             GymAddress.jsonParse (
                 match node.["address"] with
                 | null ->
@@ -360,7 +356,7 @@ module Gym =
                 | v -> v
             )
 
-        let Status =
+        let arg_2 =
             (match node.["status"] with
              | null ->
                  raise (
@@ -372,7 +368,7 @@ module Gym =
                 .AsValue()
                 .GetValue<int> ()
 
-        let Id =
+        let arg_1 =
             (match node.["id"] with
              | null ->
                  raise (
@@ -384,7 +380,7 @@ module Gym =
                 .AsValue()
                 .GetValue<int> ()
 
-        let Name =
+        let arg_0 =
             (match node.["name"] with
              | null ->
                  raise (
@@ -397,17 +393,17 @@ module Gym =
                 .GetValue<string> ()
 
         {
-            Name = Name
+            Name = arg_0
-            Id = Id
+            Id = arg_1
-            Status = Status
+            Status = arg_2
-            Address = Address
+            Address = arg_3
-            PhoneNumber = PhoneNumber
+            PhoneNumber = arg_4
-            EmailAddress = EmailAddress
+            EmailAddress = arg_5
-            GymOpeningHours = GymOpeningHours
+            GymOpeningHours = arg_6
-            AccessOptions = AccessOptions
+            AccessOptions = arg_7
-            Location = Location
+            Location = arg_8
-            TimeZone = TimeZone
+            TimeZone = arg_9
-            ReopenDate = ReopenDate
+            ReopenDate = arg_10
         }
 namespace PureGym
 
@@ -419,7 +415,7 @@ module MemberJsonParseExtension =
 
         /// Parse from a JSON node.
         static member jsonParse (node : System.Text.Json.Nodes.JsonNode) : Member =
-            let MemberStatus =
+            let arg_14 =
                 (match node.["memberStatus"] with
                  | null ->
                      raise (
@@ -431,7 +427,7 @@ module MemberJsonParseExtension =
                     .AsValue()
                     .GetValue<int> ()
 
-            let SuspendedReason =
+            let arg_13 =
                 (match node.["suspendedReason"] with
                  | null ->
                      raise (
@@ -443,7 +439,7 @@ module MemberJsonParseExtension =
                     .AsValue()
                     .GetValue<int> ()
 
-            let MembershipLevel =
+            let arg_12 =
                 (match node.["membershipLevel"] with
                  | null ->
                      raise (
@@ -455,7 +451,7 @@ module MemberJsonParseExtension =
                     .AsValue()
                     .GetValue<int> ()
 
-            let MembershipName =
+            let arg_11 =
                 (match node.["membershipName"] with
                  | null ->
                      raise (
@@ -467,7 +463,7 @@ module MemberJsonParseExtension =
                     .AsValue()
                     .GetValue<string> ()
 
-            let Postcode =
+            let arg_10 =
                 (match node.["postCode"] with
                  | null ->
                      raise (
@@ -479,7 +475,7 @@ module MemberJsonParseExtension =
                     .AsValue()
                     .GetValue<string> ()
 
-            let MobileNumber =
+            let arg_9 =
                 (match node.["mobileNumber"] with
                  | null ->
                      raise (
@@ -491,7 +487,7 @@ module MemberJsonParseExtension =
                     .AsValue()
                     .GetValue<string> ()
 
-            let DateOfBirth =
+            let arg_8 =
                 (match node.["dateofBirth"] with
                  | null ->
                      raise (
@@ -504,7 +500,7 @@ module MemberJsonParseExtension =
                     .GetValue<string> ()
                 |> System.DateOnly.Parse
 
-            let GymAccessPin =
+            let arg_7 =
                 (match node.["gymAccessPin"] with
                  | null ->
                      raise (
@@ -516,7 +512,7 @@ module MemberJsonParseExtension =
                     .AsValue()
                     .GetValue<string> ()
 
-            let EmailAddress =
+            let arg_6 =
                 (match node.["emailAddress"] with
                  | null ->
                      raise (
@@ -528,7 +524,7 @@ module MemberJsonParseExtension =
                     .AsValue()
                     .GetValue<string> ()
 
-            let HomeGymName =
+            let arg_5 =
                 (match node.["homeGymName"] with
                  | null ->
                      raise (
@@ -540,7 +536,7 @@ module MemberJsonParseExtension =
                     .AsValue()
                     .GetValue<string> ()
 
-            let HomeGymId =
+            let arg_4 =
                 (match node.["homeGymId"] with
                  | null ->
                      raise (
@@ -552,7 +548,7 @@ module MemberJsonParseExtension =
                     .AsValue()
                     .GetValue<int> ()
 
-            let LastName =
+            let arg_3 =
                 (match node.["lastName"] with
                  | null ->
                      raise (
@@ -564,7 +560,7 @@ module MemberJsonParseExtension =
                     .AsValue()
                     .GetValue<string> ()
 
-            let FirstName =
+            let arg_2 =
                 (match node.["firstName"] with
                  | null ->
                      raise (
@@ -576,7 +572,7 @@ module MemberJsonParseExtension =
                     .AsValue()
                     .GetValue<string> ()
 
-            let CompoundMemberId =
+            let arg_1 =
                 (match node.["compoundMemberId"] with
                  | null ->
                      raise (
@@ -588,7 +584,7 @@ module MemberJsonParseExtension =
                     .AsValue()
                     .GetValue<string> ()
 
-            let Id =
+            let arg_0 =
                 (match node.["id"] with
                  | null ->
                      raise (
@@ -601,31 +597,30 @@ module MemberJsonParseExtension =
                     .GetValue<int> ()
 
             {
-                Id = Id
+                Id = arg_0
-                CompoundMemberId = CompoundMemberId
+                CompoundMemberId = arg_1
-                FirstName = FirstName
+                FirstName = arg_2
-                LastName = LastName
+                LastName = arg_3
-                HomeGymId = HomeGymId
+                HomeGymId = arg_4
-                HomeGymName = HomeGymName
+                HomeGymName = arg_5
-                EmailAddress = EmailAddress
+                EmailAddress = arg_6
-                GymAccessPin = GymAccessPin
+                GymAccessPin = arg_7
-                DateOfBirth = DateOfBirth
+                DateOfBirth = arg_8
-                MobileNumber = MobileNumber
+                MobileNumber = arg_9
-                Postcode = Postcode
+                Postcode = arg_10
-                MembershipName = MembershipName
+                MembershipName = arg_11
-                MembershipLevel = MembershipLevel
+                MembershipLevel = arg_12
-                SuspendedReason = SuspendedReason
+                SuspendedReason = arg_13
-                MemberStatus = MemberStatus
+                MemberStatus = arg_14
             }
 namespace PureGym
 
 /// Module containing JSON parsing methods for the GymAttendance type
-[<RequireQualifiedAccess>]
+[<RequireQualifiedAccess ; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
 module GymAttendance =
     /// Parse from a JSON node.
     let jsonParse (node : System.Text.Json.Nodes.JsonNode) : GymAttendance =
-        let MaximumCapacity =
+        let arg_8 =
             (match node.["maximumCapacity"] with
              | null ->
                  raise (
@@ -637,7 +632,7 @@ module GymAttendance =
                 .AsValue()
                 .GetValue<int> ()
 
-        let LastRefreshedPeopleInClasses =
+        let arg_7 =
             (match node.["lastRefreshedPeopleInClasses"] with
              | null ->
                  raise (
@@ -650,7 +645,7 @@ module GymAttendance =
                 .GetValue<string> ()
             |> System.DateTime.Parse
 
-        let LastRefreshed =
+        let arg_6 =
             (match node.["lastRefreshed"] with
              | null ->
                  raise (
@@ -663,7 +658,7 @@ module GymAttendance =
                 .GetValue<string> ()
             |> System.DateTime.Parse
 
-        let AttendanceTime =
+        let arg_5 =
             (match node.["attendanceTime"] with
              | null ->
                  raise (
@@ -676,7 +671,7 @@ module GymAttendance =
                 .GetValue<string> ()
             |> System.DateTime.Parse
 
-        let IsApproximate =
+        let arg_4 =
             (match node.["isApproximate"] with
              | null ->
                  raise (
@@ -688,12 +683,12 @@ module GymAttendance =
                 .AsValue()
                 .GetValue<bool> ()
 
-        let TotalPeopleSuffix =
+        let arg_3 =
             match node.["totalPeopleSuffix"] with
             | null -> None
             | v -> v.AsValue().GetValue<string> () |> Some
 
-        let TotalPeopleInClasses =
+        let arg_2 =
             (match node.["totalPeopleInClasses"] with
              | null ->
                  raise (
@@ -705,7 +700,7 @@ module GymAttendance =
                 .AsValue()
                 .GetValue<int> ()
 
-        let TotalPeopleInGym =
+        let arg_1 =
             (match node.["totalPeopleInGym"] with
              | null ->
                  raise (
@@ -717,7 +712,7 @@ module GymAttendance =
                 .AsValue()
                 .GetValue<int> ()
 
-        let Description =
+        let arg_0 =
             (match node.["description"] with
              | null ->
                  raise (
@@ -730,25 +725,24 @@ module GymAttendance =
                 .GetValue<string> ()
 
         {
-            Description = Description
+            Description = arg_0
-            TotalPeopleInGym = TotalPeopleInGym
+            TotalPeopleInGym = arg_1
-            TotalPeopleInClasses = TotalPeopleInClasses
+            TotalPeopleInClasses = arg_2
-            TotalPeopleSuffix = TotalPeopleSuffix
+            TotalPeopleSuffix = arg_3
-            IsApproximate = IsApproximate
+            IsApproximate = arg_4
-            AttendanceTime = AttendanceTime
+            AttendanceTime = arg_5
-            LastRefreshed = LastRefreshed
+            LastRefreshed = arg_6
-            LastRefreshedPeopleInClasses = LastRefreshedPeopleInClasses
+            LastRefreshedPeopleInClasses = arg_7
-            MaximumCapacity = MaximumCapacity
+            MaximumCapacity = arg_8
         }
 namespace PureGym
 
 /// Module containing JSON parsing methods for the MemberActivityDto type
-[<RequireQualifiedAccess>]
+[<RequireQualifiedAccess ; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
 module MemberActivityDto =
     /// Parse from a JSON node.
     let jsonParse (node : System.Text.Json.Nodes.JsonNode) : MemberActivityDto =
-        let LastRefreshed =
+        let arg_5 =
             (match node.["lastRefreshed"] with
              | null ->
                  raise (
@@ -761,7 +755,7 @@ module MemberActivityDto =
                 .GetValue<string> ()
             |> System.DateTime.Parse
 
-        let IsEstimated =
+        let arg_4 =
             (match node.["isEstimated"] with
              | null ->
                  raise (
@@ -773,7 +767,7 @@ module MemberActivityDto =
                 .AsValue()
                 .GetValue<bool> ()
 
-        let TotalClasses =
+        let arg_3 =
             (match node.["totalClasses"] with
              | null ->
                  raise (
@@ -785,7 +779,7 @@ module MemberActivityDto =
                 .AsValue()
                 .GetValue<int> ()
 
-        let TotalVisits =
+        let arg_2 =
             (match node.["totalVisits"] with
              | null ->
                  raise (
@@ -797,7 +791,7 @@ module MemberActivityDto =
                 .AsValue()
                 .GetValue<int> ()
 
-        let AverageDuration =
+        let arg_1 =
             (match node.["averageDuration"] with
              | null ->
                  raise (
@@ -809,7 +803,7 @@ module MemberActivityDto =
                 .AsValue()
                 .GetValue<int> ()
 
-        let TotalDuration =
+        let arg_0 =
             (match node.["totalDuration"] with
              | null ->
                  raise (
@@ -822,22 +816,21 @@ module MemberActivityDto =
                 .GetValue<int> ()
 
         {
-            TotalDuration = TotalDuration
+            TotalDuration = arg_0
-            AverageDuration = AverageDuration
+            AverageDuration = arg_1
-            TotalVisits = TotalVisits
+            TotalVisits = arg_2
-            TotalClasses = TotalClasses
+            TotalClasses = arg_3
-            IsEstimated = IsEstimated
+            IsEstimated = arg_4
-            LastRefreshed = LastRefreshed
+            LastRefreshed = arg_5
         }
 namespace PureGym
 
 /// Module containing JSON parsing methods for the SessionsAggregate type
-[<RequireQualifiedAccess>]
+[<RequireQualifiedAccess ; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
 module SessionsAggregate =
     /// Parse from a JSON node.
     let jsonParse (node : System.Text.Json.Nodes.JsonNode) : SessionsAggregate =
-        let Duration =
+        let arg_2 =
             (match node.["Duration"] with
              | null ->
                  raise (
@@ -849,7 +842,7 @@ module SessionsAggregate =
                 .AsValue()
                 .GetValue<int> ()
 
-        let Visits =
+        let arg_1 =
             (match node.["Visits"] with
              | null ->
                  raise (
@@ -861,7 +854,7 @@ module SessionsAggregate =
                 .AsValue()
                 .GetValue<int> ()
 
-        let Activities =
+        let arg_0 =
             (match node.["Activities"] with
              | null ->
                  raise (
@@ -874,19 +867,18 @@ module SessionsAggregate =
                 .GetValue<int> ()
 
         {
-            Activities = Activities
+            Activities = arg_0
-            Visits = Visits
+            Visits = arg_1
-            Duration = Duration
+            Duration = arg_2
         }
 namespace PureGym
 
 /// Module containing JSON parsing methods for the VisitGym type
-[<RequireQualifiedAccess>]
+[<RequireQualifiedAccess ; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
 module VisitGym =
     /// Parse from a JSON node.
     let jsonParse (node : System.Text.Json.Nodes.JsonNode) : VisitGym =
-        let Status =
+        let arg_2 =
             (match node.["Status"] with
              | null ->
                  raise (
@@ -898,7 +890,7 @@ module VisitGym =
                 .AsValue()
                 .GetValue<string> ()
 
-        let Name =
+        let arg_1 =
             (match node.["Name"] with
              | null ->
                  raise (
@@ -910,7 +902,7 @@ module VisitGym =
                 .AsValue()
                 .GetValue<string> ()
 
-        let Id =
+        let arg_0 =
             (match node.["Id"] with
              | null ->
                  raise (
@@ -923,19 +915,18 @@ module VisitGym =
                 .GetValue<int> ()
 
         {
-            Id = Id
+            Id = arg_0
-            Name = Name
+            Name = arg_1
-            Status = Status
+            Status = arg_2
         }
 namespace PureGym
 
 /// Module containing JSON parsing methods for the Visit type
-[<RequireQualifiedAccess>]
+[<RequireQualifiedAccess ; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
 module Visit =
     /// Parse from a JSON node.
     let jsonParse (node : System.Text.Json.Nodes.JsonNode) : Visit =
-        let Gym =
+        let arg_3 =
             VisitGym.jsonParse (
                 match node.["Gym"] with
                 | null ->
@@ -947,7 +938,7 @@ module Visit =
                 | v -> v
             )
 
-        let Duration =
+        let arg_2 =
             (match node.["Duration"] with
              | null ->
                  raise (
@@ -959,7 +950,7 @@ module Visit =
                 .AsValue()
                 .GetValue<int> ()
 
-        let StartTime =
+        let arg_1 =
             (match node.["StartTime"] with
              | null ->
                  raise (
@@ -972,7 +963,7 @@ module Visit =
                 .GetValue<string> ()
             |> System.DateTime.Parse
 
-        let IsDurationEstimated =
+        let arg_0 =
             (match node.["IsDurationEstimated"] with
              | null ->
                  raise (
@@ -985,20 +976,19 @@ module Visit =
                 .GetValue<bool> ()
 
         {
-            IsDurationEstimated = IsDurationEstimated
+            IsDurationEstimated = arg_0
-            StartTime = StartTime
+            StartTime = arg_1
-            Duration = Duration
+            Duration = arg_2
-            Gym = Gym
+            Gym = arg_3
         }
 namespace PureGym
 
 /// Module containing JSON parsing methods for the SessionsSummary type
-[<RequireQualifiedAccess>]
+[<RequireQualifiedAccess ; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
 module SessionsSummary =
     /// Parse from a JSON node.
     let jsonParse (node : System.Text.Json.Nodes.JsonNode) : SessionsSummary =
-        let ThisWeek =
+        let arg_1 =
             SessionsAggregate.jsonParse (
                 match node.["ThisWeek"] with
                 | null ->
@@ -1010,7 +1000,7 @@ module SessionsSummary =
                 | v -> v
             )
 
-        let Total =
+        let arg_0 =
             SessionsAggregate.jsonParse (
                 match node.["Total"] with
                 | null ->
@@ -1023,18 +1013,17 @@ module SessionsSummary =
             )
 
         {
-            Total = Total
+            Total = arg_0
-            ThisWeek = ThisWeek
+            ThisWeek = arg_1
         }
 namespace PureGym
 
 /// Module containing JSON parsing methods for the Sessions type
-[<RequireQualifiedAccess>]
+[<RequireQualifiedAccess ; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
 module Sessions =
     /// Parse from a JSON node.
     let jsonParse (node : System.Text.Json.Nodes.JsonNode) : Sessions =
-        let Visits =
+        let arg_1 =
             (match node.["Visits"] with
              | null ->
                  raise (
@@ -1047,7 +1036,7 @@ module Sessions =
             |> Seq.map (fun elt -> Visit.jsonParse elt)
             |> List.ofSeq
 
-        let Summary =
+        let arg_0 =
             SessionsSummary.jsonParse (
                 match node.["Summary"] with
                 | null ->
@@ -1060,18 +1049,17 @@ module Sessions =
             )
 
         {
-            Summary = Summary
+            Summary = arg_0
-            Visits = Visits
+            Visits = arg_1
         }
 namespace PureGym
 
 /// Module containing JSON parsing methods for the UriThing type
-[<RequireQualifiedAccess>]
+[<RequireQualifiedAccess ; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
 module UriThing =
     /// Parse from a JSON node.
     let jsonParse (node : System.Text.Json.Nodes.JsonNode) : UriThing =
-        let SomeUri =
+        let arg_0 =
             (match node.["someUri"] with
              | null ->
                  raise (
@@ -1085,5 +1073,5 @@ module UriThing =
             |> System.Uri
 
         {
-            SomeUri = SomeUri
+            SomeUri = arg_0
         }

ConsumePlugin/GeneratedRestClient.fs

@@ -17,8 +17,7 @@ open System.Net.Http
 open RestEase
 
 /// Module for constructing a REST client.
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
+[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix) ; RequireQualifiedAccess>]
-[<RequireQualifiedAccess>]
 module PureGymApi =
     /// Create a REST client.
     let make (client : System.Net.Http.HttpClient) : IPureGymApi =
@@ -1055,8 +1054,7 @@ open System.Net.Http
 open RestEase
 
 /// Module for constructing a REST client.
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
+[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix) ; RequireQualifiedAccess>]
-[<RequireQualifiedAccess>]
 module internal ApiWithoutBaseAddress =
     /// Create a REST client.
     let make (client : System.Net.Http.HttpClient) : IApiWithoutBaseAddress =
@@ -1107,8 +1105,7 @@ open System.Net.Http
 open RestEase
 
 /// Module for constructing a REST client.
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
+[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix) ; RequireQualifiedAccess>]
-[<RequireQualifiedAccess>]
 module ApiWithBasePath =
     /// Create a REST client.
     let make (client : System.Net.Http.HttpClient) : IApiWithBasePath =
@@ -1159,8 +1156,7 @@ open System.Net.Http
 open RestEase
 
 /// Module for constructing a REST client.
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
+[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix) ; RequireQualifiedAccess>]
-[<RequireQualifiedAccess>]
 module ApiWithBasePathAndAddress =
     /// Create a REST client.
     let make (client : System.Net.Http.HttpClient) : IApiWithBasePathAndAddress =
@@ -1205,8 +1201,7 @@ open System.Net.Http
 open RestEase
 
 /// Module for constructing a REST client.
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
+[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix) ; RequireQualifiedAccess>]
-[<RequireQualifiedAccess>]
 module ApiWithHeaders =
     /// Create a REST client. The input functions will be re-evaluated on every HTTP request to obtain the required values for the corresponding header properties.
     let make
@@ -1268,8 +1263,7 @@ open System.Net.Http
 open RestEase
 
 /// Module for constructing a REST client.
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
+[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix) ; RequireQualifiedAccess>]
-[<RequireQualifiedAccess>]
 module ApiWithHeaders2 =
     /// Create a REST client. The input functions will be re-evaluated on every HTTP request to obtain the required values for the corresponding header properties.
     let make

ConsumePlugin/GeneratedSerde.fs

@@ -149,6 +149,37 @@ module JsonRecordTypeWithBothJsonSerializeExtension =
                 )
 
             node :> _
+namespace ConsumePlugin
+
+open System
+open System.Collections.Generic
+open System.Text.Json.Serialization
+
+/// Module containing JSON serializing extension members for the FirstDu type
+[<AutoOpen>]
+module FirstDuJsonSerializeExtension =
+    /// Extension methods for JSON parsing
+    type FirstDu with
+
+        /// Serialize to a JSON node
+        static member toJsonNode (input : FirstDu) : System.Text.Json.Nodes.JsonNode =
+            let node = System.Text.Json.Nodes.JsonObject ()
+
+            match input with
+            | FirstDu.EmptyCase -> node.Add ("type", System.Text.Json.Nodes.JsonValue.Create "emptyCase")
+            | FirstDu.Case1 arg0 ->
+                node.Add ("type", System.Text.Json.Nodes.JsonValue.Create "case1")
+                let dataNode = System.Text.Json.Nodes.JsonObject ()
+                dataNode.Add ("data", System.Text.Json.Nodes.JsonValue.Create<string> arg0)
+                node.Add ("data", dataNode)
+            | FirstDu.Case2 (arg0, arg1) ->
+                node.Add ("type", System.Text.Json.Nodes.JsonValue.Create "case2")
+                let dataNode = System.Text.Json.Nodes.JsonObject ()
+                dataNode.Add ("record", JsonRecordTypeWithBoth.toJsonNode arg0)
+                dataNode.Add ("i", System.Text.Json.Nodes.JsonValue.Create<int> arg1)
+                node.Add ("data", dataNode)
+
+            node :> _
 
 namespace ConsumePlugin
 
@@ -160,7 +191,7 @@ module InnerTypeWithBothJsonParseExtension =
 
         /// Parse from a JSON node.
         static member jsonParse (node : System.Text.Json.Nodes.JsonNode) : InnerTypeWithBoth =
-            let ConcreteDict =
+            let arg_4 =
                 (match node.["concreteDict"] with
                  | null ->
                      raise (
@@ -178,7 +209,7 @@ module InnerTypeWithBothJsonParseExtension =
                 |> Seq.map System.Collections.Generic.KeyValuePair
                 |> System.Collections.Generic.Dictionary
 
-            let Dict =
+            let arg_3 =
                 (match node.["dict"] with
                  | null ->
                      raise (
@@ -195,7 +226,7 @@ module InnerTypeWithBothJsonParseExtension =
                 )
                 |> dict
 
-            let ReadOnlyDict =
+            let arg_2 =
                 (match node.["readOnlyDict"] with
                  | null ->
                      raise (
@@ -217,7 +248,7 @@ module InnerTypeWithBothJsonParseExtension =
                 )
                 |> readOnlyDict
 
-            let Map =
+            let arg_1 =
                 (match node.["map"] with
                  | null ->
                      raise (
@@ -234,7 +265,7 @@ module InnerTypeWithBothJsonParseExtension =
                 )
                 |> Map.ofSeq
 
-            let Thing =
+            let arg_0 =
                 (match node.[("it's-a-me")] with
                  | null ->
                      raise (
@@ -248,11 +279,11 @@ module InnerTypeWithBothJsonParseExtension =
                 |> System.Guid.Parse
 
             {
-                Thing = Thing
+                Thing = arg_0
-                Map = Map
+                Map = arg_1
-                ReadOnlyDict = ReadOnlyDict
+                ReadOnlyDict = arg_2
-                Dict = Dict
+                Dict = arg_3
-                ConcreteDict = ConcreteDict
+                ConcreteDict = arg_4
             }
 namespace ConsumePlugin
 
@@ -264,7 +295,7 @@ module JsonRecordTypeWithBothJsonParseExtension =
 
         /// Parse from a JSON node.
         static member jsonParse (node : System.Text.Json.Nodes.JsonNode) : JsonRecordTypeWithBoth =
-            let F =
+            let arg_5 =
                 (match node.["f"] with
                  | null ->
                      raise (
@@ -277,7 +308,7 @@ module JsonRecordTypeWithBothJsonParseExtension =
                 |> Seq.map (fun elt -> elt.AsValue().GetValue<int> ())
                 |> Array.ofSeq
 
-            let E =
+            let arg_4 =
                 (match node.["e"] with
                  | null ->
                      raise (
@@ -290,7 +321,7 @@ module JsonRecordTypeWithBothJsonParseExtension =
                 |> Seq.map (fun elt -> elt.AsValue().GetValue<string> ())
                 |> Array.ofSeq
 
-            let D =
+            let arg_3 =
                 InnerTypeWithBoth.jsonParse (
                     match node.["d"] with
                     | null ->
@@ -302,7 +333,7 @@ module JsonRecordTypeWithBothJsonParseExtension =
                     | v -> v
                 )
 
-            let C =
+            let arg_2 =
                 (match node.["c"] with
                  | null ->
                      raise (
@@ -315,7 +346,7 @@ module JsonRecordTypeWithBothJsonParseExtension =
                 |> Seq.map (fun elt -> elt.AsValue().GetValue<int> ())
                 |> List.ofSeq
 
-            let B =
+            let arg_1 =
                 (match node.["b"] with
                  | null ->
                      raise (
@@ -327,7 +358,7 @@ module JsonRecordTypeWithBothJsonParseExtension =
                     .AsValue()
                     .GetValue<string> ()
 
-            let A =
+            let arg_0 =
                 (match node.["a"] with
                  | null ->
                      raise (
@@ -340,10 +371,90 @@ module JsonRecordTypeWithBothJsonParseExtension =
                     .GetValue<int> ()
 
             {
-                A = A
+                A = arg_0
-                B = B
+                B = arg_1
-                C = C
+                C = arg_2
-                D = D
+                D = arg_3
-                E = E
+                E = arg_4
-                F = F
+                F = arg_5
             }
+namespace ConsumePlugin
+
+/// Module containing JSON parsing extension members for the FirstDu type
+[<AutoOpen>]
+module FirstDuJsonParseExtension =
+    /// Extension methods for JSON parsing
+    type FirstDu with
+
+        /// Parse from a JSON node.
+        static member jsonParse (node : System.Text.Json.Nodes.JsonNode) : FirstDu =
+            let ty =
+                (match node.["type"] with
+                 | null ->
+                     raise (
+                         System.Collections.Generic.KeyNotFoundException (
+                             sprintf "Required key '%s' not found on JSON object" ("type")
+                         )
+                     )
+                 | v -> v)
+                |> (fun v -> v.GetValue<string> ())
+
+            match ty with
+            | "emptyCase" -> FirstDu.EmptyCase
+            | "case1" ->
+                let node =
+                    (match node.["data"] with
+                     | null ->
+                         raise (
+                             System.Collections.Generic.KeyNotFoundException (
+                                 sprintf "Required key '%s' not found on JSON object" ("data")
+                             )
+                         )
+                     | v -> v)
+
+                FirstDu.Case1 (
+                    (match node.["data"] with
+                     | null ->
+                         raise (
+                             System.Collections.Generic.KeyNotFoundException (
+                                 sprintf "Required key '%s' not found on JSON object" ("data")
+                             )
+                         )
+                     | v -> v)
+                        .AsValue()
+                        .GetValue<string> ()
+                )
+            | "case2" ->
+                let node =
+                    (match node.["data"] with
+                     | null ->
+                         raise (
+                             System.Collections.Generic.KeyNotFoundException (
+                                 sprintf "Required key '%s' not found on JSON object" ("data")
+                             )
+                         )
+                     | v -> v)
+
+                FirstDu.Case2 (
+                    JsonRecordTypeWithBoth.jsonParse (
+                        match node.["record"] with
+                        | null ->
+                            raise (
+                                System.Collections.Generic.KeyNotFoundException (
+                                    sprintf "Required key '%s' not found on JSON object" ("record")
+                                )
+                            )
+                        | v -> v
+                    ),
+                    (match node.["i"] with
+                     | null ->
+                         raise (
+                             System.Collections.Generic.KeyNotFoundException (
+                                 sprintf "Required key '%s' not found on JSON object" ("i")
+                             )
+                         )
+                     | v -> v)
+                        .AsValue()
+                        .GetValue<int> ()
+                )
+            | v -> failwith ("Unrecognised 'type' field value: " + v)

ConsumePlugin/GeneratedVault.fs

@@ -8,12 +8,11 @@
 namespace ConsumePlugin
 
 /// Module containing JSON parsing methods for the JwtVaultAuthResponse type
-[<RequireQualifiedAccess>]
+[<RequireQualifiedAccess ; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
 module JwtVaultAuthResponse =
     /// Parse from a JSON node.
     let jsonParse (node : System.Text.Json.Nodes.JsonNode) : JwtVaultAuthResponse =
-        let NumUses =
+        let arg_10 =
             (match node.["num_uses"] with
              | null ->
                  raise (
@@ -25,7 +24,7 @@ module JwtVaultAuthResponse =
                 .AsValue()
                 .GetValue<int> ()
 
-        let Orphan =
+        let arg_9 =
             (match node.["orphan"] with
              | null ->
                  raise (
@@ -37,7 +36,7 @@ module JwtVaultAuthResponse =
                 .AsValue()
                 .GetValue<bool> ()
 
-        let EntityId =
+        let arg_8 =
             (match node.["entity_id"] with
              | null ->
                  raise (
@@ -49,7 +48,7 @@ module JwtVaultAuthResponse =
                 .AsValue()
                 .GetValue<string> ()
 
-        let TokenType =
+        let arg_7 =
             (match node.["token_type"] with
              | null ->
                  raise (
@@ -61,7 +60,7 @@ module JwtVaultAuthResponse =
                 .AsValue()
                 .GetValue<string> ()
 
-        let Renewable =
+        let arg_6 =
             (match node.["renewable"] with
              | null ->
                  raise (
@@ -73,7 +72,7 @@ module JwtVaultAuthResponse =
                 .AsValue()
                 .GetValue<bool> ()
 
-        let LeaseDuration =
+        let arg_5 =
             (match node.["lease_duration"] with
              | null ->
                  raise (
@@ -85,7 +84,7 @@ module JwtVaultAuthResponse =
                 .AsValue()
                 .GetValue<int> ()
 
-        let IdentityPolicies =
+        let arg_4 =
             (match node.["identity_policies"] with
              | null ->
                  raise (
@@ -98,7 +97,7 @@ module JwtVaultAuthResponse =
             |> Seq.map (fun elt -> elt.AsValue().GetValue<string> ())
             |> List.ofSeq
 
-        let TokenPolicies =
+        let arg_3 =
             (match node.["token_policies"] with
              | null ->
                  raise (
@@ -111,7 +110,7 @@ module JwtVaultAuthResponse =
             |> Seq.map (fun elt -> elt.AsValue().GetValue<string> ())
             |> List.ofSeq
 
-        let Policies =
+        let arg_2 =
             (match node.["policies"] with
              | null ->
                  raise (
@@ -124,7 +123,7 @@ module JwtVaultAuthResponse =
             |> Seq.map (fun elt -> elt.AsValue().GetValue<string> ())
             |> List.ofSeq
 
-        let Accessor =
+        let arg_1 =
             (match node.["accessor"] with
              | null ->
                  raise (
@@ -136,7 +135,7 @@ module JwtVaultAuthResponse =
                 .AsValue()
                 .GetValue<string> ()
 
-        let ClientToken =
+        let arg_0 =
             (match node.["client_token"] with
              | null ->
                  raise (
@@ -149,27 +148,26 @@ module JwtVaultAuthResponse =
                 .GetValue<string> ()
 
         {
-            ClientToken = ClientToken
+            ClientToken = arg_0
-            Accessor = Accessor
+            Accessor = arg_1
-            Policies = Policies
+            Policies = arg_2
-            TokenPolicies = TokenPolicies
+            TokenPolicies = arg_3
-            IdentityPolicies = IdentityPolicies
+            IdentityPolicies = arg_4
-            LeaseDuration = LeaseDuration
+            LeaseDuration = arg_5
-            Renewable = Renewable
+            Renewable = arg_6
-            TokenType = TokenType
+            TokenType = arg_7
-            EntityId = EntityId
+            EntityId = arg_8
-            Orphan = Orphan
+            Orphan = arg_9
-            NumUses = NumUses
+            NumUses = arg_10
         }
 namespace ConsumePlugin
 
 /// Module containing JSON parsing methods for the JwtVaultResponse type
-[<RequireQualifiedAccess>]
+[<RequireQualifiedAccess ; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
 module JwtVaultResponse =
     /// Parse from a JSON node.
     let jsonParse (node : System.Text.Json.Nodes.JsonNode) : JwtVaultResponse =
-        let Auth =
+        let arg_4 =
             JwtVaultAuthResponse.jsonParse (
                 match node.["auth"] with
                 | null ->
@@ -181,7 +179,7 @@ module JwtVaultResponse =
                 | v -> v
             )
 
-        let LeaseDuration =
+        let arg_3 =
             (match node.["lease_duration"] with
              | null ->
                  raise (
@@ -193,7 +191,7 @@ module JwtVaultResponse =
                 .AsValue()
                 .GetValue<int> ()
 
-        let Renewable =
+        let arg_2 =
             (match node.["renewable"] with
              | null ->
                  raise (
@@ -205,7 +203,7 @@ module JwtVaultResponse =
                 .AsValue()
                 .GetValue<bool> ()
 
-        let LeaseId =
+        let arg_1 =
             (match node.["lease_id"] with
              | null ->
                  raise (
@@ -217,7 +215,7 @@ module JwtVaultResponse =
                 .AsValue()
                 .GetValue<string> ()
 
-        let RequestId =
+        let arg_0 =
             (match node.["request_id"] with
              | null ->
                  raise (
@@ -230,21 +228,20 @@ module JwtVaultResponse =
                 .GetValue<string> ()
 
         {
-            RequestId = RequestId
+            RequestId = arg_0
-            LeaseId = LeaseId
+            LeaseId = arg_1
-            Renewable = Renewable
+            Renewable = arg_2
-            LeaseDuration = LeaseDuration
+            LeaseDuration = arg_3
-            Auth = Auth
+            Auth = arg_4
         }
 namespace ConsumePlugin
 
 /// Module containing JSON parsing methods for the JwtSecretResponse type
-[<RequireQualifiedAccess>]
+[<RequireQualifiedAccess ; CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
 module JwtSecretResponse =
     /// Parse from a JSON node.
     let jsonParse (node : System.Text.Json.Nodes.JsonNode) : JwtSecretResponse =
-        let Data8 =
+        let arg_11 =
             (match node.["data8"] with
              | null ->
                  raise (
@@ -262,7 +259,7 @@ module JwtSecretResponse =
             |> Seq.map System.Collections.Generic.KeyValuePair
             |> System.Collections.Generic.Dictionary
 
-        let Data7 =
+        let arg_10 =
             (match node.["data7"] with
              | null ->
                  raise (
@@ -279,7 +276,7 @@ module JwtSecretResponse =
             )
             |> Map.ofSeq
 
-        let Data6 =
+        let arg_9 =
             (match node.["data6"] with
              | null ->
                  raise (
@@ -296,7 +293,7 @@ module JwtSecretResponse =
             )
             |> dict
 
-        let Data5 =
+        let arg_8 =
             (match node.["data5"] with
              | null ->
                  raise (
@@ -313,7 +310,7 @@ module JwtSecretResponse =
             )
             |> readOnlyDict
 
-        let Data4 =
+        let arg_7 =
             (match node.["data4"] with
              | null ->
                  raise (
@@ -330,7 +327,7 @@ module JwtSecretResponse =
             )
             |> Map.ofSeq
 
-        let Data3 =
+        let arg_6 =
             (match node.["data3"] with
              | null ->
                  raise (
@@ -348,7 +345,7 @@ module JwtSecretResponse =
             |> Seq.map System.Collections.Generic.KeyValuePair
             |> System.Collections.Generic.Dictionary
 
-        let Data2 =
+        let arg_5 =
             (match node.["data2"] with
              | null ->
                  raise (
@@ -365,7 +362,7 @@ module JwtSecretResponse =
             )
             |> dict
 
-        let Data =
+        let arg_4 =
             (match node.["data"] with
              | null ->
                  raise (
@@ -382,7 +379,7 @@ module JwtSecretResponse =
             )
             |> readOnlyDict
 
-        let LeaseDuration =
+        let arg_3 =
             (match node.["lease_duration"] with
              | null ->
                  raise (
@@ -394,7 +391,7 @@ module JwtSecretResponse =
                 .AsValue()
                 .GetValue<int> ()
 
-        let Renewable =
+        let arg_2 =
             (match node.["renewable"] with
              | null ->
                  raise (
@@ -406,7 +403,7 @@ module JwtSecretResponse =
                 .AsValue()
                 .GetValue<bool> ()
 
-        let LeaseId =
+        let arg_1 =
             (match node.["lease_id"] with
              | null ->
                  raise (
@@ -418,7 +415,7 @@ module JwtSecretResponse =
                 .AsValue()
                 .GetValue<string> ()
 
-        let RequestId =
+        let arg_0 =
             (match node.["request_id"] with
              | null ->
                  raise (
@@ -431,18 +428,18 @@ module JwtSecretResponse =
                 .GetValue<string> ()
 
         {
-            RequestId = RequestId
+            RequestId = arg_0
-            LeaseId = LeaseId
+            LeaseId = arg_1
-            Renewable = Renewable
+            Renewable = arg_2
-            LeaseDuration = LeaseDuration
+            LeaseDuration = arg_3
-            Data = Data
+            Data = arg_4
-            Data2 = Data2
+            Data2 = arg_5
-            Data3 = Data3
+            Data3 = arg_6
-            Data4 = Data4
+            Data4 = arg_7
-            Data5 = Data5
+            Data5 = arg_8
-            Data6 = Data6
+            Data6 = arg_9
-            Data7 = Data7
+            Data7 = arg_10
-            Data8 = Data8
+            Data8 = arg_11
         }
 
 namespace ConsumePlugin
@@ -455,8 +452,7 @@ open System.Threading.Tasks
 open RestEase
 
 /// Module for constructing a REST client.
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
+[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix) ; RequireQualifiedAccess>]
-[<RequireQualifiedAccess>]
 module VaultClient =
     /// Create a REST client.
     let make (client : System.Net.Http.HttpClient) : IVaultClient =
@@ -553,8 +549,7 @@ open System.Threading.Tasks
 open RestEase
 
 /// Module for constructing a REST client.
-[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
+[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix) ; RequireQualifiedAccess>]
-[<RequireQualifiedAccess>]
 module VaultClientNonExtensionMethod =
     /// Create a REST client.
     let make (client : System.Net.Http.HttpClient) : IVaultClientNonExtensionMethod =

ConsumePlugin/JsonRecord.fs

@@ -29,6 +29,28 @@ type JsonRecordType =
         F : int[]
     }
 
+[<WoofWare.Myriad.Plugins.JsonParse>]
+type internal InternalTypeNotExtension =
+    {
+        [<JsonPropertyName(Literals.something)>]
+        InternalThing : string
+    }
+
+[<WoofWare.Myriad.Plugins.JsonSerialize>]
+type internal InternalTypeNotExtensionSerial =
+    {
+        [<JsonPropertyName(Literals.something)>]
+        InternalThing2 : string
+    }
+
+[<WoofWare.Myriad.Plugins.JsonParse true>]
+[<WoofWare.Myriad.Plugins.JsonSerialize true>]
+type internal InternalTypeExtension =
+    {
+        [<JsonPropertyName(Literals.something)>]
+        ExternalThing : string
+    }
+
 [<WoofWare.Myriad.Plugins.JsonParse true>]
 type ToGetExtensionMethod =
     {

ConsumePlugin/ListCata.fs

@@ -50,7 +50,7 @@ module MyListCata =
                                }) ->
                     instructions.Add (Instruction.MyList_Cons (head))
                     instructions.Add (Instruction.Process__MyList tail)
-            | Instruction.MyList_Cons (head) ->
+            | Instruction.MyList_Cons head ->
                 let tail = myListStack.[myListStack.Count - 1]
                 myListStack.RemoveAt (myListStack.Count - 1)
                 cata.MyList.Cons head tail |> myListStack.Add
@@ -103,7 +103,7 @@ module MyList2Cata =
                 | MyList2.Cons (arg0_0, arg1_0) ->
                     instructions.Add (Instruction.MyList2_Cons (arg0_0))
                     instructions.Add (Instruction.Process__MyList2 arg1_0)
-            | Instruction.MyList2_Cons (arg0_0) ->
+            | Instruction.MyList2_Cons arg0_0 ->
                 let arg1_0 = myList2Stack.[myList2Stack.Count - 1]
                 myList2Stack.RemoveAt (myList2Stack.Count - 1)
                 cata.MyList2.Cons arg0_0 arg1_0 |> myList2Stack.Add

ConsumePlugin/PureGymDto.fs

@@ -19,13 +19,16 @@ type GymAccessOptions =
         QrCodeAccess : bool
     }
 
+[<Measure>]
+type measure
+
 [<WoofWare.Myriad.Plugins.JsonParse>]
 type GymLocation =
     {
         [<JsonNumberHandling(JsonNumberHandling.AllowReadingFromString)>]
         Longitude : float
         [<JsonNumberHandling(JsonNumberHandling.AllowReadingFromString)>]
-        Latitude : float
+        Latitude : float<measure>
     }
 
 [<WoofWare.Myriad.Plugins.JsonParse>]

ConsumePlugin/SerializationAndDeserialization.fs

@@ -27,3 +27,10 @@ type JsonRecordTypeWithBoth =
         E : string array
         F : int[]
     }
+
+[<WoofWare.Myriad.Plugins.JsonSerialize true>]
+[<WoofWare.Myriad.Plugins.JsonParse true>]
+type FirstDu =
+    | EmptyCase
+    | Case1 of data : string
+    | Case2 of record : JsonRecordTypeWithBoth * i : int

Directory.Build.props

@@ -10,19 +10,10 @@
     <WarnOn>FS3388,FS3559</WarnOn>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Nerdbank.GitVersioning" Version="3.6.133" PrivateAssets="all"/>
+    <PackageReference Include="Nerdbank.GitVersioning" Version="3.6.139" PrivateAssets="all"/>
-    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="All"/>
     <SourceLinkGitHubHost Include="github.com" ContentUrl="https://raw.githubusercontent.com"/>
   </ItemGroup>
-  <!--
+  <PropertyGroup Condition="'$(GITHUB_ACTION)' != ''">
-    SourceLink doesn't support F# deterministic builds out of the box,
+    <ContinuousIntegrationBuild>true</ContinuousIntegrationBuild>
-    so tell SourceLink that our source root is going to be remapped.
+  </PropertyGroup>
-  -->
-  <Target Name="MapSourceRoot" BeforeTargets="_GenerateSourceLinkFile" Condition="'$(SourceRootMappedPathsFeatureSupported)' != 'true'">
-    <ItemGroup>
-      <SourceRoot Update="@(SourceRoot)">
-        <MappedPath>Z:\CheckoutRoot\WoofWare.Myriad\</MappedPath>
-      </SourceRoot>
-    </ItemGroup>
-  </Target>
 </Project>

README.md

@@ -8,23 +8,20 @@
 
 Some helpers in [Myriad](https://github.com/MoiraeSoftware/myriad/) which might be useful.
 
-These are currently somewhat experimental, and I personally am their primary customer.
+Currently implemented:
-The `RemoveOptions` generator in particular is extremely half-baked.
+
+* `JsonParse` (to stamp out `jsonParse : JsonNode -> 'T` methods).
+* `JsonSerialize` (to stamp out `toJsonNode : 'T -> JsonNode` methods).
+* `HttpClient` (to stamp out a [RestEase](https://github.com/canton7/RestEase)-style HTTP client).
+* `GenerateMock` (to stamp out a record type corresponding to an interface, like a compile-time [Foq](https://github.com/fsprojects/Foq)).
+* `CreateCatamorphism` (to stamp out a non-stack-overflowing [catamorphism](https://fsharpforfunandprofit.com/posts/recursive-types-and-folds/) for a discriminated union).
+* `RemoveOptions` (to strip `option` modifiers from a type) - this one is particularly half-baked!
 
 If you would like to ensure that your particular use-case remains unbroken, please do contribute tests to this repository.
 The `ConsumePlugin` assembly contains a number of invocations of these source generators,
 so you just need to add copies of your types to that assembly to ensure that I will at least notice if I break the build;
 and if you add tests to `WoofWare.Myriad.Plugins.Test` then I will also notice if I break the runtime semantics of the generated code.
 
-Currently implemented:
-
-* `JsonParse` (to stamp out `jsonParse : JsonNode -> 'T` methods);
-* `JsonSerialize` (to stamp out `toJsonNode : 'T -> JsonNode` methods);
-* `RemoveOptions` (to strip `option` modifiers from a type).
-* `HttpClient` (to stamp out a [RestEase](https://github.com/canton7/RestEase)-style HTTP client).
-* `GenerateMock` (to stamp out a record type corresponding to an interface).
-* `CreateCatamorphism` (to stamp out a non-stack-overflowing [catamorphism](https://fsharpforfunandprofit.com/posts/recursive-types-and-folds/) for a discriminated union).
-
 ## `JsonParse`
 
 Takes records like this:
@@ -143,6 +140,9 @@ module InnerTypeWithBoth =
         node
 ```
 
+Also includes an *opinionated* serializer for discriminated unions.
+(Any such serializer must be opinionated, because JSON does not natively model DUs.)
+
 As in `JsonParse`, you can optionally supply the boolean `true` to the attribute,
 which will cause Myriad to stamp out an extension method rather than a module with the same name as the type.
 

WoofWare.Myriad.Plugins.Attributes/Test/WoofWare.Myriad.Plugins.Attributes.Test.fsproj

@@ -12,7 +12,7 @@
     </ItemGroup>
 
     <ItemGroup>
-        <PackageReference Include="ApiSurface" Version="4.0.40" />
+        <PackageReference Include="ApiSurface" Version="4.0.41" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0"/>
         <PackageReference Include="NUnit" Version="4.1.0"/>
         <PackageReference Include="NUnit3TestAdapter" Version="4.5.0"/>

WoofWare.Myriad.Plugins.Test/PureGymDtos.fs

@@ -58,7 +58,7 @@ module PureGymDtos =
         [
             """{"latitude": 1.0, "longitude": 3.0}""",
             {
-                GymLocation.Latitude = 1.0
+                GymLocation.Latitude = 1.0<measure>
                 Longitude = 3.0
             }
         ]
@@ -96,7 +96,7 @@ module PureGymDtos =
                 Location =
                     {
                         Longitude = -0.110252
-                        Latitude = 51.480401
+                        Latitude = 51.480401<measure>
                     }
                 TimeZone = "Europe/London"
                 ReopenDate = "2021-04-12T00:00:00+01 Europe/London"

WoofWare.Myriad.Plugins.Test/TestJsonSerialize/TestJsonSerde.fs

@@ -2,10 +2,9 @@ namespace WoofWare.Myriad.Plugins.Test
 
 open System
 open System.Collections.Generic
-open System.IO
-open System.Text
-open System.Text.Json
 open System.Text.Json.Nodes
+open FsCheck.Random
+open Microsoft.FSharp.Reflection
 open NUnit.Framework
 open FsCheck
 open FsUnitTyped
@@ -124,3 +123,83 @@ module TestJsonSerde =
         |> shouldEqual (
             sprintf """{"it\u0027s-a-me":"%s","map":{},"readOnlyDict":{},"dict":{},"concreteDict":{}}""" guidStr
         )
+
+    type Generators =
+        static member TestCase () =
+            { new Arbitrary<InnerTypeWithBoth>() with
+                override x.Generator = innerGen 5
+            }
+
+    let sanitiseInner (r : InnerTypeWithBoth) : InnerTypeWithBoth =
+        {
+            Thing = r.Thing
+            Map = r.Map
+            ReadOnlyDict = r.ReadOnlyDict
+            Dict = r.Dict
+            ConcreteDict = r.ConcreteDict
+        }
+
+    let sanitiseRec (r : JsonRecordTypeWithBoth) : JsonRecordTypeWithBoth =
+        {
+            A = r.A
+            B = if isNull r.B then "<null>" else r.B
+            C =
+                if Object.ReferenceEquals (r.C, (null : obj)) then
+                    []
+                else
+                    r.C
+            D = sanitiseInner r.D
+            E = if isNull r.E then [||] else r.E
+            F =
+                if Object.ReferenceEquals (r.F, (null : obj)) then
+                    [||]
+                else
+                    r.F
+        }
+
+    let duGen =
+        gen {
+            let! case = Gen.choose (0, 2)
+
+            match case with
+            | 0 -> return FirstDu.EmptyCase
+            | 1 ->
+                let! s = Arb.generate<NonNull<string>>
+                return FirstDu.Case1 s.Get
+            | 2 ->
+                let! i = Arb.generate<int>
+                let! record = outerGen
+                return FirstDu.Case2 (record, i)
+            | _ -> return failwith $"unexpected: %i{case}"
+        }
+
+    [<Test>]
+    let ``Discriminated union works`` () =
+        let property (du : FirstDu) : unit =
+            du
+            |> FirstDu.toJsonNode
+            |> fun s -> s.ToJsonString ()
+            |> JsonNode.Parse
+            |> FirstDu.jsonParse
+            |> shouldEqual du
+
+        property |> Prop.forAll (Arb.fromGen duGen) |> Check.QuickThrowOnFailure
+
+    [<Test>]
+    let ``DU generator covers all cases`` () =
+        let rand = Random ()
+        let cases = FSharpType.GetUnionCases typeof<FirstDu>
+        let counts = Array.zeroCreate<int> cases.Length
+
+        let decompose = FSharpValue.PreComputeUnionTagReader typeof<FirstDu>
+
+        let mutable i = 0
+
+        while i < 10_000 && Array.exists (fun i -> i = 0) counts do
+            let du = Gen.eval 10 (StdGen.StdGen (rand.Next (), rand.Next ())) duGen
+            let tag = decompose du
+            counts.[tag] <- counts.[tag] + 1
+            i <- i + 1
+
+        for i in counts do
+            i |> shouldBeGreaterThan 0

WoofWare.Myriad.Plugins.Test/TestSurface.fs

@@ -12,7 +12,8 @@ module TestSurface =
     let ``Ensure API surface has not been modified`` () = ApiSurface.assertIdentical assembly
 
     [<Test>]
-    let ``Check version against remote`` () =
+    // https://github.com/nunit/nunit3-vs-adapter/issues/876
+    let CheckVersionAgainstRemote () =
         MonotonicVersion.validate assembly "WoofWare.Myriad.Plugins"
 
     [<Test ; Explicit>]

WoofWare.Myriad.Plugins.Test/WoofWare.Myriad.Plugins.Test.fsproj

@@ -33,7 +33,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="ApiSurface" Version="4.0.40"/>
+    <PackageReference Include="ApiSurface" Version="4.0.41"/>
     <PackageReference Include="FsCheck" Version="2.16.6"/>
     <PackageReference Include="FsUnit" Version="6.0.0"/>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0"/>

WoofWare.Myriad.Plugins/AstHelper.fs

@@ -1,10 +1,8 @@
 namespace WoofWare.Myriad.Plugins
 
 open Fantomas.FCS.Syntax
-open Fantomas.FCS.SyntaxTrivia
 open Fantomas.FCS.Text.Range
 open Fantomas.FCS.Xml
-open Myriad.Core.AstExtensions
 
 type internal ParameterInfo =
     {
@@ -98,30 +96,6 @@ type internal AdtProduct =
 [<RequireQualifiedAccess>]
 module internal AstHelper =
 
-    /// Given e.g. "byte", returns "System.Byte".
-    let qualifyPrimitiveType (typeName : string) : LongIdent option =
-        match typeName with
-        | "float32"
-        | "single" -> [ "System" ; "Single" ] |> Some
-        | "float"
-        | "double" -> [ "System" ; "Double" ] |> Some
-        | "byte"
-        | "uint8" -> [ "System" ; "Byte" ] |> Some
-        | "sbyte"
-        | "int8" -> [ "System" ; "SByte" ] |> Some
-        | "int16" -> [ "System" ; "Int16" ] |> Some
-        | "int"
-        | "int32" -> [ "System" ; "Int32" ] |> Some
-        | "int64" -> [ "System" ; "Int64" ] |> Some
-        | "uint16" -> [ "System" ; "UInt16" ] |> Some
-        | "uint"
-        | "uint32" -> [ "System" ; "UInt32" ] |> Some
-        | "uint64" -> [ "System" ; "UInt64" ] |> Some
-        | "char" -> [ "System" ; "Char" ] |> Some
-        | "decimal" -> [ "System" ; "Decimal" ] |> Some
-        | _ -> None
-        |> Option.map (List.map Ident.Create)
-
     let instantiateRecord (fields : (RecordFieldName * SynExpr option) list) : SynExpr =
         let fields =
             fields
@@ -130,86 +104,17 @@ module internal AstHelper =
         SynExpr.Record (None, None, fields, range0)
 
     let defineRecordType (record : RecordType) : SynTypeDefn =
-        let repr =
-            SynTypeDefnRepr.Simple (SynTypeDefnSimpleRepr.Record (None, Seq.toList record.Fields, range0), range0)
-
         let name =
-            SynComponentInfo.Create (
+            SynComponentInfo.create record.Name
-                [ record.Name ],
+            |> SynComponentInfo.setAccessibility record.Accessibility
-                ?xmldoc = record.XmlDoc,
+            |> match record.XmlDoc with
-                ?parameters = record.Generics,
+               | None -> id
-                access = record.Accessibility
+               | Some doc -> SynComponentInfo.withDocString doc
-            )
+            |> SynComponentInfo.setGenerics record.Generics
 
-        let trivia : SynTypeDefnTrivia =
+        SynTypeDefnRepr.record (Seq.toList record.Fields)
-            {
+        |> SynTypeDefn.create name
-                LeadingKeyword = SynTypeDefnLeadingKeyword.Type range0
+        |> SynTypeDefn.withMemberDefns (defaultArg record.Members SynMemberDefns.Empty)
-                EqualsRange = Some range0
-                WithKeyword = Some range0
-            }
-
-        SynTypeDefn (name, repr, defaultArg record.Members SynMemberDefns.Empty, None, range0, trivia)
-
-    let isOptionIdent (ident : SynLongIdent) : bool =
-        match ident.LongIdent with
-        | [ i ] when System.String.Equals (i.idText, "option", System.StringComparison.OrdinalIgnoreCase) -> true
-        // TODO: consider Microsoft.FSharp.Option or whatever it is
-        | _ -> false
-
-    let isUnitIdent (ident : SynLongIdent) : bool =
-        match ident.LongIdent with
-        | [ i ] when System.String.Equals (i.idText, "unit", System.StringComparison.OrdinalIgnoreCase) -> true
-        | _ -> false
-
-    let isListIdent (ident : SynLongIdent) : bool =
-        match ident.LongIdent with
-        | [ i ] when System.String.Equals (i.idText, "list", System.StringComparison.OrdinalIgnoreCase) -> true
-        // TODO: consider FSharpList or whatever it is
-        | _ -> false
-
-    let isArrayIdent (ident : SynLongIdent) : bool =
-        match ident.LongIdent with
-        | [ i ] when
-            System.String.Equals (i.idText, "array", System.StringComparison.OrdinalIgnoreCase)
-            || System.String.Equals (i.idText, "[]", System.StringComparison.Ordinal)
-            ->
-            true
-        | _ -> false
-
-    let isResponseIdent (ident : SynLongIdent) : bool =
-        match ident.LongIdent |> List.map _.idText with
-        | [ "Response" ]
-        | [ "RestEase" ; "Response" ] -> true
-        | _ -> false
-
-    let isMapIdent (ident : SynLongIdent) : bool =
-        match ident.LongIdent |> List.map _.idText with
-        | [ "Map" ] -> true
-        | _ -> false
-
-    let isReadOnlyDictionaryIdent (ident : SynLongIdent) : bool =
-        match ident.LongIdent |> List.map _.idText with
-        | [ "IReadOnlyDictionary" ]
-        | [ "Generic" ; "IReadOnlyDictionary" ]
-        | [ "Collections" ; "Generic" ; "IReadOnlyDictionary" ]
-        | [ "System" ; "Collections" ; "Generic" ; "IReadOnlyDictionary" ] -> true
-        | _ -> false
-
-    let isDictionaryIdent (ident : SynLongIdent) : bool =
-        match ident.LongIdent |> List.map _.idText with
-        | [ "Dictionary" ]
-        | [ "Generic" ; "Dictionary" ]
-        | [ "Collections" ; "Generic" ; "Dictionary" ]
-        | [ "System" ; "Collections" ; "Generic" ; "Dictionary" ] -> true
-        | _ -> false
-
-    let isIDictionaryIdent (ident : SynLongIdent) : bool =
-        match ident.LongIdent |> List.map _.idText with
-        | [ "IDictionary" ]
-        | [ "Generic" ; "IDictionary" ]
-        | [ "Collections" ; "Generic" ; "IDictionary" ]
-        | [ "System" ; "Collections" ; "Generic" ; "IDictionary" ] -> true
-        | _ -> false
 
     let rec private extractOpensFromDecl (moduleDecls : SynModuleDecl list) : SynOpenDeclTarget list =
         moduleDecls
@@ -231,12 +136,12 @@ module internal AstHelper =
         | SynType.Paren (inner, _) ->
             let result, _ = convertSigParam inner
             result, true
-        | SynType.LongIdent ident ->
+        | SynType.LongIdent (SynLongIdent.SynLongIdent (ident, _, _)) ->
             {
                 Attributes = []
                 IsOptional = false
                 Id = None
-                Type = SynType.CreateLongIdent ident
+                Type = SynType.createLongIdent ident
             },
             false
         | SynType.SignatureParameter (attrs, opt, id, usedType, _) ->
@@ -254,7 +159,7 @@ module internal AstHelper =
                 Attributes = []
                 IsOptional = false
                 Id = None
-                Type = SynType.Var (typar, range0)
+                Type = SynType.var typar
             },
             false
         | _ -> failwithf "expected SignatureParameter, got: %+A" ty
@@ -283,10 +188,6 @@ module internal AstHelper =
             }
         | _ -> failwithf "Didn't have alternating type-and-star in interface member definition: %+A" tupleType
 
-    let toFun (inputs : SynType list) (ret : SynType) : SynType =
-        (ret, List.rev inputs)
-        ||> List.fold (fun ty input -> SynType.CreateFun (input, ty))
-
     /// Returns the args (where these are tuple types if curried) in order, and the return type.
     let rec getType (ty : SynType) : (SynType * bool) list * SynType =
         match ty with
@@ -299,7 +200,7 @@ module internal AstHelper =
                 | SynType.Paren (argType, _) -> getType argType, true
                 | _ -> getType argType, false
 
-            ((toFun (List.map fst inputArgs) inputRet), hasParen) :: args, ret
+            ((SynType.toFun (List.map fst inputArgs) inputRet), hasParen) :: args, ret
         | _ -> [], ty
 
     let private parseMember (slotSig : SynValSig) (flags : SynMemberFlags) : Choice<MemberInfo, PropertyInfo> =
@@ -356,7 +257,7 @@ module internal AstHelper =
                                     Attributes = []
                                     IsOptional = false
                                     Id = None
-                                    Type = SynType.CreateLongIdent (SynLongIdent.CreateFromLongIdent ident)
+                                    Type = SynType.createLongIdent ident
                                 }
                                 |> List.singleton
                         }
@@ -368,7 +269,7 @@ module internal AstHelper =
                                     Attributes = []
                                     IsOptional = false
                                     Id = None
-                                    Type = SynType.Var (typar, range0)
+                                    Type = SynType.var typar
                                 }
                                 |> List.singleton
                         }
@@ -522,190 +423,3 @@ module internal AstHelper =
                 }
             )
         | _ -> failwithf "Failed to get record elements for type that was: %+A" repr
-
-[<AutoOpen>]
-module internal SynTypePatterns =
-    let (|OptionType|_|) (fieldType : SynType) =
-        match fieldType with
-        | SynType.App (SynType.LongIdent ident, _, [ innerType ], _, _, _, _) when AstHelper.isOptionIdent ident ->
-            Some innerType
-        | _ -> None
-
-    let (|UnitType|_|) (fieldType : SynType) : unit option =
-        match fieldType with
-        | SynType.LongIdent ident when AstHelper.isUnitIdent ident -> Some ()
-        | _ -> None
-
-    let (|ListType|_|) (fieldType : SynType) =
-        match fieldType with
-        | SynType.App (SynType.LongIdent ident, _, [ innerType ], _, _, _, _) when AstHelper.isListIdent ident ->
-            Some innerType
-        | _ -> None
-
-    let (|ArrayType|_|) (fieldType : SynType) =
-        match fieldType with
-        | SynType.App (SynType.LongIdent ident, _, [ innerType ], _, _, _, _) when AstHelper.isArrayIdent ident ->
-            Some innerType
-        | SynType.Array (1, innerType, _) -> Some innerType
-        | _ -> None
-
-    let (|RestEaseResponseType|_|) (fieldType : SynType) =
-        match fieldType with
-        | SynType.App (SynType.LongIdent ident, _, [ innerType ], _, _, _, _) when AstHelper.isResponseIdent ident ->
-            Some innerType
-        | _ -> None
-
-    let (|DictionaryType|_|) (fieldType : SynType) =
-        match fieldType with
-        | SynType.App (SynType.LongIdent ident, _, [ key ; value ], _, _, _, _) when AstHelper.isDictionaryIdent ident ->
-            Some (key, value)
-        | _ -> None
-
-    let (|IDictionaryType|_|) (fieldType : SynType) =
-        match fieldType with
-        | SynType.App (SynType.LongIdent ident, _, [ key ; value ], _, _, _, _) when AstHelper.isIDictionaryIdent ident ->
-            Some (key, value)
-        | _ -> None
-
-    let (|IReadOnlyDictionaryType|_|) (fieldType : SynType) =
-        match fieldType with
-        | SynType.App (SynType.LongIdent ident, _, [ key ; value ], _, _, _, _) when
-            AstHelper.isReadOnlyDictionaryIdent ident
-            ->
-            Some (key, value)
-        | _ -> None
-
-    let (|MapType|_|) (fieldType : SynType) =
-        match fieldType with
-        | SynType.App (SynType.LongIdent ident, _, [ key ; value ], _, _, _, _) when AstHelper.isMapIdent ident ->
-            Some (key, value)
-        | _ -> None
-
-    let (|BigInt|_|) (fieldType : SynType) : unit option =
-        match fieldType with
-        | SynType.LongIdent ident ->
-            match ident.LongIdent |> List.map _.idText with
-            | [ "bigint" ]
-            | [ "BigInteger" ]
-            | [ "Numerics" ; "BigInteger" ]
-            | [ "System" ; "Numerics" ; "BigInteger" ] -> Some ()
-            | _ -> None
-        | _ -> None
-
-    /// Returns the type, qualified as in e.g. `System.Boolean`.
-    let (|PrimitiveType|_|) (fieldType : SynType) : LongIdent option =
-        match fieldType with
-        | SynType.LongIdent ident ->
-            match ident.LongIdent with
-            | [ i ] -> AstHelper.qualifyPrimitiveType i.idText
-            | _ -> None
-        | _ -> None
-
-    let (|String|_|) (fieldType : SynType) : unit option =
-        match fieldType with
-        | SynType.LongIdent ident ->
-            match ident.LongIdent with
-            | [ i ] ->
-                [ "string" ]
-                |> List.tryFind (fun s -> s = i.idText)
-                |> Option.map ignore<string>
-            | _ -> None
-        | _ -> None
-
-    let (|Byte|_|) (fieldType : SynType) : unit option =
-        match fieldType with
-        | SynType.LongIdent ident ->
-            match ident.LongIdent with
-            | [ i ] -> [ "byte" ] |> List.tryFind (fun s -> s = i.idText) |> Option.map ignore<string>
-            | _ -> None
-        | _ -> None
-
-    let (|Guid|_|) (fieldType : SynType) : unit option =
-        match fieldType with
-        | SynType.LongIdent ident ->
-            match ident.LongIdent |> List.map (fun i -> i.idText) with
-            | [ "System" ; "Guid" ]
-            | [ "Guid" ] -> Some ()
-            | _ -> None
-        | _ -> None
-
-    let (|HttpResponseMessage|_|) (fieldType : SynType) : unit option =
-        match fieldType with
-        | SynType.LongIdent ident ->
-            match ident.LongIdent |> List.map (fun i -> i.idText) with
-            | [ "System" ; "Net" ; "Http" ; "HttpResponseMessage" ]
-            | [ "Net" ; "Http" ; "HttpResponseMessage" ]
-            | [ "Http" ; "HttpResponseMessage" ]
-            | [ "HttpResponseMessage" ] -> Some ()
-            | _ -> None
-        | _ -> None
-
-    let (|HttpContent|_|) (fieldType : SynType) : unit option =
-        match fieldType with
-        | SynType.LongIdent ident ->
-            match ident.LongIdent |> List.map (fun i -> i.idText) with
-            | [ "System" ; "Net" ; "Http" ; "HttpContent" ]
-            | [ "Net" ; "Http" ; "HttpContent" ]
-            | [ "Http" ; "HttpContent" ]
-            | [ "HttpContent" ] -> Some ()
-            | _ -> None
-        | _ -> None
-
-    let (|Stream|_|) (fieldType : SynType) : unit option =
-        match fieldType with
-        | SynType.LongIdent ident ->
-            match ident.LongIdent |> List.map (fun i -> i.idText) with
-            | [ "System" ; "IO" ; "Stream" ]
-            | [ "IO" ; "Stream" ]
-            | [ "Stream" ] -> Some ()
-            | _ -> None
-        | _ -> None
-
-    let (|NumberType|_|) (fieldType : SynType) =
-        match fieldType with
-        | SynType.LongIdent ident ->
-            match ident.LongIdent with
-            | [ i ] -> [ "string" ; "float" ; "int" ; "bool" ] |> List.tryFind (fun s -> s = i.idText)
-            | _ -> None
-        | _ -> None
-
-    let (|DateOnly|_|) (fieldType : SynType) =
-        match fieldType with
-        | SynType.LongIdent (SynLongIdent.SynLongIdent (ident, _, _)) ->
-            match ident |> List.map (fun i -> i.idText) with
-            | [ "System" ; "DateOnly" ]
-            | [ "DateOnly" ] -> Some ()
-            | _ -> None
-        | _ -> None
-
-    let (|DateTime|_|) (fieldType : SynType) =
-        match fieldType with
-        | SynType.LongIdent (SynLongIdent.SynLongIdent (ident, _, _)) ->
-            match ident |> List.map (fun i -> i.idText) with
-            | [ "System" ; "DateTime" ]
-            | [ "DateTime" ] -> Some ()
-            | _ -> None
-        | _ -> None
-
-    let (|Uri|_|) (fieldType : SynType) =
-        match fieldType with
-        | SynType.LongIdent (SynLongIdent.SynLongIdent (ident, _, _)) ->
-            match ident |> List.map (fun i -> i.idText) with
-            | [ "System" ; "Uri" ]
-            | [ "Uri" ] -> Some ()
-            | _ -> None
-        | _ -> None
-
-    let (|Task|_|) (fieldType : SynType) : SynType option =
-        match fieldType with
-        | SynType.App (SynType.LongIdent (SynLongIdent.SynLongIdent (ident, _, _)), _, args, _, _, _, _) ->
-            match ident |> List.map (fun i -> i.idText) with
-            | [ "Task" ]
-            | [ "Tasks" ; "Task" ]
-            | [ "Threading" ; "Tasks" ; "Task" ]
-            | [ "System" ; "Threading" ; "Tasks" ; "Task" ] ->
-                match args with
-                | [ arg ] -> Some arg
-                | _ -> failwithf "Expected Task to be applied to exactly one arg, but got: %+A" args
-            | _ -> None
-        | _ -> None

WoofWare.Myriad.Plugins/HttpClientGenerator.fs

@@ -2,9 +2,6 @@ namespace WoofWare.Myriad.Plugins
 
 open System.Net.Http
 open Fantomas.FCS.Syntax
-open Fantomas.FCS.SyntaxTrivia
-open Fantomas.FCS.Xml
-open Myriad.Core
 
 type internal HttpClientGeneratorOutputSpec =
     {
@@ -14,7 +11,6 @@ type internal HttpClientGeneratorOutputSpec =
 [<RequireQualifiedAccess>]
 module internal HttpClientGenerator =
     open Fantomas.FCS.Text.Range
-    open Myriad.Core.Ast
 
     [<RequireQualifiedAccess>]
     type PathSpec =
@@ -82,7 +78,7 @@ module internal HttpClientGenerator =
         let matchingAttrs =
             attrs
             |> List.choose (fun attr ->
-                match attr.TypeName.AsString with
+                match SynLongIdent.toString attr.TypeName with
                 | "Get"
                 | "GetAttribute"
                 | "WoofWare.Myriad.Plugins.RestEase.Get"
@@ -144,7 +140,7 @@ module internal HttpClientGenerator =
     let extractHeaderInformation (attrs : SynAttribute list) : SynExpr list list =
         attrs
         |> List.choose (fun attr ->
-            match attr.TypeName.AsString with
+            match SynLongIdent.toString attr.TypeName with
             | "Header"
             | "RestEase.Header"
             | "WoofWare.Myriad.Plugins.RestEase.Header" ->
@@ -158,7 +154,7 @@ module internal HttpClientGenerator =
     let shouldAllowAnyStatusCode (attrs : SynAttribute list) : bool =
         attrs
         |> List.exists (fun attr ->
-            match attr.TypeName.AsString with
+            match SynLongIdent.toString attr.TypeName with
             | "AllowAnyStatusCode"
             | "AllowAnyStatusCodeAttribute"
             | "RestEase.AllowAnyStatusCode"
@@ -174,35 +170,6 @@ module internal HttpClientGenerator =
         (info : MemberInfo)
         : SynMemberDefn
         =
-        let valInfo =
-            SynValInfo.SynValInfo (
-                [
-                    [ SynArgInfo.Empty ]
-                    [
-                        for arg in info.Args do
-                            match arg.Id with
-                            | None -> yield SynArgInfo.CreateIdString (failwith "TODO: create an arg name")
-                            | Some id -> yield SynArgInfo.CreateId id
-                    ]
-                ],
-                SynArgInfo.Empty
-            )
-
-        let valData =
-            SynValData (
-                Some
-                    {
-                        IsInstance = true
-                        IsDispatchSlot = false
-                        IsOverrideOrExplicitImpl = true
-                        IsFinal = false
-                        GetterOrSetterIsCompilerGenerated = false
-                        MemberKind = SynMemberKind.Member
-                    },
-                valInfo,
-                None
-            )
-
         let args =
             info.Args
             |> List.map (fun arg ->
@@ -213,15 +180,13 @@ module internal HttpClientGenerator =
 
                 let argType =
                     if arg.IsOptional then
-                        SynType.CreateApp (
+                        SynType.appPostfix "option" arg.Type
-                            SynType.CreateLongIdent (SynLongIdent.CreateString "option"),
-                            [ arg.Type ],
-                            isPostfix = true
-                        )
                     else
                         arg.Type
 
-                argName, SynPat.CreateTyped (SynPat.CreateNamed argName, argType)
+                // We'll be tupling these up anyway, so don't need the parens
+                // around the type annotations.
+                argName, SynPat.annotateTypeNoParen argType (SynPat.namedI argName)
             )
 
         let cancellationTokenArg =
@@ -229,26 +194,6 @@ module internal HttpClientGenerator =
             | None -> failwith $"expected an optional cancellation token as final arg in %s{info.Identifier.idText}"
             | Some (arg, _) -> arg
 
-        let argPats =
-            let args = args |> List.map snd
-
-            SynPat.Tuple (false, args, List.replicate (args.Length - 1) range0, range0)
-            |> SynPat.CreateParen
-            |> List.singleton
-            |> SynArgPats.Pats
-
-        let headPat =
-            let thisIdent = if variableHeaders.IsEmpty then "_" else "this"
-
-            SynPat.LongIdent (
-                SynLongIdent.CreateFromLongIdent [ Ident.Create thisIdent ; info.Identifier ],
-                None,
-                None,
-                argPats,
-                None,
-                range0
-            )
-
         let requestUriTrailer =
             (info.UrlTemplate, info.Args)
             ||> List.fold (fun template arg ->
@@ -269,14 +214,12 @@ module internal HttpClientGenerator =
                         template
                         |> SynExpr.callMethodArg
                             "Replace"
-                            (SynExpr.CreateParenedTuple
+                            (SynExpr.tuple
                                 [
-                                    SynExpr.CreateConstString ("{" + substituteId + "}")
+                                    SynExpr.CreateConst ("{" + substituteId + "}")
-                                    SynExpr.callMethod "ToString" (SynExpr.CreateIdent varName)
+                                    SynExpr.callMethod "ToString" (SynExpr.createIdent' varName)
                                     |> SynExpr.pipeThroughFunction (
-                                        SynExpr.CreateLongIdent (
+                                        SynExpr.createLongIdent [ "System" ; "Web" ; "HttpUtility" ; "UrlEncode" ]
-                                            SynLongIdent.Create [ "System" ; "Web" ; "HttpUtility" ; "UrlEncode" ]
-                                        )
                                     )
                                 ])
                     | _ -> template
@@ -316,33 +259,27 @@ module internal HttpClientGenerator =
                 let urlSeparator =
                     // apparent Myriad bug: `IndexOf '?'` gets formatted as `IndexOf ?` which is clearly wrong
                     let questionMark =
-                        SynExpr.CreateParen (
+                        SynExpr.CreateConst 63
-                            SynExpr.CreateApp (
+                        |> SynExpr.applyFunction (SynExpr.createIdent "char")
-                                SynExpr.CreateIdentString "char",
+                        |> SynExpr.paren
-                                SynExpr.CreateConst (SynConst.Int32 63)
-                            )
-                        )
 
                     let containsQuestion =
                         info.UrlTemplate
                         |> SynExpr.callMethodArg "IndexOf" questionMark
-                        |> SynExpr.greaterThanOrEqual (SynExpr.CreateConst (SynConst.Int32 0))
+                        |> SynExpr.greaterThanOrEqual (SynExpr.CreateConst 0)
 
-                    SynExpr.ifThenElse
+                    SynExpr.ifThenElse containsQuestion (SynExpr.CreateConst "?") (SynExpr.CreateConst "&")
-                        containsQuestion
+                    |> SynExpr.paren
-                        (SynExpr.CreateConst (SynConst.CreateString "?"))
-                        (SynExpr.CreateConst (SynConst.CreateString "&"))
-                    |> SynExpr.CreateParen
 
                 let prefix =
-                    SynExpr.CreateIdent firstValueId
+                    SynExpr.createIdent' firstValueId
                     |> SynExpr.toString firstValue.Type
-                    |> SynExpr.CreateParen
+                    |> SynExpr.paren
                     |> SynExpr.pipeThroughFunction (
-                        SynExpr.CreateLongIdent (SynLongIdent.Create [ "System" ; "Web" ; "HttpUtility" ; "UrlEncode" ])
+                        SynExpr.createLongIdent [ "System" ; "Web" ; "HttpUtility" ; "UrlEncode" ]
                     )
-                    |> SynExpr.CreateParen
+                    |> SynExpr.paren
-                    |> SynExpr.plus (SynExpr.plus urlSeparator (SynExpr.CreateConstString (firstKey + "=")))
+                    |> SynExpr.plus (SynExpr.plus urlSeparator (SynExpr.CreateConst (firstKey + "=")))
 
                 (prefix, queryParams)
                 ||> List.fold (fun uri (paramKey, paramValue) ->
@@ -351,82 +288,55 @@ module internal HttpClientGenerator =
                         | None -> failwith "Unable to get parameter variable name from anonymous parameter"
                         | Some id -> id
 
-                    SynExpr.toString paramValue.Type (SynExpr.CreateIdent paramValueId)
+                    SynExpr.toString paramValue.Type (SynExpr.createIdent' paramValueId)
-                    |> SynExpr.CreateParen
+                    |> SynExpr.paren
                     |> SynExpr.pipeThroughFunction (
-                        SynExpr.CreateLongIdent (
+                        SynExpr.createLongIdent [ "System" ; "Web" ; "HttpUtility" ; "UrlEncode" ]
-                            SynLongIdent.Create [ "System" ; "Web" ; "HttpUtility" ; "UrlEncode" ]
-                        )
                     )
-                    |> SynExpr.CreateParen
+                    |> SynExpr.paren
-                    |> SynExpr.plus (SynExpr.plus uri (SynExpr.CreateConstString ("&" + paramKey + "=")))
+                    |> SynExpr.plus (SynExpr.plus uri (SynExpr.CreateConst ("&" + paramKey + "=")))
                 )
                 |> SynExpr.plus requestUriTrailer
-                |> SynExpr.CreateParen
+                |> SynExpr.paren
 
         let requestUri =
-            let uriIdent = SynExpr.CreateLongIdent (SynLongIdent.Create [ "System" ; "Uri" ])
+            let uriIdent = SynExpr.createLongIdent [ "System" ; "Uri" ]
+
+            let baseAddress = SynExpr.createLongIdent [ "client" ; "BaseAddress" ]
 
             let baseAddress =
-                SynExpr.CreateLongIdent (SynLongIdent.Create [ "client" ; "BaseAddress" ])
+                [
+                    SynMatchClause.create
+                        SynPat.createNull
+                        (match info.BaseAddress with
+                         | None ->
+                             [
+                                 SynExpr.applyFunction (SynExpr.createIdent "nameof") (SynExpr.paren baseAddress)
+                                 SynExpr.CreateConst
+                                     "No base address was supplied on the type, and no BaseAddress was on the HttpClient."
+                             ]
+                             |> SynExpr.tuple
+                             |> SynExpr.applyFunction (SynExpr.createLongIdent [ "System" ; "ArgumentNullException" ])
+                             |> SynExpr.paren
+                             |> SynExpr.applyFunction (SynExpr.createIdent "raise")
+                         | Some expr -> SynExpr.applyFunction uriIdent expr)
+                    SynMatchClause.create (SynPat.named "v") (SynExpr.createIdent "v")
+                ]
+                |> SynExpr.createMatch baseAddress
+                |> SynExpr.paren
 
-            let baseAddress =
+            [
-                SynExpr.CreateMatch (
+                baseAddress
-                    baseAddress,
+                SynExpr.applyFunction
-                    [
+                    uriIdent
-                        SynMatchClause.Create (
+                    (SynExpr.tuple
-                            SynPat.CreateNull,
+                        [
-                            None,
+                            requestUriTrailer
-                            match info.BaseAddress with
+                            SynExpr.createLongIdent [ "System" ; "UriKind" ; "Relative" ]
-                            | None ->
+                        ])
-                                SynExpr.CreateApp (
+            ]
-                                    SynExpr.CreateIdentString "raise",
+            |> SynExpr.tuple
-                                    SynExpr.CreateParen (
+            |> SynExpr.applyFunction uriIdent
-                                        SynExpr.CreateApp (
-                                            SynExpr.CreateLongIdent (
-                                                SynLongIdent.Create [ "System" ; "ArgumentNullException" ]
-                                            ),
-                                            SynExpr.CreateParenedTuple
-                                                [
-                                                    SynExpr.CreateApp (
-                                                        SynExpr.CreateIdentString "nameof",
-                                                        SynExpr.CreateParen baseAddress
-                                                    )
-                                                    SynExpr.CreateConstString
-                                                        "No base address was supplied on the type, and no BaseAddress was on the HttpClient."
-                                                ]
-                                        )
-                                    )
-                                )
-                            | Some expr -> SynExpr.CreateApp (uriIdent, expr)
-                        )
-                        SynMatchClause.Create (
-                            SynPat.CreateNamed (Ident.Create "v"),
-                            None,
-                            SynExpr.CreateIdentString "v"
-                        )
-                    ]
-                )
-                |> SynExpr.CreateParen
-
-            SynExpr.App (
-                ExprAtomicFlag.Atomic,
-                false,
-                uriIdent,
-                SynExpr.CreateParenedTuple
-                    [
-                        baseAddress
-                        SynExpr.CreateApp (
-                            uriIdent,
-                            SynExpr.CreateParenedTuple
-                                [
-                                    requestUriTrailer
-                                    SynExpr.CreateLongIdent (SynLongIdent.Create [ "System" ; "UriKind" ; "Relative" ])
-                                ]
-                        )
-                    ],
-                range0
-            )
 
         let bodyParams =
             info.Args
@@ -460,58 +370,43 @@ module internal HttpClientGenerator =
         let httpReqMessageConstructor =
             [
                 SynExpr.equals
-                    (SynExpr.CreateIdentString "Method")
+                    (SynExpr.createIdent "Method")
-                    (SynExpr.CreateLongIdent (
+                    (SynExpr.createLongIdent
-                        SynLongIdent.Create
+                        [ "System" ; "Net" ; "Http" ; "HttpMethod" ; httpMethodString info.HttpMethod ])
-                            [ "System" ; "Net" ; "Http" ; "HttpMethod" ; httpMethodString info.HttpMethod ]
+                SynExpr.equals (SynExpr.createIdent "RequestUri") (SynExpr.createIdent "uri")
-                    ))
-                SynExpr.equals (SynExpr.CreateIdentString "RequestUri") (SynExpr.CreateIdentString "uri")
             ]
-            |> SynExpr.CreateParenedTuple
+            |> SynExpr.tupleNoParen
 
         let returnExpr =
             match info.TaskReturnType with
-            | HttpResponseMessage -> SynExpr.CreateIdentString "response"
+            | HttpResponseMessage -> SynExpr.createIdent "response"
-            | String -> SynExpr.CreateIdentString "responseString"
+            | String -> SynExpr.createIdent "responseString"
-            | Stream -> SynExpr.CreateIdentString "responseStream"
+            | Stream -> SynExpr.createIdent "responseStream"
             | RestEaseResponseType contents ->
                 let deserialiser =
-                    SynExpr.CreateLambda (
+                    JsonParseGenerator.parseNode
-                        [ SynPat.CreateConst SynConst.Unit ],
+                        None
-                        SynExpr.CreateParen (
+                        JsonParseGenerator.JsonParseOption.None
-                            JsonParseGenerator.parseNode
+                        contents
-                                None
+                        (SynExpr.createIdent "jsonNode")
-                                JsonParseGenerator.JsonParseOption.None
+                    |> SynExpr.paren
-                                contents
+                    |> SynExpr.createThunk
-                                (SynExpr.CreateIdentString "jsonNode")
+
-                        )
-                    )
                 // new RestEase.Response (content : string, response : HttpResponseMessage, deserialiser : unit -> 'T)
-                SynExpr.New (
+                SynExpr.createNew
-                    false,
+                    (SynType.app' (SynType.createLongIdent' [ "RestEase" ; "Response" ]) [ SynType.Anon range0 ])
-                    SynType.App (
+                    (SynExpr.tupleNoParen
-                        SynType.CreateLongIdent (SynLongIdent.Create [ "RestEase" ; "Response" ]),
-                        Some range0,
-                        [ SynType.Anon range0 ],
-                        [],
-                        Some range0,
-                        false,
-                        range0
-                    ),
-                    SynExpr.CreateParenedTuple
                         [
-                            SynExpr.CreateIdentString "responseString"
+                            SynExpr.createIdent "responseString"
-                            SynExpr.CreateIdentString "response"
+                            SynExpr.createIdent "response"
-                            SynExpr.CreateParen deserialiser
+                            deserialiser
-                        ],
+                        ])
-                    range0
-                )
             | retType ->
                 JsonParseGenerator.parseNode
                     None
                     JsonParseGenerator.JsonParseOption.None
                     retType
-                    (SynExpr.CreateIdentString "jsonNode")
+                    (SynExpr.createIdent "jsonNode")
 
         let handleBodyParams =
             match bodyParam with
@@ -524,20 +419,15 @@ module internal HttpClientGenerator =
                     [
                         Let (
                             "queryParams",
-                            SynExpr.New (
+                            SynExpr.createNew
-                                false,
+                                (SynType.createLongIdent'
-                                SynType.CreateLongIdent (
+                                    [ "System" ; "Net" ; "Http" ; (bodyParamType : BodyParamMethods).ToString () ])
-                                    SynLongIdent.Create
+                                (SynExpr.createIdent' bodyParamName)
-                                        [ "System" ; "Net" ; "Http" ; (bodyParamType : BodyParamMethods).ToString () ]
-                                ),
-                                SynExpr.CreateParen (SynExpr.CreateIdent bodyParamName),
-                                range0
-                            )
                         )
                         Do (
                             SynExpr.LongIdentSet (
-                                SynLongIdent.Create [ "httpMessage" ; "Content" ],
+                                SynLongIdent.createS' [ "httpMessage" ; "Content" ],
-                                SynExpr.CreateIdentString "queryParams",
+                                SynExpr.createIdent "queryParams",
                                 range0
                             )
                         )
@@ -546,8 +436,8 @@ module internal HttpClientGenerator =
                     [
                         Do (
                             SynExpr.LongIdentSet (
-                                SynLongIdent.Create [ "httpMessage" ; "Content" ],
+                                SynLongIdent.createS' [ "httpMessage" ; "Content" ],
-                                SynExpr.CreateIdent bodyParamName,
+                                SynExpr.createIdent' bodyParamName,
                                 range0
                             )
                         )
@@ -556,38 +446,27 @@ module internal HttpClientGenerator =
                     [
                         Let (
                             "queryParams",
-                            SynExpr.New (
+                            SynExpr.createNew
-                                false,
+                                (SynType.createLongIdent' [ "System" ; "Net" ; "Http" ; "StringContent" ])
-                                SynType.CreateLongIdent (
+                                (SynExpr.createIdent' bodyParamName
-                                    SynLongIdent.Create [ "System" ; "Net" ; "Http" ; "StringContent" ]
+                                 |> SynExpr.pipeThroughFunction (JsonSerializeGenerator.serializeNode ty)
-                                ),
+                                 |> SynExpr.pipeThroughFunction (
-                                SynExpr.CreateParen (
+                                     SynExpr.createLambda
-                                    SynExpr.CreateIdent bodyParamName
+                                         "node"
-                                    |> SynExpr.pipeThroughFunction (JsonSerializeGenerator.serializeNode ty)
+                                         (SynExpr.ifThenElse
-                                    |> SynExpr.pipeThroughFunction (
+                                             (SynExpr.applyFunction
-                                        SynExpr.createLambda
+                                                 (SynExpr.createIdent "isNull")
-                                            "node"
+                                                 (SynExpr.createIdent "node"))
-                                            (SynExpr.ifThenElse
+                                             (SynExpr.applyFunction
-                                                (SynExpr.CreateApp (
+                                                 (SynExpr.createLongIdent [ "node" ; "ToJsonString" ])
-                                                    SynExpr.CreateIdentString "isNull",
+                                                 (SynExpr.CreateConst ()))
-                                                    SynExpr.CreateIdentString "node"
+                                             (SynExpr.CreateConst "null"))
-                                                ))
+                                 ))
-                                                (SynExpr.CreateApp (
-                                                    SynExpr.CreateLongIdent (
-                                                        SynLongIdent.Create [ "node" ; "ToJsonString" ]
-                                                    ),
-                                                    SynExpr.CreateConst SynConst.Unit
-                                                ))
-                                                (SynExpr.CreateConst (SynConst.CreateString "null")))
-                                    )
-                                ),
-                                range0
-                            )
                         )
                         Do (
                             SynExpr.LongIdentSet (
-                                SynLongIdent.Create [ "httpMessage" ; "Content" ],
+                                SynLongIdent.createS' [ "httpMessage" ; "Content" ],
-                                SynExpr.CreateIdent (Ident.Create "queryParams"),
+                                SynExpr.createIdent "queryParams",
                                 range0
                             )
                         )
@@ -598,12 +477,9 @@ module internal HttpClientGenerator =
                 LetBang (
                     "responseString",
                     SynExpr.awaitTask (
-                        SynExpr.CreateApp (
+                        SynExpr.applyFunction
-                            SynExpr.CreateLongIdent (
+                            (SynExpr.createLongIdent [ "response" ; "Content" ; "ReadAsStringAsync" ])
-                                SynLongIdent.Create [ "response" ; "Content" ; "ReadAsStringAsync" ]
+                            (SynExpr.createIdent "ct")
-                            ),
-                            SynExpr.CreateIdentString "ct"
-                        )
                     )
                 )
 
@@ -611,12 +487,9 @@ module internal HttpClientGenerator =
                 LetBang (
                     "responseStream",
                     SynExpr.awaitTask (
-                        SynExpr.CreateApp (
+                        SynExpr.applyFunction
-                            SynExpr.CreateLongIdent (
+                            (SynExpr.createLongIdent [ "response" ; "Content" ; "ReadAsStreamAsync" ])
-                                SynLongIdent.Create [ "response" ; "Content" ; "ReadAsStreamAsync" ]
+                            (SynExpr.createIdent "ct")
-                            ),
-                            SynExpr.CreateIdentString "ct"
-                        )
                     )
                 )
 
@@ -624,67 +497,50 @@ module internal HttpClientGenerator =
                 LetBang (
                     "jsonNode",
                     SynExpr.awaitTask (
-                        SynExpr.CreateApp (
+                        SynExpr.applyFunction
-                            SynExpr.CreateLongIdent (
+                            (SynExpr.createLongIdent
-                                SynLongIdent.Create [ "System" ; "Text" ; "Json" ; "Nodes" ; "JsonNode" ; "ParseAsync" ]
+                                [ "System" ; "Text" ; "Json" ; "Nodes" ; "JsonNode" ; "ParseAsync" ])
-                            ),
+                            (SynExpr.tuple
-                            SynExpr.CreateParenedTuple
                                 [
-                                    SynExpr.CreateIdentString "responseStream"
+                                    SynExpr.createIdent "responseStream"
-                                    SynExpr.equals
+                                    SynExpr.equals (SynExpr.createIdent "cancellationToken") (SynExpr.createIdent "ct")
-                                        (SynExpr.CreateIdentString "cancellationToken")
+                                ])
-                                        (SynExpr.CreateIdentString "ct")
-                                ]
-                        )
                     )
                 )
 
             let setVariableHeaders =
                 variableHeaders
                 |> List.map (fun (headerName, callToGetValue) ->
-                    Do (
+                    [
-                        SynExpr.CreateApp (
+                        headerName
-                            SynExpr.CreateLongIdent (SynLongIdent.Create [ "httpMessage" ; "Headers" ; "Add" ]),
+                        SynExpr.applyFunction
-                            SynExpr.CreateParenedTuple
+                            (SynExpr.createLongIdent'
-                                [
+                                [ Ident.create "this" ; callToGetValue ; Ident.create "ToString" ])
-                                    headerName
+                            (SynExpr.CreateConst ())
-                                    SynExpr.CreateApp (
+                    ]
-                                        SynExpr.CreateLongIdent (
+                    |> SynExpr.tuple
-                                            SynLongIdent.CreateFromLongIdent
+                    |> SynExpr.applyFunction (SynExpr.createLongIdent [ "httpMessage" ; "Headers" ; "Add" ])
-                                                [ Ident.Create "this" ; callToGetValue ; Ident.Create "ToString" ]
+                    |> Do
-                                        ),
-                                        SynExpr.CreateConst SynConst.Unit
-                                    )
-                                ]
-                        )
-                    )
                 )
 
             let setConstantHeaders =
                 constantHeaders
                 |> List.map (fun (headerName, headerValue) ->
-                    Do (
+                    SynExpr.applyFunction
-                        SynExpr.CreateApp (
+                        (SynExpr.createLongIdent [ "httpMessage" ; "Headers" ; "Add" ])
-                            SynExpr.CreateLongIdent (SynLongIdent.Create [ "httpMessage" ; "Headers" ; "Add" ]),
+                        (SynExpr.tuple [ headerName ; headerValue ])
-                            SynExpr.CreateParenedTuple [ headerName ; headerValue ]
+                    |> Do
-                        )
-                    )
                 )
 
             [
-                yield LetBang ("ct", SynExpr.CreateLongIdent (SynLongIdent.Create [ "Async" ; "CancellationToken" ]))
+                yield LetBang ("ct", SynExpr.createLongIdent [ "Async" ; "CancellationToken" ])
                 yield Let ("uri", requestUri)
                 yield
                     Use (
                         "httpMessage",
-                        SynExpr.New (
+                        SynExpr.createNew
-                            false,
+                            (SynType.createLongIdent' [ "System" ; "Net" ; "Http" ; "HttpRequestMessage" ])
-                            SynType.CreateLongIdent (
+                            httpReqMessageConstructor
-                                SynLongIdent.Create [ "System" ; "Net" ; "Http" ; "HttpRequestMessage" ]
-                            ),
-                            httpReqMessageConstructor,
-                            range0
-                        )
                     )
 
                 yield! handleBodyParams
@@ -696,21 +552,18 @@ module internal HttpClientGenerator =
                     LetBang (
                         "response",
                         SynExpr.awaitTask (
-                            SynExpr.CreateApp (
+                            SynExpr.applyFunction
-                                SynExpr.CreateLongIdent (SynLongIdent.Create [ "client" ; "SendAsync" ]),
+                                (SynExpr.createLongIdent [ "client" ; "SendAsync" ])
-                                SynExpr.CreateParenedTuple
+                                (SynExpr.tuple [ SynExpr.createIdent "httpMessage" ; SynExpr.createIdent "ct" ])
-                                    [ SynExpr.CreateIdentString "httpMessage" ; SynExpr.CreateIdentString "ct" ]
-                            )
                         )
                     )
                 if info.EnsureSuccessHttpCode then
                     yield
                         Let (
                             "response",
-                            SynExpr.CreateApp (
+                            SynExpr.applyFunction
-                                SynExpr.CreateLongIdent (SynLongIdent.Create [ "response" ; "EnsureSuccessStatusCode" ]),
+                                (SynExpr.createLongIdent [ "response" ; "EnsureSuccessStatusCode" ])
-                                SynExpr.CreateConst SynConst.Unit
+                                (SynExpr.CreateConst ())
-                            )
                         )
                 match info.TaskReturnType with
                 | HttpResponseMessage -> ()
@@ -725,31 +578,22 @@ module internal HttpClientGenerator =
                     yield jsonNode
             ]
             |> SynExpr.createCompExpr "async" returnExpr
-            |> SynExpr.startAsTask (SynLongIdent.CreateFromLongIdent [ cancellationTokenArg ])
+            |> SynExpr.startAsTask cancellationTokenArg
 
-        SynMemberDefn.Member (
+        let thisIdent =
-            SynBinding.SynBinding (
+            if variableHeaders.IsEmpty then "_" else "this"
-                info.Accessibility,
+            |> Ident.create
-                SynBindingKind.Normal,
+
-                false,
+        let args = args |> List.map snd |> SynPat.tuple |> List.singleton
-                false,
+
-                [],
+        SynBinding.basic [ thisIdent ; info.Identifier ] args implementation
-                PreXmlDoc.Empty,
+        |> SynBinding.withAccessibility info.Accessibility
-                valData,
+        |> SynMemberDefn.memberImplementation
-                headPat,
-                None,
-                implementation,
-                range0,
-                DebugPointAtBinding.Yes range0,
-                SynExpr.synBindingTriviaZero true
-            ),
-            range0
-        )
 
     let getHttpAttributes (attrs : SynAttribute list) : HttpAttribute list =
         attrs
         |> List.choose (fun attr ->
-            match attr.TypeName.AsString with
+            match SynLongIdent.toString attr.TypeName with
             | "RestEase.Query"
             | "RestEase.QueryAttribute"
             | "WoofWare.Myriad.Plugins.RestEase.Query"
@@ -790,7 +634,7 @@ module internal HttpClientGenerator =
     let extractBasePath (attrs : SynAttribute list) : SynExpr option =
         attrs
         |> List.tryPick (fun attr ->
-            match attr.TypeName.AsString with
+            match SynLongIdent.toString attr.TypeName with
             | "BasePath"
             | "RestEase.BasePath"
             | "WoofWare.Myriad.Plugins.RestEase.BasePath"
@@ -803,7 +647,7 @@ module internal HttpClientGenerator =
     let extractBaseAddress (attrs : SynAttribute list) : SynExpr option =
         attrs
         |> List.tryPick (fun attr ->
-            match attr.TypeName.AsString with
+            match SynLongIdent.toString attr.TypeName with
             | "BaseAddress"
             | "RestEase.BaseAddress"
             | "WoofWare.Myriad.Plugins.RestEase.BaseAddress"
@@ -918,48 +762,13 @@ module internal HttpClientGenerator =
         let propertyMembers =
             properties
             |> List.map (fun (_, pi) ->
-                SynMemberDefn.Member (
+                SynExpr.createLongIdent' [ Ident.lowerFirstLetter pi.Identifier ]
-                    SynBinding.SynBinding (
+                |> SynExpr.applyTo (SynExpr.CreateConst ())
-                        pi.Accessibility,
+                |> SynBinding.basic [ Ident.create "_" ; pi.Identifier ] []
-                        SynBindingKind.Normal,
+                |> SynBinding.withReturnAnnotation pi.Type
-                        pi.IsInline,
+                |> SynBinding.setInline pi.IsInline
-                        false,
+                |> SynBinding.withAccessibility pi.Accessibility
-                        [],
+                |> SynMemberDefn.memberImplementation
-                        PreXmlDoc.Empty,
-                        SynValData.SynValData (
-                            Some
-                                {
-                                    IsInstance = true
-                                    IsDispatchSlot = false
-                                    IsOverrideOrExplicitImpl = true
-                                    IsFinal = false
-                                    GetterOrSetterIsCompilerGenerated = false
-                                    MemberKind = SynMemberKind.Member
-                                },
-                            SynValInfo.SynValInfo ([ [ SynArgInfo.Empty ] ; [] ], SynArgInfo.Empty),
-                            None
-                        ),
-                        SynPat.CreateLongIdent (
-                            SynLongIdent.CreateFromLongIdent [ Ident.Create "_" ; pi.Identifier ],
-                            []
-                        ),
-                        Some (SynBindingReturnInfo.Create pi.Type),
-                        SynExpr.CreateApp (
-                            SynExpr.CreateLongIdent (
-                                SynLongIdent.CreateFromLongIdent [ Ident.lowerFirstLetter pi.Identifier ]
-                            ),
-                            SynExpr.CreateConst SynConst.Unit
-                        ),
-                        range0,
-                        DebugPointAtBinding.Yes range0,
-                        {
-                            LeadingKeyword = SynLeadingKeyword.Member range0
-                            InlineKeyword = if pi.IsInline then Some range0 else None
-                            EqualsRange = Some range0
-                        }
-                    ),
-                    range0
-                )
             )
 
         let members = propertyMembers @ nonPropertyMembers
@@ -969,12 +778,12 @@ module internal HttpClientGenerator =
                  "Extension methods"
              else
                  "Module")
-            |> sprintf " %s for constructing a REST client."
+            |> sprintf "%s for constructing a REST client."
-            |> PreXmlDoc.Create
+            |> PreXmlDoc.create
 
         let interfaceImpl =
             SynExpr.ObjExpr (
-                SynType.LongIdent (SynLongIdent.CreateFromLongIdent interfaceType.Name),
+                SynType.createLongIdent interfaceType.Name,
                 None,
                 Some range0,
                 [],
@@ -987,160 +796,87 @@ module internal HttpClientGenerator =
         let headerArgs =
             properties
             |> List.map (fun (_, pi) ->
-                SynPat.CreateTyped (
+                SynPat.namedI (Ident.lowerFirstLetter pi.Identifier)
-                    SynPat.CreateNamed (Ident.lowerFirstLetter pi.Identifier),
+                |> SynPat.annotateType (SynType.funFromDomain (SynType.named "unit") pi.Type)
-                    SynType.CreateFun (SynType.CreateLongIdent "unit", pi.Type)
-                )
-                |> SynPat.CreateParen
             )
 
         let clientCreationArg =
-            SynPat.CreateTyped (
+            SynPat.named "client"
-                SynPat.CreateNamed (Ident.Create "client"),
+            |> SynPat.annotateType (SynType.createLongIdent' [ "System" ; "Net" ; "Http" ; "HttpClient" ])
-                SynType.CreateLongIdent (SynLongIdent.Create [ "System" ; "Net" ; "Http" ; "HttpClient" ])
-            )
-            |> SynPat.CreateParen
 
         let xmlDoc =
             if properties.IsEmpty then
-                " Create a REST client."
+                "Create a REST client."
             else
-                " Create a REST client. The input functions will be re-evaluated on every HTTP request to obtain the required values for the corresponding header properties."
+                "Create a REST client. The input functions will be re-evaluated on every HTTP request to obtain the required values for the corresponding header properties."
-            |> PreXmlDoc.Create
+            |> PreXmlDoc.create
 
-        let functionName = Ident.Create "client"
+        let functionName = Ident.create "client"
 
-        let valData =
+        let pattern = SynLongIdent.createS "make"
-            let memberFlags =
-                if spec.ExtensionMethods then
-                    {
-                        SynMemberFlags.IsInstance = false
-                        SynMemberFlags.IsDispatchSlot = false
-                        SynMemberFlags.IsOverrideOrExplicitImpl = false
-                        SynMemberFlags.IsFinal = false
-                        SynMemberFlags.GetterOrSetterIsCompilerGenerated = false
-                        SynMemberFlags.MemberKind = SynMemberKind.Member
-                    }
-                    |> Some
-                else
-                    None
 
-            SynValData.SynValData (
+        let returnInfo = SynType.createLongIdent interfaceType.Name
-                memberFlags,
-                SynValInfo.SynValInfo ([ [ SynArgInfo.SynArgInfo ([], false, Some functionName) ] ], SynArgInfo.Empty),
-                None
-            )
-
-        let pattern =
-            SynPat.CreateLongIdent (SynLongIdent.CreateString "make", headerArgs @ [ clientCreationArg ])
-
-        let returnInfo =
-            SynBindingReturnInfo.Create (SynType.LongIdent (SynLongIdent.CreateFromLongIdent interfaceType.Name))
 
         let nameWithoutLeadingI =
             List.last interfaceType.Name
             |> _.idText
             |> fun s ->
                 if s.StartsWith 'I' then
-                    s.[1..]
+                    s.Substring 1
                 else
                     failwith $"Expected interface type to start with 'I', but was: %s{s}"
 
         let createFunc =
             if spec.ExtensionMethods then
                 let binding =
-                    SynBinding.SynBinding (
+                    SynBinding.basic [ Ident.create "make" ] (headerArgs @ [ clientCreationArg ]) interfaceImpl
-                        None,
+                    |> SynBinding.withXmlDoc xmlDoc
-                        SynBindingKind.Normal,
+                    |> SynBinding.withReturnAnnotation returnInfo
-                        false,
+                    |> SynMemberDefn.staticMember
-                        false,
-                        [],
-                        xmlDoc,
-                        valData,
-                        pattern,
-                        Some returnInfo,
-                        interfaceImpl,
-                        range0,
-                        DebugPointAtBinding.NoneAtInvisible,
-                        {
-                            LeadingKeyword = SynLeadingKeyword.StaticMember (range0, range0)
-                            InlineKeyword = None
-                            EqualsRange = Some range0
-                        }
-                    )
 
-                let mem = SynMemberDefn.Member (binding, range0)
+                let componentInfo =
+                    SynComponentInfo.create (Ident.create nameWithoutLeadingI)
+                    |> SynComponentInfo.withDocString (PreXmlDoc.create "Extension methods for HTTP clients")
 
                 let containingType =
-                    SynTypeDefn.SynTypeDefn (
+                    SynTypeDefnRepr.augmentation ()
-                        SynComponentInfo.Create (
+                    |> SynTypeDefn.create componentInfo
-                            [ Ident.Create nameWithoutLeadingI ],
+                    |> SynTypeDefn.withMemberDefns [ binding ]
-                            xmldoc = PreXmlDoc.Create " Extension methods for HTTP clients"
-                        ),
-                        SynTypeDefnRepr.ObjectModel (SynTypeDefnKind.Augmentation range0, [], range0),
-                        [ mem ],
-                        None,
-                        range0,
-                        {
-                            LeadingKeyword = SynTypeDefnLeadingKeyword.Type range0
-                            EqualsRange = None
-                            WithKeyword = None
-                        }
-                    )
 
                 SynModuleDecl.Types ([ containingType ], range0)
 
             else
-                SynBinding.SynBinding (
+                SynBinding.basic [ Ident.create "make" ] (headerArgs @ [ clientCreationArg ]) interfaceImpl
-                    None,
+                |> SynBinding.withXmlDoc xmlDoc
-                    SynBindingKind.Normal,
+                |> SynBinding.withReturnAnnotation returnInfo
-                    false,
+                |> SynModuleDecl.createLet
-                    false,
-                    [],
-                    xmlDoc,
-                    valData,
-                    pattern,
-                    Some returnInfo,
-                    interfaceImpl,
-                    range0,
-                    DebugPointAtBinding.NoneAtLet,
-                    SynExpr.synBindingTriviaZero false
-                )
-                |> List.singleton
-                |> SynModuleDecl.CreateLet
 
-        let moduleName : LongIdent =
+        let moduleName =
             if spec.ExtensionMethods then
-                [ Ident.Create (nameWithoutLeadingI + "HttpClientExtension") ]
+                Ident.create (nameWithoutLeadingI + "HttpClientExtension")
             else
-                [ Ident.Create nameWithoutLeadingI ]
+                Ident.create nameWithoutLeadingI
 
         let attribs =
             if spec.ExtensionMethods then
-                [ SynAttributeList.Create SynAttribute.autoOpen ]
+                [ SynAttribute.autoOpen ]
             else
-                [
+                [ SynAttribute.compilationRepresentation ; SynAttribute.requireQualifiedAccess ]
-                    SynAttributeList.Create SynAttribute.compilationRepresentation
-                    SynAttributeList.Create (SynAttribute.RequireQualifiedAccess ())
-                ]
 
         let modInfo =
-            SynComponentInfo.Create (
+            SynComponentInfo.create moduleName
-                moduleName,
+            |> SynComponentInfo.withDocString docString
-                attributes = attribs,
+            |> SynComponentInfo.addAttributes attribs
-                xmldoc = docString,
+            |> SynComponentInfo.setAccessibility interfaceType.Accessibility
-                access = interfaceType.Accessibility
-            )
 
-        SynModuleOrNamespace.CreateNamespace (
+        [
-            ns,
+            for openStatement in opens do
-            decls =
+                yield SynModuleDecl.openAny openStatement
-                [
+            yield SynModuleDecl.nestedModule modInfo [ createFunc ]
-                    for openStatement in opens do
+        ]
-                        yield SynModuleDecl.CreateOpen openStatement
+        |> SynModuleOrNamespace.createNamespace ns
-                    yield SynModuleDecl.CreateNestedModule (modInfo, [ createFunc ])
+
-                ]
+open Myriad.Core
-        )
 
 /// Myriad generator that provides an HTTP client for an interface type using RestEase annotations.
 [<MyriadGenerator("http-client")>]

WoofWare.Myriad.Plugins/InterfaceMockGenerator.fs

@@ -2,9 +2,7 @@ namespace WoofWare.Myriad.Plugins
 
 open System
 open Fantomas.FCS.Syntax
-open Fantomas.FCS.SyntaxTrivia
 open Fantomas.FCS.Xml
-open Myriad.Core
 
 type internal GenerateMockOutputSpec =
     {
@@ -14,7 +12,6 @@ type internal GenerateMockOutputSpec =
 [<RequireQualifiedAccess>]
 module internal InterfaceMockGenerator =
     open Fantomas.FCS.Text.Range
-    open Myriad.Core.Ast
 
     let private getName (SynField (_, _, id, _, _, _, _, _, _)) =
         match id with
@@ -46,116 +43,67 @@ module internal InterfaceMockGenerator =
             )
             |> Set.ofSeq
 
-        let synValData =
+        let failwithFun (SynField (_, _, idOpt, _, _, _, _, _, _)) =
-            {
+            let failString =
-                SynMemberFlags.IsInstance = false
+                match idOpt with
-                SynMemberFlags.IsDispatchSlot = false
+                | None -> SynExpr.CreateConst "Unimplemented mock function"
-                SynMemberFlags.IsOverrideOrExplicitImpl = false
+                | Some ident -> SynExpr.CreateConst $"Unimplemented mock function: %s{ident.idText}"
-                SynMemberFlags.IsFinal = false
-                SynMemberFlags.GetterOrSetterIsCompilerGenerated = false
-                SynMemberFlags.MemberKind = SynMemberKind.Member
-            }
 
-        let failwithFun =
+            SynExpr.createLongIdent [ "System" ; "NotImplementedException" ]
-            SynExpr.createLambda
+            |> SynExpr.applyTo failString
-                "x"
+            |> SynExpr.paren
-                (SynExpr.CreateApp (
+            |> SynExpr.applyFunction (SynExpr.createIdent "raise")
-                    SynExpr.CreateIdentString "raise",
+            |> SynExpr.createLambda "_"
-                    SynExpr.CreateParen (
-                        SynExpr.CreateApp (
-                            SynExpr.CreateLongIdent (SynLongIdent.Create [ "System" ; "NotImplementedException" ]),
-                            SynExpr.CreateConstString "Unimplemented mock function"
-                        )
-                    )
-                ))
-
-        let constructorIdent =
-            let generics =
-                interfaceType.Generics
-                |> Option.map (fun generics -> SynValTyparDecls (Some generics, false))
-
-            SynPat.LongIdent (
-                SynLongIdent.CreateString "Empty",
-                None,
-                None, // no generics on the "Empty", only on the return type
-                SynArgPats.Pats (
-                    if generics.IsNone then
-                        []
-                    else
-                        [ SynPat.CreateParen (SynPat.CreateConst SynConst.Unit) ]
-                ),
-                None,
-                range0
-            )
 
         let constructorReturnType =
             match interfaceType.Generics with
-            | None -> SynType.CreateLongIdent name
+            | None -> SynType.createLongIdent' [ name ]
             | Some generics ->
-                let generics =
-                    generics.TyparDecls
-                    |> List.map (fun (SynTyparDecl (_, typar)) -> SynType.Var (typar, range0))
 
-                SynType.App (
+            let generics =
-                    SynType.CreateLongIdent name,
+                generics.TyparDecls
-                    Some range0,
+                |> List.map (fun (SynTyparDecl (_, typar)) -> SynType.var typar)
-                    generics,
+
-                    List.replicate (generics.Length - 1) range0,
+            SynType.app name generics
-                    Some range0,
-                    false,
-                    range0
-                )
-            |> SynBindingReturnInfo.Create
 
         let constructorFields =
             let extras =
                 if inherits.Contains KnownInheritance.IDisposable then
-                    let unitFun = SynExpr.createLambda "_" SynExpr.CreateUnit
+                    let unitFun = SynExpr.createThunk (SynExpr.CreateConst ())
 
-                    [
+                    [ (SynLongIdent.createS "Dispose", true), Some unitFun ]
-                        (SynLongIdent.CreateFromLongIdent [ Ident.Create "Dispose" ], true), Some unitFun
-                    ]
                 else
                     []
 
             let nonExtras =
                 fields
-                |> List.map (fun field -> (SynLongIdent.CreateFromLongIdent [ getName field ], true), Some failwithFun)
+                |> List.map (fun field -> (SynLongIdent.createI (getName field), true), Some (failwithFun field))
 
             extras @ nonExtras
 
         let constructor =
-            SynMemberDefn.Member (
+            SynBinding.basic
-                SynBinding.SynBinding (
+                [ Ident.create "Empty" ]
-                    None,
+                (if interfaceType.Generics.IsNone then
-                    SynBindingKind.Normal,
+                     []
-                    false,
+                 else
-                    false,
+                     [ SynPat.unit ])
-                    [],
+                (AstHelper.instantiateRecord constructorFields)
-                    PreXmlDoc.Create " An implementation where every method throws.",
+            |> SynBinding.withXmlDoc (PreXmlDoc.create "An implementation where every method throws.")
-                    SynValData.SynValData (Some synValData, SynValInfo.Empty, None),
+            |> SynBinding.withReturnAnnotation constructorReturnType
-                    constructorIdent,
+            |> SynMemberDefn.staticMember
-                    Some constructorReturnType,
-                    AstHelper.instantiateRecord constructorFields,
-                    range0,
-                    DebugPointAtBinding.Yes range0,
-                    { SynExpr.synBindingTriviaZero true with
-                        LeadingKeyword = SynLeadingKeyword.StaticMember (range0, range0)
-                    }
-                ),
-                range0
-            )
 
         let fields =
             let extras =
                 if inherits.Contains KnownInheritance.IDisposable then
-                    [
+                    {
-                        SynField.Create (
+                        Attrs = []
-                            SynType.CreateFun (SynType.CreateUnit, SynType.CreateUnit),
+                        Ident = Some (Ident.create "Dispose")
-                            Ident.Create "Dispose",
+                        Type = SynType.funFromDomain SynType.unit SynType.unit
-                            xmldoc = PreXmlDoc.Create " Implementation of IDisposable.Dispose"
+                    }
-                        )
+                    |> SynField.make
-                    ]
+                    |> SynField.withDocString (PreXmlDoc.create "Implementation of IDisposable.Dispose")
+                    |> List.singleton
                 else
                     []
 
@@ -165,47 +113,6 @@ module internal InterfaceMockGenerator =
             let members =
                 interfaceType.Members
                 |> List.map (fun memberInfo ->
-
-                    let synValData =
-                        SynValData.SynValData (
-                            Some
-                                {
-                                    IsInstance = true
-                                    IsDispatchSlot = false
-                                    IsOverrideOrExplicitImpl = true
-                                    IsFinal = false
-                                    GetterOrSetterIsCompilerGenerated = false
-                                    MemberKind = SynMemberKind.Member
-                                },
-                            valInfo =
-                                SynValInfo.SynValInfo (
-                                    curriedArgInfos =
-                                        [
-                                            yield
-                                                [
-                                                    SynArgInfo.SynArgInfo (
-                                                        attributes = [],
-                                                        optional = false,
-                                                        ident = None
-                                                    )
-                                                ]
-                                            yield!
-                                                memberInfo.Args
-                                                |> List.mapi (fun i arg ->
-                                                    arg.Args
-                                                    |> List.mapi (fun j arg ->
-                                                        match arg.Type with
-                                                        | UnitType -> SynArgInfo.SynArgInfo ([], false, None)
-                                                        | _ -> SynArgInfo.CreateIdString $"arg_%i{i}_%i{j}"
-                                                    )
-                                                )
-                                        ],
-                                    returnInfo =
-                                        SynArgInfo.SynArgInfo (attributes = [], optional = false, ident = None)
-                                ),
-                            thisIdOpt = None
-                        )
-
                     let headArgs =
                         memberInfo.Args
                         |> List.mapi (fun i tupledArgs ->
@@ -213,27 +120,15 @@ module internal InterfaceMockGenerator =
                                 tupledArgs.Args
                                 |> List.mapi (fun j ty ->
                                     match ty.Type with
-                                    | UnitType -> SynPat.Const (SynConst.Unit, range0)
+                                    | UnitType -> SynPat.unit
-                                    | _ -> SynPat.CreateNamed (Ident.Create $"arg_%i{i}_%i{j}")
+                                    | _ -> SynPat.named $"arg_%i{i}_%i{j}"
                                 )
 
                             match args with
                             | [] -> failwith "somehow got no args at all"
                             | [ arg ] -> arg
-                            | args ->
+                            | args -> SynPat.tuple args
-                                SynPat.Tuple (false, args, List.replicate (args.Length - 1) range0, range0)
+                            |> fun i -> if tupledArgs.HasParen then SynPat.paren i else i
-                                |> SynPat.CreateParen
-                            |> fun i -> if tupledArgs.HasParen then SynPat.Paren (i, range0) else i
-                        )
-
-                    let headPat =
-                        SynPat.LongIdent (
-                            SynLongIdent.CreateFromLongIdent [ Ident.Create "this" ; memberInfo.Identifier ],
-                            None,
-                            None,
-                            SynArgPats.Pats headArgs,
-                            None,
-                            range0
                         )
 
                     let body =
@@ -243,10 +138,10 @@ module internal InterfaceMockGenerator =
                                 args.Args
                                 |> List.mapi (fun j arg ->
                                     match arg.Type with
-                                    | UnitType -> SynExpr.CreateConst SynConst.Unit
+                                    | UnitType -> SynExpr.CreateConst ()
-                                    | _ -> SynExpr.CreateIdentString $"arg_%i{i}_%i{j}"
+                                    | _ -> SynExpr.createIdent $"arg_%i{i}_%i{j}"
                                 )
-                                |> SynExpr.CreateParenedTuple
+                                |> SynExpr.tuple
                             )
 
                         match tuples |> List.rev with
@@ -254,42 +149,17 @@ module internal InterfaceMockGenerator =
                         | last :: rest ->
 
                         (last, rest)
-                        ||> List.fold (fun trail next -> SynExpr.CreateApp (next, trail))
+                        ||> List.fold SynExpr.applyTo
-                        |> fun args ->
+                        |> SynExpr.applyFunction (
-                            SynExpr.CreateApp (
+                            SynExpr.createLongIdent' [ Ident.create "this" ; memberInfo.Identifier ]
-                                SynExpr.CreateLongIdent (
+                        )
-                                    SynLongIdent.CreateFromLongIdent [ Ident.Create "this" ; memberInfo.Identifier ]
-                                ),
-                                args
-                            )
 
-                    SynMemberDefn.Member (
+                    SynBinding.basic [ Ident.create "this" ; memberInfo.Identifier ] headArgs body
-                        SynBinding.SynBinding (
+                    |> SynMemberDefn.memberImplementation
-                            None,
-                            SynBindingKind.Normal,
-                            false,
-                            false,
-                            [],
-                            PreXmlDoc.Empty,
-                            synValData,
-                            headPat,
-                            None,
-                            body,
-                            range0,
-                            DebugPointAtBinding.Yes range0,
-                            {
-                                LeadingKeyword = SynLeadingKeyword.Member range0
-                                InlineKeyword = None
-                                EqualsRange = Some range0
-                            }
-                        ),
-                        range0
-                    )
                 )
 
             let interfaceName =
-                let baseName =
+                let baseName = SynType.createLongIdent interfaceType.Name
-                    SynType.CreateLongIdent (SynLongIdent.CreateFromLongIdent interfaceType.Name)
 
                 match interfaceType.Generics with
                 | None -> baseName
@@ -299,17 +169,9 @@ module internal InterfaceMockGenerator =
                         | SynTyparDecls.PostfixList (decls, _, _) -> decls
                         | SynTyparDecls.PrefixList (decls, _) -> decls
                         | SynTyparDecls.SinglePrefix (decl, _) -> [ decl ]
-                        |> List.map (fun (SynTyparDecl (_, typar)) -> SynType.Var (typar, range0))
+                        |> List.map (fun (SynTyparDecl (_, typar)) -> SynType.var typar)
 
-                    SynType.App (
+                    SynType.app' baseName generics
-                        baseName,
-                        Some range0,
-                        generics,
-                        List.replicate (generics.Length - 1) range0,
-                        Some range0,
-                        false,
-                        range0
-                    )
 
             SynMemberDefn.Interface (interfaceName, Some range0, Some members, range0)
 
@@ -327,83 +189,15 @@ module internal InterfaceMockGenerator =
             |> Seq.map (fun inheritance ->
                 match inheritance with
                 | KnownInheritance.IDisposable ->
-                    let valData =
+                    let mem =
-                        SynValData.SynValData (
+                        SynExpr.createLongIdent [ "this" ; "Dispose" ]
-                            Some
+                        |> SynExpr.applyTo (SynExpr.CreateConst ())
-                                {
+                        |> SynBinding.basic [ Ident.create "this" ; Ident.create "Dispose" ] [ SynPat.unit ]
-                                    IsInstance = true
+                        |> SynBinding.withReturnAnnotation SynType.unit
-                                    IsDispatchSlot = false
+                        |> SynMemberDefn.memberImplementation
-                                    IsOverrideOrExplicitImpl = true
-                                    IsFinal = false
-                                    GetterOrSetterIsCompilerGenerated = false
-                                    MemberKind = SynMemberKind.Member
-                                },
-                            valInfo =
-                                SynValInfo.SynValInfo (
-                                    curriedArgInfos =
-                                        [
-                                            yield
-                                                [
-                                                    SynArgInfo.SynArgInfo (
-                                                        attributes = [],
-                                                        optional = false,
-                                                        ident = None
-                                                    )
-                                                ]
-                                        ],
-                                    returnInfo =
-                                        SynArgInfo.SynArgInfo (attributes = [], optional = false, ident = None)
-                                ),
-                            thisIdOpt = None
-                        )
-
-                    let headArgs = [ SynPat.Const (SynConst.Unit, range0) ]
-
-                    let headPat =
-                        SynPat.LongIdent (
-                            SynLongIdent.CreateFromLongIdent [ Ident.Create "this" ; Ident.Create "Dispose" ],
-                            None,
-                            None,
-                            SynArgPats.Pats headArgs,
-                            None,
-                            range0
-                        )
-
-                    let binding =
-                        SynBinding.SynBinding (
-                            None,
-                            SynBindingKind.Normal,
-                            false,
-                            false,
-                            [],
-                            PreXmlDoc.Empty,
-                            valData,
-                            headPat,
-                            Some (
-                                SynBindingReturnInfo.SynBindingReturnInfo (
-                                    SynType.Unit (),
-                                    range0,
-                                    [],
-                                    SynBindingReturnInfoTrivia.Zero
-                                )
-                            ),
-                            SynExpr.CreateApp (
-                                SynExpr.CreateLongIdent (SynLongIdent.Create [ "this" ; "Dispose" ]),
-                                SynExpr.CreateUnit
-                            ),
-                            range0,
-                            DebugPointAtBinding.Yes range0,
-                            {
-                                LeadingKeyword = SynLeadingKeyword.Member range0
-                                InlineKeyword = None
-                                EqualsRange = Some range0
-                            }
-                        )
-
-                    let mem = SynMemberDefn.Member (binding, range0)
 
                     SynMemberDefn.Interface (
-                        SynType.CreateLongIdent (SynLongIdent.Create [ "System" ; "IDisposable" ]),
+                        SynType.createLongIdent' [ "System" ; "IDisposable" ],
                         Some range0,
                         Some [ mem ],
                         range0
@@ -413,7 +207,7 @@ module internal InterfaceMockGenerator =
 
         let record =
             {
-                Name = Ident.Create name
+                Name = Ident.create name
                 Fields = fields
                 Members = Some ([ constructor ; interfaceMembers ] @ extraInterfaces)
                 XmlDoc = Some xmlDoc
@@ -427,7 +221,7 @@ module internal InterfaceMockGenerator =
 
     let private buildType (x : ParameterInfo) : SynType =
         if x.IsOptional then
-            SynType.App (SynType.CreateLongIdent "option", Some range0, [ x.Type ], [], Some range0, false, range0)
+            SynType.app "option" [ x.Type ]
         else
             x.Type
 
@@ -444,19 +238,15 @@ module internal InterfaceMockGenerator =
     let constructMember (mem : MemberInfo) : SynField =
         let inputType = mem.Args |> List.map constructMemberSinglePlace
 
-        let funcType = AstHelper.toFun inputType mem.ReturnType
+        let funcType = SynType.toFun inputType mem.ReturnType
 
-        SynField.SynField (
+        {
-            [],
+            Type = funcType
-            false,
+            Attrs = []
-            Some mem.Identifier,
+            Ident = Some mem.Identifier
-            funcType,
+        }
-            false,
+        |> SynField.make
-            mem.XmlDoc |> Option.defaultValue PreXmlDoc.Empty,
+        |> SynField.withDocString (mem.XmlDoc |> Option.defaultValue PreXmlDoc.Empty)
-            None,
-            range0,
-            SynFieldTrivia.Zero
-        )
 
     let createRecord
         (namespaceId : LongIdent)
@@ -466,24 +256,24 @@ module internal InterfaceMockGenerator =
         =
         let interfaceType = AstHelper.parseInterface interfaceType
         let fields = interfaceType.Members |> List.map constructMember
-        let docString = PreXmlDoc.Create " Mock record type for an interface"
+        let docString = PreXmlDoc.create "Mock record type for an interface"
 
         let name =
             List.last interfaceType.Name
             |> _.idText
             |> fun s ->
                 if s.StartsWith 'I' && s.Length > 1 && Char.IsUpper s.[1] then
-                    s.[1..]
+                    s.Substring 1
                 else
                     s
             |> fun s -> s + "Mock"
 
         let typeDecl = createType spec name interfaceType docString fields
 
-        SynModuleOrNamespace.CreateNamespace (
+        [ yield! opens |> List.map SynModuleDecl.openAny ; yield typeDecl ]
-            namespaceId,
+        |> SynModuleOrNamespace.createNamespace namespaceId
-            decls = (opens |> List.map SynModuleDecl.CreateOpen) @ [ typeDecl ]
+
-        )
+open Myriad.Core
 
 /// Myriad generator that creates a record which implements the given interface,
 /// but with every field mocked out.

WoofWare.Myriad.Plugins/JsonParseGenerator.fs

@@ -4,8 +4,6 @@ open System
 open System.Text
 open Fantomas.FCS.Syntax
 open Fantomas.FCS.SyntaxTrivia
-open Fantomas.FCS.Xml
-open Myriad.Core
 
 type internal JsonParseOutputSpec =
     {
@@ -15,7 +13,6 @@ type internal JsonParseOutputSpec =
 [<RequireQualifiedAccess>]
 module internal JsonParseGenerator =
     open Fantomas.FCS.Text.Range
-    open Myriad.Core.Ast
 
     type JsonParseOption =
         {
@@ -30,34 +27,23 @@ module internal JsonParseGenerator =
     /// (match {indexed} with | null -> raise (System.Collections.Generic.KeyNotFoundException ()) | v -> v)
     let assertNotNull (propertyName : SynExpr) (indexed : SynExpr) =
         let raiseExpr =
-            SynExpr.CreateApp (
+            SynExpr.applyFunction
-                SynExpr.CreateIdentString "raise",
+                (SynExpr.createIdent "sprintf")
-                SynExpr.CreateParen (
+                (SynExpr.CreateConst "Required key '%s' not found on JSON object")
-                    SynExpr.CreateApp (
+            |> SynExpr.applyTo (SynExpr.paren propertyName)
-                        SynExpr.CreateLongIdent (
+            |> SynExpr.paren
-                            SynLongIdent.Create [ "System" ; "Collections" ; "Generic" ; "KeyNotFoundException" ]
+            |> SynExpr.applyFunction (
-                        ),
+                SynExpr.createLongIdent [ "System" ; "Collections" ; "Generic" ; "KeyNotFoundException" ]
-                        SynExpr.CreateParen (
-                            SynExpr.CreateApp (
-                                SynExpr.CreateApp (
-                                    SynExpr.CreateIdentString "sprintf",
-                                    SynExpr.CreateConstString "Required key '%s' not found on JSON object"
-                                ),
-                                SynExpr.CreateParen propertyName
-                            )
-                        )
-                    )
-                )
             )
+            |> SynExpr.paren
+            |> SynExpr.applyFunction (SynExpr.createIdent "raise")
 
-        SynExpr.CreateMatch (
+        [
-            indexed,
+            SynMatchClause.create SynPat.createNull raiseExpr
-            [
+            SynMatchClause.create (SynPat.named "v") (SynExpr.createIdent "v")
-                SynMatchClause.Create (SynPat.CreateNull, None, raiseExpr)
+        ]
-                SynMatchClause.Create (SynPat.CreateNamed (Ident.Create "v"), None, SynExpr.CreateIdentString "v")
+        |> SynExpr.createMatch indexed
-            ]
+        |> SynExpr.paren
-        )
-        |> SynExpr.CreateParen
 
     /// {node}.AsValue().GetValue<{typeName}> ()
     /// If `propertyName` is Some, uses `assertNotNull {node}` instead of `{node}`.
@@ -85,10 +71,8 @@ module internal JsonParseGenerator =
 
     /// {type}.jsonParse {node}
     let typeJsonParse (typeName : LongIdent) (node : SynExpr) : SynExpr =
-        SynExpr.CreateApp (
+        node
-            SynExpr.CreateLongIdent (SynLongIdent.CreateFromLongIdent (typeName @ [ Ident.Create "jsonParse" ])),
+        |> SynExpr.applyFunction (SynExpr.createLongIdent' (typeName @ [ Ident.create "jsonParse" ]))
-            node
-        )
 
     /// collectionType is e.g. "List"; we'll be calling `ofSeq` on it.
     /// body is the body of a lambda which takes a parameter `elt`.
@@ -107,69 +91,41 @@ module internal JsonParseGenerator =
         | Some propertyName -> assertNotNull propertyName node
         |> SynExpr.callMethod "AsArray"
         |> SynExpr.pipeThroughFunction (
-            SynExpr.CreateApp (
+            SynExpr.applyFunction (SynExpr.createLongIdent [ "Seq" ; "map" ]) (SynExpr.createLambda "elt" body)
-                SynExpr.CreateLongIdent (SynLongIdent.Create [ "Seq" ; "map" ]),
-                SynExpr.createLambda "elt" body
-            )
         )
-        |> SynExpr.pipeThroughFunction (SynExpr.CreateLongIdent (SynLongIdent.Create [ collectionType ; "ofSeq" ]))
+        |> SynExpr.pipeThroughFunction (SynExpr.createLongIdent [ collectionType ; "ofSeq" ])
 
     /// match {node} with | null -> None | v -> {body} |> Some
     /// Use the variable `v` to get access to the `Some`.
     let createParseLineOption (node : SynExpr) (body : SynExpr) : SynExpr =
-        let body = SynExpr.pipeThroughFunction (SynExpr.CreateIdentString "Some") body
+        let body = SynExpr.pipeThroughFunction (SynExpr.createIdent "Some") body
 
-        SynExpr.CreateMatch (
+        [
-            node,
+            SynMatchClause.create SynPat.createNull (SynExpr.createIdent "None")
-            [
+            SynMatchClause.create (SynPat.named "v") body
-                SynMatchClause.Create (SynPat.CreateNull, None, SynExpr.CreateIdent (Ident.Create "None"))
+        ]
-                SynMatchClause.Create (SynPat.CreateNamed (Ident.Create "v"), None, body)
+        |> SynExpr.createMatch node
-            ]
-        )
 
     /// Given e.g. "float", returns "System.Double.Parse"
     let parseFunction (typeName : string) : LongIdent =
         let qualified =
-            match AstHelper.qualifyPrimitiveType typeName with
+            match Primitives.qualifyType typeName with
             | Some x -> x
             | None -> failwith $"Could not recognise type %s{typeName} as a primitive."
 
-        List.append qualified [ Ident.Create "Parse" ]
+        List.append qualified [ Ident.create "Parse" ]
 
     /// fun kvp -> let key = {key(kvp)} in let value = {value(kvp)} in (key, value))
     /// The inputs will be fed with appropriate SynExprs to apply them to the `kvp.Key` and `kvp.Value` args.
     let dictionaryMapper (key : SynExpr -> SynExpr) (value : SynExpr -> SynExpr) : SynExpr =
-        let keyArg =
+        let keyArg = SynExpr.createLongIdent [ "kvp" ; "Key" ] |> SynExpr.paren
-            SynExpr.CreateLongIdent (SynLongIdent.Create [ "kvp" ; "Key" ])
-            |> SynExpr.CreateParen
 
-        let valueArg =
+        let valueArg = SynExpr.createLongIdent [ "kvp" ; "Value" ] |> SynExpr.paren
-            SynExpr.CreateLongIdent (SynLongIdent.Create [ "kvp" ; "Value" ])
-            |> SynExpr.CreateParen
 
-        SynExpr.LetOrUse (
+        // No need to paren here, we're on the LHS of a `let`
-            false,
+        SynExpr.tupleNoParen [ SynExpr.createIdent "key" ; SynExpr.createIdent "value" ]
-            false,
+        |> SynExpr.createLet [ SynBinding.basic [ Ident.create "value" ] [] (value valueArg) ]
-            [
+        |> SynExpr.createLet [ SynBinding.basic [ Ident.create "key" ] [] (key keyArg) ]
-                SynBinding.Let (pattern = SynPat.CreateNamed (Ident.Create "key"), expr = key keyArg)
-            ],
-            SynExpr.LetOrUse (
-                false,
-                false,
-                [
-                    SynBinding.Let (pattern = SynPat.CreateNamed (Ident.Create "value"), expr = value valueArg)
-                ],
-                SynExpr.CreateTuple [ SynExpr.CreateIdentString "key" ; SynExpr.CreateIdentString "value" ],
-                range0,
-                {
-                    InKeyword = None
-                }
-            ),
-            range0,
-            {
-                InKeyword = None
-            }
-        )
         |> SynExpr.createLambda "kvp"
 
     /// A conforming JSON object has only strings as keys. But it would be reasonable to allow the user
@@ -179,11 +135,52 @@ module internal JsonParseGenerator =
         | String -> key
         | Uri ->
             key
-            |> SynExpr.pipeThroughFunction (SynExpr.CreateLongIdent (SynLongIdent.Create [ "System" ; "Uri" ]))
+            |> SynExpr.pipeThroughFunction (SynExpr.createLongIdent [ "System" ; "Uri" ])
         | _ ->
             failwithf
                 $"Unable to parse the key type %+A{desiredType} of a JSON object. Keys are strings, and this plugin does not know how to convert to that from a string."
 
+    let private parseNumberType
+        (options : JsonParseOption)
+        (propertyName : SynExpr option)
+        (node : SynExpr)
+        (typeName : string)
+        =
+        let basic = asValueGetValue propertyName typeName node
+
+        match options.JsonNumberHandlingArg with
+        | None -> basic
+        | Some option ->
+            let cond =
+                SynExpr.DotGet (SynExpr.createIdent "exc", range0, SynLongIdent.createS "Message", range0)
+                |> SynExpr.callMethodArg "Contains" (SynExpr.CreateConst "cannot be converted to")
+
+            let handler =
+                asValueGetValue propertyName "string" node
+                |> SynExpr.pipeThroughFunction (SynExpr.createLongIdent' (parseFunction typeName))
+                |> SynExpr.ifThenElse
+                    (SynExpr.equals
+                        option
+                        (SynExpr.createLongIdent
+                            [
+                                "System"
+                                "Text"
+                                "Json"
+                                "Serialization"
+                                "JsonNumberHandling"
+                                "AllowReadingFromString"
+                            ]))
+                    SynExpr.reraise
+                |> SynExpr.ifThenElse cond SynExpr.reraise
+
+            basic
+            |> SynExpr.pipeThroughTryWith
+                (SynPat.IsInst (
+                    SynType.LongIdent (SynLongIdent.createS' [ "System" ; "InvalidOperationException" ]),
+                    range0
+                ))
+                handler
+
     /// Given `node.["town"]`, for example, choose how to obtain a JSON value from it.
     /// The property name is used in error messages at runtime to show where a JSON
     /// parse error occurred; supply `None` to indicate "don't validate".
@@ -199,136 +196,86 @@ module internal JsonParseGenerator =
         | DateOnly ->
             node
             |> asValueGetValue propertyName "string"
-            |> SynExpr.pipeThroughFunction (
+            |> SynExpr.pipeThroughFunction (SynExpr.createLongIdent [ "System" ; "DateOnly" ; "Parse" ])
-                SynExpr.CreateLongIdent (SynLongIdent.Create [ "System" ; "DateOnly" ; "Parse" ])
-            )
         | Uri ->
             node
             |> asValueGetValue propertyName "string"
-            |> SynExpr.pipeThroughFunction (SynExpr.CreateLongIdent (SynLongIdent.Create [ "System" ; "Uri" ]))
+            |> SynExpr.pipeThroughFunction (SynExpr.createLongIdent [ "System" ; "Uri" ])
         | Guid ->
             node
             |> asValueGetValue propertyName "string"
-            |> SynExpr.pipeThroughFunction (
+            |> SynExpr.pipeThroughFunction (SynExpr.createLongIdent [ "System" ; "Guid" ; "Parse" ])
-                SynExpr.CreateLongIdent (SynLongIdent.Create [ "System" ; "Guid" ; "Parse" ])
-            )
         | DateTime ->
             node
             |> asValueGetValue propertyName "string"
-            |> SynExpr.pipeThroughFunction (
+            |> SynExpr.pipeThroughFunction (SynExpr.createLongIdent [ "System" ; "DateTime" ; "Parse" ])
-                SynExpr.CreateLongIdent (SynLongIdent.Create [ "System" ; "DateTime" ; "Parse" ])
+        | NumberType typeName -> parseNumberType options propertyName node typeName
-            )
-        | NumberType typeName ->
-            let basic = asValueGetValue propertyName typeName node
-
-            match options.JsonNumberHandlingArg with
-            | None -> basic
-            | Some option ->
-                let cond =
-                    SynExpr.DotGet (
-                        SynExpr.CreateIdentString "exc",
-                        range0,
-                        SynLongIdent.CreateString "Message",
-                        range0
-                    )
-                    |> SynExpr.callMethodArg
-                        "Contains"
-                        (SynExpr.CreateConst (SynConst.CreateString "cannot be converted to"))
-
-                let handler =
-                    asValueGetValue propertyName "string" node
-                    |> SynExpr.pipeThroughFunction (
-                        SynExpr.CreateLongIdent (SynLongIdent.CreateFromLongIdent (parseFunction typeName))
-                    )
-                    |> SynExpr.ifThenElse
-                        (SynExpr.equals
-                            option
-                            (SynExpr.CreateLongIdent (
-                                SynLongIdent.Create
-                                    [
-                                        "System"
-                                        "Text"
-                                        "Json"
-                                        "Serialization"
-                                        "JsonNumberHandling"
-                                        "AllowReadingFromString"
-                                    ]
-                            )))
-                        SynExpr.reraise
-                    |> SynExpr.ifThenElse cond SynExpr.reraise
-
-                basic
-                |> SynExpr.pipeThroughTryWith
-                    (SynPat.IsInst (
-                        SynType.LongIdent (SynLongIdent.Create [ "System" ; "InvalidOperationException" ]),
-                        range0
-                    ))
-                    handler
         | PrimitiveType typeName -> asValueGetValueIdent propertyName typeName node
         | OptionType ty ->
-            parseNode None options ty (SynExpr.CreateIdentString "v")
+            parseNode None options ty (SynExpr.createIdent "v")
             |> createParseLineOption node
         | ListType ty ->
-            parseNode None options ty (SynExpr.CreateLongIdent (SynLongIdent.CreateString "elt"))
+            parseNode None options ty (SynExpr.createIdent "elt")
             |> asArrayMapped propertyName "List" node
         | ArrayType ty ->
-            parseNode None options ty (SynExpr.CreateLongIdent (SynLongIdent.CreateString "elt"))
+            parseNode None options ty (SynExpr.createIdent "elt")
             |> asArrayMapped propertyName "Array" node
         | IDictionaryType (keyType, valueType) ->
             node
             |> asObject propertyName
             |> SynExpr.pipeThroughFunction (
-                SynExpr.CreateApp (
+                SynExpr.applyFunction
-                    SynExpr.CreateLongIdent (SynLongIdent.Create [ "Seq" ; "map" ]),
+                    (SynExpr.createLongIdent [ "Seq" ; "map" ])
-                    dictionaryMapper (parseKeyString keyType) (parseNode None options valueType)
+                    (dictionaryMapper (parseKeyString keyType) (parseNode None options valueType))
-                )
             )
-            |> SynExpr.pipeThroughFunction (SynExpr.CreateLongIdent (SynLongIdent.Create [ "dict" ]))
+            |> SynExpr.pipeThroughFunction (SynExpr.createIdent "dict")
         | DictionaryType (keyType, valueType) ->
             node
             |> asObject propertyName
             |> SynExpr.pipeThroughFunction (
-                SynExpr.CreateApp (
+                SynExpr.applyFunction
-                    SynExpr.CreateLongIdent (SynLongIdent.Create [ "Seq" ; "map" ]),
+                    (SynExpr.createLongIdent [ "Seq" ; "map" ])
-                    dictionaryMapper (parseKeyString keyType) (parseNode None options valueType)
+                    (dictionaryMapper (parseKeyString keyType) (parseNode None options valueType))
-                )
             )
             |> SynExpr.pipeThroughFunction (
-                SynExpr.CreateApp (
+                SynExpr.applyFunction
-                    SynExpr.CreateLongIdent (SynLongIdent.Create [ "Seq" ; "map" ]),
+                    (SynExpr.createLongIdent [ "Seq" ; "map" ])
-                    SynExpr.CreateLongIdent (
+                    (SynExpr.createLongIdent [ "System" ; "Collections" ; "Generic" ; "KeyValuePair" ])
-                        SynLongIdent.Create [ "System" ; "Collections" ; "Generic" ; "KeyValuePair" ]
-                    )
-                )
             )
             |> SynExpr.pipeThroughFunction (
-                SynExpr.CreateLongIdent (SynLongIdent.Create [ "System" ; "Collections" ; "Generic" ; "Dictionary" ])
+                SynExpr.createLongIdent [ "System" ; "Collections" ; "Generic" ; "Dictionary" ]
             )
         | IReadOnlyDictionaryType (keyType, valueType) ->
             node
             |> asObject propertyName
             |> SynExpr.pipeThroughFunction (
-                SynExpr.CreateApp (
+                SynExpr.applyFunction
-                    SynExpr.CreateLongIdent (SynLongIdent.Create [ "Seq" ; "map" ]),
+                    (SynExpr.createLongIdent [ "Seq" ; "map" ])
-                    dictionaryMapper (parseKeyString keyType) (parseNode None options valueType)
+                    (dictionaryMapper (parseKeyString keyType) (parseNode None options valueType))
-                )
             )
-            |> SynExpr.pipeThroughFunction (SynExpr.CreateLongIdent (SynLongIdent.Create [ "readOnlyDict" ]))
+            |> SynExpr.pipeThroughFunction (SynExpr.createIdent "readOnlyDict")
         | MapType (keyType, valueType) ->
             node
             |> asObject propertyName
             |> SynExpr.pipeThroughFunction (
-                SynExpr.CreateApp (
+                SynExpr.applyFunction
-                    SynExpr.CreateLongIdent (SynLongIdent.Create [ "Seq" ; "map" ]),
+                    (SynExpr.createLongIdent [ "Seq" ; "map" ])
-                    dictionaryMapper (parseKeyString keyType) (parseNode None options valueType)
+                    (dictionaryMapper (parseKeyString keyType) (parseNode None options valueType))
-                )
             )
-            |> SynExpr.pipeThroughFunction (SynExpr.CreateLongIdent (SynLongIdent.Create [ "Map" ; "ofSeq" ]))
+            |> SynExpr.pipeThroughFunction (SynExpr.createLongIdent [ "Map" ; "ofSeq" ])
         | BigInt ->
-            SynExpr.CreateApp (
+            node
-                SynExpr.CreateLongIdent (SynLongIdent.Create [ "System" ; "Numerics" ; "BigInteger" ; "Parse" ]),
+            |> SynExpr.callMethod "ToJsonString"
-                SynExpr.CreateParen (node |> SynExpr.callMethod "ToJsonString")
+            |> SynExpr.paren
-            )
+            |> SynExpr.applyFunction (SynExpr.createLongIdent [ "System" ; "Numerics" ; "BigInteger" ; "Parse" ])
+        | Measure (_measure, primType) ->
+            let qualified =
+                match Primitives.qualifyType primType with
+                | None -> failwith $"did not recognise type %s{primType} to assign measure"
+                | Some t -> t
+
+            parseNumberType options propertyName node primType
+            |> SynExpr.pipeThroughFunction (Measure.getLanguagePrimitivesMeasure qualified)
         | _ ->
             // Let's just hope that we've also got our own type annotation!
             let typeName =
@@ -344,9 +291,8 @@ module internal JsonParseGenerator =
     /// propertyName is probably a string literal, but it could be a [<Literal>] variable
     /// The result of this function is the body of a let-binding (not including the LHS of that let-binding).
     let createParseRhs (options : JsonParseOption) (propertyName : SynExpr) (fieldType : SynType) : SynExpr =
-        SynExpr.CreateIdentString "node"
+        let objectToParse = SynExpr.createIdent "node" |> SynExpr.index propertyName
-        |> SynExpr.index propertyName
+        parseNode (Some propertyName) options fieldType objectToParse
-        |> parseNode (Some propertyName) options fieldType
 
     let isJsonNumberHandling (literal : LongIdent) : bool =
         match List.rev literal |> List.map (fun ident -> ident.idText) with
@@ -357,270 +303,260 @@ module internal JsonParseGenerator =
         | [ _ ; "JsonNumberHandling" ; "Serialization" ; "Json" ; "Text" ; "System" ] -> true
         | _ -> false
 
-    let createMaker (spec : JsonParseOutputSpec) (typeName : LongIdent) (fields : SynField list) =
+    /// `populateNode` will be inserted before we return the `node` variable.
-        let xmlDoc = PreXmlDoc.Create " Parse from a JSON node."
+    ///
+    /// That is, we give you access to a `JsonNode` called `node`,
+    /// and you must return a `typeName`.
+    let scaffolding (spec : JsonParseOutputSpec) (typeName : LongIdent) (functionBody : SynExpr) : SynModuleDecl =
+        let xmlDoc = PreXmlDoc.create "Parse from a JSON node."
 
-        let returnInfo =
+        let returnInfo = SynType.createLongIdent typeName
-            SynBindingReturnInfo.Create (SynType.LongIdent (SynLongIdent.CreateFromLongIdent typeName))
 
-        let inputArg = Ident.Create "node"
+        let inputArg = "node"
-        let functionName = Ident.Create "jsonParse"
+        let functionName = Ident.create "jsonParse"
 
-        let inputVal =
+        let arg =
-            let memberFlags =
+            SynPat.named inputArg
-                if spec.ExtensionMethods then
+            |> SynPat.annotateType (SynType.createLongIdent' [ "System" ; "Text" ; "Json" ; "Nodes" ; "JsonNode" ])
-                    {
-                        SynMemberFlags.IsInstance = false
-                        SynMemberFlags.IsDispatchSlot = false
-                        SynMemberFlags.IsOverrideOrExplicitImpl = false
-                        SynMemberFlags.IsFinal = false
-                        SynMemberFlags.GetterOrSetterIsCompilerGenerated = false
-                        SynMemberFlags.MemberKind = SynMemberKind.Member
-                    }
-                    |> Some
-                else
-                    None
 
-            let thisIdOpt = if spec.ExtensionMethods then None else Some inputArg
+        if spec.ExtensionMethods then
+            let binding =
+                SynBinding.basic [ functionName ] [ arg ] functionBody
+                |> SynBinding.withXmlDoc xmlDoc
+                |> SynBinding.withReturnAnnotation returnInfo
+                |> SynMemberDefn.staticMember
 
-            SynValData.SynValData (
+            let componentInfo =
-                memberFlags,
+                SynComponentInfo.createLong typeName
-                SynValInfo.SynValInfo ([ [ SynArgInfo.CreateId functionName ] ], SynArgInfo.Empty),
+                |> SynComponentInfo.withDocString (PreXmlDoc.create "Extension methods for JSON parsing")
-                thisIdOpt
-            )
 
+            let containingType =
+                SynTypeDefnRepr.augmentation ()
+                |> SynTypeDefn.create componentInfo
+                |> SynTypeDefn.withMemberDefns [ binding ]
+
+            SynModuleDecl.Types ([ containingType ], range0)
+        else
+            SynBinding.basic [ functionName ] [ arg ] functionBody
+            |> SynBinding.withXmlDoc xmlDoc
+            |> SynBinding.withReturnAnnotation returnInfo
+            |> SynModuleDecl.createLet
+
+    let getParseOptions (fieldAttrs : SynAttribute list) =
+        (JsonParseOption.None, fieldAttrs)
+        ||> List.fold (fun options attr ->
+            if
+                (SynLongIdent.toString attr.TypeName)
+                    .EndsWith ("JsonNumberHandling", StringComparison.Ordinal)
+            then
+                let qualifiedEnumValue =
+                    match SynExpr.stripOptionalParen attr.ArgExpr with
+                    | SynExpr.LongIdent (_, SynLongIdent (ident, _, _), _, _) when isJsonNumberHandling ident ->
+                        // Make sure it's fully qualified
+                        SynExpr.createLongIdent
+                            [
+                                "System"
+                                "Text"
+                                "Json"
+                                "Serialization"
+                                "JsonNumberHandling"
+                                "AllowReadingFromString"
+                            ]
+                    | _ -> attr.ArgExpr
+
+                {
+                    JsonNumberHandlingArg = Some qualifiedEnumValue
+                }
+            else
+                options
+        )
+
+    let createRecordMaker (spec : JsonParseOutputSpec) (fields : SynFieldData<Ident> list) =
         let assignments =
             fields
-            |> List.map (fun (SynField (attrs, _, id, fieldType, _, _, _, _, _)) ->
+            |> List.mapi (fun i fieldData ->
-                let id =
-                    match id with
-                    | None -> failwith "didn't get an ID on field"
-                    | Some id -> id
-
-                let attrs = attrs |> List.collect (fun l -> l.Attributes)
-
                 let propertyNameAttr =
-                    attrs
+                    fieldData.Attrs
                     |> List.tryFind (fun attr ->
-                        attr.TypeName.AsString.EndsWith ("JsonPropertyName", StringComparison.Ordinal)
+                        (SynLongIdent.toString attr.TypeName)
+                            .EndsWith ("JsonPropertyName", StringComparison.Ordinal)
                     )
 
-                let options =
+                let options = getParseOptions fieldData.Attrs
-                    (JsonParseOption.None, attrs)
-                    ||> List.fold (fun options attr ->
-                        if attr.TypeName.AsString.EndsWith ("JsonNumberHandling", StringComparison.Ordinal) then
-                            let qualifiedEnumValue =
-                                match SynExpr.stripOptionalParen attr.ArgExpr with
-                                | SynExpr.LongIdent (_, SynLongIdent (ident, _, _), _, _) when
-                                    isJsonNumberHandling ident
-                                    ->
-                                    // Make sure it's fully qualified
-                                    SynExpr.CreateLongIdent (
-                                        SynLongIdent.Create
-                                            [
-                                                "System"
-                                                "Text"
-                                                "Json"
-                                                "Serialization"
-                                                "JsonNumberHandling"
-                                                "AllowReadingFromString"
-                                            ]
-                                    )
-                                | _ -> attr.ArgExpr
-
-                            {
-                                JsonNumberHandlingArg = Some qualifiedEnumValue
-                            }
-                        else
-                            options
-                    )
 
                 let propertyName =
                     match propertyNameAttr with
                     | None ->
-                        let sb = StringBuilder id.idText.Length
+                        let sb = StringBuilder fieldData.Ident.idText.Length
-                        sb.Append (Char.ToLowerInvariant id.idText.[0]) |> ignore
 
-                        if id.idText.Length > 1 then
+                        sb.Append (Char.ToLowerInvariant fieldData.Ident.idText.[0])
-                            sb.Append id.idText.[1..] |> ignore
+                        |> ignore<StringBuilder>
 
-                        sb.ToString () |> SynConst.CreateString |> SynExpr.CreateConst
+                        if fieldData.Ident.idText.Length > 1 then
+                            sb.Append (fieldData.Ident.idText.Substring 1) |> ignore<StringBuilder>
+
+                        sb.ToString () |> SynExpr.CreateConst
                     | Some name -> name.ArgExpr
 
-                let pattern =
+                createParseRhs options propertyName fieldData.Type
-                    SynPat.LongIdent (
+                |> SynBinding.basic [ Ident.create $"arg_%i{i}" ] []
-                        SynLongIdent.CreateFromLongIdent [ id ],
-                        None,
-                        None,
-                        SynArgPats.Empty,
-                        None,
-                        range0
-                    )
-
-                SynBinding.Let (
-                    isInline = false,
-                    isMutable = false,
-                    expr = createParseRhs options propertyName fieldType,
-                    valData = inputVal,
-                    pattern = pattern
-                )
             )
 
         let finalConstruction =
             fields
-            |> List.map (fun (SynField (_, _, id, _, _, _, _, _, _)) ->
+            |> List.mapi (fun i fieldData ->
-                let id =
+                (SynLongIdent.createI fieldData.Ident, true), Some (SynExpr.createIdent $"arg_%i{i}")
-                    match id with
-                    | None -> failwith "Expected record field to have an identifying name"
-                    | Some id -> id
-
-                (SynLongIdent.CreateFromLongIdent [ id ], true),
-                Some (SynExpr.CreateLongIdent (SynLongIdent.CreateFromLongIdent [ id ]))
             )
             |> AstHelper.instantiateRecord
 
-        let assignments =
+        (finalConstruction, assignments)
-            (finalConstruction, assignments)
+        ||> List.fold (fun final assignment -> SynExpr.createLet [ assignment ] final)
-            ||> List.fold (fun final assignment ->
-                SynExpr.LetOrUse (
-                    false,
-                    false,
-                    [ assignment ],
-                    final,
-                    range0,
-                    {
-                        InKeyword = None
-                    }
-                )
-            )
 
-        let pattern =
+    let createUnionMaker (spec : JsonParseOutputSpec) (typeName : LongIdent) (fields : UnionCase<Ident> list) =
-            SynPat.LongIdent (
+        fields
-                SynLongIdent.CreateFromLongIdent [ functionName ],
+        |> List.map (fun case ->
-                None,
+            let propertyName = JsonSerializeGenerator.getPropertyName case.Ident case.Attrs
-                None,
-                SynArgPats.Pats
-                    [
-                        SynPat.CreateTyped (
-                            SynPat.CreateNamed inputArg,
-                            SynType.LongIdent (
-                                SynLongIdent.Create [ "System" ; "Text" ; "Json" ; "Nodes" ; "JsonNode" ]
-                            )
-                        )
-                        |> SynPat.CreateParen
-                    ],
-                None,
-                range0
-            )
 
-        if spec.ExtensionMethods then
+            let body =
-            let binding =
+                if case.Fields.IsEmpty then
-                SynBinding.SynBinding (
+                    SynExpr.createLongIdent' (typeName @ [ case.Ident ])
+                else
+                    case.Fields
+                    |> List.map (fun field ->
+                        let propertyName = JsonSerializeGenerator.getPropertyName field.Ident field.Attrs
+                        let options = getParseOptions field.Attrs
+                        createParseRhs options propertyName field.Type
+                    )
+                    |> SynExpr.tuple
+                    |> SynExpr.applyFunction (SynExpr.createLongIdent' (typeName @ [ case.Ident ]))
+                    |> SynExpr.createLet
+                        [
+                            SynExpr.index (SynExpr.CreateConst "data") (SynExpr.createIdent "node")
+                            |> assertNotNull (SynExpr.CreateConst "data")
+                            |> SynBinding.basic [ Ident.create "node" ] []
+                        ]
+
+            match propertyName with
+            | SynExpr.Const (synConst, _) ->
+                SynMatchClause.SynMatchClause (
+                    SynPat.createConst synConst,
                     None,
-                    SynBindingKind.Normal,
+                    body,
-                    false,
-                    false,
-                    [],
-                    xmlDoc,
-                    inputVal,
-                    pattern,
-                    Some returnInfo,
-                    assignments,
                     range0,
-                    DebugPointAtBinding.NoneAtInvisible,
+                    DebugPointAtTarget.Yes,
                     {
-                        LeadingKeyword = SynLeadingKeyword.StaticMember (range0, range0)
+                        ArrowRange = Some range0
-                        InlineKeyword = None
+                        BarRange = Some range0
-                        EqualsRange = Some range0
                     }
                 )
+            | _ ->
+                SynMatchClause.create (SynPat.named "x") body
+                |> SynMatchClause.withWhere (SynExpr.equals (SynExpr.createIdent "x") propertyName)
+        )
+        |> fun l ->
+            l
+            @ [
+                let fail =
+                    SynExpr.plus (SynExpr.CreateConst "Unrecognised 'type' field value: ") (SynExpr.createIdent "v")
+                    |> SynExpr.paren
+                    |> SynExpr.applyFunction (SynExpr.createIdent "failwith")
 
-            let mem = SynMemberDefn.Member (binding, range0)
+                SynMatchClause.SynMatchClause (
-
+                    SynPat.named "v",
-            let containingType =
-                SynTypeDefn.SynTypeDefn (
-                    SynComponentInfo.Create (typeName, xmldoc = PreXmlDoc.Create " Extension methods for JSON parsing"),
-                    SynTypeDefnRepr.ObjectModel (SynTypeDefnKind.Augmentation range0, [], range0),
-                    [ mem ],
                     None,
+                    fail,
                     range0,
+                    DebugPointAtTarget.Yes,
                     {
-                        LeadingKeyword = SynTypeDefnLeadingKeyword.Type range0
+                        ArrowRange = Some range0
-                        EqualsRange = None
+                        BarRange = Some range0
-                        WithKeyword = None
                     }
                 )
+            ]
+        |> SynExpr.createMatch (SynExpr.createIdent "ty")
+        |> SynExpr.createLet
+            [
+                let property = SynExpr.CreateConst "type"
 
-            SynModuleDecl.Types ([ containingType ], range0)
+                SynExpr.createIdent "node"
-        else
+                |> SynExpr.index property
-            let binding =
+                |> assertNotNull property
-                SynBinding.Let (
+                |> SynExpr.pipeThroughFunction (
-                    isInline = false,
+                    SynExpr.createLambda
-                    isMutable = false,
+                        "v"
-                    xmldoc = xmlDoc,
+                        (SynExpr.callGenericMethod "GetValue" [ Ident.create "string" ] (SynExpr.createIdent "v"))
-                    returnInfo = returnInfo,
-                    expr = assignments,
-                    valData = inputVal,
-                    pattern = pattern
                 )
+                |> SynBinding.basic [ Ident.create "ty" ] []
+            ]
 
-            SynModuleDecl.CreateLet [ binding ]
+    let createModule (namespaceId : LongIdent) (spec : JsonParseOutputSpec) (typeDefn : SynTypeDefn) =
-
-    let createRecordModule (namespaceId : LongIdent) (spec : JsonParseOutputSpec) (typeDefn : SynTypeDefn) =
         let (SynTypeDefn (synComponentInfo, synTypeDefnRepr, _members, _implicitCtor, _, _)) =
             typeDefn
 
-        let (SynComponentInfo (_attributes, _typeParams, _constraints, recordId, _, _preferPostfix, _access, _)) =
+        let (SynComponentInfo (_attributes, _typeParams, _constraints, ident, _, _preferPostfix, access, _)) =
             synComponentInfo
 
-        match synTypeDefnRepr with
+        let attributes =
-        | SynTypeDefnRepr.Simple (SynTypeDefnSimpleRepr.Record (_accessibility, recordFields, _recordRange), _) ->
+            if spec.ExtensionMethods then
+                [ SynAttribute.autoOpen ]
+            else
+                [ SynAttribute.requireQualifiedAccess ; SynAttribute.compilationRepresentation ]
 
-            let decls = [ createMaker spec recordId recordFields ]
+        let xmlDoc =
+            let fullyQualified = ident |> Seq.map (fun i -> i.idText) |> String.concat "."
 
-            let attributes =
+            let description =
                 if spec.ExtensionMethods then
-                    [ SynAttributeList.Create SynAttribute.autoOpen ]
+                    "extension members"
                 else
-                    [
+                    "methods"
-                        SynAttributeList.Create (SynAttribute.RequireQualifiedAccess ())
-                        SynAttributeList.Create SynAttribute.compilationRepresentation
-                    ]
 
-            let xmlDoc =
+            $"Module containing JSON parsing %s{description} for the %s{fullyQualified} type"
-                let fullyQualified = recordId |> Seq.map (fun i -> i.idText) |> String.concat "."
+            |> PreXmlDoc.create
 
-                let description =
+        let moduleName =
-                    if spec.ExtensionMethods then
+            if spec.ExtensionMethods then
-                        "extension members"
+                match ident with
-                    else
+                | [] -> failwith "unexpectedly got an empty identifier for record name"
-                        "methods"
+                | ident ->
+                    let expanded =
+                        List.last ident
+                        |> fun i -> i.idText
+                        |> fun s -> s + "JsonParseExtension"
+                        |> Ident.create
 
-                $" Module containing JSON parsing %s{description} for the %s{fullyQualified} type"
+                    List.take (List.length ident - 1) ident @ [ expanded ]
-                |> PreXmlDoc.Create
+            else
+                ident
 
-            let moduleName =
+        let info =
-                if spec.ExtensionMethods then
+            SynComponentInfo.createLong moduleName
-                    match recordId with
+            |> SynComponentInfo.withDocString xmlDoc
-                    | [] -> failwith "unexpectedly got an empty identifier for record name"
+            |> SynComponentInfo.setAccessibility access
-                    | recordId ->
+            |> SynComponentInfo.addAttributes attributes
-                        let expanded =
-                            List.last recordId
-                            |> fun i -> i.idText
-                            |> fun s -> s + "JsonParseExtension"
-                            |> Ident.Create
 
-                        List.take (List.length recordId - 1) recordId @ [ expanded ]
+        let decl =
-                else
+            match synTypeDefnRepr with
-                    recordId
+            | SynTypeDefnRepr.Simple (SynTypeDefnSimpleRepr.Record (_accessibility, fields, _range), _) ->
+                fields |> List.map SynField.extractWithIdent |> createRecordMaker spec
+            | SynTypeDefnRepr.Simple (SynTypeDefnSimpleRepr.Union (_accessibility, cases, _range), _) ->
+                let optionGet (i : Ident option) =
+                    match i with
+                    | None -> failwith "WoofWare.Myriad requires union cases to have identifiers on each field."
+                    | Some i -> i
 
-            let info =
+                cases
-                SynComponentInfo.Create (moduleName, attributes = attributes, xmldoc = xmlDoc)
+                |> List.map SynUnionCase.extract
+                |> List.map (UnionCase.mapIdentFields optionGet)
+                |> createUnionMaker spec ident
+            | _ -> failwithf "Not a record or union type"
 
-            let mdl = SynModuleDecl.CreateNestedModule (info, decls)
+        [ scaffolding spec ident decl ]
+        |> SynModuleDecl.nestedModule info
+        |> List.singleton
+        |> SynModuleOrNamespace.createNamespace namespaceId
 
-            SynModuleOrNamespace.CreateNamespace (namespaceId, decls = [ mdl ])
+open Myriad.Core
-        | _ -> failwithf "Not a record type"
 
 /// Myriad generator that provides a method (possibly an extension method) for a record type,
 /// containing a JSON parse function.
@@ -634,10 +570,20 @@ type JsonParseGenerator () =
             let ast, _ =
                 Ast.fromFilename context.InputFilename |> Async.RunSynchronously |> Array.head
 
-            let records = Ast.extractRecords ast
+            let recordsAndUnions =
+                Ast.extractTypeDefn ast
+                |> List.map (fun (name, defns) ->
+                    defns
+                    |> List.choose (fun defn ->
+                        if Ast.isRecord defn then Some defn
+                        elif Ast.isDu defn then Some defn
+                        else None
+                    )
+                    |> fun defns -> name, defns
+                )
 
-            let namespaceAndRecords =
+            let namespaceAndTypes =
-                records
+                recordsAndUnions
                 |> List.choose (fun (ns, types) ->
                     types
                     |> List.choose (fun typeDef ->
@@ -665,13 +611,9 @@ type JsonParseGenerator () =
                 )
 
             let modules =
-                namespaceAndRecords
+                namespaceAndTypes
-                |> List.collect (fun (ns, records) ->
+                |> List.collect (fun (ns, types) ->
-                    records
+                    types |> List.map (fun (ty, spec) -> JsonParseGenerator.createModule ns spec ty)
-                    |> List.map (fun (record, spec) ->
-                        let recordModule = JsonParseGenerator.createRecordModule ns spec record
-                        recordModule
-                    )
                 )
 
             Output.Ast modules

WoofWare.Myriad.Plugins/JsonSerializeGenerator.fs

@@ -3,9 +3,6 @@ namespace WoofWare.Myriad.Plugins
 open System
 open System.Text
 open Fantomas.FCS.Syntax
-open Fantomas.FCS.SyntaxTrivia
-open Fantomas.FCS.Xml
-open Myriad.Core
 
 type internal JsonSerializeOutputSpec =
     {
@@ -15,7 +12,6 @@ type internal JsonSerializeOutputSpec =
 [<RequireQualifiedAccess>]
 module internal JsonSerializeGenerator =
     open Fantomas.FCS.Text.Range
-    open Myriad.Core.Ast
 
     /// Given `input.Ident`, for example, choose how to add it to the ambient `node`.
     /// The result is a line like `(fun ident -> InnerType.toJsonNode ident)` or `(fun ident -> JsonValue.Create ident)`.
@@ -30,9 +26,7 @@ module internal JsonSerializeGenerator =
         | Uri ->
             // JsonValue.Create<type>
             SynExpr.TypeApp (
-                SynExpr.CreateLongIdent (
+                SynExpr.createLongIdent [ "System" ; "Text" ; "Json" ; "Nodes" ; "JsonValue" ; "Create" ],
-                    SynLongIdent.Create [ "System" ; "Text" ; "Json" ; "Nodes" ; "JsonValue" ; "Create" ]
-                ),
                 range0,
                 [ fieldType ],
                 [],
@@ -42,39 +36,24 @@ module internal JsonSerializeGenerator =
             )
         | OptionType ty ->
             // fun field -> match field with | None -> JsonValue.Create null | Some v -> {serializeNode ty} field
-            SynExpr.CreateMatch (
+            let noneClause =
-                SynExpr.CreateIdentString "field",
+                // The absolutely galaxy-brained implementation of JsonValue has `JsonValue.Parse "null"`
-                [
+                // identically equal to null. We have to work around this later, but we might as well just
-                    SynMatchClause.Create (
+                // be efficient here and whip up the null directly.
-                        SynPat.CreateLongIdent (SynLongIdent.CreateString "None", []),
+                SynExpr.createNull ()
-                        None,
+                |> SynExpr.upcast' (SynType.createLongIdent' [ "System" ; "Text" ; "Json" ; "Nodes" ; "JsonNode" ])
-                        // The absolutely galaxy-brained implementation of JsonValue has `JsonValue.Parse "null"`
+                |> SynMatchClause.create (SynPat.named "None")
-                        // identically equal to null. We have to work around this later, but we might as well just
-                        // be efficient here and whip up the null directly.
-                        SynExpr.CreateNull
-                        |> SynExpr.upcast' (
-                            SynType.CreateLongIdent (
-                                SynLongIdent.Create [ "System" ; "Text" ; "Json" ; "Nodes" ; "JsonNode" ]
-                            )
-                        )
-                    )
 
-                    SynMatchClause.Create (
+            let someClause =
-                        SynPat.CreateLongIdent (
+                SynExpr.applyFunction (serializeNode ty) (SynExpr.createIdent "field")
-                            SynLongIdent.CreateString "Some",
+                |> SynExpr.paren
-                            [ SynPat.CreateNamed (Ident.Create "field") ]
+                |> SynExpr.upcast' (SynType.createLongIdent' [ "System" ; "Text" ; "Json" ; "Nodes" ; "JsonNode" ])
-                        ),
+                |> SynMatchClause.create (
-                        None,
+                    SynPat.identWithArgs [ Ident.create "Some" ] (SynArgPats.create [ Ident.create "field" ])
-                        SynExpr.CreateApp (serializeNode ty, SynExpr.CreateIdentString "field")
+                )
-                        |> SynExpr.CreateParen
+
-                        |> SynExpr.upcast' (
+            [ noneClause ; someClause ]
-                            SynType.CreateLongIdent (
+            |> SynExpr.createMatch (SynExpr.createIdent "field")
-                                SynLongIdent.Create [ "System" ; "Text" ; "Json" ; "Nodes" ; "JsonNode" ]
-                            )
-                        )
-                    )
-                ]
-            )
             |> SynExpr.createLambda "field"
         | ArrayType ty
         | ListType ty ->
@@ -82,116 +61,69 @@ module internal JsonSerializeGenerator =
             //     let arr = JsonArray ()
             //     for mem in field do arr.Add ({serializeNode} mem)
             //     arr
-            SynExpr.LetOrUse (
+            [
-                false,
+                SynExpr.ForEach (
-                false,
+                    DebugPointAtFor.Yes range0,
+                    DebugPointAtInOrTo.Yes range0,
+                    SeqExprOnly.SeqExprOnly false,
+                    true,
+                    SynPat.named "mem",
+                    SynExpr.createIdent "field",
+                    SynExpr.applyFunction
+                        (SynExpr.createLongIdent [ "arr" ; "Add" ])
+                        (SynExpr.paren (SynExpr.applyFunction (serializeNode ty) (SynExpr.createIdent "mem"))),
+                    range0
+                )
+                SynExpr.createIdent "arr"
+            ]
+            |> SynExpr.sequential
+            |> SynExpr.createLet
                 [
-                    SynBinding.Let (
+                    SynExpr.createLongIdent [ "System" ; "Text" ; "Json" ; "Nodes" ; "JsonArray" ]
-                        pattern = SynPat.CreateNamed (Ident.Create "arr"),
+                    |> SynExpr.applyTo (SynExpr.CreateConst ())
-                        expr =
+                    |> SynBinding.basic [ Ident.create "arr" ] []
-                            SynExpr.CreateApp (
+                ]
-                                SynExpr.CreateLongIdent (
-                                    SynLongIdent.Create [ "System" ; "Text" ; "Json" ; "Nodes" ; "JsonArray" ]
-                                ),
-                                SynExpr.CreateConst SynConst.Unit
-                            )
-                    )
-                ],
-                SynExpr.CreateSequential
-                    [
-                        SynExpr.ForEach (
-                            DebugPointAtFor.Yes range0,
-                            DebugPointAtInOrTo.Yes range0,
-                            SeqExprOnly.SeqExprOnly false,
-                            true,
-                            SynPat.CreateNamed (Ident.Create "mem"),
-                            SynExpr.CreateIdent (Ident.Create "field"),
-                            SynExpr.CreateApp (
-                                SynExpr.CreateLongIdent (SynLongIdent.Create [ "arr" ; "Add" ]),
-                                SynExpr.CreateParen (
-                                    SynExpr.CreateApp (serializeNode ty, SynExpr.CreateIdentString "mem")
-                                )
-                            ),
-                            range0
-                        )
-                        SynExpr.CreateIdentString "arr"
-                    ],
-                range0,
-                {
-                    InKeyword = None
-                }
-            )
             |> SynExpr.createLambda "field"
-        | IDictionaryType (keyType, valueType)
+        | IDictionaryType (_keyType, valueType)
-        | DictionaryType (keyType, valueType)
+        | DictionaryType (_keyType, valueType)
-        | IReadOnlyDictionaryType (keyType, valueType)
+        | IReadOnlyDictionaryType (_keyType, valueType)
-        | MapType (keyType, valueType) ->
+        | MapType (_keyType, valueType) ->
             // fun field ->
             //    let ret = JsonObject ()
             //    for (KeyValue(key, value)) in field do
             //        ret.Add (key.ToString (), {serializeNode} value)
             //    ret
-            SynExpr.LetOrUse (
+            [
-                false,
+                SynExpr.ForEach (
-                false,
+                    DebugPointAtFor.Yes range0,
+                    DebugPointAtInOrTo.Yes range0,
+                    SeqExprOnly.SeqExprOnly false,
+                    true,
+                    SynPat.paren (
+                        SynPat.identWithArgs
+                            [ Ident.create "KeyValue" ]
+                            (SynArgPats.create [ Ident.create "key" ; Ident.create "value" ])
+                    ),
+                    SynExpr.createIdent "field",
+                    SynExpr.applyFunction
+                        (SynExpr.createLongIdent [ "ret" ; "Add" ])
+                        (SynExpr.tuple
+                            [
+                                SynExpr.createLongIdent [ "key" ; "ToString" ]
+                                |> SynExpr.applyTo (SynExpr.CreateConst ())
+                                SynExpr.applyFunction (serializeNode valueType) (SynExpr.createIdent "value")
+                            ]),
+                    range0
+                )
+                SynExpr.createIdent "ret"
+            ]
+            |> SynExpr.sequential
+            |> SynExpr.createLet
                 [
-                    SynBinding.Let (
+                    SynExpr.createLongIdent [ "System" ; "Text" ; "Json" ; "Nodes" ; "JsonObject" ]
-                        pattern = SynPat.CreateNamed (Ident.Create "ret"),
+                    |> SynExpr.applyTo (SynExpr.CreateConst ())
-                        expr =
+                    |> SynBinding.basic [ Ident.create "ret" ] []
-                            SynExpr.CreateApp (
+                ]
-                                SynExpr.CreateLongIdent (
-                                    SynLongIdent.Create [ "System" ; "Text" ; "Json" ; "Nodes" ; "JsonObject" ]
-                                ),
-                                SynExpr.CreateConst SynConst.Unit
-                            )
-                    )
-                ],
-                SynExpr.CreateSequential
-                    [
-                        SynExpr.ForEach (
-                            DebugPointAtFor.Yes range0,
-                            DebugPointAtInOrTo.Yes range0,
-                            SeqExprOnly.SeqExprOnly false,
-                            true,
-                            SynPat.CreateParen (
-                                SynPat.CreateLongIdent (
-                                    SynLongIdent.CreateString "KeyValue",
-                                    [
-                                        SynPat.CreateParen (
-                                            SynPat.Tuple (
-                                                false,
-                                                [
-                                                    SynPat.CreateNamed (Ident.Create "key")
-                                                    SynPat.CreateNamed (Ident.Create "value")
-                                                ],
-                                                [ range0 ],
-                                                range0
-                                            )
-                                        )
-                                    ]
-                                )
-                            ),
-                            SynExpr.CreateIdent (Ident.Create "field"),
-                            SynExpr.CreateApp (
-                                SynExpr.CreateLongIdent (SynLongIdent.Create [ "ret" ; "Add" ]),
-                                SynExpr.CreateParenedTuple
-                                    [
-                                        SynExpr.CreateApp (
-                                            SynExpr.CreateLongIdent (SynLongIdent.Create [ "key" ; "ToString" ]),
-                                            SynExpr.CreateConst SynConst.Unit
-                                        )
-                                        SynExpr.CreateApp (serializeNode valueType, SynExpr.CreateIdentString "value")
-                                    ]
-                            ),
-                            range0
-                        )
-                        SynExpr.CreateIdentString "ret"
-                    ],
-                range0,
-                {
-                    InKeyword = None
-                }
-            )
             |> SynExpr.createLambda "field"
         | _ ->
             // {type}.toJsonNode
@@ -200,213 +132,189 @@ module internal JsonSerializeGenerator =
                 | SynType.LongIdent ident -> ident.LongIdent
                 | _ -> failwith $"Unrecognised type: %+A{fieldType}"
 
-            SynExpr.CreateLongIdent (SynLongIdent.CreateFromLongIdent (typeName @ [ Ident.Create "toJsonNode" ]))
+            SynExpr.createLongIdent' (typeName @ [ Ident.create "toJsonNode" ])
 
     /// propertyName is probably a string literal, but it could be a [<Literal>] variable
     /// `node.Add ({propertyName}, {toJsonNode})`
-    let createSerializeRhs (propertyName : SynExpr) (fieldId : Ident) (fieldType : SynType) : SynExpr =
+    let createSerializeRhsRecord (propertyName : SynExpr) (fieldId : Ident) (fieldType : SynType) : SynExpr =
-        let func = SynExpr.CreateLongIdent (SynLongIdent.Create [ "node" ; "Add" ])
+        [
+            propertyName
+            SynExpr.applyFunction
+                (serializeNode fieldType)
+                (SynExpr.createLongIdent' [ Ident.create "input" ; fieldId ])
+        ]
+        |> SynExpr.tuple
+        |> SynExpr.applyFunction (SynExpr.createLongIdent [ "node" ; "Add" ])
 
-        let args =
+    let getPropertyName (fieldId : Ident) (attrs : SynAttribute list) : SynExpr =
-            SynExpr.CreateParenedTuple
+        let propertyNameAttr =
-                [
+            attrs
-                    propertyName
+            |> List.tryFind (fun attr ->
-                    SynExpr.CreateApp (
+                (SynLongIdent.toString attr.TypeName)
-                        serializeNode fieldType,
+                    .EndsWith ("JsonPropertyName", StringComparison.Ordinal)
-                        SynExpr.CreateLongIdent (SynLongIdent.CreateFromLongIdent [ Ident.Create "input" ; fieldId ])
+            )
-                    )
-                ]
 
-        SynExpr.CreateApp (func, args)
+        match propertyNameAttr with
+        | None ->
+            let sb = StringBuilder fieldId.idText.Length
+            sb.Append (Char.ToLowerInvariant fieldId.idText.[0]) |> ignore
 
-    let createMaker (spec : JsonSerializeOutputSpec) (typeName : LongIdent) (fields : SynField list) =
+            if fieldId.idText.Length > 1 then
-        let xmlDoc = PreXmlDoc.Create " Serialize to a JSON node"
+                sb.Append fieldId.idText.[1..] |> ignore
+
+            sb.ToString () |> SynExpr.CreateConst
+        | Some name -> name.ArgExpr
+
+    /// `populateNode` will be inserted before we return the `node` variable.
+    ///
+    /// That is, we give you access to a `JsonObject` called `node`,
+    /// and you have access to a variable `inputArgName` which is of type `typeName`.
+    /// Your job is to provide a `populateNode` expression which has the side effect
+    /// of mutating `node` to faithfully reflect the value of `inputArgName`.
+    let scaffolding
+        (spec : JsonSerializeOutputSpec)
+        (typeName : LongIdent)
+        (inputArgName : Ident)
+        (populateNode : SynExpr)
+        : SynModuleDecl
+        =
+        let xmlDoc = PreXmlDoc.create "Serialize to a JSON node"
 
         let returnInfo =
-            SynBindingReturnInfo.Create (
+            SynLongIdent.createS' [ "System" ; "Text" ; "Json" ; "Nodes" ; "JsonNode" ]
-                SynType.LongIdent (SynLongIdent.Create [ "System" ; "Text" ; "Json" ; "Nodes" ; "JsonNode" ])
+            |> SynType.LongIdent
-            )
 
-        let inputArg = Ident.Create "input"
+        let functionName = Ident.create "toJsonNode"
-        let functionName = Ident.Create "toJsonNode"
-
-        let inputVal =
-            let memberFlags =
-                if spec.ExtensionMethods then
-                    {
-                        SynMemberFlags.IsInstance = false
-                        SynMemberFlags.IsDispatchSlot = false
-                        SynMemberFlags.IsOverrideOrExplicitImpl = false
-                        SynMemberFlags.IsFinal = false
-                        SynMemberFlags.GetterOrSetterIsCompilerGenerated = false
-                        SynMemberFlags.MemberKind = SynMemberKind.Member
-                    }
-                    |> Some
-                else
-                    None
-
-            let thisIdOpt = if spec.ExtensionMethods then None else Some inputArg
-
-            SynValData.SynValData (
-                memberFlags,
-                SynValInfo.SynValInfo ([ [ SynArgInfo.CreateId functionName ] ], SynArgInfo.Empty),
-                thisIdOpt
-            )
 
         let assignments =
-            fields
+            [
-            |> List.map (fun (SynField (attrs, _, id, fieldType, _, _, _, _, _)) ->
+                populateNode
-                let id =
+                SynExpr.Upcast (SynExpr.createIdent "node", SynType.Anon range0, range0)
-                    match id with
+            ]
-                    | None -> failwith "didn't get an ID on field"
+            |> SynExpr.sequential
-                    | Some id -> id
+            |> SynExpr.createLet
-
-                let attrs = attrs |> List.collect (fun l -> l.Attributes)
-
-                let propertyNameAttr =
-                    attrs
-                    |> List.tryFind (fun attr ->
-                        attr.TypeName.AsString.EndsWith ("JsonPropertyName", StringComparison.Ordinal)
-                    )
-
-                let propertyName =
-                    match propertyNameAttr with
-                    | None ->
-                        let sb = StringBuilder id.idText.Length
-                        sb.Append (Char.ToLowerInvariant id.idText.[0]) |> ignore
-
-                        if id.idText.Length > 1 then
-                            sb.Append id.idText.[1..] |> ignore
-
-                        sb.ToString () |> SynConst.CreateString |> SynExpr.CreateConst
-                    | Some name -> name.ArgExpr
-
-                let pattern =
-                    SynPat.LongIdent (
-                        SynLongIdent.CreateFromLongIdent [ id ],
-                        None,
-                        None,
-                        SynArgPats.Empty,
-                        None,
-                        range0
-                    )
-
-                createSerializeRhs propertyName id fieldType
-            )
-
-        let finalConstruction =
-            fields
-            |> List.map (fun (SynField (_, _, id, _, _, _, _, _, _)) ->
-                let id =
-                    match id with
-                    | None -> failwith "Expected record field to have an identifying name"
-                    | Some id -> id
-
-                (SynLongIdent.CreateFromLongIdent [ id ], true),
-                Some (SynExpr.CreateLongIdent (SynLongIdent.CreateFromLongIdent [ id ]))
-            )
-            |> AstHelper.instantiateRecord
-
-        let assignments = assignments |> SynExpr.CreateSequential
-
-        let assignments =
-            SynExpr.LetOrUse (
-                false,
-                false,
                 [
-                    SynBinding.Let (
+                    SynExpr.createLongIdent [ "System" ; "Text" ; "Json" ; "Nodes" ; "JsonObject" ]
-                        pattern = SynPat.CreateNamed (Ident.Create "node"),
+                    |> SynExpr.applyTo (SynExpr.CreateConst ())
-                        expr =
+                    |> SynBinding.basic [ Ident.create "node" ] []
-                            SynExpr.CreateApp (
+                ]
-                                SynExpr.CreateLongIdent (
-                                    SynLongIdent.Create [ "System" ; "Text" ; "Json" ; "Nodes" ; "JsonObject" ]
-                                ),
-                                SynExpr.CreateConst SynConst.Unit
-                            )
-                    )
-                ],
-                SynExpr.CreateSequential
-                    [
-                        SynExpr.Do (assignments, range0)
-                        SynExpr.Upcast (SynExpr.CreateIdentString "node", SynType.Anon range0, range0)
-                    ],
-                range0,
-                {
-                    InKeyword = None
-                }
-            )
 
         let pattern =
-            SynPat.LongIdent (
+            SynPat.namedI inputArgName
-                SynLongIdent.CreateFromLongIdent [ functionName ],
+            |> SynPat.annotateType (SynType.LongIdent (SynLongIdent.create typeName))
-                None,
-                None,
-                SynArgPats.Pats
-                    [
-                        SynPat.CreateTyped (
-                            SynPat.CreateNamed inputArg,
-                            SynType.LongIdent (SynLongIdent.CreateFromLongIdent typeName)
-                        )
-                        |> SynPat.CreateParen
-                    ],
-                None,
-                range0
-            )
 
         if spec.ExtensionMethods then
-            let binding =
+            let componentInfo =
-                SynBinding.SynBinding (
+                SynComponentInfo.createLong typeName
-                    None,
+                |> SynComponentInfo.withDocString (PreXmlDoc.create "Extension methods for JSON parsing")
-                    SynBindingKind.Normal,
-                    false,
-                    false,
-                    [],
-                    xmlDoc,
-                    inputVal,
-                    pattern,
-                    Some returnInfo,
-                    assignments,
-                    range0,
-                    DebugPointAtBinding.NoneAtInvisible,
-                    {
-                        LeadingKeyword = SynLeadingKeyword.StaticMember (range0, range0)
-                        InlineKeyword = None
-                        EqualsRange = Some range0
-                    }
-                )
 
-            let mem = SynMemberDefn.Member (binding, range0)
+            let memberDef =
+                assignments
+                |> SynBinding.basic [ functionName ] [ pattern ]
+                |> SynBinding.withXmlDoc xmlDoc
+                |> SynBinding.withReturnAnnotation returnInfo
+                |> SynMemberDefn.staticMember
 
             let containingType =
-                SynTypeDefn.SynTypeDefn (
+                SynTypeDefnRepr.augmentation ()
-                    SynComponentInfo.Create (typeName, xmldoc = PreXmlDoc.Create " Extension methods for JSON parsing"),
+                |> SynTypeDefn.create componentInfo
-                    SynTypeDefnRepr.ObjectModel (SynTypeDefnKind.Augmentation range0, [], range0),
+                |> SynTypeDefn.withMemberDefns [ memberDef ]
-                    [ mem ],
-                    None,
-                    range0,
-                    {
-                        LeadingKeyword = SynTypeDefnLeadingKeyword.Type range0
-                        EqualsRange = None
-                        WithKeyword = None
-                    }
-                )
 
             SynModuleDecl.Types ([ containingType ], range0)
         else
-            let binding =
+            assignments
-                SynBinding.Let (
+            |> SynBinding.basic [ functionName ] [ pattern ]
-                    isInline = false,
+            |> SynBinding.withReturnAnnotation returnInfo
-                    isMutable = false,
+            |> SynBinding.withXmlDoc xmlDoc
-                    xmldoc = xmlDoc,
+            |> SynModuleDecl.createLet
-                    returnInfo = returnInfo,
+
-                    expr = assignments,
+    let recordModule (spec : JsonSerializeOutputSpec) (typeName : LongIdent) (fields : SynField list) =
-                    valData = inputVal,
+        let inputArg = Ident.create "input"
-                    pattern = pattern
+        let fields = fields |> List.map SynField.extractWithIdent
+
+        fields
+        |> List.map (fun fieldData ->
+            let propertyName = getPropertyName fieldData.Ident fieldData.Attrs
+            createSerializeRhsRecord propertyName fieldData.Ident fieldData.Type
+        )
+        |> SynExpr.sequential
+        |> fun expr -> SynExpr.Do (expr, range0)
+        |> scaffolding spec typeName inputArg
+
+    let unionModule (spec : JsonSerializeOutputSpec) (typeName : LongIdent) (cases : SynUnionCase list) =
+        let inputArg = Ident.create "input"
+        let fields = cases |> List.map SynUnionCase.extract
+
+        fields
+        |> List.map (fun unionCase ->
+            let propertyName = getPropertyName unionCase.Ident unionCase.Attrs
+
+            let caseNames = unionCase.Fields |> List.mapi (fun i _ -> Ident.create $"arg%i{i}")
+
+            let argPats = SynArgPats.create caseNames
+
+            let pattern =
+                SynPat.LongIdent (
+                    SynLongIdent.create (typeName @ [ unionCase.Ident ]),
+                    None,
+                    None,
+                    argPats,
+                    None,
+                    range0
                 )
 
-            SynModuleDecl.CreateLet [ binding ]
+            let typeLine =
+                [
+                    SynExpr.CreateConst "type"
+                    SynExpr.applyFunction
+                        (SynExpr.createLongIdent [ "System" ; "Text" ; "Json" ; "Nodes" ; "JsonValue" ; "Create" ])
+                        propertyName
+                ]
+                |> SynExpr.tuple
+                |> SynExpr.applyFunction (SynExpr.createLongIdent [ "node" ; "Add" ])
 
-    let createRecordModule
+            let dataNode =
+                SynExpr.createLongIdent [ "System" ; "Text" ; "Json" ; "Nodes" ; "JsonObject" ]
+                |> SynExpr.applyTo (SynExpr.CreateConst ())
+                |> SynBinding.basic [ Ident.create "dataNode" ] []
+
+            let dataBindings =
+                (unionCase.Fields, caseNames)
+                ||> List.zip
+                |> List.map (fun (fieldData, caseName) ->
+                    let propertyName = getPropertyName (Option.get fieldData.Ident) fieldData.Attrs
+
+                    let node =
+                        SynExpr.applyFunction (serializeNode fieldData.Type) (SynExpr.createIdent' caseName)
+
+                    [ propertyName ; node ]
+                    |> SynExpr.tuple
+                    |> SynExpr.applyFunction (SynExpr.createLongIdent [ "dataNode" ; "Add" ])
+                )
+
+            let assignToNode =
+                [ SynExpr.CreateConst "data" ; SynExpr.createIdent "dataNode" ]
+                |> SynExpr.tuple
+                |> SynExpr.applyFunction (SynExpr.createLongIdent [ "node" ; "Add" ])
+
+            let dataNode =
+                SynExpr.sequential (dataBindings @ [ assignToNode ])
+                |> SynExpr.createLet [ dataNode ]
+
+            let action =
+                [
+                    yield typeLine
+                    if not dataBindings.IsEmpty then
+                        yield dataNode
+                ]
+                |> SynExpr.sequential
+
+            SynMatchClause.create pattern action
+        )
+        |> SynExpr.createMatch (SynExpr.createIdent' inputArg)
+        |> scaffolding spec typeName inputArg
+
+    let createModule
         (namespaceId : LongIdent)
         (opens : SynOpenDeclTarget list)
         (spec : JsonSerializeOutputSpec)
@@ -415,60 +323,63 @@ module internal JsonSerializeGenerator =
         let (SynTypeDefn (synComponentInfo, synTypeDefnRepr, _members, _implicitCtor, _, _)) =
             typeDefn
 
-        let (SynComponentInfo (_attributes, _typeParams, _constraints, recordId, _, _preferPostfix, _access, _)) =
+        let (SynComponentInfo (_attributes, _typeParams, _constraints, ident, _, _preferPostfix, access, _)) =
             synComponentInfo
 
-        match synTypeDefnRepr with
+        let attributes =
-        | SynTypeDefnRepr.Simple (SynTypeDefnSimpleRepr.Record (_accessibility, recordFields, _recordRange), _) ->
+            if spec.ExtensionMethods then
+                [ SynAttribute.autoOpen ]
+            else
+                [ SynAttribute.requireQualifiedAccess ; SynAttribute.compilationRepresentation ]
 
-            let decls = [ createMaker spec recordId recordFields ]
+        let xmlDoc =
+            let fullyQualified = ident |> Seq.map (fun i -> i.idText) |> String.concat "."
 
-            let attributes =
+            let description =
                 if spec.ExtensionMethods then
-                    [ SynAttributeList.Create SynAttribute.autoOpen ]
+                    "extension members"
                 else
-                    [
+                    "methods"
-                        SynAttributeList.Create (SynAttribute.RequireQualifiedAccess ())
-                        SynAttributeList.Create SynAttribute.compilationRepresentation
-                    ]
 
-            let xmlDoc =
+            $"Module containing JSON serializing %s{description} for the %s{fullyQualified} type"
-                let fullyQualified = recordId |> Seq.map (fun i -> i.idText) |> String.concat "."
+            |> PreXmlDoc.create
 
-                let description =
+        let moduleName =
-                    if spec.ExtensionMethods then
+            if spec.ExtensionMethods then
-                        "extension members"
+                match ident with
-                    else
+                | [] -> failwith "unexpectedly got an empty identifier for type name"
-                        "methods"
+                | ident ->
+                    let expanded =
+                        List.last ident
+                        |> fun i -> i.idText
+                        |> fun s -> s + "JsonSerializeExtension"
+                        |> Ident.create
 
-                $" Module containing JSON serializing %s{description} for the %s{fullyQualified} type"
+                    List.take (List.length ident - 1) ident @ [ expanded ]
-                |> PreXmlDoc.Create
+            else
+                ident
 
-            let moduleName =
+        let info =
-                if spec.ExtensionMethods then
+            SynComponentInfo.createLong moduleName
-                    match recordId with
+            |> SynComponentInfo.addAttributes attributes
-                    | [] -> failwith "unexpectedly got an empty identifier for record name"
+            |> SynComponentInfo.setAccessibility access
-                    | recordId ->
+            |> SynComponentInfo.withDocString xmlDoc
-                        let expanded =
-                            List.last recordId
-                            |> fun i -> i.idText
-                            |> fun s -> s + "JsonSerializeExtension"
-                            |> Ident.Create
 
-                        List.take (List.length recordId - 1) recordId @ [ expanded ]
+        let decls =
-                else
+            match synTypeDefnRepr with
-                    recordId
+            | SynTypeDefnRepr.Simple (SynTypeDefnSimpleRepr.Record (_accessibility, recordFields, _range), _) ->
+                [ recordModule spec ident recordFields ]
+            | SynTypeDefnRepr.Simple (SynTypeDefnSimpleRepr.Union (_accessibility, unionFields, _range), _) ->
+                [ unionModule spec ident unionFields ]
+            | _ -> failwithf "Only record types currently supported."
 
-            let info =
+        [
-                SynComponentInfo.Create (moduleName, attributes = attributes, xmldoc = xmlDoc)
+            yield! opens |> List.map SynModuleDecl.openAny
+            yield SynModuleDecl.nestedModule info decls
+        ]
+        |> SynModuleOrNamespace.createNamespace namespaceId
 
-            let mdl = SynModuleDecl.CreateNestedModule (info, decls)
+open Myriad.Core
-
-            SynModuleOrNamespace.CreateNamespace (
-                namespaceId,
-                decls = (opens |> List.map SynModuleDecl.CreateOpen) @ [ mdl ]
-            )
-        | _ -> failwithf "Not a record type"
 
 /// Myriad generator that provides a method (possibly an extension method) for a record type,
 /// containing a JSON serialization function.
@@ -482,10 +393,20 @@ type JsonSerializeGenerator () =
             let ast, _ =
                 Ast.fromFilename context.InputFilename |> Async.RunSynchronously |> Array.head
 
-            let records = Ast.extractRecords ast
+            let recordsAndUnions =
+                Ast.extractTypeDefn ast
+                |> List.map (fun (name, defns) ->
+                    defns
+                    |> List.choose (fun defn ->
+                        if Ast.isRecord defn then Some defn
+                        elif Ast.isDu defn then Some defn
+                        else None
+                    )
+                    |> fun defns -> name, defns
+                )
 
-            let namespaceAndRecords =
+            let namespaceAndTypes =
-                records
+                recordsAndUnions
                 |> List.choose (fun (ns, types) ->
                     types
                     |> List.choose (fun typeDef ->
@@ -515,13 +436,10 @@ type JsonSerializeGenerator () =
             let opens = AstHelper.extractOpens ast
 
             let modules =
-                namespaceAndRecords
+                namespaceAndTypes
-                |> List.collect (fun (ns, records) ->
+                |> List.collect (fun (ns, types) ->
-                    records
+                    types
-                    |> List.map (fun (record, spec) ->
+                    |> List.map (fun (ty, spec) -> JsonSerializeGenerator.createModule ns opens spec ty)
-                        let recordModule = JsonSerializeGenerator.createRecordModule ns opens spec record
-                        recordModule
-                    )
                 )
 
             Output.Ast modules

WoofWare.Myriad.Plugins/Measure.fs

@@ -0,0 +1,24 @@
+namespace WoofWare.Myriad.Plugins
+
+open Fantomas.FCS.Syntax
+
+[<RequireQualifiedAccess>]
+module internal Measure =
+
+    let getLanguagePrimitivesMeasure (typeName : LongIdent) : SynExpr =
+        match typeName |> List.map _.idText with
+        | [ "System" ; "Single" ] -> [ "LanguagePrimitives" ; "Float32WithMeasure" ]
+        | [ "System" ; "Double" ] -> [ "LanguagePrimitives" ; "FloatWithMeasure" ]
+        | [ "System" ; "Byte" ] -> [ "LanguagePrimitives" ; "ByteWithMeasure" ]
+        | [ "System" ; "SByte" ] -> [ "LanguagePrimitives" ; "SByteWithMeasure" ]
+        | [ "System" ; "Int16" ] -> [ "LanguagePrimitives" ; "Int16WithMeasure" ]
+        | [ "System" ; "Int32" ] -> [ "LanguagePrimitives" ; "Int32WithMeasure" ]
+        | [ "System" ; "Int64" ] -> [ "LanguagePrimitives" ; "Int64WithMeasure" ]
+        | [ "System" ; "UInt16" ] -> [ "LanguagePrimitives" ; "UInt16WithMeasure" ]
+        | [ "System" ; "UInt32" ] -> [ "LanguagePrimitives" ; "UInt32WithMeasure" ]
+        | [ "System" ; "UInt64" ] -> [ "LanguagePrimitives" ; "UInt64WithMeasure" ]
+        | l ->
+            let l = String.concat "." l
+            failwith $"unrecognised type for measure: %s{l}"
+
+        |> SynExpr.createLongIdent

WoofWare.Myriad.Plugins/Primitives.fs

@@ -0,0 +1,30 @@
+namespace WoofWare.Myriad.Plugins
+
+open Fantomas.FCS.Syntax
+open Fantomas.FCS.Text.Range
+
+[<RequireQualifiedAccess>]
+module internal Primitives =
+    /// Given e.g. "byte", returns "System.Byte".
+    let qualifyType (typeName : string) : LongIdent option =
+        match typeName with
+        | "float32"
+        | "single" -> [ "System" ; "Single" ] |> Some
+        | "float"
+        | "double" -> [ "System" ; "Double" ] |> Some
+        | "byte"
+        | "uint8" -> [ "System" ; "Byte" ] |> Some
+        | "sbyte"
+        | "int8" -> [ "System" ; "SByte" ] |> Some
+        | "int16" -> [ "System" ; "Int16" ] |> Some
+        | "int"
+        | "int32" -> [ "System" ; "Int32" ] |> Some
+        | "int64" -> [ "System" ; "Int64" ] |> Some
+        | "uint16" -> [ "System" ; "UInt16" ] |> Some
+        | "uint"
+        | "uint32" -> [ "System" ; "UInt32" ] |> Some
+        | "uint64" -> [ "System" ; "UInt64" ] |> Some
+        | "char" -> [ "System" ; "Char" ] |> Some
+        | "decimal" -> [ "System" ; "Decimal" ] |> Some
+        | _ -> None
+        |> Option.map (List.map (fun i -> (Ident (i, range0))))

WoofWare.Myriad.Plugins/RemoveOptionsGenerator.fs

@@ -1,14 +1,11 @@
 namespace WoofWare.Myriad.Plugins
 
 open Fantomas.FCS.Syntax
-open Fantomas.FCS.SyntaxTrivia
 open Fantomas.FCS.Xml
-open Myriad.Core
 
 [<RequireQualifiedAccess>]
 module internal RemoveOptionsGenerator =
     open Fantomas.FCS.Text.Range
-    open Myriad.Core.Ast
 
     let private removeOption (s : SynField) : SynField =
         let (SynField.SynField (synAttributeLists,
@@ -47,7 +44,7 @@ module internal RemoveOptionsGenerator =
         (fields : SynField list)
         =
         let fields : SynField list = fields |> List.map removeOption
-        let name = Ident.Create "Short"
+        let name = Ident.create "Short"
 
         let record =
             {
@@ -63,94 +60,51 @@ module internal RemoveOptionsGenerator =
 
         SynModuleDecl.Types ([ typeDecl ], range0)
 
-    let createMaker (withOptionsType : LongIdent) (withoutOptionsType : LongIdent) (fields : SynField list) =
+    let createMaker (withOptionsType : LongIdent) (withoutOptionsType : LongIdent) (fields : SynFieldData<Ident> list) =
-        let xmlDoc = PreXmlDoc.Create " Remove the optional members of the input."
+        let xmlDoc = PreXmlDoc.create "Remove the optional members of the input."
 
-        let returnInfo =
+        let inputArg = Ident.create "input"
-            SynBindingReturnInfo.Create (SynType.LongIdent (SynLongIdent.CreateFromLongIdent withOptionsType))
+        let functionName = Ident.create "shorten"
-
-        let inputArg = Ident.Create "input"
-        let functionName = Ident.Create "shorten"
-
-        let inputVal =
-            SynValData.SynValData (
-                None,
-                SynValInfo.SynValInfo ([ [ SynArgInfo.CreateId functionName ] ], SynArgInfo.Empty),
-                Some inputArg
-            )
 
         let body =
             fields
-            |> List.map (fun (SynField (_, _, id, fieldType, _, _, _, _, _)) ->
+            |> List.map (fun fieldData ->
-                let id =
-                    match id with
-                    | None -> failwith "Expected record field to have an identifying name"
-                    | Some id -> id
-
                 let accessor =
-                    SynExpr.LongIdent (false, SynLongIdent ([ inputArg ; id ], [ range0 ], []), None, range0)
+                    SynExpr.LongIdent (
+                        false,
+                        SynLongIdent ([ inputArg ; fieldData.Ident ], [ range0 ], []),
+                        None,
+                        range0
+                    )
 
                 let body =
-                    match fieldType with
+                    match fieldData.Type with
                     | OptionType _ ->
-                        SynExpr.CreateApp (
+                        accessor
-                            SynExpr.CreateAppInfix (
+                        |> SynExpr.pipeThroughFunction (
-                                SynExpr.LongIdent (
+                            SynExpr.applyFunction
-                                    false,
+                                (SynExpr.createLongIdent [ "Option" ; "defaultWith" ])
-                                    SynLongIdent.SynLongIdent (
+                                (SynExpr.createLongIdent' (
-                                        [ Ident.Create "op_PipeRight" ],
+                                    withoutOptionsType
-                                        [],
+                                    @ [ Ident.create (sprintf "Default%s" fieldData.Ident.idText) ]
-                                        [ Some (IdentTrivia.OriginalNotation "|>") ]
+                                ))
-                                    ),
-                                    None,
-                                    range0
-                                ),
-                                accessor
-                            ),
-                            SynExpr.CreateApp (
-                                SynExpr.CreateLongIdent (SynLongIdent.CreateString "Option.defaultWith"),
-                                SynExpr.CreateLongIdent (
-                                    SynLongIdent.CreateFromLongIdent (
-                                        withoutOptionsType @ [ Ident.Create (sprintf "Default%s" id.idText) ]
-                                    )
-                                )
-                            )
                         )
                     | _ -> accessor
 
-                (SynLongIdent.CreateFromLongIdent [ id ], true), Some body
+                (SynLongIdent.createI fieldData.Ident, true), Some body
             )
             |> AstHelper.instantiateRecord
 
-        let pattern =
+        SynBinding.basic
-            SynPat.LongIdent (
+            [ functionName ]
-                SynLongIdent.CreateFromLongIdent [ functionName ],
+            [
-                None,
+                SynPat.named inputArg.idText
-                None,
+                |> SynPat.annotateType (SynType.LongIdent (SynLongIdent.create withoutOptionsType))
-                SynArgPats.Pats
+            ]
-                    [
+            body
-                        SynPat.CreateTyped (
+        |> SynBinding.withXmlDoc xmlDoc
-                            SynPat.CreateNamed inputArg,
+        |> SynBinding.withReturnAnnotation (SynType.LongIdent (SynLongIdent.create withOptionsType))
-                            SynType.LongIdent (SynLongIdent.CreateFromLongIdent withoutOptionsType)
+        |> SynModuleDecl.createLet
-                        )
-                        |> SynPat.CreateParen
-                    ],
-                None,
-                range0
-            )
-
-        let binding =
-            SynBinding.Let (
-                isInline = false,
-                isMutable = false,
-                xmldoc = xmlDoc,
-                returnInfo = returnInfo,
-                expr = body,
-                valData = inputVal,
-                pattern = pattern
-            )
-
-        SynModuleDecl.CreateLet [ binding ]
 
     let createRecordModule (namespaceId : LongIdent) (typeDefn : SynTypeDefn) =
         let (SynTypeDefn (synComponentInfo, synTypeDefnRepr, _members, _implicitCtor, _, _)) =
@@ -160,35 +114,35 @@ module internal RemoveOptionsGenerator =
             synComponentInfo
 
         match synTypeDefnRepr with
-        | SynTypeDefnRepr.Simple (SynTypeDefnSimpleRepr.Record (accessibility, recordFields, _recordRange), _) ->
+        | SynTypeDefnRepr.Simple (SynTypeDefnSimpleRepr.Record (accessibility, fields, _range), _) ->
+            let fieldData = fields |> List.map SynField.extractWithIdent
 
             let decls =
                 [
-                    createType (Some doc) accessibility typeParams recordFields
+                    createType (Some doc) accessibility typeParams fields
-                    createMaker [ Ident.Create "Short" ] recordId recordFields
+                    createMaker [ Ident.create "Short" ] recordId fieldData
-                ]
-
-            let attributes =
-                [
-                    SynAttributeList.Create (SynAttribute.RequireQualifiedAccess ())
-                    SynAttributeList.Create SynAttribute.compilationRepresentation
                 ]
 
             let xmlDoc =
                 recordId
                 |> Seq.map (fun i -> i.idText)
                 |> String.concat "."
-                |> sprintf " Module containing an option-truncated version of the %s type"
+                |> sprintf "Module containing an option-truncated version of the %s type"
-                |> PreXmlDoc.Create
+                |> PreXmlDoc.create
 
             let info =
-                SynComponentInfo.Create (recordId, attributes = attributes, xmldoc = xmlDoc)
+                SynComponentInfo.createLong recordId
+                |> SynComponentInfo.withDocString xmlDoc
+                |> SynComponentInfo.addAttributes [ SynAttribute.compilationRepresentation ]
+                |> SynComponentInfo.addAttributes [ SynAttribute.requireQualifiedAccess ]
 
-            let mdl = SynModuleDecl.CreateNestedModule (info, decls)
+            SynModuleDecl.nestedModule info decls
-
+            |> List.singleton
-            SynModuleOrNamespace.CreateNamespace (namespaceId, decls = [ mdl ])
+            |> SynModuleOrNamespace.createNamespace namespaceId
         | _ -> failwithf "Not a record type"
 
+open Myriad.Core
+
 /// Myriad generator that stamps out a record with option types stripped
 /// from the fields at the top level.
 [<MyriadGenerator("remove-options")>]

WoofWare.Myriad.Plugins/SynAttribute.fs

@@ -1,31 +0,0 @@
-namespace WoofWare.Myriad.Plugins
-
-open Fantomas.FCS.Syntax
-open Fantomas.FCS.Text.Range
-open Myriad.Core
-
-[<RequireQualifiedAccess>]
-module internal SynAttribute =
-    let internal compilationRepresentation : SynAttribute =
-        {
-            TypeName = SynLongIdent.CreateString "CompilationRepresentation"
-            ArgExpr =
-                SynExpr.CreateLongIdent (
-                    false,
-                    SynLongIdent.Create [ "CompilationRepresentationFlags" ; "ModuleSuffix" ],
-                    None
-                )
-                |> SynExpr.CreateParen
-            Target = None
-            AppliesToGetterAndSetter = false
-            Range = range0
-        }
-
-    let internal autoOpen : SynAttribute =
-        {
-            TypeName = SynLongIdent.CreateString "AutoOpen"
-            ArgExpr = SynExpr.CreateConst SynConst.Unit
-            Target = None
-            AppliesToGetterAndSetter = false
-            Range = range0
-        }

WoofWare.Myriad.Plugins/SynExpr.fs

@@ -1,325 +0,0 @@
-namespace WoofWare.Myriad.Plugins
-
-open Fantomas.FCS.Syntax
-open Fantomas.FCS.SyntaxTrivia
-open Myriad.Core
-open Myriad.Core.Ast
-open Fantomas.FCS.Text.Range
-
-type internal CompExprBinding =
-    | LetBang of varName : string * rhs : SynExpr
-    | Let of varName : string * rhs : SynExpr
-    | Use of varName : string * rhs : SynExpr
-    | Do of body : SynExpr
-
-[<RequireQualifiedAccess>]
-module internal SynExpr =
-
-    /// {expr} |> {func}
-    let pipeThroughFunction (func : SynExpr) (expr : SynExpr) : SynExpr =
-        SynExpr.CreateApp (
-            SynExpr.CreateAppInfix (
-                SynExpr.CreateLongIdent (
-                    SynLongIdent.SynLongIdent (
-                        [ Ident.Create "op_PipeRight" ],
-                        [],
-                        [ Some (IdentTrivia.OriginalNotation "|>") ]
-                    )
-                ),
-                expr
-            ),
-            func
-        )
-
-    /// if {cond} then {trueBranch} else {falseBranch}
-    /// Note that this function puts the trueBranch last, for pipelining convenience:
-    /// we assume that the `else` branch is more like an error case and is less interesting.
-    let ifThenElse (cond : SynExpr) (falseBranch : SynExpr) (trueBranch : SynExpr) : SynExpr =
-        SynExpr.IfThenElse (
-            cond,
-            trueBranch,
-            Some falseBranch,
-            DebugPointAtBinding.Yes range0,
-            false,
-            range0,
-            {
-                IfKeyword = range0
-                IsElif = false
-                ThenKeyword = range0
-                ElseKeyword = Some range0
-                IfToThenRange = range0
-            }
-        )
-
-    /// try {body} with | {exc} as exc -> {handler}
-    let pipeThroughTryWith (exc : SynPat) (handler : SynExpr) (body : SynExpr) : SynExpr =
-        let clause =
-            SynMatchClause.Create (SynPat.As (exc, SynPat.CreateNamed (Ident.Create "exc"), range0), None, handler)
-
-        SynExpr.TryWith (
-            body,
-            [ clause ],
-            range0,
-            DebugPointAtTry.Yes range0,
-            DebugPointAtWith.Yes range0,
-            {
-                TryKeyword = range0
-                TryToWithRange = range0
-                WithKeyword = range0
-                WithToEndRange = range0
-            }
-        )
-
-    /// {a} = {b}
-    let equals (a : SynExpr) (b : SynExpr) =
-        SynExpr.CreateApp (
-            SynExpr.CreateAppInfix (
-                SynExpr.CreateLongIdent (
-                    SynLongIdent.SynLongIdent (
-                        Ident.CreateLong "op_Equality",
-                        [],
-                        [ Some (IdentTrivia.OriginalNotation "=") ]
-                    )
-                ),
-                a
-            ),
-            b
-        )
-
-    /// {a} + {b}
-    let plus (a : SynExpr) (b : SynExpr) =
-        SynExpr.CreateApp (
-            SynExpr.CreateAppInfix (
-                SynExpr.CreateLongIdent (
-                    SynLongIdent.SynLongIdent (
-                        Ident.CreateLong "op_Addition",
-                        [],
-                        [ Some (IdentTrivia.OriginalNotation "+") ]
-                    )
-                ),
-                a
-            ),
-            b
-        )
-
-    let rec stripOptionalParen (expr : SynExpr) : SynExpr =
-        match expr with
-        | SynExpr.Paren (expr, _, _, _) -> stripOptionalParen expr
-        | expr -> expr
-
-    /// {obj}.{meth} {arg}
-    let callMethodArg (meth : string) (arg : SynExpr) (obj : SynExpr) : SynExpr =
-        SynExpr.CreateApp (
-            SynExpr.DotGet (
-                obj,
-                range0,
-                SynLongIdent.SynLongIdent (id = [ Ident.Create meth ], dotRanges = [], trivia = [ None ]),
-                range0
-            ),
-            arg
-        )
-
-    /// {obj}.{meth}()
-    let callMethod (meth : string) (obj : SynExpr) : SynExpr =
-        callMethodArg meth (SynExpr.CreateConst SynConst.Unit) obj
-
-    let callGenericMethod (meth : string) (ty : LongIdent) (obj : SynExpr) : SynExpr =
-        SynExpr.CreateApp (
-            SynExpr.TypeApp (
-                SynExpr.DotGet (obj, range0, SynLongIdent.Create [ meth ], range0),
-                range0,
-                [ SynType.LongIdent (SynLongIdent.CreateFromLongIdent ty) ],
-                [],
-                Some range0,
-                range0,
-                range0
-            ),
-            SynExpr.CreateConst SynConst.Unit
-        )
-
-    /// {obj}.{meth}<ty>()
-    let callGenericMethod' (meth : string) (ty : string) (obj : SynExpr) : SynExpr =
-        SynExpr.CreateApp (
-            SynExpr.TypeApp (
-                SynExpr.DotGet (obj, range0, SynLongIdent.Create [ meth ], range0),
-                range0,
-                [ SynType.CreateLongIdent ty ],
-                [],
-                Some range0,
-                range0,
-                range0
-            ),
-            SynExpr.CreateConst SynConst.Unit
-        )
-
-    let index (property : SynExpr) (obj : SynExpr) : SynExpr =
-        SynExpr.DotIndexedGet (obj, property, range0, range0)
-
-    /// (fun {varName} -> {body})
-    let createLambda (varName : string) (body : SynExpr) : SynExpr =
-        let parsedDataPat = [ SynPat.CreateNamed (Ident.Create varName) ]
-
-        SynExpr.Lambda (
-            false,
-            false,
-            SynSimplePats.Create [ SynSimplePat.CreateId (Ident.Create varName) ],
-            body,
-            Some (parsedDataPat, body),
-            range0,
-            {
-                ArrowRange = Some range0
-            }
-        )
-        |> SynExpr.CreateParen
-
-    let reraise : SynExpr =
-        SynExpr.CreateApp (SynExpr.CreateIdent (Ident.Create "reraise"), SynExpr.CreateConst SynConst.Unit)
-
-    /// {body} |> fun a -> Async.StartAsTask (a, ?cancellationToken=ct)
-    let startAsTask (ct : SynLongIdent) (body : SynExpr) =
-        let lambda =
-            SynExpr.CreateApp (
-                SynExpr.CreateLongIdent (SynLongIdent.Create [ "Async" ; "StartAsTask" ]),
-                SynExpr.CreateParenedTuple
-                    [
-                        SynExpr.CreateLongIdent (SynLongIdent.CreateString "a")
-                        equals
-                            (SynExpr.LongIdent (true, SynLongIdent.CreateString "cancellationToken", None, range0))
-                            (SynExpr.CreateLongIdent ct)
-                    ]
-            )
-            |> createLambda "a"
-
-        pipeThroughFunction lambda body
-
-    /// {compExpr} { {lets} ; return {ret} }
-    let createCompExpr (compExpr : string) (retBody : SynExpr) (lets : CompExprBinding list) : SynExpr =
-        let retStatement = SynExpr.YieldOrReturn ((false, true), retBody, range0)
-
-        let contents : SynExpr =
-            (retStatement, List.rev lets)
-            ||> List.fold (fun state binding ->
-                match binding with
-                | LetBang (lhs, rhs) ->
-                    SynExpr.LetOrUseBang (
-                        DebugPointAtBinding.Yes range0,
-                        false,
-                        true,
-                        SynPat.CreateNamed (Ident.Create lhs),
-                        rhs,
-                        [],
-                        state,
-                        range0,
-                        {
-                            EqualsRange = Some range0
-                        }
-                    )
-                | Let (lhs, rhs) ->
-                    SynExpr.LetOrUse (
-                        false,
-                        false,
-                        [ SynBinding.Let (pattern = SynPat.CreateNamed (Ident.Create lhs), expr = rhs) ],
-                        state,
-                        range0,
-                        {
-                            SynExprLetOrUseTrivia.InKeyword = None
-                        }
-                    )
-                | Use (lhs, rhs) ->
-                    SynExpr.LetOrUse (
-                        false,
-                        true,
-                        [ SynBinding.Let (pattern = SynPat.CreateNamed (Ident.Create lhs), expr = rhs) ],
-                        state,
-                        range0,
-                        {
-                            SynExprLetOrUseTrivia.InKeyword = None
-                        }
-                    )
-                | Do body -> SynExpr.CreateSequential [ SynExpr.Do (body, range0) ; state ]
-            )
-
-        SynExpr.CreateApp (
-            SynExpr.CreateIdent (Ident.Create compExpr),
-            SynExpr.ComputationExpr (false, contents, range0)
-        )
-
-    /// {expr} |> Async.AwaitTask
-    let awaitTask (expr : SynExpr) : SynExpr =
-        expr
-        |> pipeThroughFunction (SynExpr.CreateLongIdent (SynLongIdent.Create [ "Async" ; "AwaitTask" ]))
-
-    /// {ident}.ToString ()
-    /// with special casing for some types like DateTime
-    let toString (ty : SynType) (ident : SynExpr) =
-        match ty with
-        | DateOnly -> ident |> callMethodArg "ToString" (SynExpr.CreateConstString "yyyy-MM-dd")
-        | DateTime ->
-            ident
-            |> callMethodArg "ToString" (SynExpr.CreateConstString "yyyy-MM-ddTHH:mm:ss")
-        | _ -> callMethod "ToString" ident
-
-    let upcast' (ty : SynType) (e : SynExpr) = SynExpr.Upcast (e, ty, range0)
-
-    let synBindingTriviaZero (isMember : bool) =
-        {
-            SynBindingTrivia.EqualsRange = Some range0
-            InlineKeyword = None
-            LeadingKeyword =
-                if isMember then
-                    SynLeadingKeyword.Member range0
-                else
-                    SynLeadingKeyword.Let range0
-        }
-
-    /// {ident} - {rhs}
-    let minus (ident : SynLongIdent) (rhs : SynExpr) : SynExpr =
-        SynExpr.CreateApp (
-            SynExpr.CreateAppInfix (
-                SynExpr.CreateLongIdent (
-                    SynLongIdent.SynLongIdent (
-                        [ Ident.Create "op_Subtraction" ],
-                        [],
-                        [ Some (IdentTrivia.OriginalNotation "-") ]
-                    )
-                ),
-                SynExpr.CreateLongIdent ident
-            ),
-            rhs
-        )
-
-    /// {ident} - {n}
-    let minusN (ident : SynLongIdent) (n : int) : SynExpr =
-        minus ident (SynExpr.CreateConst (SynConst.Int32 n))
-
-    /// {y} > {x}
-    let greaterThan (x : SynExpr) (y : SynExpr) : SynExpr =
-        SynExpr.CreateApp (
-            SynExpr.CreateAppInfix (
-                SynExpr.CreateLongIdent (
-                    SynLongIdent.SynLongIdent (
-                        [ Ident.Create "op_GreaterThan" ],
-                        [],
-                        [ Some (IdentTrivia.OriginalNotation ">") ]
-                    )
-                ),
-                y
-            ),
-            x
-        )
-
-    /// {y} >= {x}
-    let greaterThanOrEqual (x : SynExpr) (y : SynExpr) : SynExpr =
-        SynExpr.CreateApp (
-            SynExpr.CreateAppInfix (
-                SynExpr.CreateLongIdent (
-                    SynLongIdent.SynLongIdent (
-                        [ Ident.Create "op_GreaterThanOrEqual" ],
-                        [],
-                        [ Some (IdentTrivia.OriginalNotation ">=") ]
-                    )
-                ),
-                y
-            ),
-            x
-        )

WoofWare.Myriad.Plugins/SynExpr/CompExpr.fs

@@ -0,0 +1,49 @@
+namespace WoofWare.Myriad.Plugins
+
+open Fantomas.FCS.Syntax
+
+type internal CompExprBinding =
+    | LetBang of varName : string * rhs : SynExpr
+    | Let of varName : string * rhs : SynExpr
+    | Use of varName : string * rhs : SynExpr
+    | Do of body : SynExpr
+
+(*
+Potential API!
+type internal CompExprBindings =
+    private
+        {
+            /// These are stored in reverse.
+            Bindings : CompExprBinding list
+            CompExprName : string
+        }
+
+[<RequireQualifiedAccess>]
+module internal CompExprBindings =
+    let make (name : string) : CompExprBindings =
+        {
+            Bindings = []
+            CompExprName = name
+        }
+
+    let thenDo (body : SynExpr) (bindings : CompExprBindings) =
+        { bindings with
+            Bindings = (Do body :: bindings.Bindings)
+        }
+
+    let thenLet (varName : string) (value : SynExpr) (bindings : CompExprBindings) =
+        { bindings with
+            Bindings = (Let (varName, value) :: bindings.Bindings)
+        }
+
+    let thenLetBang (varName : string) (value : SynExpr) (bindings : CompExprBindings) =
+        { bindings with
+            Bindings = (LetBang (varName, value) :: bindings.Bindings)
+        }
+
+
+    let thenUse (varName : string) (value : SynExpr) (bindings : CompExprBindings) =
+        { bindings with
+            Bindings = (LetBang (varName, value) :: bindings.Bindings)
+        }
+*)

WoofWare.Myriad.Plugins/SynExpr/Ident.fs

@@ -3,12 +3,14 @@ namespace WoofWare.Myriad.Plugins
 open System
 open System.Text
 open Fantomas.FCS.Syntax
-open Myriad.Core
+open Fantomas.FCS.Text.Range
 
 [<RequireQualifiedAccess>]
 module internal Ident =
+    let inline create (s : string) = Ident (s, range0)
+
     let lowerFirstLetter (x : Ident) : Ident =
         let result = StringBuilder x.idText.Length
         result.Append (Char.ToLowerInvariant x.idText.[0]) |> ignore
         result.Append x.idText.[1..] |> ignore
-        Ident.Create ((result : StringBuilder).ToString ())
+        create ((result : StringBuilder).ToString ())

WoofWare.Myriad.Plugins/SynExpr/PreXmlDoc.fs

@@ -0,0 +1,9 @@
+namespace WoofWare.Myriad.Plugins
+
+open Fantomas.FCS.Xml
+open Fantomas.FCS.Text.Range
+
+[<RequireQualifiedAccess>]
+module internal PreXmlDoc =
+    let create (s : string) : PreXmlDoc =
+        PreXmlDoc.Create ([| " " + s |], range0)

WoofWare.Myriad.Plugins/SynExpr/SynArgPats.fs

@@ -0,0 +1,16 @@
+namespace WoofWare.Myriad.Plugins
+
+open Fantomas.FCS.Syntax
+
+[<RequireQualifiedAccess>]
+module internal SynArgPats =
+    let create (caseNames : Ident list) : SynArgPats =
+        match caseNames.Length with
+        | 0 -> SynArgPats.Pats []
+        | 1 -> [ SynPat.named caseNames.[0].idText ] |> SynArgPats.Pats
+        | _ ->
+            caseNames
+            |> List.map (fun i -> SynPat.named i.idText)
+            |> SynPat.tuple
+            |> List.singleton
+            |> SynArgPats.Pats

WoofWare.Myriad.Plugins/SynExpr/SynAttribute.fs

@@ -0,0 +1,36 @@
+namespace WoofWare.Myriad.Plugins
+
+open Fantomas.FCS.Syntax
+open Fantomas.FCS.Text.Range
+
+[<RequireQualifiedAccess>]
+module internal SynAttribute =
+    let internal compilationRepresentation : SynAttribute =
+        {
+            TypeName = SynLongIdent.createS "CompilationRepresentation"
+            ArgExpr =
+                [ "CompilationRepresentationFlags" ; "ModuleSuffix" ]
+                |> SynExpr.createLongIdent
+                |> SynExpr.paren
+            Target = None
+            AppliesToGetterAndSetter = false
+            Range = range0
+        }
+
+    let internal requireQualifiedAccess : SynAttribute =
+        {
+            TypeName = SynLongIdent.createS "RequireQualifiedAccess"
+            ArgExpr = SynExpr.CreateConst ()
+            Target = None
+            AppliesToGetterAndSetter = false
+            Range = range0
+        }
+
+    let internal autoOpen : SynAttribute =
+        {
+            TypeName = SynLongIdent.createS "AutoOpen"
+            ArgExpr = SynExpr.CreateConst ()
+            Target = None
+            AppliesToGetterAndSetter = false
+            Range = range0
+        }

WoofWare.Myriad.Plugins/SynExpr/SynBinding.fs

@@ -0,0 +1,204 @@
+namespace WoofWare.Myriad.Plugins
+
+open Fantomas.FCS.Syntax
+open Fantomas.FCS.SyntaxTrivia
+open Fantomas.FCS.Xml
+open Fantomas.FCS.Text.Range
+
+[<RequireQualifiedAccess>]
+module internal SynBinding =
+
+    let rec private stripParen (pat : SynPat) =
+        match pat with
+        | SynPat.Paren (p, _) -> stripParen p
+        | _ -> pat
+
+    let rec private getName (pat : SynPat) : Ident option =
+        match stripParen pat with
+        | SynPat.Named (SynIdent.SynIdent (name, _), _, _, _) -> Some name
+        | SynPat.Typed (pat, _, _) -> getName pat
+        | SynPat.LongIdent (SynLongIdent.SynLongIdent (longIdent, _, _), _, _, _, _, _) ->
+            match longIdent with
+            | [ x ] -> Some x
+            | _ -> failwithf "got long ident %O ; can only get the name of a long ident with one component" longIdent
+        | _ -> None
+
+    let private getArgInfo (pat : SynPat) : SynArgInfo list =
+        // TODO: this only copes with one layer of tupling
+        match stripParen pat with
+        | SynPat.Tuple (_, pats, _, _) -> pats |> List.map (fun pat -> SynArgInfo.SynArgInfo ([], false, getName pat))
+        | pat -> [ SynArgInfo.SynArgInfo (SynAttributes.Empty, false, getName pat) ]
+
+    let triviaZero (isMember : bool) =
+        {
+            SynBindingTrivia.EqualsRange = Some range0
+            InlineKeyword = None
+            LeadingKeyword =
+                if isMember then
+                    SynLeadingKeyword.Member range0
+                else
+                    SynLeadingKeyword.Let range0
+        }
+
+    let basic (name : LongIdent) (args : SynPat list) (body : SynExpr) : SynBinding =
+        let valInfo : SynValInfo =
+            args
+            |> List.map getArgInfo
+            |> fun x -> SynValInfo.SynValInfo (x, SynArgInfo.SynArgInfo ([], false, None))
+
+        SynBinding.SynBinding (
+            None,
+            SynBindingKind.Normal,
+            false,
+            false,
+            [],
+            PreXmlDoc.Empty,
+            SynValData.SynValData (None, valInfo, None),
+            SynPat.identWithArgs name (SynArgPats.Pats args),
+            None,
+            body,
+            range0,
+            DebugPointAtBinding.Yes range0,
+            triviaZero false
+        )
+
+    let withAccessibility (acc : SynAccess option) (binding : SynBinding) : SynBinding =
+        match binding with
+        | SynBinding (_, kind, inl, mut, attrs, xml, valData, headPat, returnInfo, expr, range, debugPoint, trivia) ->
+            let headPat =
+                match headPat with
+                | SynPat.LongIdent (ident, extra, options, argPats, _, range) ->
+                    SynPat.LongIdent (ident, extra, options, argPats, acc, range)
+                | _ -> failwithf "unrecognised head pattern: %O" headPat
+
+            SynBinding (acc, kind, inl, mut, attrs, xml, valData, headPat, returnInfo, expr, range, debugPoint, trivia)
+
+    let withXmlDoc (doc : PreXmlDoc) (binding : SynBinding) : SynBinding =
+        match binding with
+        | SynBinding (acc, kind, inl, mut, attrs, _, valData, headPat, returnInfo, expr, range, debugPoint, trivia) ->
+            SynBinding (acc, kind, inl, mut, attrs, doc, valData, headPat, returnInfo, expr, range, debugPoint, trivia)
+
+    let withReturnAnnotation (ty : SynType) (binding : SynBinding) : SynBinding =
+        match binding with
+        | SynBinding (acc, kind, inl, mut, attrs, doc, valData, headPat, _, expr, range, debugPoint, trivia) ->
+            let retInfo =
+                SynBindingReturnInfo.SynBindingReturnInfo (
+                    ty,
+                    range0,
+                    [],
+                    {
+                        ColonRange = Some range0
+                    }
+                )
+
+            SynBinding (
+                acc,
+                kind,
+                inl,
+                mut,
+                attrs,
+                doc,
+                valData,
+                headPat,
+                Some retInfo,
+                expr,
+                range,
+                debugPoint,
+                trivia
+            )
+
+    let inline makeInline (binding : SynBinding) : SynBinding =
+        match binding with
+        | SynBinding (acc, kind, _, mut, attrs, doc, valData, headPat, ret, expr, range, debugPoint, trivia) ->
+            SynBinding (
+                acc,
+                kind,
+                true,
+                mut,
+                attrs,
+                doc,
+                valData,
+                headPat,
+                ret,
+                expr,
+                range,
+                debugPoint,
+                { trivia with
+                    InlineKeyword = Some range0
+                }
+            )
+
+    let inline makeNotInline (binding : SynBinding) : SynBinding =
+        match binding with
+        | SynBinding (acc, kind, _, mut, attrs, doc, valData, headPat, ret, expr, range, debugPoint, trivia) ->
+            SynBinding (
+                acc,
+                kind,
+                false,
+                mut,
+                attrs,
+                doc,
+                valData,
+                headPat,
+                ret,
+                expr,
+                range,
+                debugPoint,
+                { trivia with
+                    InlineKeyword = None
+                }
+            )
+
+    let inline setInline (isInline : bool) (binding : SynBinding) : SynBinding =
+        if isInline then
+            makeInline binding
+        else
+            makeNotInline binding
+
+    let makeStaticMember (binding : SynBinding) : SynBinding =
+        let memberFlags =
+            {
+                SynMemberFlags.IsInstance = false
+                SynMemberFlags.IsDispatchSlot = false
+                SynMemberFlags.IsOverrideOrExplicitImpl = false
+                SynMemberFlags.IsFinal = false
+                SynMemberFlags.GetterOrSetterIsCompilerGenerated = false
+                SynMemberFlags.MemberKind = SynMemberKind.Member
+            }
+
+        match binding with
+        | SynBinding (acc, kind, inl, mut, attrs, doc, valData, headPat, ret, expr, range, debugPoint, trivia) ->
+            let valData =
+                match valData with
+                | SynValData.SynValData (_, valInfo, _) -> SynValData.SynValData (Some memberFlags, valInfo, None)
+
+            let trivia =
+                { trivia with
+                    LeadingKeyword = SynLeadingKeyword.StaticMember (range0, range0)
+                }
+
+            SynBinding (acc, kind, inl, mut, attrs, doc, valData, headPat, ret, expr, range, debugPoint, trivia)
+
+    let makeInstanceMember (binding : SynBinding) : SynBinding =
+        let memberFlags =
+            {
+                SynMemberFlags.IsInstance = true
+                SynMemberFlags.IsDispatchSlot = false
+                SynMemberFlags.IsOverrideOrExplicitImpl = true
+                SynMemberFlags.IsFinal = false
+                SynMemberFlags.GetterOrSetterIsCompilerGenerated = false
+                SynMemberFlags.MemberKind = SynMemberKind.Member
+            }
+
+        match binding with
+        | SynBinding (acc, kind, inl, mut, attrs, doc, valData, headPat, ret, expr, range, debugPoint, trivia) ->
+            let valData =
+                match valData with
+                | SynValData.SynValData (_, valInfo, _) -> SynValData.SynValData (Some memberFlags, valInfo, None)
+
+            let trivia =
+                { trivia with
+                    LeadingKeyword = SynLeadingKeyword.Member range0
+                }
+
+            SynBinding (acc, kind, inl, mut, attrs, doc, valData, headPat, ret, expr, range, debugPoint, trivia)

WoofWare.Myriad.Plugins/SynExpr/SynComponentInfo.fs

@@ -0,0 +1,50 @@
+namespace WoofWare.Myriad.Plugins
+
+open Fantomas.FCS.Syntax
+open Fantomas.FCS.Xml
+open Fantomas.FCS.Text.Range
+
+[<RequireQualifiedAccess>]
+module internal SynComponentInfo =
+    let inline createLong (name : LongIdent) =
+        SynComponentInfo.SynComponentInfo ([], None, [], name, PreXmlDoc.Empty, false, None, range0)
+
+    let inline create (name : Ident) = createLong [ name ]
+
+    let inline withDocString (doc : PreXmlDoc) (i : SynComponentInfo) : SynComponentInfo =
+        match i with
+        | SynComponentInfo.SynComponentInfo (attrs, typars, constraints, name, _, postfix, access, range) ->
+            SynComponentInfo (attrs, typars, constraints, name, doc, postfix, access, range)
+
+    let inline setGenerics (typars : SynTyparDecls option) (i : SynComponentInfo) : SynComponentInfo =
+        match i with
+        | SynComponentInfo.SynComponentInfo (attrs, _, constraints, name, doc, postfix, access, range) ->
+            SynComponentInfo (attrs, typars, constraints, name, doc, postfix, access, range)
+
+    let inline withGenerics (typars : SynTyparDecl list) (i : SynComponentInfo) : SynComponentInfo =
+        let inner =
+            if typars.IsEmpty then
+                None
+            else
+                Some (SynTyparDecls.PostfixList (typars, [], range0))
+
+        setGenerics inner i
+
+    let inline setAccessibility (acc : SynAccess option) (i : SynComponentInfo) : SynComponentInfo =
+        match i with
+        | SynComponentInfo.SynComponentInfo (attrs, typars, constraints, name, doc, postfix, _, range) ->
+            SynComponentInfo.SynComponentInfo (attrs, typars, constraints, name, doc, postfix, acc, range)
+
+    let inline withAccessibility (acc : SynAccess) (i : SynComponentInfo) : SynComponentInfo =
+        setAccessibility (Some acc) i
+
+    let inline addAttributes (attrs : SynAttribute list) (i : SynComponentInfo) : SynComponentInfo =
+        match i with
+        | SynComponentInfo.SynComponentInfo (oldAttrs, typars, constraints, name, doc, postfix, acc, range) ->
+            let attrs =
+                {
+                    SynAttributeList.Attributes = attrs
+                    SynAttributeList.Range = range0
+                }
+
+            SynComponentInfo.SynComponentInfo ((attrs :: oldAttrs), typars, constraints, name, doc, postfix, acc, range)

WoofWare.Myriad.Plugins/SynExpr/SynExpr.fs

@@ -0,0 +1,314 @@
+namespace WoofWare.Myriad.Plugins
+
+open Fantomas.FCS.Syntax
+open Fantomas.FCS.SyntaxTrivia
+open Myriad.Core
+open Fantomas.FCS.Text.Range
+
+[<AutoOpen>]
+module internal SynExprExtensions =
+    type SynExpr with
+        static member CreateConst (s : string) : SynExpr =
+            SynExpr.Const (SynConst.String (s, SynStringKind.Regular, range0), range0)
+
+        static member CreateConst () : SynExpr = SynExpr.Const (SynConst.Unit, range0)
+
+        static member CreateConst (i : int32) : SynExpr =
+            SynExpr.Const (SynConst.Int32 i, range0)
+
+[<RequireQualifiedAccess>]
+module internal SynExpr =
+
+    /// {f} {x}
+    let applyFunction (f : SynExpr) (x : SynExpr) : SynExpr = SynExpr.CreateApp (f, x)
+
+    /// {f} {x}
+    let inline applyTo (x : SynExpr) (f : SynExpr) : SynExpr = applyFunction f x
+
+    /// {expr} |> {func}
+    let pipeThroughFunction (func : SynExpr) (expr : SynExpr) : SynExpr =
+        SynExpr.CreateAppInfix (SynExpr.CreateLongIdent SynLongIdent.pipe, expr)
+        |> applyTo func
+
+    /// if {cond} then {trueBranch} else {falseBranch}
+    /// Note that this function puts the trueBranch last, for pipelining convenience:
+    /// we assume that the `else` branch is more like an error case and is less interesting.
+    let ifThenElse (cond : SynExpr) (falseBranch : SynExpr) (trueBranch : SynExpr) : SynExpr =
+        SynExpr.IfThenElse (
+            cond,
+            trueBranch,
+            Some falseBranch,
+            DebugPointAtBinding.Yes range0,
+            false,
+            range0,
+            {
+                IfKeyword = range0
+                IsElif = false
+                ThenKeyword = range0
+                ElseKeyword = Some range0
+                IfToThenRange = range0
+            }
+        )
+
+    /// try {body} with | {exc} as exc -> {handler}
+    let pipeThroughTryWith (exc : SynPat) (handler : SynExpr) (body : SynExpr) : SynExpr =
+        let clause =
+            SynMatchClause.create (SynPat.As (exc, SynPat.named "exc", range0)) handler
+
+        SynExpr.TryWith (
+            body,
+            [ clause ],
+            range0,
+            DebugPointAtTry.Yes range0,
+            DebugPointAtWith.Yes range0,
+            {
+                TryKeyword = range0
+                TryToWithRange = range0
+                WithKeyword = range0
+                WithToEndRange = range0
+            }
+        )
+
+    /// {a} = {b}
+    let equals (a : SynExpr) (b : SynExpr) =
+        SynExpr.CreateAppInfix (SynExpr.CreateLongIdent SynLongIdent.eq, a) |> applyTo b
+
+    /// {a} + {b}
+    let plus (a : SynExpr) (b : SynExpr) =
+        SynExpr.CreateAppInfix (
+            SynExpr.CreateLongIdent (
+                SynLongIdent.SynLongIdent (
+                    Ident.CreateLong "op_Addition",
+                    [],
+                    [ Some (IdentTrivia.OriginalNotation "+") ]
+                )
+            ),
+            a
+        )
+        |> applyTo b
+
+    /// {a} * {b}
+    let times (a : SynExpr) (b : SynExpr) =
+        SynExpr.CreateAppInfix (
+            SynExpr.CreateLongIdent (
+                SynLongIdent.SynLongIdent (
+                    Ident.CreateLong "op_Multiply",
+                    [],
+                    [ Some (IdentTrivia.OriginalNotation "*") ]
+                )
+            ),
+            a
+        )
+        |> applyTo b
+
+    let rec stripOptionalParen (expr : SynExpr) : SynExpr =
+        match expr with
+        | SynExpr.Paren (expr, _, _, _) -> stripOptionalParen expr
+        | expr -> expr
+
+    /// {obj}.{meth} {arg}
+    let callMethodArg (meth : string) (arg : SynExpr) (obj : SynExpr) : SynExpr =
+        SynExpr.DotGet (
+            obj,
+            range0,
+            SynLongIdent.SynLongIdent (id = [ Ident.create meth ], dotRanges = [], trivia = [ None ]),
+            range0
+        )
+        |> applyTo arg
+
+    /// {obj}.{meth}()
+    let callMethod (meth : string) (obj : SynExpr) : SynExpr =
+        callMethodArg meth (SynExpr.CreateConst ()) obj
+
+    let callGenericMethod (meth : string) (ty : LongIdent) (obj : SynExpr) : SynExpr =
+        SynExpr.TypeApp (
+            SynExpr.DotGet (obj, range0, SynLongIdent.createS meth, range0),
+            range0,
+            [ SynType.LongIdent (SynLongIdent.create ty) ],
+            [],
+            Some range0,
+            range0,
+            range0
+        )
+        |> applyTo (SynExpr.CreateConst ())
+
+    /// {obj}.{meth}<ty>()
+    let callGenericMethod' (meth : string) (ty : string) (obj : SynExpr) : SynExpr =
+        SynExpr.TypeApp (
+            SynExpr.DotGet (obj, range0, SynLongIdent.createS meth, range0),
+            range0,
+            [ SynType.createLongIdent' [ ty ] ],
+            [],
+            Some range0,
+            range0,
+            range0
+        )
+        |> applyTo (SynExpr.CreateConst ())
+
+    let inline index (property : SynExpr) (obj : SynExpr) : SynExpr =
+        SynExpr.DotIndexedGet (obj, property, range0, range0)
+
+    let inline paren (e : SynExpr) : SynExpr =
+        SynExpr.Paren (e, range0, Some range0, range0)
+
+    /// (fun {varName} -> {body})
+    let createLambda (varName : string) (body : SynExpr) : SynExpr =
+        let parsedDataPat = [ SynPat.named varName ]
+
+        SynExpr.Lambda (
+            false,
+            false,
+            SynSimplePats.Create [ SynSimplePat.CreateId (Ident.Create varName) ],
+            body,
+            Some (parsedDataPat, body),
+            range0,
+            {
+                ArrowRange = Some range0
+            }
+        )
+        |> paren
+
+    let createThunk (body : SynExpr) : SynExpr =
+        SynExpr.Lambda (
+            false,
+            false,
+            SynSimplePats.Create [],
+            body,
+            Some ([ SynPat.unit ], body),
+            range0,
+            {
+                ArrowRange = Some range0
+            }
+        )
+        |> paren
+
+    let inline createIdent (s : string) : SynExpr = SynExpr.Ident (Ident (s, range0))
+
+    let inline createIdent' (i : Ident) : SynExpr = SynExpr.Ident i
+
+    let inline createLongIdent' (ident : Ident list) : SynExpr =
+        SynExpr.LongIdent (false, SynLongIdent.create ident, None, range0)
+
+    let inline createLongIdent (ident : string list) : SynExpr =
+        createLongIdent' (ident |> List.map Ident.create)
+
+    let tupleNoParen (args : SynExpr list) : SynExpr =
+        SynExpr.Tuple (false, args, List.replicate (args.Length - 1) range0, range0)
+
+    let inline tuple (args : SynExpr list) = args |> tupleNoParen |> paren
+
+    /// {body} |> fun a -> Async.StartAsTask (a, ?cancellationToken=ct)
+    let startAsTask (ct : Ident) (body : SynExpr) =
+        let lambda =
+            [
+                createIdent "a"
+                equals
+                    (SynExpr.LongIdent (true, SynLongIdent.createS "cancellationToken", None, range0))
+                    (createIdent' ct)
+            ]
+            |> tuple
+            |> applyFunction (createLongIdent [ "Async" ; "StartAsTask" ])
+            |> createLambda "a"
+
+        pipeThroughFunction lambda body
+
+    let inline createLet (bindings : SynBinding list) (body : SynExpr) : SynExpr =
+        SynExpr.LetOrUse (false, false, bindings, body, range0, SynExprLetOrUseTrivia.empty)
+
+    let inline createMatch (matchOn : SynExpr) (cases : SynMatchClause list) : SynExpr =
+        SynExpr.Match (
+            DebugPointAtBinding.Yes range0,
+            matchOn,
+            cases,
+            range0,
+            {
+                MatchKeyword = range0
+                WithKeyword = range0
+            }
+        )
+
+    let typeAnnotate (ty : SynType) (expr : SynExpr) : SynExpr = SynExpr.Typed (expr, ty, range0)
+
+    let inline createNew (ty : SynType) (args : SynExpr) : SynExpr =
+        SynExpr.New (false, ty, paren args, range0)
+
+    let inline createWhile (cond : SynExpr) (body : SynExpr) : SynExpr =
+        SynExpr.While (DebugPointAtWhile.Yes range0, cond, body, range0)
+
+    let inline createNull () : SynExpr = SynExpr.Null range0
+
+    let reraise : SynExpr = createIdent "reraise" |> applyTo (SynExpr.CreateConst ())
+
+    let sequential (exprs : SynExpr list) : SynExpr =
+        exprs
+        |> List.reduce (fun a b -> SynExpr.Sequential (DebugPointAtSequential.SuppressNeither, false, a, b, range0))
+
+    /// {compExpr} { {lets} ; return {ret} }
+    let createCompExpr (compExpr : string) (retBody : SynExpr) (lets : CompExprBinding list) : SynExpr =
+        let retStatement = SynExpr.YieldOrReturn ((false, true), retBody, range0)
+
+        let contents : SynExpr =
+            (retStatement, List.rev lets)
+            ||> List.fold (fun state binding ->
+                match binding with
+                | LetBang (lhs, rhs) ->
+                    SynExpr.LetOrUseBang (
+                        DebugPointAtBinding.Yes range0,
+                        false,
+                        true,
+                        SynPat.named lhs,
+                        rhs,
+                        [],
+                        state,
+                        range0,
+                        {
+                            EqualsRange = Some range0
+                        }
+                    )
+                | Let (lhs, rhs) -> createLet [ SynBinding.basic [ Ident.create lhs ] [] rhs ] state
+                | Use (lhs, rhs) ->
+                    SynExpr.LetOrUse (
+                        false,
+                        true,
+                        [ SynBinding.basic [ Ident.create lhs ] [] rhs ],
+                        state,
+                        range0,
+                        {
+                            SynExprLetOrUseTrivia.InKeyword = None
+                        }
+                    )
+                | Do body -> sequential [ SynExpr.Do (body, range0) ; state ]
+            )
+
+        applyFunction (createIdent compExpr) (SynExpr.ComputationExpr (false, contents, range0))
+
+    /// {expr} |> Async.AwaitTask
+    let awaitTask (expr : SynExpr) : SynExpr =
+        expr |> pipeThroughFunction (createLongIdent [ "Async" ; "AwaitTask" ])
+
+    /// {ident}.ToString ()
+    /// with special casing for some types like DateTime
+    let toString (ty : SynType) (ident : SynExpr) =
+        match ty with
+        | DateOnly -> ident |> callMethodArg "ToString" (SynExpr.CreateConst "yyyy-MM-dd")
+        | DateTime -> ident |> callMethodArg "ToString" (SynExpr.CreateConst "yyyy-MM-ddTHH:mm:ss")
+        | _ -> callMethod "ToString" ident
+
+    let upcast' (ty : SynType) (e : SynExpr) = SynExpr.Upcast (e, ty, range0)
+
+    /// {ident} - {rhs}
+    let minus (ident : SynLongIdent) (rhs : SynExpr) : SynExpr =
+        SynExpr.CreateAppInfix (SynExpr.CreateLongIdent SynLongIdent.sub, SynExpr.CreateLongIdent ident)
+        |> applyTo rhs
+
+    /// {ident} - {n}
+    let minusN (ident : SynLongIdent) (n : int) : SynExpr = minus ident (SynExpr.CreateConst n)
+
+    /// {y} > {x}
+    let greaterThan (x : SynExpr) (y : SynExpr) : SynExpr =
+        SynExpr.CreateAppInfix (SynExpr.CreateLongIdent SynLongIdent.ge, y) |> applyTo x
+
+    /// {y} >= {x}
+    let greaterThanOrEqual (x : SynExpr) (y : SynExpr) : SynExpr =
+        SynExpr.CreateAppInfix (SynExpr.CreateLongIdent SynLongIdent.geq, y)
+        |> applyTo x

WoofWare.Myriad.Plugins/SynExpr/SynExprLetOrUseTrivia.fs

@@ -0,0 +1,10 @@
+namespace WoofWare.Myriad.Plugins
+
+open Fantomas.FCS.SyntaxTrivia
+
+[<RequireQualifiedAccess>]
+module internal SynExprLetOrUseTrivia =
+    let empty : SynExprLetOrUseTrivia =
+        {
+            InKeyword = None
+        }

WoofWare.Myriad.Plugins/SynExpr/SynField.fs

@@ -0,0 +1,69 @@
+namespace WoofWare.Myriad.Plugins
+
+open Fantomas.FCS.Text.Range
+open Fantomas.FCS.Syntax
+open Fantomas.FCS.SyntaxTrivia
+open Fantomas.FCS.Xml
+
+type internal SynFieldData<'Ident> =
+    {
+        Attrs : SynAttribute list
+        Ident : 'Ident
+        Type : SynType
+    }
+
+[<RequireQualifiedAccess>]
+module internal SynField =
+    /// Get the useful information out of a SynField.
+    let extract (SynField (attrs, _, id, fieldType, _, _, _, _, _)) : SynFieldData<Ident option> =
+        {
+            Attrs = attrs |> List.collect (fun l -> l.Attributes)
+            Ident = id
+            Type = fieldType
+        }
+
+    let mapIdent<'a, 'b> (f : 'a -> 'b) (x : SynFieldData<'a>) : SynFieldData<'b> =
+        let ident = f x.Ident
+
+        {
+            Attrs = x.Attrs
+            Ident = ident
+            Type = x.Type
+        }
+
+    /// Throws if the field has no identifier.
+    let extractWithIdent (f : SynField) : SynFieldData<Ident> =
+        f
+        |> extract
+        |> mapIdent (fun ident ->
+            match ident with
+            | None -> failwith "expected field identifier to have a value, but it did not"
+            | Some i -> i
+        )
+
+    let make (data : SynFieldData<Ident option>) : SynField =
+        let attrs : SynAttributeList list =
+            data.Attrs
+            |> List.map (fun l ->
+                {
+                    Attributes = [ l ]
+                    Range = range0
+                }
+            )
+
+        SynField.SynField (
+            attrs,
+            false,
+            data.Ident,
+            data.Type,
+            false,
+            PreXmlDoc.Empty,
+            None,
+            range0,
+            SynFieldTrivia.Zero
+        )
+
+    let withDocString (doc : PreXmlDoc) (f : SynField) : SynField =
+        match f with
+        | SynField (attributes, isStatic, idOpt, fieldType, isMutable, _, accessibility, range, trivia) ->
+            SynField (attributes, isStatic, idOpt, fieldType, isMutable, doc, accessibility, range, trivia)

WoofWare.Myriad.Plugins/SynExpr/SynLongIdent.fs

@@ -0,0 +1,106 @@
+namespace WoofWare.Myriad.Plugins
+
+open Fantomas.FCS.SyntaxTrivia
+open Fantomas.FCS.Text.Range
+open Fantomas.FCS.Syntax
+
+[<RequireQualifiedAccess>]
+module internal SynLongIdent =
+
+    let geq =
+        SynLongIdent.SynLongIdent (
+            [ Ident.create "op_GreaterThanOrEqual" ],
+            [],
+            [ Some (IdentTrivia.OriginalNotation ">=") ]
+        )
+
+    let ge =
+        SynLongIdent.SynLongIdent ([ Ident.create "op_GreaterThan" ], [], [ Some (IdentTrivia.OriginalNotation ">") ])
+
+    let sub =
+        SynLongIdent.SynLongIdent ([ Ident.create "op_Subtraction" ], [], [ Some (IdentTrivia.OriginalNotation "-") ])
+
+    let eq =
+        SynLongIdent.SynLongIdent ([ Ident.create "op_Equality" ], [], [ Some (IdentTrivia.OriginalNotation "=") ])
+
+    let pipe =
+        SynLongIdent.SynLongIdent ([ Ident.create "op_PipeRight" ], [], [ Some (IdentTrivia.OriginalNotation "|>") ])
+
+    let toString (sli : SynLongIdent) : string =
+        sli.LongIdent |> List.map _.idText |> String.concat "."
+
+    let create (ident : LongIdent) : SynLongIdent =
+        let commas =
+            match ident with
+            | [] -> []
+            | _ :: commas -> commas |> List.map (fun _ -> range0)
+
+        SynLongIdent.SynLongIdent (ident, commas, List.replicate ident.Length None)
+
+    let inline createI (i : Ident) : SynLongIdent = create [ i ]
+
+    let inline createS (s : string) : SynLongIdent = createI (Ident (s, range0))
+
+    let inline createS' (s : string list) : SynLongIdent =
+        create (s |> List.map (fun i -> Ident (i, range0)))
+
+    let isUnit (ident : SynLongIdent) : bool =
+        match ident.LongIdent with
+        | [ i ] when System.String.Equals (i.idText, "unit", System.StringComparison.OrdinalIgnoreCase) -> true
+        | _ -> false
+
+    let isList (ident : SynLongIdent) : bool =
+        match ident.LongIdent with
+        | [ i ] when System.String.Equals (i.idText, "list", System.StringComparison.OrdinalIgnoreCase) -> true
+        // TODO: consider FSharpList or whatever it is
+        | _ -> false
+
+    let isArray (ident : SynLongIdent) : bool =
+        match ident.LongIdent with
+        | [ i ] when
+            System.String.Equals (i.idText, "array", System.StringComparison.OrdinalIgnoreCase)
+            || System.String.Equals (i.idText, "[]", System.StringComparison.Ordinal)
+            ->
+            true
+        | _ -> false
+
+    let isOption (ident : SynLongIdent) : bool =
+        match ident.LongIdent with
+        | [ i ] when System.String.Equals (i.idText, "option", System.StringComparison.OrdinalIgnoreCase) -> true
+        // TODO: consider Microsoft.FSharp.Option or whatever it is
+        | _ -> false
+
+    let isResponse (ident : SynLongIdent) : bool =
+        match ident.LongIdent |> List.map _.idText with
+        | [ "Response" ]
+        | [ "RestEase" ; "Response" ] -> true
+        | _ -> false
+
+    let isMap (ident : SynLongIdent) : bool =
+        match ident.LongIdent |> List.map _.idText with
+        | [ "Map" ] -> true
+        | _ -> false
+
+    let isReadOnlyDictionary (ident : SynLongIdent) : bool =
+        match ident.LongIdent |> List.map _.idText with
+        | [ "IReadOnlyDictionary" ]
+        | [ "Generic" ; "IReadOnlyDictionary" ]
+        | [ "Collections" ; "Generic" ; "IReadOnlyDictionary" ]
+        | [ "System" ; "Collections" ; "Generic" ; "IReadOnlyDictionary" ] -> true
+        | _ -> false
+
+    let isDictionary (ident : SynLongIdent) : bool =
+        match ident.LongIdent |> List.map _.idText with
+        | [ "Dictionary" ]
+        | [ "Generic" ; "Dictionary" ]
+        | [ "Collections" ; "Generic" ; "Dictionary" ]
+        | [ "System" ; "Collections" ; "Generic" ; "Dictionary" ] -> true
+        | _ -> false
+
+    let isIDictionary (ident : SynLongIdent) : bool =
+        match ident.LongIdent |> List.map _.idText with
+        | [ "IDictionary" ]
+        | [ "Generic" ; "IDictionary" ]
+        | [ "Collections" ; "Generic" ; "IDictionary" ]
+        | [ "System" ; "Collections" ; "Generic" ; "IDictionary" ] -> true
+        | _ -> false

WoofWare.Myriad.Plugins/SynExpr/SynMatchClause.fs

@@ -0,0 +1,24 @@
+namespace WoofWare.Myriad.Plugins
+
+open Fantomas.FCS.Syntax
+open Fantomas.FCS.Text.Range
+
+[<RequireQualifiedAccess>]
+module internal SynMatchClause =
+    let create (lhs : SynPat) (rhs : SynExpr) : SynMatchClause =
+        SynMatchClause.SynMatchClause (
+            lhs,
+            None,
+            rhs,
+            range0,
+            DebugPointAtTarget.Yes,
+            {
+                ArrowRange = Some range0
+                BarRange = Some range0
+            }
+        )
+
+    let withWhere (where : SynExpr) (m : SynMatchClause) : SynMatchClause =
+        match m with
+        | SynMatchClause (synPat, _, resultExpr, range, debugPointAtTarget, synMatchClauseTrivia) ->
+            SynMatchClause (synPat, Some where, resultExpr, range, debugPointAtTarget, synMatchClauseTrivia)

WoofWare.Myriad.Plugins/SynExpr/SynMemberDefn.fs

@@ -0,0 +1,65 @@
+namespace WoofWare.Myriad.Plugins
+
+open Fantomas.FCS.Syntax
+open Fantomas.FCS.SyntaxTrivia
+open Fantomas.FCS.Text.Range
+open Fantomas.FCS.Xml
+
+[<RequireQualifiedAccess>]
+module internal SynMemberDefn =
+    let private interfaceMemberSlotFlags =
+        {
+            SynMemberFlags.IsInstance = true
+            SynMemberFlags.IsDispatchSlot = true
+            SynMemberFlags.IsOverrideOrExplicitImpl = false
+            SynMemberFlags.IsFinal = false
+            SynMemberFlags.GetterOrSetterIsCompilerGenerated = false
+            SynMemberFlags.MemberKind = SynMemberKind.Member
+        }
+
+
+    let abstractMember
+        (ident : SynIdent)
+        (typars : SynTyparDecls option)
+        (arity : SynValInfo)
+        (xmlDoc : PreXmlDoc)
+        (returnType : SynType)
+        : SynMemberDefn
+        =
+        let slot =
+            SynValSig.SynValSig (
+                [],
+                ident,
+                SynValTyparDecls.SynValTyparDecls (typars, true),
+                returnType,
+                arity,
+                false,
+                false,
+                xmlDoc,
+                None,
+                None,
+                range0,
+                {
+                    EqualsRange = None
+                    WithKeyword = None
+                    InlineKeyword = None
+                    LeadingKeyword = SynLeadingKeyword.Abstract range0
+                }
+            )
+
+        SynMemberDefn.AbstractSlot (
+            slot,
+            interfaceMemberSlotFlags,
+            range0,
+            {
+                GetSetKeywords = None
+            }
+        )
+
+    let staticMember (binding : SynBinding) : SynMemberDefn =
+        let binding = SynBinding.makeStaticMember binding
+        SynMemberDefn.Member (binding, range0)
+
+    let memberImplementation (binding : SynBinding) : SynMemberDefn =
+        let binding = SynBinding.makeInstanceMember binding
+        SynMemberDefn.Member (binding, range0)

WoofWare.Myriad.Plugins/SynExpr/SynModuleDecl.fs

@@ -0,0 +1,28 @@
+namespace WoofWare.Myriad.Plugins
+
+open Fantomas.FCS.Syntax
+open Fantomas.FCS.SyntaxTrivia
+open Fantomas.FCS.Text.Range
+
+[<RequireQualifiedAccess>]
+module internal SynModuleDecl =
+
+    let inline openAny (ident : SynOpenDeclTarget) : SynModuleDecl = SynModuleDecl.Open (ident, range0)
+
+    let inline createLets (bindings : SynBinding list) : SynModuleDecl =
+        SynModuleDecl.Let (false, bindings, range0)
+
+    let inline createLet (binding : SynBinding) : SynModuleDecl = createLets [ binding ]
+
+    let nestedModule (info : SynComponentInfo) (decls : SynModuleDecl list) : SynModuleDecl =
+        SynModuleDecl.NestedModule (
+            info,
+            false,
+            decls,
+            false,
+            range0,
+            {
+                ModuleKeyword = Some range0
+                EqualsRange = Some range0
+            }
+        )

WoofWare.Myriad.Plugins/SynExpr/SynModuleOrNamespace.fs

@@ -0,0 +1,24 @@
+namespace WoofWare.Myriad.Plugins
+
+open Fantomas.FCS.Syntax
+open Fantomas.FCS.SyntaxTrivia
+open Fantomas.FCS.Xml
+open Fantomas.FCS.Text.Range
+
+[<RequireQualifiedAccess>]
+module internal SynModuleOrNamespace =
+
+    let createNamespace (name : LongIdent) (decls : SynModuleDecl list) =
+        SynModuleOrNamespace.SynModuleOrNamespace (
+            name,
+            false,
+            SynModuleOrNamespaceKind.DeclaredNamespace,
+            decls,
+            PreXmlDoc.Empty,
+            [],
+            None,
+            range0,
+            {
+                LeadingKeyword = SynModuleOrNamespaceLeadingKeyword.Namespace range0
+            }
+        )

WoofWare.Myriad.Plugins/SynExpr/SynPat.fs

@@ -0,0 +1,35 @@
+namespace WoofWare.Myriad.Plugins
+
+open Fantomas.FCS.Syntax
+open Fantomas.FCS.Text.Range
+
+[<RequireQualifiedAccess>]
+module internal SynPat =
+    let inline paren (pat : SynPat) : SynPat = SynPat.Paren (pat, range0)
+
+    let inline annotateTypeNoParen (ty : SynType) (pat : SynPat) = SynPat.Typed (pat, ty, range0)
+
+    let inline annotateType (ty : SynType) (pat : SynPat) = paren (annotateTypeNoParen ty pat)
+
+    let inline named (s : string) : SynPat =
+        SynPat.Named (SynIdent.SynIdent (Ident (s, range0), None), false, None, range0)
+
+    let inline namedI (i : Ident) : SynPat =
+        SynPat.Named (SynIdent.SynIdent (i, None), false, None, range0)
+
+    let inline identWithArgs (i : LongIdent) (args : SynArgPats) : SynPat =
+        SynPat.LongIdent (SynLongIdent.create i, None, None, args, None, range0)
+
+    let inline tupleNoParen (elements : SynPat list) : SynPat =
+        match elements with
+        | [] -> failwith "Can't tuple no elements in a pattern"
+        | [ p ] -> p
+        | elements -> SynPat.Tuple (false, elements, List.replicate (elements.Length - 1) range0, range0)
+
+    let inline tuple (elements : SynPat list) : SynPat = tupleNoParen elements |> paren
+
+    let inline createConst (c : SynConst) = SynPat.Const (c, range0)
+
+    let unit = createConst SynConst.Unit
+
+    let createNull = SynPat.Null range0

WoofWare.Myriad.Plugins/SynExpr/SynType.fs

@@ -0,0 +1,250 @@
+namespace WoofWare.Myriad.Plugins
+
+open Fantomas.FCS.Syntax
+open Fantomas.FCS.Text.Range
+
+[<RequireQualifiedAccess>]
+module internal SynType =
+    let rec stripOptionalParen (ty : SynType) : SynType =
+        match ty with
+        | SynType.Paren (ty, _) -> stripOptionalParen ty
+        | ty -> ty
+
+    let inline createLongIdent (ident : LongIdent) : SynType =
+        SynType.LongIdent (SynLongIdent.create ident)
+
+    let inline createLongIdent' (ident : string list) : SynType =
+        SynType.LongIdent (SynLongIdent.createS' ident)
+
+    let inline named (name : string) = createLongIdent' [ name ]
+
+    let inline app' (name : SynType) (args : SynType list) : SynType =
+        if args.IsEmpty then
+            failwith "Type cannot be applied to no arguments"
+
+        SynType.App (name, Some range0, args, List.replicate (args.Length - 1) range0, Some range0, false, range0)
+
+    let inline app (name : string) (args : SynType list) : SynType = app' (named name) args
+
+    let inline appPostfix (name : string) (arg : SynType) : SynType =
+        SynType.App (named name, None, [ arg ], [], None, true, range0)
+
+    let inline funFromDomain (domain : SynType) (range : SynType) : SynType =
+        SynType.Fun (
+            domain,
+            range,
+            range0,
+            {
+                ArrowRange = range0
+            }
+        )
+
+    let inline signatureParamOfType (ty : SynType) (name : Ident option) : SynType =
+        SynType.SignatureParameter ([], false, name, ty, range0)
+
+    let inline var (ty : SynTypar) : SynType = SynType.Var (ty, range0)
+
+    let unit : SynType = named "unit"
+    let int : SynType = named "int"
+
+    /// Given ['a1, 'a2] and 'ret, returns 'a1 -> 'a2 -> 'ret.
+    let toFun (inputs : SynType list) (ret : SynType) : SynType =
+        (ret, List.rev inputs) ||> List.fold (fun ty input -> funFromDomain input ty)
+
+[<AutoOpen>]
+module internal SynTypePatterns =
+    let (|OptionType|_|) (fieldType : SynType) =
+        match fieldType with
+        | SynType.App (SynType.LongIdent ident, _, [ innerType ], _, _, _, _) when SynLongIdent.isOption ident ->
+            Some innerType
+        | _ -> None
+
+    let (|UnitType|_|) (fieldType : SynType) : unit option =
+        match fieldType with
+        | SynType.LongIdent ident when SynLongIdent.isUnit ident -> Some ()
+        | _ -> None
+
+    let (|ListType|_|) (fieldType : SynType) =
+        match fieldType with
+        | SynType.App (SynType.LongIdent ident, _, [ innerType ], _, _, _, _) when SynLongIdent.isList ident ->
+            Some innerType
+        | _ -> None
+
+    let (|ArrayType|_|) (fieldType : SynType) =
+        match fieldType with
+        | SynType.App (SynType.LongIdent ident, _, [ innerType ], _, _, _, _) when SynLongIdent.isArray ident ->
+            Some innerType
+        | SynType.Array (1, innerType, _) -> Some innerType
+        | _ -> None
+
+    let (|RestEaseResponseType|_|) (fieldType : SynType) =
+        match fieldType with
+        | SynType.App (SynType.LongIdent ident, _, [ innerType ], _, _, _, _) when SynLongIdent.isResponse ident ->
+            Some innerType
+        | _ -> None
+
+    let (|DictionaryType|_|) (fieldType : SynType) =
+        match fieldType with
+        | SynType.App (SynType.LongIdent ident, _, [ key ; value ], _, _, _, _) when SynLongIdent.isDictionary ident ->
+            Some (key, value)
+        | _ -> None
+
+    let (|IDictionaryType|_|) (fieldType : SynType) =
+        match fieldType with
+        | SynType.App (SynType.LongIdent ident, _, [ key ; value ], _, _, _, _) when SynLongIdent.isIDictionary ident ->
+            Some (key, value)
+        | _ -> None
+
+    let (|IReadOnlyDictionaryType|_|) (fieldType : SynType) =
+        match fieldType with
+        | SynType.App (SynType.LongIdent ident, _, [ key ; value ], _, _, _, _) when
+            SynLongIdent.isReadOnlyDictionary ident
+            ->
+            Some (key, value)
+        | _ -> None
+
+    let (|MapType|_|) (fieldType : SynType) =
+        match fieldType with
+        | SynType.App (SynType.LongIdent ident, _, [ key ; value ], _, _, _, _) when SynLongIdent.isMap ident ->
+            Some (key, value)
+        | _ -> None
+
+    let (|BigInt|_|) (fieldType : SynType) : unit option =
+        match fieldType with
+        | SynType.LongIdent ident ->
+            match ident.LongIdent |> List.map _.idText with
+            | [ "bigint" ]
+            | [ "BigInteger" ]
+            | [ "Numerics" ; "BigInteger" ]
+            | [ "System" ; "Numerics" ; "BigInteger" ] -> Some ()
+            | _ -> None
+        | _ -> None
+
+    /// Returns the type, qualified as in e.g. `System.Boolean`.
+    let (|PrimitiveType|_|) (fieldType : SynType) : LongIdent option =
+        match fieldType with
+        | SynType.LongIdent ident ->
+            match ident.LongIdent with
+            | [ i ] -> Primitives.qualifyType i.idText
+            | _ -> None
+        | _ -> None
+
+    let (|String|_|) (fieldType : SynType) : unit option =
+        match fieldType with
+        | SynType.LongIdent ident ->
+            match ident.LongIdent with
+            | [ i ] ->
+                [ "string" ]
+                |> List.tryFind (fun s -> s = i.idText)
+                |> Option.map ignore<string>
+            | _ -> None
+        | _ -> None
+
+    let (|Byte|_|) (fieldType : SynType) : unit option =
+        match fieldType with
+        | SynType.LongIdent ident ->
+            match ident.LongIdent with
+            | [ i ] -> [ "byte" ] |> List.tryFind (fun s -> s = i.idText) |> Option.map ignore<string>
+            | _ -> None
+        | _ -> None
+
+    let (|Guid|_|) (fieldType : SynType) : unit option =
+        match fieldType with
+        | SynType.LongIdent ident ->
+            match ident.LongIdent |> List.map (fun i -> i.idText) with
+            | [ "System" ; "Guid" ]
+            | [ "Guid" ] -> Some ()
+            | _ -> None
+        | _ -> None
+
+    let (|HttpResponseMessage|_|) (fieldType : SynType) : unit option =
+        match fieldType with
+        | SynType.LongIdent ident ->
+            match ident.LongIdent |> List.map (fun i -> i.idText) with
+            | [ "System" ; "Net" ; "Http" ; "HttpResponseMessage" ]
+            | [ "Net" ; "Http" ; "HttpResponseMessage" ]
+            | [ "Http" ; "HttpResponseMessage" ]
+            | [ "HttpResponseMessage" ] -> Some ()
+            | _ -> None
+        | _ -> None
+
+    let (|HttpContent|_|) (fieldType : SynType) : unit option =
+        match fieldType with
+        | SynType.LongIdent ident ->
+            match ident.LongIdent |> List.map (fun i -> i.idText) with
+            | [ "System" ; "Net" ; "Http" ; "HttpContent" ]
+            | [ "Net" ; "Http" ; "HttpContent" ]
+            | [ "Http" ; "HttpContent" ]
+            | [ "HttpContent" ] -> Some ()
+            | _ -> None
+        | _ -> None
+
+    let (|Stream|_|) (fieldType : SynType) : unit option =
+        match fieldType with
+        | SynType.LongIdent ident ->
+            match ident.LongIdent |> List.map (fun i -> i.idText) with
+            | [ "System" ; "IO" ; "Stream" ]
+            | [ "IO" ; "Stream" ]
+            | [ "Stream" ] -> Some ()
+            | _ -> None
+        | _ -> None
+
+    let (|NumberType|_|) (fieldType : SynType) =
+        match fieldType with
+        | SynType.LongIdent ident ->
+            match ident.LongIdent with
+            | [ i ] -> [ "string" ; "float" ; "int" ; "bool" ] |> List.tryFind (fun s -> s = i.idText)
+            | _ -> None
+        | _ -> None
+
+    let (|Measure|_|) (fieldType : SynType) : (Ident * string) option =
+        match fieldType with
+        | SynType.App (NumberType outer,
+                       _,
+                       [ SynType.LongIdent (SynLongIdent.SynLongIdent ([ ident ], _, _)) ],
+                       _,
+                       _,
+                       _,
+                       _) -> Some (ident, outer)
+        | _ -> None
+
+    let (|DateOnly|_|) (fieldType : SynType) =
+        match fieldType with
+        | SynType.LongIdent (SynLongIdent.SynLongIdent (ident, _, _)) ->
+            match ident |> List.map (fun i -> i.idText) with
+            | [ "System" ; "DateOnly" ]
+            | [ "DateOnly" ] -> Some ()
+            | _ -> None
+        | _ -> None
+
+    let (|DateTime|_|) (fieldType : SynType) =
+        match fieldType with
+        | SynType.LongIdent (SynLongIdent.SynLongIdent (ident, _, _)) ->
+            match ident |> List.map (fun i -> i.idText) with
+            | [ "System" ; "DateTime" ]
+            | [ "DateTime" ] -> Some ()
+            | _ -> None
+        | _ -> None
+
+    let (|Uri|_|) (fieldType : SynType) =
+        match fieldType with
+        | SynType.LongIdent (SynLongIdent.SynLongIdent (ident, _, _)) ->
+            match ident |> List.map (fun i -> i.idText) with
+            | [ "System" ; "Uri" ]
+            | [ "Uri" ] -> Some ()
+            | _ -> None
+        | _ -> None
+
+    let (|Task|_|) (fieldType : SynType) : SynType option =
+        match fieldType with
+        | SynType.App (SynType.LongIdent (SynLongIdent.SynLongIdent (ident, _, _)), _, args, _, _, _, _) ->
+            match ident |> List.map (fun i -> i.idText) with
+            | [ "Task" ]
+            | [ "Tasks" ; "Task" ]
+            | [ "Threading" ; "Tasks" ; "Task" ]
+            | [ "System" ; "Threading" ; "Tasks" ; "Task" ] ->
+                match args with
+                | [ arg ] -> Some arg
+                | _ -> failwithf "Expected Task to be applied to exactly one arg, but got: %+A" args
+            | _ -> None
+        | _ -> None

WoofWare.Myriad.Plugins/SynExpr/SynTypeDefn.fs

@@ -0,0 +1,27 @@
+namespace WoofWare.Myriad.Plugins
+
+open Fantomas.FCS.Syntax
+open Fantomas.FCS.SyntaxTrivia
+open Fantomas.FCS.Text.Range
+
+[<RequireQualifiedAccess>]
+module internal SynTypeDefn =
+
+    let inline create (componentInfo : SynComponentInfo) (repr : SynTypeDefnRepr) : SynTypeDefn =
+        SynTypeDefn.SynTypeDefn (
+            componentInfo,
+            repr,
+            [],
+            None,
+            range0,
+            {
+                LeadingKeyword = SynTypeDefnLeadingKeyword.Type range0
+                EqualsRange = Some range0
+                WithKeyword = None
+            }
+        )
+
+    let inline withMemberDefns (members : SynMemberDefn list) (r : SynTypeDefn) : SynTypeDefn =
+        match r with
+        | SynTypeDefn (typeInfo, typeRepr, _, ctor, range, trivia) ->
+            SynTypeDefn.SynTypeDefn (typeInfo, typeRepr, members, ctor, range, trivia)

WoofWare.Myriad.Plugins/SynExpr/SynTypeDefnRepr.fs

@@ -0,0 +1,20 @@
+namespace WoofWare.Myriad.Plugins
+
+open Fantomas.FCS.Syntax
+open Fantomas.FCS.Text.Range
+
+[<RequireQualifiedAccess>]
+module internal SynTypeDefnRepr =
+
+    let inline interfaceType (mems : SynMemberDefns) : SynTypeDefnRepr =
+        SynTypeDefnRepr.ObjectModel (SynTypeDefnKind.Unspecified, mems, range0)
+
+    /// Indicates the body of a `type Foo with {body}` extension type declaration.
+    let inline augmentation () : SynTypeDefnRepr =
+        SynTypeDefnRepr.ObjectModel (SynTypeDefnKind.Augmentation range0, [], range0)
+
+    let inline union (cases : SynUnionCase list) : SynTypeDefnRepr =
+        SynTypeDefnRepr.Simple (SynTypeDefnSimpleRepr.Union (None, cases, range0), range0)
+
+    let inline record (fields : SynField list) : SynTypeDefnRepr =
+        SynTypeDefnRepr.Simple (SynTypeDefnSimpleRepr.Record (None, fields, range0), range0)

WoofWare.Myriad.Plugins/SynExpr/SynUnionCase.fs

@@ -0,0 +1,41 @@
+namespace WoofWare.Myriad.Plugins
+
+open Fantomas.FCS.Syntax
+
+type internal UnionCase<'Ident> =
+    {
+        Fields : SynFieldData<'Ident> list
+        Attrs : SynAttribute list
+        Ident : Ident
+    }
+
+[<RequireQualifiedAccess>]
+module internal UnionCase =
+    let mapIdentFields<'a, 'b> (f : 'a -> 'b) (unionCase : UnionCase<'a>) : UnionCase<'b> =
+        {
+            Fields = unionCase.Fields |> List.map (SynField.mapIdent f)
+            Attrs = unionCase.Attrs
+            Ident = unionCase.Ident
+        }
+
+[<RequireQualifiedAccess>]
+module internal SynUnionCase =
+    let extract (SynUnionCase (attrs, id, caseType, _, _, _, _)) : UnionCase<Ident option> =
+        match caseType with
+        | SynUnionCaseKind.FullType _ -> failwith "WoofWare.Myriad does not support FullType union cases."
+        | SynUnionCaseKind.Fields fields ->
+
+        let fields = fields |> List.map SynField.extract
+
+        let id =
+            match id with
+            | SynIdent.SynIdent (ident, _) -> ident
+
+        // As far as I can tell, there's no way to get any attributes here? :shrug:
+        let attrs = attrs |> List.collect (fun l -> l.Attributes)
+
+        {
+            Fields = fields
+            Attrs = attrs
+            Ident = id
+        }

WoofWare.Myriad.Plugins/SynType.fs

@@ -1,10 +0,0 @@
-namespace WoofWare.Myriad.Plugins
-
-open Fantomas.FCS.Syntax
-
-[<RequireQualifiedAccess>]
-module internal SynType =
-    let rec stripOptionalParen (ty : SynType) : SynType =
-        match ty with
-        | SynType.Paren (ty, _) -> stripOptionalParen ty
-        | ty -> ty

WoofWare.Myriad.Plugins/WoofWare.Myriad.Plugins.fsproj

@@ -25,11 +25,29 @@
 
   <ItemGroup>
     <Compile Include="List.fs"/>
-    <Compile Include="Ident.fs" />
+    <Compile Include="Primitives.fs" />
-    <Compile Include="AstHelper.fs"/>
+    <Compile Include="SynExpr\PreXmlDoc.fs" />
-    <Compile Include="SynExpr.fs" />
+    <Compile Include="SynExpr\Ident.fs" />
-    <Compile Include="SynType.fs"/>
+    <Compile Include="SynExpr\SynLongIdent.fs" />
-    <Compile Include="SynAttribute.fs"/>
+    <Compile Include="SynExpr\SynExprLetOrUseTrivia.fs" />
+    <Compile Include="SynExpr\SynPat.fs" />
+    <Compile Include="SynExpr\SynBinding.fs" />
+    <Compile Include="SynExpr\SynType.fs" />
+    <Compile Include="SynExpr\SynMatchClause.fs" />
+    <Compile Include="SynExpr\CompExpr.fs" />
+    <Compile Include="SynExpr\SynExpr.fs" />
+    <Compile Include="SynExpr\SynArgPats.fs" />
+    <Compile Include="SynExpr\SynField.fs" />
+    <Compile Include="SynExpr\SynUnionCase.fs" />
+    <Compile Include="SynExpr\SynTypeDefnRepr.fs" />
+    <Compile Include="SynExpr\SynTypeDefn.fs" />
+    <Compile Include="SynExpr\SynComponentInfo.fs" />
+    <Compile Include="SynExpr\SynMemberDefn.fs" />
+    <Compile Include="SynExpr\SynAttribute.fs" />
+    <Compile Include="SynExpr\SynModuleDecl.fs" />
+    <Compile Include="SynExpr\SynModuleOrNamespace.fs" />
+    <Compile Include="Measure.fs" />
+    <Compile Include="AstHelper.fs" />
     <Compile Include="RemoveOptionsGenerator.fs"/>
     <Compile Include="InterfaceMockGenerator.fs"/>
     <Compile Include="JsonSerializeGenerator.fs"/>

WoofWare.Myriad.Plugins/version.json

@@ -4,9 +4,11 @@
     "^refs/heads/main$"
   ],
   "pathFilters": [
-    ":/",
+    "./",
-    ":^WoofWare.Myriad.Plugins.Test/",
+    ":/WoofWare.Myriad.Plugins.Attributes",
-    ":^WoofWare.Myriad.Plugins.Attributes/Test/",
+    "^:/WoofWare.Myriad.Plugins.Attributes/WoofWare.Myriad.Plugins.Attributes.Test",
-    ":^/.github/"
+    ":/global.json",
+    ":/README.md",
+    ":/Directory.Build.props"
   ]
 }

flake.nix

@@ -45,44 +45,19 @@
       packages = {
         fantomas = dotnetTool null "fantomas" (builtins.fromJSON (builtins.readFile ./.config/dotnet-tools.json)).tools.fantomas.version (builtins.head (builtins.filter (elem: elem.pname == "fantomas") ((import ./nix/deps.nix) {fetchNuGet = x: x;}))).sha256;
         fsharp-analyzers = dotnetTool "FSharp.Analyzers.Cli" "fsharp-analyzers" (builtins.fromJSON (builtins.readFile ./.config/dotnet-tools.json)).tools.fsharp-analyzers.version (builtins.head (builtins.filter (elem: elem.pname == "fsharp-analyzers") ((import ./nix/deps.nix) {fetchNuGet = x: x;}))).sha256;
-        fetchDeps = let
-          flags = [];
-          runtimeIds = ["win-x64"] ++ map (system: pkgs.dotnetCorePackages.systemToDotnetRid system) dotnet-sdk.meta.platforms;
-        in
-          pkgs.writeShellScriptBin "fetch-${pname}-deps" (builtins.readFile (pkgs.substituteAll {
-            src = ./nix/fetchDeps.sh;
-            pname = pname;
-            binPath = pkgs.lib.makeBinPath [pkgs.coreutils dotnet-sdk (pkgs.nuget-to-nix.override {inherit dotnet-sdk;})];
-            projectFiles = toString ["./WoofWare.Myriad.Plugins/WoofWare.Myriad.Plugins.fsproj" "./ConsumePlugin/ConsumePlugin.fsproj" "./WoofWare.Myriad.Plugins.Attributes/WoofWare.Myriad.Plugins.Attributes.fsproj"];
-            testProjectFiles = ["./WoofWare.Myriad.Plugins.Test/WoofWare.Myriad.Plugins.Test.fsproj" "./WoofWare.Myriad.Plugins.Attributes/Test/Woofware.Myriad.Plugins.Attributes.Test.fsproj"];
-            rids = pkgs.lib.concatStringsSep "\" \"" runtimeIds;
-            packages = dotnet-sdk.packages;
-            storeSrc = pkgs.srcOnly {
-              src = ./.;
-              pname = pname;
-              version = version;
-            };
-          }));
         default = pkgs.buildDotnetModule {
-          pname = pname;
+          inherit pname version dotnet-sdk dotnet-runtime;
           name = "WoofWare.Myriad.Plugins";
-          version = version;
           src = ./.;
           projectFile = "./WoofWare.Myriad.Plugins/WoofWare.Myriad.Plugins.fsproj";
-          nugetDeps = ./nix/deps.nix;
+          testProjectFile = "./WoofWare.Myriad.Plugins.Test/WoofWare.Myriad.Plugins.Test.fsproj";
+          disabledTests = ["WoofWare.Myriad.Plugins.Test.TestSurface.CheckVersionAgainstRemote"];
+          nugetDeps = ./nix/deps.nix; # `nix build .#default.passthru.fetch-deps && ./result` and put the result here
           doCheck = true;
-          dotnet-sdk = dotnet-sdk;
-          dotnet-runtime = dotnet-runtime;
         };
       };
       devShell = pkgs.mkShell {
-        buildInputs = with pkgs; [
+        buildInputs = [dotnet-sdk];
-          (with dotnetCorePackages;
-            combinePackages [
-              dotnet-sdk_8
-              dotnetPackages.Nuget
-            ])
-        ];
         packages = [
           pkgs.alejandra
           pkgs.nodePackages.markdown-link-check

nix/deps.nix

@@ -1,20 +1,15 @@
 # This file was automatically generated by passthru.fetch-deps.
-# Please don't edit it manually, your changes might get overwritten!
+# Please dont edit it manually, your changes might get overwritten!
 {fetchNuGet}: [
   (fetchNuGet {
-    pname = "fsharp-analyzers";
+    pname = "ApiSurface";
-    version = "0.26.0";
+    version = "4.0.41";
-    sha256 = "sha256-60Bl36LOb/zVNdH2SBSuQ5O41lP9dKTNZbs5vvYs+3U=";
+    sha256 = "03kfa5ngmgkik9lc58sp8s9rrh9g40hhgjnrv662ks0d0y2i9i89";
   })
   (fetchNuGet {
     pname = "fantomas";
-    version = "6.3.4";
+    version = "6.3.9";
-    sha256 = "sha256-1aWqZynBkQoznenGoP0sbf1PcUXAbcHiWyECuv89xa0=";
+    sha256 = "1b34iiiff02bbzjv03zyna8xmrgs6y87zdvp5i5k58fcqpjw44sx";
-  })
-  (fetchNuGet {
-    pname = "ApiSurface";
-    version = "4.0.40";
-    sha256 = "1c9z0b6minlripwrjmv4yd5w8zj4lcpak4x41izh7ygx8kgmbvx0";
   })
   (fetchNuGet {
     pname = "Fantomas.Core";
@@ -31,6 +26,11 @@
     version = "2.16.6";
     sha256 = "176rwky6b5rk8dzldiz4068p7m9c5y9ygzbhadrs14jkl94pc56n";
   })
+  (fetchNuGet {
+    pname = "fsharp-analyzers";
+    version = "0.26.0";
+    sha256 = "0xgv5kvbwfdvcp6s8x7xagbbi4s3mqa4ixni6pazqvyflbgnah7b";
+  })
   (fetchNuGet {
     pname = "FSharp.Core";
     version = "4.3.4";
@@ -56,66 +56,26 @@
     version = "6.0.26";
     sha256 = "1d8nkz24vsm0iy2xm8y5ak2q1w1p99dxyz0y26acs6sfk2na0vm6";
   })
-  (fetchNuGet {
-    pname = "Microsoft.AspNetCore.App.Ref";
-    version = "8.0.1";
-    sha256 = "0yaaiqq7mi6sclyrb1v0fyncanbx0ifmnnhv9whynqj8439jsdwh";
-  })
   (fetchNuGet {
     pname = "Microsoft.AspNetCore.App.Runtime.linux-arm64";
     version = "6.0.26";
     sha256 = "1za8lc52m4z54d68wd64c2nhzy05g3gx171k5cdlx73fbymiys9z";
   })
-  (fetchNuGet {
-    pname = "Microsoft.AspNetCore.App.Runtime.linux-arm64";
-    version = "8.0.1";
-    sha256 = "0dsdgqg7566qximmjfza4x9if3icy4kskq698ddj5apdia88h2mw";
-  })
   (fetchNuGet {
     pname = "Microsoft.AspNetCore.App.Runtime.linux-x64";
     version = "6.0.26";
     sha256 = "1zpbmz6z8758gwywzg0bac8kx9x39sxxc9j4a4r2jl74l9ssw4vm";
   })
-  (fetchNuGet {
-    pname = "Microsoft.AspNetCore.App.Runtime.linux-x64";
-    version = "8.0.1";
-    sha256 = "1gjz379y61ag9whi78qxx09bwkwcznkx2mzypgycibxk61g11da1";
-  })
   (fetchNuGet {
     pname = "Microsoft.AspNetCore.App.Runtime.osx-arm64";
     version = "6.0.26";
     sha256 = "1i8ydlwjzk7j0mzvn0rpljxfp1h50zwaqalnyvfxai1fwgigzgw5";
   })
-  (fetchNuGet {
-    pname = "Microsoft.AspNetCore.App.Runtime.osx-arm64";
-    version = "8.0.1";
-    sha256 = "0w3mrs4zdl9mfanl1j81759xwwrzmicsjxn6yfxv5yrxbxzq695n";
-  })
   (fetchNuGet {
     pname = "Microsoft.AspNetCore.App.Runtime.osx-x64";
     version = "6.0.26";
     sha256 = "02src68hd3213sd1a2ms1my7i92knfmdxclvv90il9cky2zsq8kw";
   })
-  (fetchNuGet {
-    pname = "Microsoft.AspNetCore.App.Runtime.osx-x64";
-    version = "8.0.1";
-    sha256 = "0a9aljr4fy4haq6ndz2y723liv5hbfpss1rn45s88nmgcp27m15m";
-  })
-  (fetchNuGet {
-    pname = "Microsoft.AspNetCore.App.Runtime.win-x64";
-    version = "6.0.26";
-    sha256 = "1gxlmfdkfzmhw9pac5jiv674nn6i1zymcp2hj81irjwhhjk01mf5";
-  })
-  (fetchNuGet {
-    pname = "Microsoft.AspNetCore.App.Runtime.win-x64";
-    version = "8.0.1";
-    sha256 = "01kzndyqmsvcq49i2jrv7ymfp0l71yxfylv1cy3nhkdbprqz8ipx";
-  })
-  (fetchNuGet {
-    pname = "Microsoft.Build.Tasks.Git";
-    version = "8.0.0";
-    sha256 = "0055f69q3hbagqp8gl3nk0vfn4qyqyxsxyy7pd0g7wm3z28byzmx";
-  })
   (fetchNuGet {
     pname = "Microsoft.CodeCoverage";
     version = "17.10.0";
@@ -131,111 +91,46 @@
     version = "6.0.26";
     sha256 = "19y6c6v20bgf7x7rrh4rx9y7s5fy8vp5m4j9b6gi1wp4rpb5mza4";
   })
-  (fetchNuGet {
-    pname = "Microsoft.NETCore.App.Host.linux-arm64";
-    version = "8.0.1";
-    sha256 = "0dhpdlcdz7adcfh9w01fc867051m35fqaxnvj3fqvqhgcm2n3143";
-  })
   (fetchNuGet {
     pname = "Microsoft.NETCore.App.Host.linux-x64";
     version = "6.0.26";
     sha256 = "0p7hhidaa3mnyiwnsijwy8578v843x8hh99255s69qwwyld6falv";
   })
-  (fetchNuGet {
-    pname = "Microsoft.NETCore.App.Host.linux-x64";
-    version = "8.0.1";
-    sha256 = "1aw6mc7zcmzs1grxz2wa9cw9kfj8pz7zpj417xnp1a9n4ix1bxgr";
-  })
   (fetchNuGet {
     pname = "Microsoft.NETCore.App.Host.osx-arm64";
     version = "6.0.26";
     sha256 = "1mq11xsv9g1vsasp6k80y7xlvwi9hrpk5dgm773fvy8538s01gfv";
   })
-  (fetchNuGet {
-    pname = "Microsoft.NETCore.App.Host.osx-arm64";
-    version = "8.0.1";
-    sha256 = "1dzg3prng9zfdzz7gcgywjdbwzhwm85j89z0jahynxx4q2dra4b9";
-  })
   (fetchNuGet {
     pname = "Microsoft.NETCore.App.Host.osx-x64";
     version = "6.0.26";
     sha256 = "1chac9b4424ihrrnlzvc7qz6j4ymfjyv4kzyazzzw19yhymdkh2s";
   })
-  (fetchNuGet {
-    pname = "Microsoft.NETCore.App.Host.osx-x64";
-    version = "8.0.1";
-    sha256 = "010f8wn15s2kv7yyzgys3pv9i1mxw20hpv1ig2zhybjxs8lpj8jj";
-  })
-  (fetchNuGet {
-    pname = "Microsoft.NETCore.App.Host.win-x64";
-    version = "6.0.26";
-    sha256 = "0i7g9fsqjnbh9rc6807m57r2idg5pkcw6xjfwhnxkcpgqm96258v";
-  })
-  (fetchNuGet {
-    pname = "Microsoft.NETCore.App.Host.win-x64";
-    version = "8.0.1";
-    sha256 = "1ssj1cyam3nfidm8q82kvh4i3fzm2lzb3bxw6ck09hwhvwh909z4";
-  })
   (fetchNuGet {
     pname = "Microsoft.NETCore.App.Ref";
     version = "6.0.26";
     sha256 = "12gb52dhg5h9hgnyqh1zgj2w46paxv2pfh33pphl9ajhrdr7hlsb";
   })
-  (fetchNuGet {
-    pname = "Microsoft.NETCore.App.Ref";
-    version = "8.0.1";
-    sha256 = "02r4jg4ha0qksix9v6s3cpmvavmz54gkawkxy9bvknw5ynxhhl1l";
-  })
   (fetchNuGet {
     pname = "Microsoft.NETCore.App.Runtime.linux-arm64";
     version = "6.0.26";
     sha256 = "164hfrwqz5dxcbb441lridk4mzcqmarb0b7ckgvqhsvpawyjw88v";
   })
-  (fetchNuGet {
-    pname = "Microsoft.NETCore.App.Runtime.linux-arm64";
-    version = "8.0.1";
-    sha256 = "0353whnjgz3sqhzsfrviad3a3db4pk7hl7m4wwppv5mqdg9i9ri5";
-  })
   (fetchNuGet {
     pname = "Microsoft.NETCore.App.Runtime.linux-x64";
     version = "6.0.26";
     sha256 = "0islayddpnflviqpbq4djc4f3v9nhsa2y76k5x6il3csq5vdw2hq";
   })
-  (fetchNuGet {
-    pname = "Microsoft.NETCore.App.Runtime.linux-x64";
-    version = "8.0.1";
-    sha256 = "1g5b30f4l8a1zjjr3b8pk9mcqxkxqwa86362f84646xaj4iw3a4d";
-  })
   (fetchNuGet {
     pname = "Microsoft.NETCore.App.Runtime.osx-arm64";
     version = "6.0.26";
     sha256 = "1acn5zw1pxzmcg3c0pbf9hal36fbdh9mvbsiwra7simrk7hzqpdc";
   })
-  (fetchNuGet {
-    pname = "Microsoft.NETCore.App.Runtime.osx-arm64";
-    version = "8.0.1";
-    sha256 = "0cdrpdaq5sl3602anfx1p0z0ncx2sjjvl6mgsd6y38g47n7f95jc";
-  })
   (fetchNuGet {
     pname = "Microsoft.NETCore.App.Runtime.osx-x64";
     version = "6.0.26";
     sha256 = "00f9l9dkdz0zv5csaw8fkm6s8ckrj5n9k3ygz12daa22l3bcn6ii";
   })
-  (fetchNuGet {
-    pname = "Microsoft.NETCore.App.Runtime.osx-x64";
-    version = "8.0.1";
-    sha256 = "1fk1flqp6ji0l4c2gvh83ykndpx7a2nkkgrgkgql3c75j1k2v1s9";
-  })
-  (fetchNuGet {
-    pname = "Microsoft.NETCore.App.Runtime.win-x64";
-    version = "6.0.26";
-    sha256 = "0i2p356phfc5y6qnr3vyrzjfi1mrbwfb6g85k4q37bbyxjfp7zl9";
-  })
-  (fetchNuGet {
-    pname = "Microsoft.NETCore.App.Runtime.win-x64";
-    version = "8.0.1";
-    sha256 = "198576cdkl72xs29zznff9ls763p8pfr0zji7b74dqxd5ga0s3bd";
-  })
   (fetchNuGet {
     pname = "Microsoft.NETCore.Platforms";
     version = "1.1.0";
@@ -256,16 +151,6 @@
     version = "1.1.3";
     sha256 = "05smkcyxir59rgrmp7d6327vvrlacdgldfxhmyr1azclvga1zfsq";
   })
-  (fetchNuGet {
-    pname = "Microsoft.SourceLink.Common";
-    version = "8.0.0";
-    sha256 = "0xrr8yd34ij7dqnyddkp2awfmf9qn3c89xmw2f3npaa4wnajmx81";
-  })
-  (fetchNuGet {
-    pname = "Microsoft.SourceLink.GitHub";
-    version = "8.0.0";
-    sha256 = "1gdx7n45wwia3yvang3ls92sk3wrymqcx9p349j8wba2lyjf9m44";
-  })
   (fetchNuGet {
     pname = "Microsoft.TestPlatform.ObjectModel";
     version = "17.10.0";
@@ -288,8 +173,8 @@
   })
   (fetchNuGet {
     pname = "Nerdbank.GitVersioning";
-    version = "3.6.133";
+    version = "3.6.139";
-    sha256 = "1cdw8krvsnx0n34f7fm5hiiy7bs6h3asvncqcikc0g46l50w2j80";
+    sha256 = "0npcryhq3r0c2zi940jk39h13mzc4hyg7z8gm6jdmxi1aqv1vh8c";
   })
   (fetchNuGet {
     pname = "NETStandard.Library";

nix/fetchDeps.sh

@@ -1,73 +0,0 @@
-#!/bin/bash
-
-# This file was adapted from
-# https://github.com/NixOS/nixpkgs/blob/b981d811453ab84fb3ea593a9b33b960f1ab9147/pkgs/build-support/dotnet/build-dotnet-module/default.nix#L173
-set -euo pipefail
-export PATH="@binPath@"
-for arg in "$@"; do
-    case "$arg" in
-        --keep-sources|-k)
-            keepSources=1
-            shift
-            ;;
-        --help|-h)
-            echo "usage: $0 [--keep-sources] [--help] <output path>"
-            echo "    <output path>   The path to write the lockfile to. A temporary file is used if this is not set"
-            echo "    --keep-sources  Don't remove temporary directories upon exit, useful for debugging"
-            echo "    --help          Show this help message"
-            exit
-            ;;
-    esac
-done
-tmp=$(mktemp -td "@pname@-tmp-XXXXXX")
-export tmp
-HOME=$tmp/home
-exitTrap() {
-    test -n "${ranTrap-}" && return
-    ranTrap=1
-    if test -n "${keepSources-}"; then
-        echo -e "Path to the source: $tmp/src\nPath to the fake home: $tmp/home"
-    else
-        rm -rf "$tmp"
-    fi
-    # Since mktemp is used this will be empty if the script didnt succesfully complete
-    if ! test -s "$depsFile"; then
-      rm -rf "$depsFile"
-    fi
-}
-trap exitTrap EXIT INT TERM
-dotnetRestore() {
-    local -r project="${1-}"
-    local -r rid="$2"
-    dotnet restore "${project-}" \
-        -p:ContinuousIntegrationBuild=true \
-        -p:Deterministic=true \
-        --packages "$tmp/nuget_pkgs" \
-        --runtime "$rid" \
-        --no-cache \
-        --force
-}
-declare -a projectFiles=( @projectFiles@ )
-declare -a testProjectFiles=( @testProjectFiles@ )
-export DOTNET_NOLOGO=1
-export DOTNET_CLI_TELEMETRY_OPTOUT=1
-depsFile=$(realpath "${1:-$(mktemp -t "@pname@-deps-XXXXXX.nix")}")
-mkdir -p "$tmp/nuget_pkgs"
-storeSrc="@storeSrc@"
-src="$tmp/src"
-cp -rT "$storeSrc" "$src"
-chmod -R +w "$src"
-cd "$src"
-echo "Restoring project..."
-rids=("@rids@")
-for rid in "${rids[@]}"; do
-    (( ${#projectFiles[@]} == 0 )) && dotnetRestore "" "$rid"
-    for project in "${projectFiles[@]-}" "${testProjectFiles[@]-}"; do
-        dotnetRestore "$project" "$rid"
-    done
-done
-echo "Successfully restored project"
-echo "Writing lockfile..."
-echo -e "# This file was automatically generated by passthru.fetch-deps.\n# Please don't edit it manually, your changes might get overwritten!\n" > "$depsFile"
-nuget-to-nix "$tmp/nuget_pkgs" "@packages@" >> "$depsFile"
-echo "Successfully wrote lockfile to $depsFile"