Merge branch 'main' into chore/xunit-v3

Author: dbrattli

.config/dotnet-tools.json

@@ -3,7 +3,7 @@
   "isRoot": true,
   "tools": {
     "fantomas": {
-      "version": "7.0.5",
+      "version": "7.0.6",
       "commands": [
         "fantomas"
       ],
@@ -17,14 +17,14 @@
       "rollForward": false
     },
     "fsharp-analyzers": {
-      "version": "0.36.0",
+      "version": "0.37.2",
       "commands": [
         "fsharp-analyzers"
       ],
       "rollForward": false
     },
     "easybuild.shipit": {
-      "version": "3.0.0",
+      "version": "3.0.1",
       "commands": [
         "shipit"
       ],

.devcontainer/Dockerfile

@@ -25,7 +25,8 @@ RUN apt-get update && apt-get install -y xz-utils
 # Options
 # Let it here to avoid conflicts with Microsoft options !!!
 ARG DOTNET_VERSION=10.0.100
-ARG NODE_VERSION=18.8.0
+# Keep in sync with the "engines.node" field in package.json
+ARG NODE_VERSION=26
 ARG PYTHON_VERSION=3.12
 ARG DART_VERSION=3.1.2
 

.github/dependabot.yml

@@ -44,7 +44,7 @@ updates:
         patterns:
           - "*"
 
-  - package-ecosystem: "pip"
+  - package-ecosystem: "uv"
     directory: "/"
     schedule:
       interval: "weekly"
@@ -56,7 +56,7 @@ updates:
         patterns:
           - "*"
 
-  - package-ecosystem: "pip"
+  - package-ecosystem: "uv"
     directory: "/src/fable-library-py"
     schedule:
       interval: "weekly"
@@ -85,6 +85,12 @@ updates:
         update-types: ["version-update:semver-major"]
       - dependency-name: "react-dom"
         update-types: ["version-update:semver-major"]
+      # Babel 8 plugins require @babel/core@^8, but jest still pulls in
+      # @babel/core@7.x transitively — upgrading them independently breaks
+      # npm install (peer conflict). Move the whole toolchain to Babel 8
+      # manually when jest supports it.
+      - dependency-name: "@babel/*"
+        update-types: ["version-update:semver-major"]
 
   - package-ecosystem: "cargo"
     directory: "/src/fable-library-rust"

.github/workflows/build.yml

@@ -22,10 +22,10 @@ jobs:
     timeout-minutes: 15
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7.0.1
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v5
+        uses: actions/setup-dotnet@v6
         with:
           global-json-file: global.json
 
@@ -43,10 +43,10 @@ jobs:
     timeout-minutes: 15
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7.0.1
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v5
+        uses: actions/setup-dotnet@v6
         with:
           global-json-file: global.json
 
@@ -55,22 +55,27 @@ jobs:
 
   # Separate build job for JavaScript
   build-javascript:
-    timeout-minutes: 60
+    # Expecto has been hanging randomly (started a few days ago, cause unknown) - keep this
+    # tight so a hang fails fast instead of burning the full hour. See:
+    # https://github.com/fable-compiler/Fable/actions/runs/28803363016/job/85412364876
+    timeout-minutes: 10
     strategy:
       matrix:
         platform: [ubuntu-latest, windows-latest]
     runs-on: ${{ matrix.platform }}
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7.0.1
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v5
+        uses: actions/setup-dotnet@v6
         with:
           global-json-file: global.json
 
       - name: Setup Node.js environment
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@v7
+        with:
+          node-version-file: package.json
 
       - name: Fable Tests - JavaScript (linux)
         if: matrix.platform == 'ubuntu-latest'
@@ -86,15 +91,17 @@ jobs:
     timeout-minutes: 45
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7.0.1
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v5
+        uses: actions/setup-dotnet@v6
         with:
           global-json-file: global.json
 
       - name: Setup Node.js environment
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@v7
+        with:
+          node-version-file: package.json
 
       - name: Fable Tests - TypeScript
         run: ./build.sh test typescript
@@ -108,15 +115,17 @@ jobs:
     timeout-minutes: 45
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7.0.1
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v5
+        uses: actions/setup-dotnet@v6
         with:
           global-json-file: global.json
 
       - name: Setup Node.js environment
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@v7
+        with:
+          node-version-file: package.json
 
       - name: Fable Tests
         run: ./build.sh test integration
@@ -127,15 +136,17 @@ jobs:
     timeout-minutes: 30
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7.0.1
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v5
+        uses: actions/setup-dotnet@v6
         with:
           global-json-file: global.json
 
       - name: Setup Node.js environment
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@v7
+        with:
+          node-version-file: package.json
 
       - name: Fable Tests
         run: ./build.sh test standalone
@@ -152,15 +163,15 @@ jobs:
       UV_LINK_MODE: copy
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7.0.1
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v5
+        uses: actions/setup-dotnet@v6
         with:
           global-json-file: global.json
 
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@v7
         with:
           python-version: ${{ matrix.python-version }}
 
@@ -176,6 +187,15 @@ jobs:
         if: matrix.platform == 'ubuntu-latest'
         run: ./build.sh fable-library --python
 
+      # PEP 561 requires the marker inside the package directory. CopyStage filters
+      # by extension, so it is easy to drop again; without it mypy refuses to read
+      # the core/*.pyi stubs at all.
+      - name: PEP 561 marker survives staging
+        if: matrix.platform == 'ubuntu-latest'
+        run: |
+          test -f temp/fable-library-py/fable_library/py.typed \
+            || { echo "::error::fable_library/py.typed missing from staged package; stubs would be inert for mypy"; exit 1; }
+
       - name: Fable Library - Python (Windows)
         if: matrix.platform == 'windows-latest'
         run: .\build.bat fable-library --python
@@ -188,24 +208,84 @@ jobs:
         if: matrix.platform == 'windows-latest'
         run: .\build.bat test python
 
+  # Native/Rust-extension unit tests for the published fable-library package.
+  # These live in src/fable-library-py/tests and exercise hand-written sources
+  # (fable_library.core, .union, .util) only, so no F# transpilation is needed.
+  # Previously this ran in publish-pypi.yml, where a failure was only visible
+  # at release time and did not actually gate the publish.
+  test-fable-library-py:
+    timeout-minutes: 30
+    strategy:
+      fail-fast: false
+      matrix:
+        platform: [ubuntu-latest, windows-latest, macos-latest]
+        python-version: ["3.12", "3.13", "3.14"]
+    runs-on: ${{ matrix.platform }}
+    env:
+      UV_LINK_MODE: copy
+
+    steps:
+      - uses: actions/checkout@v7.0.1
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v7
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Set up uv
+        uses: astral-sh/setup-uv@v7
+        with:
+          enable-cache: true
+
+      - name: Build extension and run tests
+        working-directory: ./src/fable-library-py
+        run: |
+          uv sync --frozen
+          uv run --frozen maturin develop --release
+          uv run --frozen pytest tests
+
+  # Formatting gate for the fable-library-py Rust extension. Deliberately a
+  # separate job rather than a step in test-fable-library-py, so it runs once
+  # instead of once per cell of that job's 3x3 platform/Python matrix.
+  lint-fable-library-py:
+    timeout-minutes: 10
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v7.0.1
+
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt
+
+      - name: Check formatting
+        working-directory: ./src/fable-library-py
+        run: cargo fmt --check
+
   # Separate build job for Rust (will run in parallel)
   build-rust:
     timeout-minutes: 75
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        test: ["default", "no_std", "threaded"]
+        features: [",", "no_std", "threaded", "lrc_ptr"]
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7.0.1
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v5
+        uses: actions/setup-dotnet@v6
         with:
           global-json-file: global.json
 
       - name: Setup Node.js environment
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@v7
+        with:
+          node-version-file: package.json
 
       - name: Setup Rust toolchain
         uses: dtolnay/rust-toolchain@stable
@@ -216,18 +296,18 @@ jobs:
         run: ./build.sh fable-library --rust
 
       - name: Fable Tests - Rust
-        run: ./build.sh test rust --${{ matrix.test }}
+        run: ./build.sh test rust --features "${{ matrix.features }}"
 
   # Separate build job for Dart
   build-dart:
     runs-on: ubuntu-latest
     timeout-minutes: 45
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7.0.1
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v5
+        uses: actions/setup-dotnet@v6
         with:
           global-json-file: global.json
 
@@ -243,10 +323,10 @@ jobs:
     timeout-minutes: 45
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7.0.1
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v5
+        uses: actions/setup-dotnet@v6
         with:
           global-json-file: global.json
 
@@ -275,10 +355,10 @@ jobs:
           ]
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7.0.1
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v5
+        uses: actions/setup-dotnet@v6
         with:
           global-json-file: global.json
 

.github/workflows/claude.yml

@@ -31,7 +31,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7.0.1
 
       - name: Run Claude Code Action
         uses: anthropics/claude-code-action@v1

.github/workflows/commands.yml

@@ -39,13 +39,13 @@ jobs:
             });
             return { "ref": result.data.head.ref, "repository": result.data.head.repo.full_name};
       - name: Checkout repo
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7.0.1
         with:
           repository: ${{ fromJson(steps.get-pr.outputs.result).repository }}
           ref: ${{ fromJson(steps.get-pr.outputs.result).ref }}
           fetch-depth: 0
       - name: Install dotnet
-        uses: actions/setup-dotnet@v5
+        uses: actions/setup-dotnet@v6
       - name: Install dotnet tools
         run: dotnet tool restore
       - name: Process fantomas command

.github/workflows/conventional-pr-title.yml

@@ -21,4 +21,4 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           scopes: |
-            (?:all|(?:js|ts|dart|python|rust|beam)(?:/(?:js|ts|dart|python|rust|beam))*)
+            (?:all|(?:js|ts|dart|python|rust|beam|standalone)(?:/(?:js|ts|dart|python|rust|beam|standalone))*)