[ffigen] Move core ObjC classes to package:objective_c

.github/workflows/ffigen.yml

@@ -99,7 +99,7 @@ jobs:
       - name: Upload coverage
         uses: coverallsapp/github-action@3dfc5567390f6fa9267c0ee9c251e4c8c3f18949
         with:
-          carryforward: "jnigen_tests,jni_tests,native_assets_builder_macos,native_assets_builder_ubuntu,native_assets_builder_windows,native_assets_cli_macos,native_assets_cli_ubuntu,native_assets_cli_windows,native_toolchain_c_macos,native_toolchain_c_ubuntu,native_toolchain_c_windows"
+          carryforward: "objective_c_tests,ffigen_macos,jnigen_tests,jni_tests,native_assets_builder_macos,native_assets_builder_ubuntu,native_assets_builder_windows,native_assets_cli_macos,native_assets_cli_ubuntu,native_assets_cli_windows,native_toolchain_c_macos,native_toolchain_c_ubuntu,native_toolchain_c_windows"
           github-token: ${{ secrets.GITHUB_TOKEN }}
           parallel-finished: true
 

.github/workflows/health_flutter.yaml

@@ -7,6 +7,7 @@ on:
       - "pkgs/ffigen/**"
       - "pkgs/jni/**"
       - "pkgs/jnigen/**"
+      - "pkgs/objective_c/**"
     types: [opened, synchronize, reopened, labeled, unlabeled]
 jobs:
   health:

.github/workflows/jnigen.yaml

@@ -424,6 +424,6 @@ jobs:
       - name: Coveralls finished
         uses: coverallsapp/github-action@3dfc5567390f6fa9267c0ee9c251e4c8c3f18949
         with:
-          carryforward: "ffigen_macos,native_assets_builder_macos,native_assets_builder_ubuntu,native_assets_builder_windows,native_assets_cli_macos,native_assets_cli_ubuntu,native_assets_cli_windows,native_toolchain_c_macos,native_toolchain_c_ubuntu,native_toolchain_c_windows"
+          carryforward: "objective_c_tests,ffigen_macos,jnigen_tests,jni_tests,native_assets_builder_macos,native_assets_builder_ubuntu,native_assets_builder_windows,native_assets_cli_macos,native_assets_cli_ubuntu,native_assets_cli_windows,native_toolchain_c_macos,native_toolchain_c_ubuntu,native_toolchain_c_windows"
           github-token: ${{ secrets.github_token }}
           parallel-finished: true

.github/workflows/native.yaml

@@ -145,6 +145,6 @@ jobs:
       - name: Upload coverage
         uses: coverallsapp/github-action@3dfc5567390f6fa9267c0ee9c251e4c8c3f18949
         with:
-          carryforward: "ffigen_macos,jnigen_tests,jni_tests"
+          carryforward: "objective_c_tests,ffigen_macos,jnigen_tests,jni_tests,native_assets_builder_macos,native_assets_builder_ubuntu,native_assets_builder_windows,native_assets_cli_macos,native_assets_cli_ubuntu,native_assets_cli_windows,native_toolchain_c_macos,native_toolchain_c_ubuntu,native_toolchain_c_windows"
           github-token: ${{ secrets.GITHUB_TOKEN }}
           parallel-finished: true

.github/workflows/objective_c.yaml

@@ -42,3 +42,35 @@ jobs:
       - name: Analyze code
         run: flutter analyze --fatal-infos
         if: always() && steps.install.outcome == 'success'
+
+  test-mac:
+    needs: analyze
+    runs-on: 'macos-latest'
+    defaults:
+      run:
+        working-directory: pkgs/objective_c/
+    steps:
+      - uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633
+      - uses: subosito/flutter-action@44ac965b96f18d999802d4b807e3256d5a3f9fa1
+        with:
+          flutter-version: 3.19.0
+          channel: 'stable'
+      - name: Install dependencies
+        run: flutter pub get
+      - name: Run VM tests
+        run: dart test
+      - name: Collect coverage
+        run: ./tool/coverage.sh
+      - name: Upload coverage
+        uses: coverallsapp/github-action@3dfc5567390f6fa9267c0ee9c251e4c8c3f18949
+        with:
+          flag-name: objective_c_tests
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          parallel: true
+          path-to-lcov: pkgs/objective_c/lcov.info
+      - name: Upload coverage
+        uses: coverallsapp/github-action@3dfc5567390f6fa9267c0ee9c251e4c8c3f18949
+        with:
+          carryforward: "objective_c_tests,ffigen_macos,jnigen_tests,jni_tests,native_assets_builder_macos,native_assets_builder_ubuntu,native_assets_builder_windows,native_assets_cli_macos,native_assets_cli_ubuntu,native_assets_cli_windows,native_toolchain_c_macos,native_toolchain_c_ubuntu,native_toolchain_c_windows"
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          parallel-finished: true

pkgs/ffigen/CHANGELOG.md

@@ -9,6 +9,7 @@
 - __Breaking change__: Use `package:objective_c` in ObjC bindings.
   - ObjC packages will have a flutter dependency (until
     https://github.com/dart-lang/native/issues/1068 is fixed).
+  - Core classes such as `NSString` have been moved intpu `package:objective_c`.
   - ObjC class methods don't need the ubiquitous `lib` argument anymore. In
     fact, ffigen won't even generate the native library class (unless it needs
     to bind top level functions without using `@Native`). It is still necessary
@@ -21,6 +22,11 @@
     - Regardless of whether the native library class still exists, delete the
       `lib` parameter from all ObjC object constructors and static method calls
       and block constructors.
+    - If core ObjC classes such as `NSString` are being used,
+      `package:objective_c` must be imported, as they won't be exported by the
+      generated bindings.
+- Add --[no-]format option to ffigen command line, which controls whether the
+  formatting step happens. Defaults to true.
 
 ## 11.0.0