Add Dart workflows

.github/workflows/build-test.yml

@@ -323,7 +323,10 @@ jobs:
 
   # ci-job-test-dart
   test-dart:
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        os: [ ubuntu-latest, macos-latest, windows-latest ]
+    runs-on: ${{ matrix.os }}
 
     steps:
     - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
@@ -345,10 +348,33 @@ jobs:
     - uses: dart-lang/setup-dart@0a8a0fc875eb934c15d08629302413c671d3f672 # v1.6.5
       with:
         sdk: ${{ github.event_name != 'schedule' && '3.9.0-138.0.dev' || 'dev' }}
+    - name: Install yq if Windows
+      if: ${{ matrix.os == 'windows-latest' }}
+      run: choco install yq
 
     # Actual job
     - name: Run `cargo make ci-job-test-dart`
       run: cargo make ci-job-test-dart
+
+    - name: Run `cargo make ci-job-test-dart` in local mode
+      run: |
+        cp ffi/dart/.dart_tool/native_assets/lib/* dylib
+        yq -i ".hooks.user_defines.icu4x.buildMode = \"local\"" ffi/dart/pubspec.yaml
+        yq -i ".hooks.user_defines.icu4x.localPath = \"file://$(realpath dylib)\"" ffi/dart/pubspec.yaml
+        yq -i ".hooks.user_defines.icu4x.buildMode = \"local\"" examples/dart/pubspec.yaml
+        yq -i ".hooks.user_defines.icu4x.localPath = \"file://$(realpath dylib)\"" examples/dart/pubspec.yaml
+        cargo make ci-job-test-dart
+        rm dylib
+
+    - name: Run `cargo make ci-job-test-dart` in fetch mode
+      # Only run if not PR, or if PR and skip_fetch is false
+      # TODO: Uncomment this after releasing artifacts.
+      # if: github.event_name != 'pull_request' || needs.check_skip_fetch.outputs.skip_fetch == 'false'
+      if: false
+      run: |
+        yq -i ".hooks.user_defines.icu4x.buildMode = \"fetch\"" ffi/dart/pubspec.yaml
+        yq -i ".hooks.user_defines.icu4x.buildMode = \"fetch\"" examples/dart/pubspec.yaml
+        cargo make ci-job-test-dart
 
 
   # ci-job-nostd

examples/dart/.gitignore

@@ -1,3 +1,4 @@
 # https://dart.dev/guides/libraries/private-files
 # Created by `dart pub`
 .dart_tool/
+bin/example/

examples/dart/pubspec.lock

@@ -21,10 +21,10 @@ packages:
     dependency: transitive
     description:
       name: code_assets
-      sha256: dd7ed641b7f642092092969f2dcd5845ab31c9f3efead0c06ca437bf9ce8a8b2
+      sha256: "7f42899e7b22f7810ea8c2b281c979add25555fbe391dde539621069e20b90b4"
       url: "https://pub.dev"
     source: hosted
-    version: "0.19.4"
+    version: "0.19.5"
   collection:
     dependency: transitive
     description:
@@ -69,17 +69,17 @@ packages:
     dependency: transitive
     description:
       name: hooks
-      sha256: "75363eae6c0c2db051c4f6b3b1fcdea8a09c4a596cc83bfff847661da6e80dfc"
+      sha256: "2bd640e4625fdfe5788ef33d825a8639797d44bce05695ab13543cde0ff9a078"
       url: "https://pub.dev"
     source: hosted
-    version: "0.19.5"
+    version: "0.20.0"
   icu4x:
     dependency: "direct main"
     description:
       path: "../../ffi/dart"
       relative: true
     source: path
-    version: "0.1.0-dev"
+    version: "2.0.0-dev.0"
   logging:
     dependency: transitive
     description:
@@ -100,10 +100,10 @@ packages:
     dependency: transitive
     description:
       name: native_toolchain_c
-      sha256: "74a0c80d877c519bc6bde2c4e27b6b01c1f93c9b480f65ceae8bedd3aba3c086"
+      sha256: "7e8358a4f6ec69a4f2d366bb971af298aca50d6c2e8a07be7c12d7f6d40460aa"
       url: "https://pub.dev"
     source: hosted
-    version: "0.16.8"
+    version: "0.17.1"
   path:
     dependency: transitive
     description:

ffi/dart/lib/src/hook_helpers/build_libs.dart

@@ -79,15 +79,25 @@ Future<File> buildLib(
 
   final isNoStd = _isNoStdTarget((targetOS, targetArchitecture));
   final target = _asRustTarget(targetOS, targetArchitecture, isSimulator);
-  if (!isNoStd) {
-    final rustArguments = ['target', 'add', target];
-    await runProcess(
-      'rustup',
-      rustArguments,
-      workingDirectory: workingDirectory,
-    );
+
+  if (buildStatic || isNoStd) {
+    await runProcess('rustup', [
+      'toolchain',
+      'install',
+      '--no-self-update',
+      'nightly',
+      '--component',
+      'rust-src',
+    ], workingDirectory: workingDirectory);
   }
 
+  await runProcess('rustup', [
+    'target',
+    'add',
+    target,
+    if (buildStatic || isNoStd) ...['--toolchain', 'nightly'],
+  ], workingDirectory: workingDirectory);
+
   final additionalFeatures = isNoStd
       ? ['libc_alloc', 'looping_panic_handler']
       : ['simple_logger'];

ffi/dart/pubspec.yaml

@@ -35,7 +35,6 @@ dependencies:
 dev_dependencies:
   dart_flutter_team_lints: ^3.5.2
   test: ^1.21.0
-  yaml_edit: ^2.2.2
 
 hooks:
   user_defines:

tools/make/ffi.toml

@@ -60,13 +60,32 @@ args = ["-C", "examples/js-tiny", "test"]
 [tasks.test-dart]
 description = "Run Dart tests"
 category = "ICU4X Development"
-cwd = "ffi/dart"
 script_runner = "@duckscript"
 script = '''
+cd ffi/dart
 exec --fail-on-error dart pub get
 exec --fail-on-error dart format --set-exit-if-changed .
 exec --fail-on-error dart analyze
-exec --fail-on-error dart --enable-experiment=native-assets test
+exec --fail-on-error dart --enable-experiment=native-assets --enable-experiment=record-use test
+cd ../..
+
+cd examples/dart
+exec --fail-on-error dart pub get
+exec --fail-on-error dart format --set-exit-if-changed .
+exec --fail-on-error dart analyze
+exec --fail-on-error dart --enable-experiment=native-assets --enable-experiment=record-use build bin/example.dart
+exec --fail-on-error bin/example/example.exe
+libs = glob_array ./bin/example/lib/*
+lib = array_pop ${libs}
+size = filesize ${lib}
+println ${size} "bytes"
+pubspec = readfile pubspec.yaml
+is_local = contains ${pubspec} "buildMode: local"
+if not ${is_local} # local dylib is not treeshaken
+    if greater_than ${size} 10000000
+        trigger_error "Dart example binary >10MB"
+    end
+end
 '''
 
 # no_std tasks