feat: add ability to call rust from flutter/dart

.gitignore

@@ -11,6 +11,8 @@
 .svn/
 .swiftpm/
 migrate_working_dir/
+.hermit/
+.build/
 
 # IntelliJ related
 *.iml

Justfile

@@ -1,4 +1,6 @@
 _help:
+  @just -l
+
 
 # Run the Flutter app
 run:
@@ -9,6 +11,8 @@ get:
   #!/bin/bash
   echo "Getting dependencies for main project"
   flutter pub get
+  cd rust_builder
+  dart pub get
 
 # Clean the project
 clean:
@@ -37,3 +41,7 @@ coverage:
   flutter test --coverage
   genhtml coverage/lcov.info -o coverage/html
   open coverage/html/index.html
+
+# Generate the Rust bindings
+generate-rust:
+  flutter_rust_bridge_codegen generate

bin/.rustup-1.25.2.pkg

@@ -0,0 +1 @@
+hermit

bin/cargo

@@ -0,0 +1 @@
+.rustup-1.25.2.pkg

bin/cargo-clippy

@@ -0,0 +1 @@
+.rustup-1.25.2.pkg

bin/cargo-fmt

@@ -0,0 +1 @@
+.rustup-1.25.2.pkg

bin/cargo-miri

@@ -0,0 +1 @@
+.rustup-1.25.2.pkg

bin/clippy-driver

@@ -0,0 +1 @@
+.rustup-1.25.2.pkg

bin/rls

@@ -0,0 +1 @@
+.rustup-1.25.2.pkg

bin/rust-analyzer

@@ -0,0 +1 @@
+.rustup-1.25.2.pkg

bin/rust-gdb

@@ -0,0 +1 @@
+.rustup-1.25.2.pkg

bin/rust-gdbgui

@@ -0,0 +1 @@
+.rustup-1.25.2.pkg

bin/rust-lldb

@@ -0,0 +1 @@
+.rustup-1.25.2.pkg

bin/rustc

@@ -0,0 +1 @@
+.rustup-1.25.2.pkg

bin/rustdoc

@@ -0,0 +1 @@
+.rustup-1.25.2.pkg

bin/rustfmt

@@ -0,0 +1 @@
+.rustup-1.25.2.pkg

bin/rustup

@@ -0,0 +1 @@
+.rustup-1.25.2.pkg

flutter_rust_bridge.yaml

@@ -0,0 +1,3 @@
+rust_input: crate::api
+rust_root: rust/
+dart_output: lib/generated/rust

integration_test/simple_test.dart

@@ -0,0 +1,13 @@
+// import 'package:flutter_test/flutter_test.dart';
+// import 'package:gosling/main.dart';
+// import 'package:gosling/src/rust/frb_generated.dart';
+// import 'package:integration_test/integration_test.dart';
+
+// void main() {
+//   IntegrationTestWidgetsFlutterBinding.ensureInitialized();
+//   setUpAll(() async => await RustLib.init());
+//   testWidgets('Can call rust function', (WidgetTester tester) async {
+//     await tester.pumpWidget(const App());
+//     expect(find.textContaining('Result: `Hello, Tom!`'), findsOneWidget);
+//   });
+// }

ios/Flutter/Debug.xcconfig

@@ -1 +1,2 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
 #include "Generated.xcconfig"

ios/Flutter/Release.xcconfig

@@ -1 +1,2 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
 #include "Generated.xcconfig"

ios/Podfile

@@ -0,0 +1,44 @@
+# Uncomment this line to define a global platform for your project
+platform :ios, '12.0'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def flutter_root
+  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'Generated.xcconfig'), __FILE__)
+  unless File.exist?(generated_xcode_build_settings_path)
+    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure flutter pub get is executed first"
+  end
+
+  File.foreach(generated_xcode_build_settings_path) do |line|
+    matches = line.match(/FLUTTER_ROOT\=(.*)/)
+    return matches[1].strip if matches
+  end
+  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Generated.xcconfig, then run flutter pub get"
+end
+
+require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
+
+flutter_ios_podfile_setup
+
+target 'Runner' do
+  use_frameworks!
+  use_modular_headers!
+
+  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
+  target 'RunnerTests' do
+    inherit! :search_paths
+  end
+end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    flutter_additional_ios_build_settings(target)
+  end
+end

ios/Podfile.lock

@@ -0,0 +1,28 @@
+PODS:
+  - Flutter (1.0.0)
+  - integration_test (0.0.1):
+    - Flutter
+  - rust_lib_gosling (0.0.1):
+    - Flutter
+
+DEPENDENCIES:
+  - Flutter (from `Flutter`)
+  - integration_test (from `.symlinks/plugins/integration_test/ios`)
+  - rust_lib_gosling (from `.symlinks/plugins/rust_lib_gosling/ios`)
+
+EXTERNAL SOURCES:
+  Flutter:
+    :path: Flutter
+  integration_test:
+    :path: ".symlinks/plugins/integration_test/ios"
+  rust_lib_gosling:
+    :path: ".symlinks/plugins/rust_lib_gosling/ios"
+
+SPEC CHECKSUMS:
+  Flutter: e0871f40cf51350855a761d2e70bf5af5b9b5de7
+  integration_test: 4a889634ef21a45d28d50d622cf412dc6d9f586e
+  rust_lib_gosling: 1f11f1eec61a455deafbad34b6581582fba8f9d4
+
+PODFILE CHECKSUM: 7be2f5f74864d463a8ad433546ed1de7e0f29aef
+
+COCOAPODS: 1.16.2