Added support for some debugging APIs with the DDC library bundle format

dwds/CHANGELOG.md

@@ -1,6 +1,7 @@
 ## 24.2.1-wip
 
 - Update to be forward compatible with changes to `package:shelf_web_socket`.
+- Added support for some debugging APIs with the DDC library bundle format. - [#2537](https://github.com/dart-lang/webdev/issues/2537)
 
 ## 24.2.0
 

dwds/lib/src/debugging/dart_runtime_debugger.dart

@@ -107,4 +107,57 @@ class DartRuntimeDebugger {
     // Use the helper method to wrap this in an IIFE
     return _wrapInIIFE(expression);
   }
+
+  /// Generates a JS expression for retrieving Dart Developer Extension Names.
+  String getDartDeveloperExtensionNamesJsExpression() {
+    return _generateJsExpression(
+      "${_loadStrategy.loadModuleSnippet}('dart_sdk').developer._extensions.keys.toList();",
+      'dartDevEmbedder.debugger.extensionNames',
+    );
+  }
+
+  /// Generates a JS expression for retrieving metadata of classes in a library.
+  String getClassesInLibraryJsExpression(String libraryUri) {
+    final expression = _buildExpression(
+      '',
+      "getLibraryMetadata('$libraryUri')",
+      "getClassesInLibrary('$libraryUri')",
+    );
+    // Use the helper method to wrap this in an IIFE
+    return _wrapInIIFE(expression);
+  }
+
+  /// Generates a JS expression for retrieving map elements.
+  String getMapElementsJsExpression() {
+    return _buildExpression(
+      '',
+      'getMapElements(this)',
+      'getMapElements(this)',
+    );
+  }
+
+  /// Generates a JS expression for getting a property from a JS object.
+  String getPropertyJsExpression(String fieldName) {
+    return _generateJsExpression(
+      '''
+      function() {
+        return this["$fieldName"];
+      }
+      ''',
+      '''
+      function() {
+        return this["$fieldName"];
+      }
+      ''',
+    );
+  }
+
+  /// Generates a JS expression for retrieving set elements.
+  String getSetElementsJsExpression() {
+    return _buildExpression(
+      '',
+      'getSetElements(this)',
+      'getSetElements(this)',
+    );
+  }
 }

dwds/lib/src/debugging/inspector.dart

@@ -192,11 +192,8 @@ class AppInspector implements AppInspectorInterface {
   /// Get the value of the field named [fieldName] from [receiver].
   @override
   Future<RemoteObject> loadField(RemoteObject receiver, String fieldName) {
-    final load = '''
-        function() {
-          return ${globalToolConfiguration.loadStrategy.loadModuleSnippet}("dart_sdk").dart.dloadRepl(this, "$fieldName");
-        }
-        ''';
+    final load = globalToolConfiguration.loadStrategy.dartRuntimeDebugger
+        .getPropertyJsExpression(fieldName);
     return jsCallFunctionOn(receiver, load, []);
   }
 
@@ -748,8 +745,8 @@ class AppInspector implements AppInspectorInterface {
 
   /// Runs an eval on the page to compute all existing registered extensions.
   Future<List<String>> _getExtensionRpcs() async {
-    final expression =
-        "${globalToolConfiguration.loadStrategy.loadModuleSnippet}('dart_sdk').developer._extensions.keys.toList();";
+    final expression = globalToolConfiguration.loadStrategy.dartRuntimeDebugger
+        .getDartDeveloperExtensionNamesJsExpression();
     final extensionRpcs = <String>[];
     final params = {
       'expression': expression,

dwds/lib/src/debugging/instance.dart

@@ -306,7 +306,8 @@ class InstanceHelper extends Domain {
     // We do this in in awkward way because we want the keys and values, but we
     // can't return things by value or some Dart objects will come back as
     // values that we need to be RemoteObject, e.g. a List of int.
-    final expression = _jsRuntimeFunctionCall('getMapElements(this)');
+    final expression = globalToolConfiguration.loadStrategy.dartRuntimeDebugger
+        .getMapElementsJsExpression();
 
     final keysAndValues = await inspector.jsCallFunctionOn(map, expression, []);
     final keys = await inspector.loadField(keysAndValues, 'keys');
@@ -674,8 +675,8 @@ class InstanceHelper extends Domain {
     final length = metaData.length;
     final objectId = remoteObject.objectId;
     if (objectId == null) return null;
-
-    final expression = _jsRuntimeFunctionCall('getSetElements(this)');
+    final expression = globalToolConfiguration.loadStrategy.dartRuntimeDebugger
+        .getSetElementsJsExpression();
 
     final result =
         await inspector.jsCallFunctionOn(remoteObject, expression, []);

dwds/lib/src/debugging/libraries.dart

@@ -82,13 +82,8 @@ class LibraryHelper extends Domain {
     final libraryUri = libraryRef.uri;
     if (libraryId == null || libraryUri == null) return null;
     // Fetch information about all the classes in this library.
-    final expression = '''
-      (function() {
-        const sdk = ${globalToolConfiguration.loadStrategy.loadModuleSnippet}('dart_sdk');
-        const dart = sdk.dart;
-        return dart.getLibraryMetadata('$libraryUri');
-      })()
-    ''';
+    final expression = globalToolConfiguration.loadStrategy.dartRuntimeDebugger
+        .getClassesInLibraryJsExpression(libraryUri);
 
     RemoteObject? result;
     try {

dwds/test/instances/common/instance_inspection_common.dart

@@ -62,6 +62,7 @@ void runTests({
           verboseCompiler: debug,
           canaryFeatures: canaryFeatures,
           experiments: ['records'],
+          moduleFormat: provider.ddcModuleFormat,
         ),
       );
       service = context.debugConnection.vmService;

dwds/test/instances/instance_inspection_canary_test.dart → dwds/test/instances/instance_inspection_amd_canary_test.dart

@@ -1,4 +1,4 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2024, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
@@ -7,6 +7,7 @@
 @Timeout(Duration(minutes: 2))
 library;
 
+import 'package:dwds/src/services/expression_compiler.dart';
 import 'package:test/test.dart';
 import 'package:test_common/test_sdk_configuration.dart';
 
@@ -22,6 +23,7 @@ void main() {
     final provider = TestSdkConfigurationProvider(
       verbose: debug,
       canaryFeatures: canaryFeatures,
+      ddcModuleFormat: ModuleFormat.amd,
     );
     tearDownAll(provider.dispose);
 

dwds/test/instances/instance_inspection_test.dart → dwds/test/instances/instance_inspection_amd_test.dart

@@ -1,4 +1,4 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2024, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
@@ -7,6 +7,7 @@
 @Timeout(Duration(minutes: 2))
 library;
 
+import 'package:dwds/src/services/expression_compiler.dart';
 import 'package:test/test.dart';
 import 'package:test_common/test_sdk_configuration.dart';
 
@@ -22,6 +23,7 @@ void main() {
     final provider = TestSdkConfigurationProvider(
       verbose: debug,
       canaryFeatures: canaryFeatures,
+      ddcModuleFormat: ModuleFormat.amd,
     );
     tearDownAll(provider.dispose);
 

dwds/test/instances/instance_inspection_ddc_library_bundle_test.dart

@@ -0,0 +1,37 @@
+// Copyright (c) 2024, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+@Tags(['daily'])
+@TestOn('vm')
+@Timeout(Duration(minutes: 2))
+library;
+
+import 'package:dwds/expression_compiler.dart';
+import 'package:test/test.dart';
+import 'package:test_common/test_sdk_configuration.dart';
+
+import '../fixtures/context.dart';
+import 'common/instance_inspection_common.dart';
+
+void main() {
+  // Enable verbose logging for debugging.
+  final debug = false;
+  final canaryFeatures = true;
+  final compilationMode = CompilationMode.frontendServer;
+
+  group('canary: $canaryFeatures |', () {
+    final provider = TestSdkConfigurationProvider(
+      verbose: debug,
+      canaryFeatures: canaryFeatures,
+      ddcModuleFormat: ModuleFormat.ddc,
+    );
+    tearDownAll(provider.dispose);
+    runTests(
+      provider: provider,
+      compilationMode: compilationMode,
+      canaryFeatures: canaryFeatures,
+      debug: debug,
+    );
+  });
+}