Reapply "Tweak public APIs and use them in patch_sdk, dart2js, and kernel-service.""

pkg/compiler/lib/src/kernel/dart2js_target.dart

Index: pkg/compiler/lib/src/kernel/dart2js_target.dart
diff --git a/pkg/compiler/lib/src/kernel/dart2js_target.dart b/pkg/compiler/lib/src/kernel/dart2js_target.dart
new file mode 100644
index 0000000000000000000000000000000000000000..4b7d2e7a718c4aeb1155752f0391e2cb8c29b039
--- /dev/null
+++ b/pkg/compiler/lib/src/kernel/dart2js_target.dart
@@ -0,0 +1,92 @@
+// Copyright (c) 2017, 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.
+
+library compiler.src.kernel.dart2js_target;
+
+import 'package:kernel/kernel.dart';
+import 'package:kernel/core_types.dart';
+import 'package:kernel/class_hierarchy.dart';
+import 'package:kernel/target/targets.dart';
+
+import 'package:compiler/src/native/native.dart' show maybeEnableNative;
+
+/// A kernel [Target] to configure the Dart Front End for dart2js.
+class Dart2jsTarget extends Target {
+  final TargetFlags flags;
+
+  Dart2jsTarget(this.flags);
+
+  bool get strongMode => flags.strongMode;
+
+  String get name => 'dart2js';
+
+  List<String> get extraRequiredLibraries => const <String>[
+        'dart:_chrome',
+        'dart:_foreign_helper',
+        'dart:_interceptors',
+        'dart:_internal',
+        'dart:_isolate_helper',
+        'dart:_js_embedded_names',
+        'dart:_js_helper',
+        'dart:_js_mirrors',
+        'dart:_js_names',
+        'dart:_native_typed_data',
+        'dart:async',
+        'dart:collection',
+        'dart:html',
+        'dart:html_common',
+        'dart:indexed_db',
+        'dart:js',
+        'dart:js_util',
+        'dart:mirrors',
+        'dart:svg',
+        'dart:web_audio',
+        'dart:web_gl',
+        'dart:web_sql',
+      ];
+
+  @override
+  bool mayDefineRestrictedType(Uri uri) =>
+      uri.scheme == 'dart' &&
+      (uri.path == 'core' || uri.path == '_interceptors');
+
+  @override
+  bool enableNative(Uri uri) => maybeEnableNative(uri);
+
+  @override
+  bool get nativeExtensionExpectsString => false;
+
+  @override
+  void performModularTransformationsOnLibraries(
+      CoreTypes coreTypes, ClassHierarchy hierarchy, List<Library> libraries,
+      {void logger(String msg)}) {}
+
+  @override
+  void performGlobalTransformations(CoreTypes coreTypes, Program program,
+      {void logger(String msg)}) {}
+
+  @override
+  Expression instantiateInvocation(CoreTypes coreTypes, Expression receiver,
+      String name, Arguments arguments, int offset, bool isSuper) {
+    // TODO(sigmund): implement;
+    return new InvalidExpression();
+  }
+
+  @override
+  Expression instantiateNoSuchMethodError(CoreTypes coreTypes,
+      Expression receiver, String name, Arguments arguments, int offset,
+      {bool isMethod: false,
+      bool isGetter: false,
+      bool isSetter: false,
+      bool isField: false,
+      bool isLocalVariable: false,
+      bool isDynamic: false,
+      bool isSuper: false,
+      bool isStatic: false,
+      bool isConstructor: false,
+      bool isTopLevel: false}) {
+    // TODO(sigmund): implement;
+    return new InvalidExpression();
+  }
+}