Support loading binary data in dart2js

pkg/compiler/lib/src/compiler.dart

 // Copyright (c) 2012, 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 dart2js.compiler_base;
 
 import 'dart:async' show Future;
 
 import '../compiler_new.dart' as api;
 import 'backend_strategy.dart';
@@ skipping 21 matching lines @@
 import 'dump_info.dart' show DumpInfoTask;
 import 'elements/elements.dart';
 import 'elements/entities.dart';
 import 'elements/resolution_types.dart' show ResolutionDartType, Types;
 import 'elements/types.dart' show DartTypes;
 import 'enqueue.dart' show Enqueuer, EnqueueTask, ResolutionEnqueuer;
 import 'environment.dart';
 import 'frontend_strategy.dart';
 import 'id_generator.dart';
 import 'io/source_information.dart' show SourceInformation;
+import 'io/source_file.dart' show Binary;
 import 'js_backend/backend.dart' show JavaScriptBackend;
 import 'js_backend/element_strategy.dart' show ElementBackendStrategy;
 import 'kernel/kernel_strategy.dart';
 import 'library_loader.dart'
     show
         ElementScanner,
         LibraryLoader,
         LibraryLoaderTask,
         LoadedLibraries,
         ScriptLoader;
@@ skipping 797 matching lines @@
   /**
    * Reads the script specified by the [readableUri].
    *
    * See [LibraryLoader] for terminology on URIs.
    */
   Future<Script> readScript(Uri readableUri, [Spannable node]) {
     throw new SpannableAssertionFailure(
         node, 'Compiler.readScript not implemented.');
   }
 
+  Future<Binary> readBinary(Uri readableUri, [Spannable node]) {
+    throw new SpannableAssertionFailure(
+        node, 'Compiler.readBinary not implemented.');
+  }
+
   Element lookupElementIn(ScopeContainerElement container, String name) {
     Element element = container.localLookup(name);
     if (element == null) {
       throw 'Could not find $name in $container';
     }
     return element;
   }
 
   bool get isMockCompilation => false;
 
@@ skipping 666 matching lines @@
     return _proxyConstant == value;
   }
 }
 
 class _ScriptLoader implements ScriptLoader {
   Compiler compiler;
   _ScriptLoader(this.compiler);
 
   Future<Script> readScript(Uri uri, [Spannable spannable]) =>
       compiler.readScript(uri, spannable);
+
+  Future<Binary> readBinary(Uri uri, [Spannable spannable]) =>
+      compiler.readBinary(uri, spannable);
 }
 
 /// [ScriptLoader] used to ensure that scripts are not loaded accidentally
 /// through the [LibraryLoader] when `CompilerOptions.compileOnly` is `true`.
 class _NoScriptLoader implements ScriptLoader {
   Compiler compiler;
   _NoScriptLoader(this.compiler);
 
   Future<Script> readScript(Uri uri, [Spannable spannable]) {
     throw compiler.reporter
         .internalError(spannable, "Script loading of '$uri' is not enabled.");
   }
+
+  Future<Binary> readBinary(Uri uri, [Spannable spannable]) {
+    throw compiler.reporter
+        .internalError(spannable, "Script loading of '$uri' is not enabled.");
+  }
 }
 
 class _ElementScanner implements ElementScanner {
   ScannerTask scanner;
   _ElementScanner(this.scanner);
   void scanLibrary(LibraryElement library) => scanner.scanLibrary(library);
   void scanUnit(CompilationUnitElement unit) => scanner.scan(unit);
 }
 
 class _EmptyEnvironment implements Environment {
   const _EmptyEnvironment();
 
   String valueOf(String key) => null;
 }