Option to output precompiled instructions as a blob for use with mmap instead of assembly for use i…

tools/testing/dart/runtime_configuration.dart

 // Copyright (c) 2014, 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 runtime_configuration;
 
 import 'compiler_configuration.dart' show CommandArtifact;
 
 // TODO(ahe): Remove this import, we can precompute all the values required
 // from TestSuite once the refactoring is complete.
 import 'test_suite.dart' show TestSuite;
 
 import 'test_runner.dart' show Command, CommandBuilder;
 
 // TODO(ahe): I expect this class will become abstract very soon.
 class RuntimeConfiguration {
   // TODO(ahe): Remove this constructor and move the switch to
   // test_options.dart.  We probably want to store an instance of
   // [RuntimeConfiguration] in [configuration] there.
   factory RuntimeConfiguration(Map configuration) {
     String runtime = configuration['runtime'];
+    bool useBlobs = configuration['use_blobs'];
+
     switch (runtime) {
       case 'ContentShellOnAndroid':
       case 'DartiumOnAndroid':
       case 'chrome':
       case 'chromeOnAndroid':
       case 'dartium':
       case 'ff':
       case 'firefox':
       case 'ie11':
       case 'ie10':
@@ skipping 13 matching lines @@
       case 'none':
         return new NoneRuntimeConfiguration();
 
       case 'vm':
         return new StandaloneDartRuntimeConfiguration();
 
       case 'dart_product':
         return new DartProductRuntimeConfiguration();
 
       case 'dart_precompiled':
-        return new DartPrecompiledRuntimeConfiguration();
+        return new DartPrecompiledRuntimeConfiguration(useBlobs: useBlobs);
 
       case 'drt':
         return new DrtRuntimeConfiguration();
 
       default:
         throw "Unknown runtime '$runtime'";
     }
   }
 
   RuntimeConfiguration._subclass();
@@ skipping 171 matching lines @@
     augmentedArgs.addAll(arguments);
 
     return <Command>[
       commandBuilder.getVmCommand(suite.dartVmBinaryFileName,
           augmentedArgs, environmentOverrides)
     ];
   }
 }
 
 class DartPrecompiledRuntimeConfiguration extends DartVmRuntimeConfiguration {
+  final bool useBlobs;
+  DartPrecompiledRuntimeConfiguration({bool useBlobs}) : useBlobs = useBlobs;
+
   List<Command> computeRuntimeCommands(
       TestSuite suite,
       CommandBuilder commandBuilder,
       CommandArtifact artifact,
       List<String> arguments,
       Map<String, String> environmentOverrides) {
     String script = artifact.filename;
     String type = artifact.mimeType;
     if (script != null && type != 'application/dart-precompiled') {
       throw "dart_precompiled cannot run files of type '$type'.";
     }
 
     var augmentedArgs = new List();
     augmentedArgs.add("--run-precompiled-snapshot=${artifact.filename}");
+    if (useBlobs) {
+      augmentedArgs.add("--use_blobs");
+    }
     augmentedArgs.addAll(arguments);
 
     return <Command>[
       commandBuilder.getVmCommand(suite.dartPrecompiledBinaryFileName,
           augmentedArgs, environmentOverrides)
     ];
   }
 }
 
 /// Temporary runtime configuration for browser runtimes that haven't been
 /// migrated yet.
 // TODO(ahe): Remove this class.
 class DummyRuntimeConfiguration extends DartVmRuntimeConfiguration {
   List<Command> computeRuntimeCommands(
       TestSuite suite,
       CommandBuilder commandBuilder,
       CommandArtifact artifact,
       List<String> arguments,
       Map<String, String> environmentOverrides) {
     throw "Unimplemented runtime '$runtimeType'";
   }
 }