Support class and typedef literals as expressions.

lib/compiler/implementation/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.
 
 part of dart2js;
 
 /**
  * If true, print a warning for each method that was resolved, but not
  * compiled.
  */
@@ skipping 109 matching lines @@
   ClassElement closureClass;
   ClassElement dynamicClass;
   ClassElement boolClass;
   ClassElement numClass;
   ClassElement intClass;
   ClassElement doubleClass;
   ClassElement stringClass;
   ClassElement functionClass;
   ClassElement nullClass;
   ClassElement listClass;
+  ClassElement typeClass;
   ClassElement mapClass;
   Element assertMethod;
   Element identicalFunction;
   Element functionApplyMethod;
 
   Element get currentElement => _currentElement;
   withCurrentElement(Element element, f()) {
     Element old = currentElement;
     _currentElement = element;
     try {
@@ skipping 38 matching lines @@
   ConstantHandler constantHandler;
   EnqueueTask enqueuer;
 
   static const SourceString MAIN = const SourceString('main');
   static const SourceString CALL_OPERATOR_NAME = const SourceString('call');
   static const SourceString NO_SUCH_METHOD = const SourceString('noSuchMethod');
   static const SourceString RUNTIME_TYPE = const SourceString('runtimeType');
   static const SourceString START_ROOT_ISOLATE =
       const SourceString('startRootIsolate');
   bool enabledNoSuchMethod = false;
-  bool enabledRuntimeType = false;
   bool enabledFunctionApply = false;
 
+  bool _enabledRuntimeType = false;

[ngeoffray, 2012/10/31 10:33:03]

Why private? I'd prefer to have it consistent with the other flags.

[karlklose, 2012/10/31 13:01:18]

I have a change to implement the runtime cache to dart code so we do not need to
record if we have to emit it.

+  bool _needsRuntimeTypeCache = false;
+
+  void enableRuntimeTypeFunction() {
+    _enabledRuntimeType = true;
+    enableRuntimeTypeCache();
+  }
+
+  void enableRuntimeTypeCache() {
+    _needsRuntimeTypeCache = true;
+  }
+
+  bool get enabledRuntimeType => _enabledRuntimeType;
+  bool needsRuntimeTypeCache() => _needsRuntimeTypeCache;
+
   Stopwatch progress;
 
   static const int PHASE_SCANNING = 0;
   static const int PHASE_RESOLVING = 1;
   static const int PHASE_COMPILING = 2;
   int phase;
 
   bool compilationFailed = false;
 
   bool hasCrashed = false;
@@ skipping 185 matching lines @@
       return result;
     }
     objectClass = lookupSpecialClass(const SourceString('Object'));
     boolClass = lookupSpecialClass(const SourceString('bool'));
     numClass = lookupSpecialClass(const SourceString('num'));
     intClass = lookupSpecialClass(const SourceString('int'));
     doubleClass = lookupSpecialClass(const SourceString('double'));
     stringClass = lookupSpecialClass(const SourceString('String'));
     functionClass = lookupSpecialClass(const SourceString('Function'));
     listClass = lookupSpecialClass(const SourceString('List'));
+    typeClass = lookupSpecialClass(const SourceString('Type'));
     mapClass = lookupSpecialClass(const SourceString('Map'));
     closureClass = lookupSpecialClass(const SourceString('Closure'));
     dynamicClass = lookupSpecialClass(const SourceString('Dynamic_'));
     nullClass = lookupSpecialClass(const SourceString('Null'));
     types = new Types(this, dynamicClass);
     if (!coreLibValid) {
       cancel('core library does not contain required classes');
     }
   }
 
@@ skipping 485 matching lines @@
   // TODO(johnniwinther): Use [spannable] and [message] to provide better
   // information on assertion errors.
   if (condition is Function){
     condition = condition();
   }
   if (spannable == null || !condition) {
     throw new SpannableAssertionFailure(spannable, message);
   }
   return true;
 }