Incremental compilation of constants.

dart/pkg/compiler/lib/src/js_emitter/old_emitter/emitter.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.
 
 part of dart2js.js_emitter;
 
 
 class OldEmitter implements Emitter {
   final Compiler compiler;
   final CodeEmitterTask task;
@@ skipping 999 matching lines @@
     if (constants == null) return;
     bool isMainBuffer = buffer == mainBuffer;
     if (compiler.hasIncrementalSupport && isMainBuffer) {
       buffer = cachedEmittedConstantsBuffer;
     }
     for (ConstantValue constant in constants) {
       if (compiler.hasIncrementalSupport && isMainBuffer) {
         if (cachedEmittedConstants.contains(constant)) continue;
         cachedEmittedConstants.add(constant);
       }
-      String name = namer.constantName(constant);
-      jsAst.Expression init = js('#.# = #',
-          [namer.globalObjectForConstant(constant), name,
-           constantInitializerExpression(constant)]);
+      jsAst.Expression init = buildConstantInitializer(constant);
       buffer.write(jsAst.prettyPrint(init, compiler,
                                      monitor: compiler.dumpInfoTask));
       buffer.write('$N');
     }
     if (compiler.hasIncrementalSupport && isMainBuffer) {
       mainBuffer.add(cachedEmittedConstantsBuffer);
     }
   }
 
+  jsAst.Expression buildConstantInitializer(ConstantValue constant) {
+    String name = namer.constantName(constant);
+    return js('#.# = #',
+              [namer.globalObjectForConstant(constant), name,
+               constantInitializerExpression(constant)]);
+  }
+
   jsAst.Template get makeConstantListTemplate {
     // TODO(floitsch): there is no harm in caching the template.
     return jsAst.js.uncachedExpressionTemplate(
         '${namer.isolateName}.$makeConstListProperty(#)');
   }
 
   void emitMakeConstantList(CodeBuffer buffer) {
     buffer.write(
         jsAst.prettyPrint(
             // Functions are stored in the hidden class and not as properties in
@@ skipping 1067 matching lines @@
     for (Element element in compiler.enqueuer.codegen.newlyEnqueuedElements) {
       if (element.isInstanceMember) {
         cachedClassBuilders.remove(element.enclosingClass);
 
         nativeEmitter.cachedBuilders.remove(element.enclosingClass);
 
       }
     }
   }
 }