dart2js: Move metadata from old_emitter to shared directory.

pkg/compiler/lib/src/js_emitter/old_emitter/class_emitter.dart

 // Copyright (c) 2013, 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 ClassEmitter extends CodeEmitterHelper {
 
   ClassStubGenerator get _stubGenerator =>
       new ClassStubGenerator(compiler, namer, backend);
@@ skipping 100 matching lines @@
       bool needsSetter = field.needsUncheckedSetter;
 
         // Ignore needsCheckedSetter - that is handled below.
       bool needsAccessor = (needsGetter || needsSetter);
       // We need to output the fields for non-native classes so we can auto-
       // generate the constructor.  For native classes there are no
       // constructors, so we don't need the fields unless we are generating
       // accessors at runtime.
       bool needsFieldsForConstructor = !emitStatics && !classIsNative;
       if (needsFieldsForConstructor || needsAccessor) {
-        var metadata =
-            emitter.metadataEmitter.buildMetadataFunction(fieldElement);
+        var metadata = task.metadataEmitter.buildMetadataFunction(fieldElement);
         if (metadata != null) {
           hasMetadata = true;
         } else {
           metadata = new jsAst.LiteralNull();
         }
         fieldMetadata.add(metadata);
         recordMangledField(fieldElement, accessorName,
             namer.privateName(fieldElement.library, fieldElement.name));
         String fieldName = name;
         String fieldCode = '';
@@ skipping 23 matching lines @@
           int code = field.getterFlags + (field.setterFlags << 2);
           if (code == 0) {
             compiler.internalError(fieldElement,
                 'Field code is 0 ($fieldElement).');
           } else {
             fieldCode = FIELD_CODE_CHARACTERS[code - FIRST_FIELD_CODE];
           }
         }
         if (backend.isAccessibleByReflection(fieldElement)) {
           DartType type = fieldElement.type;
-          reflectionMarker = '-${emitter.metadataEmitter.reifyType(type)}';
+          reflectionMarker = '-${task.metadataEmitter.reifyType(type)}';
         }
         String builtFieldname = '$fieldName$fieldCode$reflectionMarker';
         builder.addField(builtFieldname);
         // Add 1 because adding a field to the class also requires a comma
         compiler.dumpInfoTask.recordFieldNameSize(fieldElement,
             builtFieldname.length + 1);
         fieldsAdded = true;
       }
     }
 
@@ skipping 95 matching lines @@
       builder.addProperty(namer.nativeSpecProperty, js.string(cls.nativeInfo));
     }
   }
 
   void emitClassBuilderWithReflectionData(Class cls,
                                           ClassBuilder classBuilder,
                                           ClassBuilder enclosingBuilder) {
     ClassElement classElement = cls.element;
     String className = cls.name;
 
-    var metadata = emitter.metadataEmitter.buildMetadataFunction(classElement);
+    var metadata = task.metadataEmitter.buildMetadataFunction(classElement);
     if (metadata != null) {
       classBuilder.addProperty("@", metadata);
     }
 
     if (backend.isAccessibleByReflection(classElement)) {
       List<DartType> typeVars = classElement.typeVariables;
       Iterable typeVariableProperties = emitter.typeVariableHandler
           .typeVariablesOf(classElement).map(js.number);
 
       ClassElement superclass = classElement.superclass;
@@ skipping 32 matching lines @@
     compiler.dumpInfoTask.registerElementAst(classBuilder.element, propertyValue);
     enclosingBuilder.addProperty(className, propertyValue);
 
     String reflectionName = emitter.getReflectionName(classElement, className);
     if (reflectionName != null) {
       if (!backend.isAccessibleByReflection(classElement)) {
         enclosingBuilder.addProperty("+$reflectionName", js.number(0));
       } else {
         List<int> types = <int>[];
         if (classElement.supertype != null) {
-          types.add(emitter.metadataEmitter.reifyType(classElement.supertype));
+          types.add(task.metadataEmitter.reifyType(classElement.supertype));
         }
         for (DartType interface in classElement.interfaces) {
-          types.add(emitter.metadataEmitter.reifyType(interface));
+          types.add(task.metadataEmitter.reifyType(interface));
         }
         enclosingBuilder.addProperty("+$reflectionName",
             new jsAst.ArrayInitializer(types.map(js.number).toList()));
       }
     }
   }
 
   /**
    * Invokes [f] for each of the fields of [element].
    *
@@ skipping 239 matching lines @@
               js.number(index));
     }
     jsAst.Expression convertRtiToRuntimeType = emitter
         .staticFunctionAccess(backend.findHelper('convertRtiToRuntimeType'));
     compiler.dumpInfoTask.registerElementAst(element,
         builder.addProperty(name,
             js('function () { return #(#) }',
                 [convertRtiToRuntimeType, computeTypeVariable])));
   }
 }