dart2js: In minified mode shorter getter and setter names.

sdk/lib/_internal/compiler/implementation/js_backend/namer.dart

 // Copyright (c) 2011, 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 js_backend;
 
 /**
  * Assigns JavaScript identifiers to Dart variables, class-names and members.
  */
 class Namer implements ClosureNamer {
@@ skipping 156 matching lines @@
       _jsVariableReserved = new Set<String>();
       _jsVariableReserved.addAll(javaScriptKeywords);
       _jsVariableReserved.addAll(reservedPropertySymbols);
       _jsVariableReserved.addAll(reservedGlobalSymbols);
     }
     return _jsVariableReserved;
   }
 
   final String CURRENT_ISOLATE = r'$';
 
+  final String getterPrefix = r'get$';
+  final String setterPrefix = r'set$';
+
   /**
    * Map from top-level or static elements to their unique identifiers provided
    * by [getName].
    *
    * Invariant: Keys must be declaration elements.
    */
   final Compiler compiler;
   final Map<Element, String> globals;
   final Map<Selector, String> oneShotInterceptorNames;
   final Map<String, LibraryElement> shortPrivateNameOwners;
@@ skipping 150 matching lines @@
     // is generated by string concatenation in applyFunction from
     // js_helper.dart.
     var proposedName = '$base\$$arity';
     if (name == closureInvocationSelectorName) return proposedName;
     return getMappedInstanceName(proposedName);
   }
 
   String invocationName(Selector selector) {
     if (selector.isGetter()) {
       String proposedName = privateName(selector.library, selector.name);
-      return 'get\$${getMappedInstanceName(proposedName)}';
+      return '$getterPrefix${getMappedInstanceName(proposedName)}';
     } else if (selector.isSetter()) {
       String proposedName = privateName(selector.library, selector.name);
-      return 'set\$${getMappedInstanceName(proposedName)}';
+      return '$setterPrefix${getMappedInstanceName(proposedName)}';
     } else {
       SourceString name = selector.name;
       if (selector.kind == SelectorKind.OPERATOR
           || selector.kind == SelectorKind.INDEX) {
         name = operatorNameToIdentifier(name);
         assert(name != selector.name);
         return getMappedOperatorName(name.slowToString());
       }
       assert(name == operatorNameToIdentifier(name));
       StringBuffer buffer = new StringBuffer();
@@ skipping 43 matching lines @@
     String className = getName(fieldElement.getEnclosingClass());
     String instanceName = instanceFieldName(fieldElement);
     return getMappedInstanceName('$libraryName\$$className\$$instanceName');
   }
 
   String setterName(Element element) {
     // We dynamically create setters from the field-name. The setter name must
     // therefore be derived from the instance field-name.
     LibraryElement library = element.getLibrary();
     String name = getMappedInstanceName(privateName(library, element.name));
-    return 'set\$$name';
+    return '$setterPrefix$name';
   }
 
   String setterNameFromAccessorName(String name) {
     // We dynamically create setters from the field-name. The setter name must
     // therefore be derived from the instance field-name.
-    return 'set\$$name';
+    return '$setterPrefix$name';
   }
 
   String publicGetterName(SourceString name) {
     // We dynamically create getters from the field-name. The getter name must
     // therefore be derived from the instance field-name.
     String fieldName = getMappedInstanceName(name.slowToString());
-    return 'get\$$fieldName';
+    return '$getterPrefix$fieldName';
   }
 
   String getterNameFromAccessorName(String name) {
     // We dynamically create getters from the field-name. The getter name must
     // therefore be derived from the instance field-name.
-    return 'get\$$name';
+    return '$getterPrefix$name';
   }
 
   String getterName(Element element) {
     // We dynamically create getters from the field-name. The getter name must
     // therefore be derived from the instance field-name.
     LibraryElement library = element.getLibrary();
     String name = getMappedInstanceName(privateName(library, element.name));
-    return 'get\$$name';
+    return '$getterPrefix$name';
   }
 
   String getMappedGlobalName(String proposedName) {
     var newName = globalNameMap[proposedName];
     if (newName == null) {
       newName = getFreshName(proposedName, usedGlobalNames,
                              suggestedGlobalNames, ensureSafe: true);
       globalNameMap[proposedName] = newName;
     }
     return newName;
@@ skipping 188 matching lines @@
         globals[element] = result;
         return result;
       }
       compiler.internalError('getName for unknown kind: ${element.kind}',
                               node: element.parseNode(compiler));
     }
   }
 
   String getLazyInitializerName(Element element) {
     assert(Elements.isStaticOrTopLevelField(element));
-    return getMappedGlobalName("get\$${getName(element)}");
+    return getMappedGlobalName("$getterPrefix${getName(element)}");
   }
 
   String isolatePropertiesAccess(Element element) {
     return "$isolateName.$isolatePropertiesName.${getName(element)}";
   }
 
   String isolateAccess(Element element) {
     return "$CURRENT_ISOLATE.${getName(element)}";
   }
 
@@ skipping 90 matching lines @@
       return const SourceString(r'$or');
     } else if (value == '-') {
       return const SourceString(r'$sub');
     } else if (value == 'unary-') {
       return const SourceString(r'$negate');
     } else {
       return name;
     }
   }
 }