Lazy implementation of final variables.

lib/compiler/implementation/namer.dart

Index: lib/compiler/implementation/namer.dart
diff --git a/lib/compiler/implementation/namer.dart b/lib/compiler/implementation/namer.dart
index e76ecbad75e1d18a8ab8a4e9da04e610d34d4c2c..93fe6d148481d121a9c9fff9699e29f11219c970 100644
--- a/lib/compiler/implementation/namer.dart
+++ b/lib/compiler/implementation/namer.dart
@@ -33,6 +33,8 @@ class Namer {
   /** Some closures must contain their name. The name is stored in
     * [STATIC_CLOSURE_NAME_NAME]. */
   final String STATIC_CLOSURE_NAME_NAME = @'$name';
+  // TODO(floitsch): make sure the sentinel can't clash with other fields.

[kasperl, 2012/09/05 08:25:24]

Where is this used?

[floitsch, 2012/09/05 09:31:07]

Removed.
done.

+  final String LAZY_INITIALIZATION_SENTINEL = @"$lazySentinel";
   static const SourceString CLOSURE_INVOCATION_NAME =
       Compiler.CALL_OPERATOR_NAME;
 
@@ -273,6 +275,12 @@ class Namer {
     }
   }
 
+  String getLazyInitializerName(Element element) {
+    // TODO(floitsch): mangle while not conflicting with other statics.
+    assert(Elements.isStaticOrTopLevelField(element));
+    return "get\$${getName(element)}";
+  }
+
   String isolatePropertiesAccess(Element element) {
     return "$ISOLATE.$ISOLATE_PROPERTIES.${getName(element)}";
   }
@@ -289,6 +297,10 @@ class Namer {
     return '${isolateAccess(element)}\$bailout';
   }
 
+  String isolateLazyInitializerAccess(Element element) {
+    return "$CURRENT_ISOLATE.${getLazyInitializerName(element)}";
+  }
+
   String operatorIs(Element element) {
     return 'is\$${getName(element)}';
   }