dart2js cps: Access to lazily initialized fields.

pkg/compiler/lib/src/js_backend/codegen/codegen.dart

Index: pkg/compiler/lib/src/js_backend/codegen/codegen.dart
diff --git a/pkg/compiler/lib/src/js_backend/codegen/codegen.dart b/pkg/compiler/lib/src/js_backend/codegen/codegen.dart
index a1b623fc25ece50a7c8c89729d428ab957b9f194..48ffcc9be66a9e9953dce629365364b4fb54dc0b 100644
--- a/pkg/compiler/lib/src/js_backend/codegen/codegen.dart
+++ b/pkg/compiler/lib/src/js_backend/codegen/codegen.dart
@@ -590,13 +590,20 @@ class CodeGenerator extends tree_ir.StatementVisitor
   @override
   js.Expression visitGetStatic(tree_ir.GetStatic node) {
     assert(node.element is FieldElement || node.element is FunctionElement);
-    if (node.element is FieldElement) {
-      registry.registerStaticUse(node.element.declaration);
-      return glue.staticFieldAccess(node.element);
-    } else {
+    // Tear-off method

[Kevin Millikin (Google), 2015/05/18 12:28:24]

I like this comment inside the if, but maybe you disagree.  In any case I think
it's supposed to look like a sentence (with a period), even though it isn't one,
and so do the next two comments below.

[asgerf, 2015/05/18 12:38:19]

Done.

+    if (node.element is FunctionElement) {
       registry.registerGetOfStaticFunction(node.element.declaration);
       return glue.isolateStaticClosureAccess(node.element);
     }
+    // Read lazily initialized field
+    if (glue.isLazilyInitialized(node.element)) {
+      registry.registerStaticUse(node.element.declaration);
+      js.Expression getter = glue.isolateLazyInitializerAccess(node.element);
+      return new js.Call(getter, [], sourceInformation: node.sourceInformation);
+    }
+    // Ordinary field access
+    registry.registerStaticUse(node.element.declaration);
+    return glue.staticFieldAccess(node.element);
   }
 
   @override