Index: src/x87/full-codegen-x87.cc |
diff --git a/src/x87/full-codegen-x87.cc b/src/x87/full-codegen-x87.cc |
index cc4644c04429dde0be588582d441eb59481b012f..01e42b0d28fabaeb77057d3eecec37e8451b9165 100644 |
--- a/src/x87/full-codegen-x87.cc |
+++ b/src/x87/full-codegen-x87.cc |
@@ -2554,6 +2554,19 @@ void FullCodeGenerator::EmitClassDefineProperties(ClassLiteral* lit, |
// constructor |
__ CallRuntime(Runtime::kToFastProperties, 1); |
+ |
+ if (is_strong(language_mode())) { |
+ __ mov(scratch, |
+ FieldOperand(eax, JSFunction::kPrototypeOrInitialMapOffset)); |
+ __ push(eax); |
+ __ push(scratch); |
+ // TODO(conradw): It would be more efficient to define the properties with |
+ // the right attributes the first time round. |
+ // Freeze the prototype. |
+ __ CallRuntime(Runtime::kObjectFreeze, 1); |
+ // Freeze the constructor. |
+ __ CallRuntime(Runtime::kObjectFreeze, 1); |
+ } |
} |