Implement strict mode arguments caller/callee.

src/runtime.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 4352 matching lines @@
 
   // Try to convert the string key into an array index.
   if (key->AsArrayIndex(&index)) {
     if (index < n) {
       return frame->GetParameter(index);
     } else {
       return Top::initial_object_prototype()->GetElement(index);
     }
   }
 
   // Handle special arguments properties.

[Martin Maly, 2011/03/15 02:50:36]

Runtime_GetArgumentsProperty ... it only appears to be called as a slow path for
_Arguments[?] inline call from JS runtime code. This code may not be hit since I
couldn't find _Arguments[x] with "callee" as property name.
Not sure if caller should be handled here as well since I suspect this code is
not used...

   if (key->Equals(Heap::length_symbol())) return Smi::FromInt(n);
-  if (key->Equals(Heap::callee_symbol())) return frame->function();
+  if (key->Equals(Heap::callee_symbol())) {
+    Object* function = frame->function();
+    if (function->IsJSFunction() &&
+        JSFunction::cast(function)->shared()->strict_mode()) {
+      return Top::Throw(*Factory::NewTypeError("strict_arguments_callee",
+                                               HandleVector<Object>(NULL, 0)));
+    }
+    return function;
+  }
 
   // Lookup in the initial Object.prototype object.
   return Top::initial_object_prototype()->GetProperty(*key);
 }
 
 
 static MaybeObject* Runtime_ToFastProperties(Arguments args) {
   HandleScope scope;
 
   ASSERT(args.length() == 1);
@@ skipping 7242 matching lines @@
   } else {
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     Counters::gc_last_resort_from_js.Increment();
     Heap::CollectAllGarbage(false);
   }
 }
 
 
 } }  // namespace v8::internal