[modules] Implement @@iterator on namespace objects.

src/objects-debug.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/objects.h"
 
 #include "src/bootstrapper.h"
 #include "src/disasm.h"
 #include "src/disassembler.h"
 #include "src/field-type.h"
@@ skipping 125 matching lines @@
       break;
     case WEAK_CELL_TYPE:
       WeakCell::cast(this)->WeakCellVerify();
       break;
     case JS_ARRAY_TYPE:
       JSArray::cast(this)->JSArrayVerify();
       break;
     case JS_MODULE_NAMESPACE_TYPE:
       JSModuleNamespace::cast(this)->JSModuleNamespaceVerify();
       break;
+    case JS_FIXED_ARRAY_ITERATOR_TYPE:
+      JSFixedArrayIterator::cast(this)->JSFixedArrayIteratorVerify();
+      break;
     case JS_SET_TYPE:
       JSSet::cast(this)->JSSetVerify();
       break;
     case JS_MAP_TYPE:
       JSMap::cast(this)->JSMapVerify();
       break;
     case JS_SET_ITERATOR_TYPE:
       JSSetIterator::cast(this)->JSSetIteratorVerify();
       break;
     case JS_MAP_ITERATOR_TYPE:
@@ skipping 764 matching lines @@
   reject()->ObjectVerify();
   before_debug_event()->ObjectVerify();
   after_debug_event()->ObjectVerify();
 }
 
 void JSModuleNamespace::JSModuleNamespaceVerify() {
   CHECK(IsJSModuleNamespace());
   module()->ObjectVerify();
 }
 
+void JSFixedArrayIterator::JSFixedArrayIteratorVerify() {
+  CHECK(IsJSFixedArrayIterator());
+  CHECK(next()->IsJSFunction());
+  CHECK(array()->IsFixedArray());
+  VerifySmiField(kIndexOffset);
+
+  CHECK_LE(index(), array()->length());
+}
+
 void Module::ModuleVerify() {
   Isolate* isolate = GetIsolate();
   CHECK(IsModule());
   CHECK(code()->IsSharedFunctionInfo() || code()->IsJSFunction());
   code()->ObjectVerify();
   exports()->ObjectVerify();
   requested_modules()->ObjectVerify();
   VerifySmiField(kFlagsOffset);
   embedder_data()->ObjectVerify();
   VerifySmiField(kHashOffset);
@@ skipping 433 matching lines @@
 
   // Both are done at the same time.
   CHECK_EQ(new_it.done(), old_it.done());
 }
 
 
 #endif  // DEBUG
 
 }  // namespace internal
 }  // namespace v8