AuroraMiddleware/v8
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Add undefined check for default Array map in ArrayCodeGenericCommon

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TBR=jkummerow@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9290064

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10524 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
danno@chromium.org 2012-01-26 22:33:54 +00:00
parent 57525ef893
commit 39cab48faf
1 changed files with 3 additions and 2 deletions
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5
src/builtins.cc
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@ -198,8 +198,9 @@ static MaybeObject* ArrayCodeGenericCommon(Arguments* args,
array->set_length(Smi::FromInt(0));
array->set_elements(heap->empty_fixed_array());
if (!FLAG_smi_only_arrays) {
if (array->GetElementsKind() == FAST_SMI_ONLY_ELEMENTS) {
Context* global_context = isolate->context()->global_context();
Context* global_context = isolate->context()->global_context();
if (array->GetElementsKind() == FAST_SMI_ONLY_ELEMENTS &&
!global_context->object_js_array_map()->IsUndefined()) {
array->set_map(Map::cast(global_context->object_js_array_map()));
}
}