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Diffstat (limited to 'chromium/v8/src/runtime.cc')
| -rw-r--r-- | chromium/v8/src/runtime.cc | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/chromium/v8/src/runtime.cc b/chromium/v8/src/runtime.cc index c909f34db17..8333380e83b 100644 --- a/chromium/v8/src/runtime.cc +++ b/chromium/v8/src/runtime.cc @@ -980,6 +980,10 @@ RUNTIME_FUNCTION(MaybeObject*, Runtime_TypedArrayInitializeFromArrayLike) { Runtime::ArrayIdToTypeAndSize(arrayId, &array_type, &element_size); Handle<JSArrayBuffer> buffer = isolate->factory()->NewJSArrayBuffer(); + if (source->IsJSTypedArray() && + JSTypedArray::cast(*source)->type() == array_type) { + length_obj = Handle<Object>(JSTypedArray::cast(*source)->length(), isolate); + } size_t length = NumberToSize(isolate, *length_obj); if ((length > static_cast<unsigned>(Smi::kMaxValue)) || |