diff options
Diffstat (limited to 'deps/v8/src/objects/js-array-inl.h')
| -rw-r--r-- | deps/v8/src/objects/js-array-inl.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/deps/v8/src/objects/js-array-inl.h b/deps/v8/src/objects/js-array-inl.h index 6bba2f0054..1128e190b2 100644 --- a/deps/v8/src/objects/js-array-inl.h +++ b/deps/v8/src/objects/js-array-inl.h @@ -204,6 +204,15 @@ void JSTypedArray::set_length(Object* value, WriteBarrierMode mode) { CONDITIONAL_WRITE_BARRIER(GetHeap(), this, kLengthOffset, value, mode); } +bool JSTypedArray::HasJSTypedArrayPrototype(Isolate* isolate) { + DisallowHeapAllocation no_gc; + Object* proto = map()->prototype(); + if (!proto->IsJSObject()) return false; + + JSObject* proto_obj = JSObject::cast(proto); + return proto_obj->map()->prototype() == *isolate->typed_array_prototype(); +} + // static MaybeHandle<JSTypedArray> JSTypedArray::Validate(Isolate* isolate, Handle<Object> receiver, @@ -227,6 +236,26 @@ MaybeHandle<JSTypedArray> JSTypedArray::Validate(Isolate* isolate, return array; } +// static +Handle<JSFunction> JSTypedArray::DefaultConstructor( + Isolate* isolate, Handle<JSTypedArray> exemplar) { + Handle<JSFunction> default_ctor = isolate->uint8_array_fun(); + switch (exemplar->type()) { +#define TYPED_ARRAY_CTOR(Type, type, TYPE, ctype, size) \ + case kExternal##Type##Array: { \ + default_ctor = isolate->type##_array_fun(); \ + break; \ + } + + TYPED_ARRAYS(TYPED_ARRAY_CTOR) +#undef TYPED_ARRAY_CTOR + default: + UNREACHABLE(); + } + + return default_ctor; +} + #ifdef VERIFY_HEAP ACCESSORS(JSTypedArray, raw_length, Object, kLengthOffset) #endif |