// Copyright 2017 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. #ifndef V8_OBJECTS_JS_ARRAY_INL_H_ #define V8_OBJECTS_JS_ARRAY_INL_H_ #include "src/objects/js-array.h" #include "src/objects/objects-inl.h" // Needed for write barriers // Has to be the last include (doesn't have include guards): #include "src/objects/object-macros.h" namespace v8 { namespace internal { OBJECT_CONSTRUCTORS_IMPL(JSArray, JSObject) OBJECT_CONSTRUCTORS_IMPL(JSArrayIterator, JSObject) CAST_ACCESSOR(JSArray) CAST_ACCESSOR(JSArrayIterator) ACCESSORS(JSArray, length, Object, kLengthOffset) void JSArray::set_length(Smi length) { // Don't need a write barrier for a Smi. set_length(Object(length.ptr()), SKIP_WRITE_BARRIER); } bool JSArray::SetLengthWouldNormalize(Heap* heap, uint32_t new_length) { return new_length > kMaxFastArrayLength; } bool JSArray::AllowsSetLength() { bool result = elements().IsFixedArray() || elements().IsFixedDoubleArray(); DCHECK(result == !HasTypedArrayElements()); return result; } void JSArray::SetContent(Handle<JSArray> array, Handle<FixedArrayBase> storage) { EnsureCanContainElements(array, storage, storage->length(), ALLOW_COPIED_DOUBLE_ELEMENTS); DCHECK( (storage->map() == array->GetReadOnlyRoots().fixed_double_array_map() && IsDoubleElementsKind(array->GetElementsKind())) || ((storage->map() != array->GetReadOnlyRoots().fixed_double_array_map()) && (IsObjectElementsKind(array->GetElementsKind()) || (IsSmiElementsKind(array->GetElementsKind()) && Handle<FixedArray>::cast(storage)->ContainsOnlySmisOrHoles())))); array->set_elements(*storage); array->set_length(Smi::FromInt(storage->length())); } bool JSArray::HasArrayPrototype(Isolate* isolate) { return map().prototype() == *isolate->initial_array_prototype(); } ACCESSORS(JSArrayIterator, iterated_object, Object, kIteratedObjectOffset) ACCESSORS(JSArrayIterator, next_index, Object, kNextIndexOffset) SMI_ACCESSORS(JSArrayIterator, raw_kind, kKindOffset) IterationKind JSArrayIterator::kind() const { return static_cast<IterationKind>(raw_kind()); } void JSArrayIterator::set_kind(IterationKind kind) { set_raw_kind(static_cast<int>(kind)); } } // namespace internal } // namespace v8 #include "src/objects/object-macros-undef.h" #endif // V8_OBJECTS_JS_ARRAY_INL_H_