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// 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_
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