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// Copyright 2019 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.
bitfield struct JSArrayBufferFlags extends uint32 {
is_external: bool: 1 bit;
is_detachable: bool: 1 bit;
was_detached: bool: 1 bit;
is_asm_js_memory: bool: 1 bit;
is_shared: bool: 1 bit;
}
@generateCppClass
extern class JSArrayBuffer extends JSObject {
byte_length: uintptr;
backing_store: ExternalPointer;
extension: RawPtr;
bit_field: JSArrayBufferFlags;
// Pads header size to be a multiple of kTaggedSize.
@if(TAGGED_SIZE_8_BYTES) optional_padding: uint32;
@ifnot(TAGGED_SIZE_8_BYTES) optional_padding: void;
}
extern operator '.backing_store_ptr' macro LoadJSArrayBufferBackingStorePtr(
JSArrayBuffer): RawPtr;
@export
macro IsDetachedBuffer(buffer: JSArrayBuffer): bool {
return buffer.bit_field.was_detached;
}
macro IsSharedArrayBuffer(buffer: JSArrayBuffer): bool {
return buffer.bit_field.is_shared;
}
@abstract
@generateCppClass
extern class JSArrayBufferView extends JSObject {
buffer: JSArrayBuffer;
byte_offset: uintptr;
byte_length: uintptr;
}
@generateCppClass
extern class JSTypedArray extends JSArrayBufferView {
length: uintptr;
external_pointer: ExternalPointer;
base_pointer: ByteArray|Smi;
}
@generateCppClass
extern class JSDataView extends JSArrayBufferView {
data_pointer: ExternalPointer;
}
@abstract
@doNotGenerateCast extern class TypedArrayConstructor extends JSFunction
generates 'TNode<JSFunction>';
@doNotGenerateCast
extern class Uint8TypedArrayConstructor extends TypedArrayConstructor
generates 'TNode<JSFunction>';
@doNotGenerateCast
extern class Int8TypedArrayConstructor extends TypedArrayConstructor
generates 'TNode<JSFunction>';
@doNotGenerateCast
extern class Uint16TypedArrayConstructor extends TypedArrayConstructor
generates 'TNode<JSFunction>';
@doNotGenerateCast
extern class Int16TypedArrayConstructor extends TypedArrayConstructor
generates 'TNode<JSFunction>';
@doNotGenerateCast
extern class Uint32TypedArrayConstructor extends TypedArrayConstructor
generates 'TNode<JSFunction>';
@doNotGenerateCast
extern class Int32TypedArrayConstructor extends TypedArrayConstructor
generates 'TNode<JSFunction>';
@doNotGenerateCast
extern class Float32TypedArrayConstructor extends TypedArrayConstructor
generates 'TNode<JSFunction>';
@doNotGenerateCast
extern class Float64TypedArrayConstructor extends TypedArrayConstructor
generates 'TNode<JSFunction>';
@doNotGenerateCast
extern class Uint8ClampedTypedArrayConstructor extends TypedArrayConstructor
generates 'TNode<JSFunction>';
@doNotGenerateCast
extern class Biguint64TypedArrayConstructor extends TypedArrayConstructor
generates 'TNode<JSFunction>';
@doNotGenerateCast
extern class Bigint64TypedArrayConstructor extends TypedArrayConstructor
generates 'TNode<JSFunction>';
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