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- // Copyright 2021 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 INCLUDE_V8_TYPED_ARRAY_H_
- #define INCLUDE_V8_TYPED_ARRAY_H_
- #include "v8-array-buffer.h" // NOLINT(build/include_directory)
- #include "v8-local-handle.h" // NOLINT(build/include_directory)
- #include "v8config.h" // NOLINT(build/include_directory)
- namespace v8 {
- class SharedArrayBuffer;
- /**
- * A base class for an instance of TypedArray series of constructors
- * (ES6 draft 15.13.6).
- */
- class V8_EXPORT TypedArray : public ArrayBufferView {
- public:
- /*
- * The largest typed array size that can be constructed using New.
- */
- static constexpr size_t kMaxLength =
- internal::kApiSystemPointerSize == 4
- ? internal::kSmiMaxValue
- : static_cast<size_t>(uint64_t{1} << 32);
- /**
- * Number of elements in this typed array
- * (e.g. for Int16Array, |ByteLength|/2).
- */
- size_t Length();
- V8_INLINE static TypedArray* Cast(Value* value) {
- #ifdef V8_ENABLE_CHECKS
- CheckCast(value);
- #endif
- return static_cast<TypedArray*>(value);
- }
- private:
- TypedArray();
- static void CheckCast(Value* obj);
- };
- /**
- * An instance of Uint8Array constructor (ES6 draft 15.13.6).
- */
- class V8_EXPORT Uint8Array : public TypedArray {
- public:
- static Local<Uint8Array> New(Local<ArrayBuffer> array_buffer,
- size_t byte_offset, size_t length);
- static Local<Uint8Array> New(Local<SharedArrayBuffer> shared_array_buffer,
- size_t byte_offset, size_t length);
- V8_INLINE static Uint8Array* Cast(Value* value) {
- #ifdef V8_ENABLE_CHECKS
- CheckCast(value);
- #endif
- return static_cast<Uint8Array*>(value);
- }
- private:
- Uint8Array();
- static void CheckCast(Value* obj);
- };
- /**
- * An instance of Uint8ClampedArray constructor (ES6 draft 15.13.6).
- */
- class V8_EXPORT Uint8ClampedArray : public TypedArray {
- public:
- static Local<Uint8ClampedArray> New(Local<ArrayBuffer> array_buffer,
- size_t byte_offset, size_t length);
- static Local<Uint8ClampedArray> New(
- Local<SharedArrayBuffer> shared_array_buffer, size_t byte_offset,
- size_t length);
- V8_INLINE static Uint8ClampedArray* Cast(Value* value) {
- #ifdef V8_ENABLE_CHECKS
- CheckCast(value);
- #endif
- return static_cast<Uint8ClampedArray*>(value);
- }
- private:
- Uint8ClampedArray();
- static void CheckCast(Value* obj);
- };
- /**
- * An instance of Int8Array constructor (ES6 draft 15.13.6).
- */
- class V8_EXPORT Int8Array : public TypedArray {
- public:
- static Local<Int8Array> New(Local<ArrayBuffer> array_buffer,
- size_t byte_offset, size_t length);
- static Local<Int8Array> New(Local<SharedArrayBuffer> shared_array_buffer,
- size_t byte_offset, size_t length);
- V8_INLINE static Int8Array* Cast(Value* value) {
- #ifdef V8_ENABLE_CHECKS
- CheckCast(value);
- #endif
- return static_cast<Int8Array*>(value);
- }
- private:
- Int8Array();
- static void CheckCast(Value* obj);
- };
- /**
- * An instance of Uint16Array constructor (ES6 draft 15.13.6).
- */
- class V8_EXPORT Uint16Array : public TypedArray {
- public:
- static Local<Uint16Array> New(Local<ArrayBuffer> array_buffer,
- size_t byte_offset, size_t length);
- static Local<Uint16Array> New(Local<SharedArrayBuffer> shared_array_buffer,
- size_t byte_offset, size_t length);
- V8_INLINE static Uint16Array* Cast(Value* value) {
- #ifdef V8_ENABLE_CHECKS
- CheckCast(value);
- #endif
- return static_cast<Uint16Array*>(value);
- }
- private:
- Uint16Array();
- static void CheckCast(Value* obj);
- };
- /**
- * An instance of Int16Array constructor (ES6 draft 15.13.6).
- */
- class V8_EXPORT Int16Array : public TypedArray {
- public:
- static Local<Int16Array> New(Local<ArrayBuffer> array_buffer,
- size_t byte_offset, size_t length);
- static Local<Int16Array> New(Local<SharedArrayBuffer> shared_array_buffer,
- size_t byte_offset, size_t length);
- V8_INLINE static Int16Array* Cast(Value* value) {
- #ifdef V8_ENABLE_CHECKS
- CheckCast(value);
- #endif
- return static_cast<Int16Array*>(value);
- }
- private:
- Int16Array();
- static void CheckCast(Value* obj);
- };
- /**
- * An instance of Uint32Array constructor (ES6 draft 15.13.6).
- */
- class V8_EXPORT Uint32Array : public TypedArray {
- public:
- static Local<Uint32Array> New(Local<ArrayBuffer> array_buffer,
- size_t byte_offset, size_t length);
- static Local<Uint32Array> New(Local<SharedArrayBuffer> shared_array_buffer,
- size_t byte_offset, size_t length);
- V8_INLINE static Uint32Array* Cast(Value* value) {
- #ifdef V8_ENABLE_CHECKS
- CheckCast(value);
- #endif
- return static_cast<Uint32Array*>(value);
- }
- private:
- Uint32Array();
- static void CheckCast(Value* obj);
- };
- /**
- * An instance of Int32Array constructor (ES6 draft 15.13.6).
- */
- class V8_EXPORT Int32Array : public TypedArray {
- public:
- static Local<Int32Array> New(Local<ArrayBuffer> array_buffer,
- size_t byte_offset, size_t length);
- static Local<Int32Array> New(Local<SharedArrayBuffer> shared_array_buffer,
- size_t byte_offset, size_t length);
- V8_INLINE static Int32Array* Cast(Value* value) {
- #ifdef V8_ENABLE_CHECKS
- CheckCast(value);
- #endif
- return static_cast<Int32Array*>(value);
- }
- private:
- Int32Array();
- static void CheckCast(Value* obj);
- };
- /**
- * An instance of Float32Array constructor (ES6 draft 15.13.6).
- */
- class V8_EXPORT Float32Array : public TypedArray {
- public:
- static Local<Float32Array> New(Local<ArrayBuffer> array_buffer,
- size_t byte_offset, size_t length);
- static Local<Float32Array> New(Local<SharedArrayBuffer> shared_array_buffer,
- size_t byte_offset, size_t length);
- V8_INLINE static Float32Array* Cast(Value* value) {
- #ifdef V8_ENABLE_CHECKS
- CheckCast(value);
- #endif
- return static_cast<Float32Array*>(value);
- }
- private:
- Float32Array();
- static void CheckCast(Value* obj);
- };
- /**
- * An instance of Float64Array constructor (ES6 draft 15.13.6).
- */
- class V8_EXPORT Float64Array : public TypedArray {
- public:
- static Local<Float64Array> New(Local<ArrayBuffer> array_buffer,
- size_t byte_offset, size_t length);
- static Local<Float64Array> New(Local<SharedArrayBuffer> shared_array_buffer,
- size_t byte_offset, size_t length);
- V8_INLINE static Float64Array* Cast(Value* value) {
- #ifdef V8_ENABLE_CHECKS
- CheckCast(value);
- #endif
- return static_cast<Float64Array*>(value);
- }
- private:
- Float64Array();
- static void CheckCast(Value* obj);
- };
- /**
- * An instance of BigInt64Array constructor.
- */
- class V8_EXPORT BigInt64Array : public TypedArray {
- public:
- static Local<BigInt64Array> New(Local<ArrayBuffer> array_buffer,
- size_t byte_offset, size_t length);
- static Local<BigInt64Array> New(Local<SharedArrayBuffer> shared_array_buffer,
- size_t byte_offset, size_t length);
- V8_INLINE static BigInt64Array* Cast(Value* value) {
- #ifdef V8_ENABLE_CHECKS
- CheckCast(value);
- #endif
- return static_cast<BigInt64Array*>(value);
- }
- private:
- BigInt64Array();
- static void CheckCast(Value* obj);
- };
- /**
- * An instance of BigUint64Array constructor.
- */
- class V8_EXPORT BigUint64Array : public TypedArray {
- public:
- static Local<BigUint64Array> New(Local<ArrayBuffer> array_buffer,
- size_t byte_offset, size_t length);
- static Local<BigUint64Array> New(Local<SharedArrayBuffer> shared_array_buffer,
- size_t byte_offset, size_t length);
- V8_INLINE static BigUint64Array* Cast(Value* value) {
- #ifdef V8_ENABLE_CHECKS
- CheckCast(value);
- #endif
- return static_cast<BigUint64Array*>(value);
- }
- private:
- BigUint64Array();
- static void CheckCast(Value* obj);
- };
- } // namespace v8
- #endif // INCLUDE_V8_TYPED_ARRAY_H_
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