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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_CONTAINER_H_ #define INCLUDE_V8_CONTAINER_H_ #include <stddef.h> #include <stdint.h> #include "v8-local-handle.h" // NOLINT(build/include_directory) #include "v8-object.h" // NOLINT(build/include_directory) #include "v8config.h" // NOLINT(build/include_directory) namespace v8 { class Context; class Isolate; /** * An instance of the built-in array constructor (ECMA-262, 15.4.2). */ class V8_EXPORT Array : public Object { public: uint32_t Length() const; /** * Creates a JavaScript array with the given length. If the length * is negative the returned array will have length 0. */ static Local<Array> New(Isolate* isolate, int length = 0); /** * Creates a JavaScript array out of a Local<Value> array in C++ * with a known length. */ static Local<Array> New(Isolate* isolate, Local<Value>* elements, size_t length); V8_INLINE static Array* Cast(Value* value) { #ifdef V8_ENABLE_CHECKS CheckCast(value); #endif return static_cast<Array*>(value); } private: Array(); static void CheckCast(Value* obj); }; /** * An instance of the built-in Map constructor (ECMA-262, 6th Edition, 23.1.1). */ class V8_EXPORT Map : public Object { public: size_t Size() const; void Clear(); V8_WARN_UNUSED_RESULT MaybeLocal<Value> Get(Local<Context> context, Local<Value> key); V8_WARN_UNUSED_RESULT MaybeLocal<Map> Set(Local<Context> context, Local<Value> key, Local<Value> value); V8_WARN_UNUSED_RESULT Maybe<bool> Has(Local<Context> context, Local<Value> key); V8_WARN_UNUSED_RESULT Maybe<bool> Delete(Local<Context> context, Local<Value> key); /** * Returns an array of length Size() * 2, where index N is the Nth key and * index N + 1 is the Nth value. */ Local<Array> AsArray() const; /** * Creates a new empty Map. */ static Local<Map> New(Isolate* isolate); V8_INLINE static Map* Cast(Value* value) { #ifdef V8_ENABLE_CHECKS CheckCast(value); #endif return static_cast<Map*>(value); } private: Map(); static void CheckCast(Value* obj); }; /** * An instance of the built-in Set constructor (ECMA-262, 6th Edition, 23.2.1). */ class V8_EXPORT Set : public Object { public: size_t Size() const; void Clear(); V8_WARN_UNUSED_RESULT MaybeLocal<Set> Add(Local<Context> context, Local<Value> key); V8_WARN_UNUSED_RESULT Maybe<bool> Has(Local<Context> context, Local<Value> key); V8_WARN_UNUSED_RESULT Maybe<bool> Delete(Local<Context> context, Local<Value> key); /** * Returns an array of the keys in this Set. */ Local<Array> AsArray() const; /** * Creates a new empty Set. */ static Local<Set> New(Isolate* isolate); V8_INLINE static Set* Cast(Value* value) { #ifdef V8_ENABLE_CHECKS CheckCast(value); #endif return static_cast<Set*>(value); } private: Set(); static void CheckCast(Value* obj); }; } // namespace v8 #endif // INCLUDE_V8_CONTAINER_H_