// Copyright 2018 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_BUILTINS_GROWABLE_FIXED_ARRAY_GEN_H_ #define V8_BUILTINS_GROWABLE_FIXED_ARRAY_GEN_H_ #include "src/code-stub-assembler.h" namespace v8 { namespace internal { template <class T> using TNode = compiler::TNode<T>; // Utility class implementing a growable fixed array through CSA. class GrowableFixedArray : public CodeStubAssembler { public: explicit GrowableFixedArray(compiler::CodeAssemblerState* state) : CodeStubAssembler(state), var_array_(this), var_length_(this), var_capacity_(this) { var_array_ = EmptyFixedArrayConstant(); var_capacity_ = IntPtrConstant(0); var_length_ = IntPtrConstant(0); } TNode<IntPtrT> length() const { return var_length_.value(); } TVariable<FixedArray>* var_array() { return &var_array_; } TVariable<IntPtrT>* var_length() { return &var_length_; } TVariable<IntPtrT>* var_capacity() { return &var_capacity_; } void Push(TNode<Object> const value); TNode<JSArray> ToJSArray(TNode<Context> const context); private: TNode<IntPtrT> NewCapacity(TNode<IntPtrT> current_capacity); // Creates a new array with {new_capacity} and copies the first // {element_count} elements from the current array. TNode<FixedArray> ResizeFixedArray(TNode<IntPtrT> const element_count, TNode<IntPtrT> const new_capacity); private: TVariable<FixedArray> var_array_; TVariable<IntPtrT> var_length_; TVariable<IntPtrT> var_capacity_; }; } // namespace internal } // namespace v8 #endif // V8_BUILTINS_GROWABLE_FIXED_ARRAY_GEN_H_