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// 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/codegen/code-stub-assembler.h"
namespace v8 {
namespace internal {
// 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(const TNode<Object> value);
TNode<FixedArray> ToFixedArray();
TNode<JSArray> ToJSArray(const TNode<Context> 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(const TNode<IntPtrT> element_count,
const TNode<IntPtrT> 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_
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