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// Copyright 2022 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SRC_TINT_IR_TEMP_H_
#define SRC_TINT_IR_TEMP_H_
#include <ostream>
#include "src/tint/ir/value.h"
#include "src/tint/symbol_table.h"
namespace tint::ir {
/// Temporary value in the IR.
class Temp : public Castable<Temp, Value> {
public:
/// A value id.
using Id = uint32_t;
/// Constructor
/// @param type the type of the temporary
/// @param id the id for the value
Temp(const type::Type* type, Id id);
/// Destructor
~Temp() override;
Temp(const Temp&) = delete;
Temp(Temp&&) = delete;
Temp& operator=(const Temp&) = delete;
Temp& operator=(Temp&&) = delete;
/// @returns the value data as an `Id`.
Id AsId() const { return id_; }
/// @returns the type of the temporary
const type::Type* Type() const override { return type_; }
/// Write the temp to the given stream
/// @param out the stream to write to
/// @param st the symbol table
/// @returns the stream
std::ostream& ToString(std::ostream& out, const SymbolTable& st) const override;
private:
const type::Type* type_ = nullptr;
Id id_ = 0;
};
} // namespace tint::ir
#endif // SRC_TINT_IR_TEMP_H_