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// Copyright 2023 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_VAR_H_
#define SRC_TINT_IR_VAR_H_
#include "src/tint/builtin/access.h"
#include "src/tint/builtin/address_space.h"
#include "src/tint/ir/instruction.h"
#include "src/tint/utils/castable.h"
#include "src/tint/utils/string_stream.h"
namespace tint::ir {
/// An instruction in the IR.
class Var : public utils::Castable<Var, Instruction> {
public:
/// Constructor
/// @param id the instruction id
/// @param type the type
/// @param address_space the address space of the var
/// @param access the access mode of the var
Var(uint32_t id,
const type::Type* type,
builtin::AddressSpace address_space,
builtin::Access access);
Var(const Var& inst) = delete;
Var(Var&& inst) = delete;
~Var() override;
Var& operator=(const Var& inst) = delete;
Var& operator=(Var&& inst) = delete;
/// @returns the address space
builtin::AddressSpace AddressSpace() const { return address_space_; }
/// @returns the access mode
builtin::Access Access() const { return access_; }
/// Write the instruction to the given stream
/// @param out the stream to write to
/// @returns the stream
utils::StringStream& ToInstruction(utils::StringStream& out) const override;
private:
builtin::AddressSpace address_space_;
builtin::Access access_;
};
} // namespace tint::ir
#endif // SRC_TINT_IR_VAR_H_