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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_TRANSFORM_PROMOTE_SIDE_EFFECTS_TO_DECL_H_
#define SRC_TINT_TRANSFORM_PROMOTE_SIDE_EFFECTS_TO_DECL_H_
#include "src/tint/transform/transform.h"
namespace tint::transform {
/// A transform that hoists expressions with side-effects to variable
/// declarations before the statement of usage with the goal of ensuring
/// left-to-right order of evaluation, while respecting short-circuit
/// evaluation.
class PromoteSideEffectsToDecl : public Castable<PromoteSideEffectsToDecl, Transform> {
public:
/// Constructor
PromoteSideEffectsToDecl();
/// Destructor
~PromoteSideEffectsToDecl() override;
protected:
/// Runs the transform on `program`, returning the transformation result.
/// @param program the source program to transform
/// @param data optional extra transform-specific data
/// @returns the transformation result
Output Run(const Program* program, const DataMap& data = {}) const override;
};
} // namespace tint::transform
#endif // SRC_TINT_TRANSFORM_PROMOTE_SIDE_EFFECTS_TO_DECL_H_