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// Copyright 2022 The Dawn & Tint Authors
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#ifndef SRC_TINT_LANG_WGSL_AST_TRANSFORM_PROMOTE_SIDE_EFFECTS_TO_DECL_H_
#define SRC_TINT_LANG_WGSL_AST_TRANSFORM_PROMOTE_SIDE_EFFECTS_TO_DECL_H_
#include "src/tint/lang/wgsl/ast/transform/transform.h"
namespace tint::ast::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.
/// As `@diagnostic` statements can be decomposed, this transform requires that the
/// DisableUniformityAnalysis transform is run first.
class PromoteSideEffectsToDecl final : public Castable<PromoteSideEffectsToDecl, Transform> {
public:
/// Constructor
PromoteSideEffectsToDecl();
/// Destructor
~PromoteSideEffectsToDecl() override;
/// @copydoc Transform::Apply
ApplyResult Apply(const Program& program,
const DataMap& inputs,
DataMap& outputs) const override;
};
} // namespace tint::ast::transform
#endif // SRC_TINT_LANG_WGSL_AST_TRANSFORM_PROMOTE_SIDE_EFFECTS_TO_DECL_H_