blob: 21bb919d8fd81bd0790c9f4d0b22cc30323600c3 [file] [log] [blame]
// Copyright 2021 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_TRANSFORM_INLINE_POINTER_LETS_H_
#define SRC_TRANSFORM_INLINE_POINTER_LETS_H_
#include <string>
#include <unordered_map>
#include "src/transform/transform.h"
namespace tint {
namespace transform {
/// InlinePointerLets is a Transform that moves all usage of function-scope
/// `let` statements of a pointer type into their places of usage.
///
/// Parameters of a pointer type are not adjusted.
///
/// Note: InlinePointerLets does not operate on module-scope `let`s, as these
/// cannot be pointers: https://gpuweb.github.io/gpuweb/wgsl/#module-constants
/// `A module-scope let-declared constant must be of constructible type.`
class InlinePointerLets : public Castable<InlinePointerLets, Transform> {
public:
/// Constructor
InlinePointerLets();
/// Destructor
~InlinePointerLets() override;
protected:
/// Runs the transform using the CloneContext built for transforming a
/// program. Run() is responsible for calling Clone() on the CloneContext.
/// @param ctx the CloneContext primed with the input program and
/// ProgramBuilder
/// @param inputs optional extra transform-specific input data
/// @param outputs optional extra transform-specific output data
void Run(CloneContext& ctx, const DataMap& inputs, DataMap& outputs) override;
};
} // namespace transform
} // namespace tint
#endif // SRC_TRANSFORM_INLINE_POINTER_LETS_H_