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// 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_TINT_LANG_WGSL_AST_TRANSFORM_DECOMPOSE_STRIDED_ARRAY_H_
#define SRC_TINT_LANG_WGSL_AST_TRANSFORM_DECOMPOSE_STRIDED_ARRAY_H_
#include "src/tint/lang/wgsl/ast/transform/transform.h"
namespace tint::ast::transform {
/// DecomposeStridedArray transforms replaces arrays with a non-default
/// `@stride` attribute with an array of structure elements, where the
/// structure contains a single field with an equivalent `@size` attribute.
/// `@stride` attributes on arrays that match the default stride are also
/// removed.
///
/// @note Depends on the following transforms to have been run first:
/// * SimplifyPointers
class DecomposeStridedArray final : public Castable<DecomposeStridedArray, Transform> {
public:
/// Constructor
DecomposeStridedArray();
/// Destructor
~DecomposeStridedArray() 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_DECOMPOSE_STRIDED_ARRAY_H_