// 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
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#ifndef SRC_TINT_LANG_HLSL_WRITER_AST_RAISE_REMOVE_CONTINUE_IN_SWITCH_H_
#define SRC_TINT_LANG_HLSL_WRITER_AST_RAISE_REMOVE_CONTINUE_IN_SWITCH_H_

#include "src/tint/lang/wgsl/ast/transform/transform.h"

namespace tint::hlsl::writer {

/// This transform replaces continue statements in switch cases with setting a
/// bool variable, and checking if the variable is set after the switch to
/// continue. It is necessary to work around FXC "error X3708: continue cannot
/// be used in a switch". See crbug.com/tint/1080.
class RemoveContinueInSwitch final
    : public Castable<RemoveContinueInSwitch, ast::transform::Transform> {
  public:
    /// Constructor
    RemoveContinueInSwitch();

    /// Destructor
    ~RemoveContinueInSwitch() override;

    /// @copydoc ast::transform::Transform::Apply
    ApplyResult Apply(const Program& program,
                      const ast::transform::DataMap& inputs,
                      ast::transform::DataMap& outputs) const override;

  private:
    struct State;
};

}  // namespace tint::hlsl::writer

#endif  // SRC_TINT_LANG_HLSL_WRITER_AST_RAISE_REMOVE_CONTINUE_IN_SWITCH_H_