57 lines
1.9 KiB
C++
57 lines
1.9 KiB
C++
// Copyright 2021 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SRC_AST_INTERNAL_DECORATION_H_
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#define SRC_AST_INTERNAL_DECORATION_H_
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#include <string>
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#include "src/ast/decoration.h"
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namespace tint {
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namespace ast {
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/// A decoration used to indicate that a function is tint-internal.
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/// These decorations are not produced by generators, but instead are usually
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/// created by transforms for consumption by a particular backend.
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class InternalDecoration : public Castable<InternalDecoration, Decoration> {
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public:
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/// Constructor
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/// @param program_id the identifier of the program that owns this node
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explicit InternalDecoration(ProgramID program_id);
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/// Destructor
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~InternalDecoration() override;
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/// @return a short description of the internal decoration which will be
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/// displayed in WGSL as `[[internal(<name>)]]` (but is not parsable).
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virtual std::string InternalName() const = 0;
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/// @returns the WGSL name for the decoration
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std::string name() const override;
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/// Writes a representation of the node to the output stream
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/// @param sem the semantic info for the program
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/// @param out the stream to write to
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/// @param indent number of spaces to indent the node when writing
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void to_str(const sem::Info& sem,
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std::ostream& out,
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size_t indent) const override;
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};
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} // namespace ast
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} // namespace tint
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#endif // SRC_AST_INTERNAL_DECORATION_H_
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