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This is the first step in unifying the way decorations are parsed - i.e. instead of parsing decorations in different ways based on the predicted grammar that follows, we can parse decorations blocks in a unified way, then later verify what we have is as expected. `StructDecoration` has been transformed from an `enum class` to a proper class so it can derive from `Decoration`. Bug: tint:282 Bug: tint:291 Change-Id: Iaf12d266068d03edf695acdf2cd21e6cc3ea8eb3 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/31663 Reviewed-by: dan sinclair <dsinclair@chromium.org> Commit-Queue: Ben Clayton <bclayton@google.com>
64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
// Copyright 2020 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_FUNCTION_DECORATION_H_
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#define SRC_AST_FUNCTION_DECORATION_H_
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#include <memory>
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#include <ostream>
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#include <vector>
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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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class StageDecoration;
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class WorkgroupDecoration;
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/// A decoration attached to a function
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class FunctionDecoration : public Decoration {
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public:
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/// The kind of decoration that this type represents
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static constexpr DecorationKind Kind = DecorationKind::kFunction;
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~FunctionDecoration() override;
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/// @returns true if this is a stage decoration
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virtual bool IsStage() const;
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/// @returns true if this is a workgroup decoration
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virtual bool IsWorkgroup() const;
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/// @returns the decoration as a stage decoration
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const StageDecoration* AsStage() const;
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/// @returns the decoration as a workgroup decoration
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const WorkgroupDecoration* AsWorkgroup() const;
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/// Outputs the function decoration to the given stream
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/// @param out the stream to output too
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virtual void to_str(std::ostream& out) const = 0;
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protected:
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/// Constructor
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FunctionDecoration();
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};
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/// A list of unique function decorations
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using FunctionDecorationList = std::vector<std::unique_ptr<FunctionDecoration>>;
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} // namespace ast
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} // namespace tint
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#endif // SRC_AST_FUNCTION_DECORATION_H_
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