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c7f51b7d3c
Instead of just having a single `DecorationKind` for the first derivation from `Decoration`, have a `DecorationKind` for every decoration type. Add `Decoration::IsKind()` to test whether the decoration is of, or derives from the given kind. Note, this change is originally by bclayton@ from https://dawn-review.googlesource.com/c/tint/+/33201 R=bclayton@google.com Bug: tint:287 Change-Id: I69b51dfaa3f82ef4d61cda383b2f98f401013429 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/33280 Commit-Queue: dan sinclair <dsinclair@chromium.org> Commit-Queue: Ben Clayton <bclayton@google.com> Auto-Submit: dan sinclair <dsinclair@chromium.org> Reviewed-by: Ben Clayton <bclayton@google.com>
60 lines
1.9 KiB
C++
60 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_CONSTANT_ID_DECORATION_H_
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#define SRC_AST_CONSTANT_ID_DECORATION_H_
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#include "src/ast/builtin.h"
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#include "src/ast/variable_decoration.h"
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namespace tint {
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namespace ast {
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/// A constant id decoration
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class ConstantIdDecoration : public VariableDecoration {
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public:
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/// The kind of decoration that this type represents
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static constexpr const DecorationKind Kind = DecorationKind::kConstantId;
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/// constructor
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/// @param val the constant_id value
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/// @param source the source of this decoration
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ConstantIdDecoration(uint32_t val, const Source& source);
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~ConstantIdDecoration() override;
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/// @param kind the decoration kind
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/// @return true if this Decoration is of the (or derives from) the given
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/// kind.
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bool IsKind(DecorationKind kind) const override;
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/// @returns true if this is a constant_id decoration
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bool IsConstantId() const override;
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/// @returns the constant id value
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uint32_t value() const { return value_; }
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/// Outputs the decoration to the given stream
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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(std::ostream& out, size_t indent) const override;
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private:
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uint32_t value_ = 0;
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};
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} // namespace ast
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} // namespace tint
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#endif // SRC_AST_CONSTANT_ID_DECORATION_H_
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