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9caffa4491
This CL adds constant id helper methods to the decorated variable class. Bug: tint:150 Change-Id: Icfdc516f37d4f2680d2b990879bff722085cf732 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/29082 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dan sinclair <dsinclair@chromium.org>
79 lines
2.5 KiB
C++
79 lines
2.5 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_DECORATED_VARIABLE_H_
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#define SRC_AST_DECORATED_VARIABLE_H_
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#include <memory>
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#include <utility>
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#include "src/ast/variable.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 Decorated Variable statement.
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class DecoratedVariable : public Variable {
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public:
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/// Create a new empty decorated variable statement
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DecoratedVariable();
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/// Create a decorated variable from an existing variable
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/// @param var the variable to initialize from
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explicit DecoratedVariable(std::unique_ptr<Variable> var);
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/// Move constructor
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DecoratedVariable(DecoratedVariable&&);
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~DecoratedVariable() override;
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/// Sets a decoration to the variable
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/// @param decos the decorations to set
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void set_decorations(VariableDecorationList decos) {
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decorations_ = std::move(decos);
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}
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/// @returns the decorations attached to this variable
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const VariableDecorationList& decorations() const { return decorations_; }
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/// @returns true if the decorations include a LocationDecoration
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bool HasLocationDecoration() const;
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/// @returns true if the deocrations include a BuiltinDecoration
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bool HasBuiltinDecoration() const;
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/// @returns true if the decorations include a ConstantIdDecoration
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bool HasConstantIdDecoration() const;
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/// @returns the constant_id value for the variable. Assumes that
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/// |HasConstantIdDecoration| has been called first.
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uint32_t constant_id() const;
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/// @returns true if this is a decorated variable
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bool IsDecorated() const override;
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/// @returns true if the name and path are both present
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bool IsValid() const override;
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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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DecoratedVariable(const DecoratedVariable&) = delete;
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VariableDecorationList decorations_;
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};
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} // namespace ast
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} // namespace tint
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#endif // SRC_AST_DECORATED_VARIABLE_H_
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