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Derives from semantic::Expression. Maps to ast::IdentifierExpressions that resolve to a variable. Breaks pure-immutability of semantic::Variable, as we have discussed in the past. Change-Id: I362d4d1ed61291282a60626b84fb15566655fb14 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/46627 Commit-Queue: Ben Clayton <bclayton@google.com> Reviewed-by: James Price <jrprice@google.com>
63 lines
1.8 KiB
C++
63 lines
1.8 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_SEMANTIC_EXPRESSION_H_
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#define SRC_SEMANTIC_EXPRESSION_H_
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#include "src/ast/expression.h"
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#include "src/semantic/node.h"
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namespace tint {
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// Forward declarations
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namespace semantic {
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class Statement;
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} // namespace semantic
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namespace type {
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class Type;
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} // namespace type
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namespace semantic {
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/// Expression holds the semantic information for expression nodes.
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class Expression : public Castable<Expression, Node> {
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public:
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/// Constructor
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/// @param declaration the AST node
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/// @param type the resolved type of the expression
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/// @param statement the statement that owns this expression
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Expression(ast::Expression* declaration,
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type::Type* type,
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Statement* statement);
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/// @return the resolved type of the expression
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type::Type* Type() const { return type_; }
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/// @return the statement that owns this expression
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Statement* Stmt() const { return statement_; }
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/// @returns the AST node
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ast::Expression* Declaration() const { return declaration_; }
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private:
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ast::Expression* declaration_;
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type::Type* const type_;
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Statement* const statement_;
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};
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} // namespace semantic
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} // namespace tint
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#endif // SRC_SEMANTIC_EXPRESSION_H_
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