|  | // Copyright 2020 The Tint Authors. | 
|  | // | 
|  | // Licensed under the Apache License, Version 2.0 (the "License"); | 
|  | // you may not use this file except in compliance with the License. | 
|  | // You may obtain a copy of the License at | 
|  | // | 
|  | //     http://www.apache.org/licenses/LICENSE-2.0 | 
|  | // | 
|  | // Unless required by applicable law or agreed to in writing, software | 
|  | // distributed under the License is distributed on an "AS IS" BASIS, | 
|  | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
|  | // See the License for the specific language governing permissions and | 
|  | // limitations under the License. | 
|  |  | 
|  | #ifndef SRC_TINT_AST_IDENTIFIER_EXPRESSION_H_ | 
|  | #define SRC_TINT_AST_IDENTIFIER_EXPRESSION_H_ | 
|  |  | 
|  | #include "src/tint/ast/expression.h" | 
|  |  | 
|  | // Forward declarations | 
|  | namespace tint::ast { | 
|  | class Identifier; | 
|  | } | 
|  |  | 
|  | namespace tint::ast { | 
|  |  | 
|  | /// An identifier expression | 
|  | class IdentifierExpression final : public utils::Castable<IdentifierExpression, Expression> { | 
|  | public: | 
|  | /// Constructor | 
|  | /// @param pid the identifier of the program that owns this node | 
|  | /// @param nid the unique node identifier | 
|  | /// @param src the source of this node | 
|  | /// @param identifier the identifier | 
|  | IdentifierExpression(ProgramID pid, | 
|  | NodeID nid, | 
|  | const Source& src, | 
|  | const Identifier* identifier); | 
|  |  | 
|  | /// Destructor | 
|  | ~IdentifierExpression() override; | 
|  |  | 
|  | /// Clones this node and all transitive child nodes using the `CloneContext` | 
|  | /// `ctx`. | 
|  | /// @param ctx the clone context | 
|  | /// @return the newly cloned node | 
|  | const IdentifierExpression* Clone(CloneContext* ctx) const override; | 
|  |  | 
|  | /// The identifier for the expression | 
|  | Identifier const* const identifier; | 
|  | }; | 
|  |  | 
|  | }  // namespace tint::ast | 
|  |  | 
|  | #endif  // SRC_TINT_AST_IDENTIFIER_EXPRESSION_H_ |