1 // Copyright 2020 The Tint Authors. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef SRC_AST_ALIAS_H_ 16 #define SRC_AST_ALIAS_H_ 17 18 #include <string> 19 20 #include "src/ast/type_decl.h" 21 22 namespace tint { 23 namespace ast { 24 25 /// A type alias type. Holds a name and pointer to another type. 26 class Alias : public Castable<Alias, TypeDecl> { 27 public: 28 /// Constructor 29 /// @param pid the identifier of the program that owns this node 30 /// @param src the source of this node 31 /// @param name the symbol for the alias 32 /// @param subtype the alias'd type 33 Alias(ProgramID pid, 34 const Source& src, 35 const Symbol& name, 36 const Type* subtype); 37 /// Move constructor 38 Alias(Alias&&); 39 /// Destructor 40 ~Alias() override; 41 42 /// Clones this type and all transitive types using the `CloneContext` `ctx`. 43 /// @param ctx the clone context 44 /// @return the newly cloned type 45 const Alias* Clone(CloneContext* ctx) const override; 46 47 /// the alias type 48 const Type* const type; 49 }; 50 51 } // namespace ast 52 } // namespace tint 53 54 #endif // SRC_AST_ALIAS_H_ 55