1 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 2 // -*- mode: C++ -*- 3 // 4 // Copyright 2022-2024 Google LLC 5 // 6 // Licensed under the Apache License v2.0 with LLVM Exceptions (the 7 // "License"); you may not use this file except in compliance with the 8 // License. You may obtain a copy of the License at 9 // 10 // https://llvm.org/LICENSE.txt 11 // 12 // Unless required by applicable law or agreed to in writing, software 13 // distributed under the License is distributed on an "AS IS" BASIS, 14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 // See the License for the specific language governing permissions and 16 // limitations under the License. 17 // 18 // Author: Ignes Simeonova 19 // Author: Aleksei Vetrov 20 21 #ifndef STG_SCOPE_H_ 22 #define STG_SCOPE_H_ 23 24 #include <cstddef> 25 #include <string> 26 27 namespace stg { 28 29 struct Scope { 30 std::string name; 31 bool named = true; 32 }; 33 34 class PushScopeName { 35 public: 36 template <typename Kind> PushScopeName(Scope & scope,Kind && kind,const std::string & name)37 PushScopeName(Scope& scope, Kind&& kind, const std::string& name) 38 : scope_(scope), old_size_(scope_.name.size()), 39 old_named_(scope_.named) { 40 if (name.empty()) { 41 scope_.name += "<unnamed "; 42 scope_.name += kind; 43 scope_.name += ">::"; 44 scope_.named = false; 45 } else { 46 scope_.name += name; 47 scope_.name += "::"; 48 } 49 } 50 51 PushScopeName(const PushScopeName& other) = delete; 52 PushScopeName& operator=(const PushScopeName& other) = delete; ~PushScopeName()53 ~PushScopeName() { 54 scope_.name.resize(old_size_); 55 scope_.named = old_named_; 56 } 57 58 private: 59 Scope& scope_; 60 const size_t old_size_; 61 const bool old_named_; 62 }; 63 64 } // namespace stg 65 66 #endif // STG_SCOPE_H_ 67