1 // Copyright 2022 The Abseil 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 // https://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 // ----------------------------------------------------------------------------- 16 // File: log/internal/structured.h 17 // ----------------------------------------------------------------------------- 18 19 #ifndef ABSL_LOG_INTERNAL_STRUCTURED_H_ 20 #define ABSL_LOG_INTERNAL_STRUCTURED_H_ 21 22 #include <ostream> 23 24 #include "absl/base/config.h" 25 #include "absl/base/attributes.h" 26 #include "absl/log/internal/log_message.h" 27 #include "absl/strings/string_view.h" 28 29 namespace absl { 30 ABSL_NAMESPACE_BEGIN 31 namespace log_internal { 32 33 class ABSL_MUST_USE_RESULT AsLiteralImpl final { 34 public: AsLiteralImpl(absl::string_view str ABSL_ATTRIBUTE_LIFETIME_BOUND)35 explicit AsLiteralImpl(absl::string_view str ABSL_ATTRIBUTE_LIFETIME_BOUND) 36 : str_(str) {} 37 AsLiteralImpl(const AsLiteralImpl&) = default; 38 AsLiteralImpl& operator=(const AsLiteralImpl&) = default; 39 40 private: 41 absl::string_view str_; 42 43 friend std::ostream& operator<<(std::ostream& os, 44 AsLiteralImpl&& as_literal) { 45 return os << as_literal.str_; 46 } AddToMessage(log_internal::LogMessage & m)47 void AddToMessage(log_internal::LogMessage& m) { 48 m.CopyToEncodedBuffer<log_internal::LogMessage::StringType::kLiteral>(str_); 49 } 50 friend log_internal::LogMessage& operator<<(log_internal::LogMessage& m, 51 AsLiteralImpl as_literal) { 52 as_literal.AddToMessage(m); 53 return m; 54 } 55 }; 56 57 } // namespace log_internal 58 ABSL_NAMESPACE_END 59 } // namespace absl 60 61 #endif // ABSL_LOG_INTERNAL_STRUCTURED_H_ 62