1 // Copyright 2020 Google LLC 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 #ifndef SANDBOXED_API_TOOLS_CLANG_GENERATOR_EMITTER_H_ 16 #define SANDBOXED_API_TOOLS_CLANG_GENERATOR_EMITTER_H_ 17 18 #include <string> 19 #include <vector> 20 21 #include "absl/status/status.h" 22 #include "absl/status/statusor.h" 23 #include "clang/AST/Decl.h" 24 #include "clang/AST/Type.h" 25 #include "sandboxed_api/tools/clang_generator/emitter_base.h" 26 27 namespace sapi { 28 29 // Forward declaration to avoid circular dependencies. 30 struct GeneratorOptions; 31 32 // Responsible for emitting the actual textual representation of the generated 33 // Sandboxed API header. 34 class Emitter : public EmitterBase { 35 public: 36 // Adds a function to the list of functions to be rendered. In addition, it 37 // stores the original and SAPI function information for safe drop-in 38 // generation. 39 absl::Status AddFunction(clang::FunctionDecl* decl) override; 40 41 // Outputs a formatted header for a list of functions and their related types. 42 absl::StatusOr<std::string> EmitHeader(const GeneratorOptions& options); 43 44 protected: 45 // Rendered function bodies, as a vector to preserve source order. This is 46 // not strictly necessary, but makes the output look less surprising. 47 std::vector<std::string> rendered_functions_ordered_; 48 }; 49 50 } // namespace sapi 51 52 #endif // SANDBOXED_API_TOOLS_CLANG_GENERATOR_EMITTER_H_ 53