compiler/kotlin/generator.h

0001 // Protocol Buffers - Google's data interchange format
0002 // Copyright 2008 Google Inc.  All rights reserved.
0003 //
0004 // Use of this source code is governed by a BSD-style
0005 // license that can be found in the LICENSE file or at
0006 // https://developers.google.com/open-source/licenses/bsd
0007
0008 // Generates Kotlin code for a given .proto file.
0009
0010 #ifndef GOOGLE_PROTOBUF_COMPILER_KOTLIN_GENERATOR_H__
0011 #define GOOGLE_PROTOBUF_COMPILER_KOTLIN_GENERATOR_H__
0012
0013 #include <cstdint>
0014 #include <string>
0015 #include <vector>
0016
0017 #include "google/protobuf/compiler/java/java_features.pb.h"
0018 #include "google/protobuf/compiler/code_generator.h"
0019 #include "google/protobuf/descriptor.pb.h"
0020
0021 // Must be included last.
0022 #include "google/protobuf/port_def.inc"
0023
0024 namespace google {
0025 namespace protobuf {
0026 namespace compiler {
0027 namespace kotlin {
0028
0029 // CodeGenerator implementation which generates Kotlin code.  If you create your
0030 // own protocol compiler binary and you want it to support Kotlin output, you
0031 // can do so by registering an instance of this CodeGenerator with the
0032 // CommandLineInterface in your main() function.
0033 class PROTOC_EXPORT KotlinGenerator : public CodeGenerator {
0034  public:
0035   KotlinGenerator();
0036   KotlinGenerator(const KotlinGenerator&) = delete;
0037   KotlinGenerator& operator=(const KotlinGenerator&) = delete;
0038   ~KotlinGenerator() override;
0039
0040   // implements CodeGenerator ----------------------------------------
0041   bool Generate(const FileDescriptor* file, const std::string& parameter,
0042                 GeneratorContext* context, std::string* error) const override;
0043
0044   uint64_t GetSupportedFeatures() const override;
0045
0046   Edition GetMinimumEdition() const override { return Edition::EDITION_PROTO2; }
0047   Edition GetMaximumEdition() const override {
0048     return Edition::EDITION_2024;
0049   }
0050
0051   std::vector<const FieldDescriptor*> GetFeatureExtensions() const override {
0052     return {GetExtensionReflection(pb::java)};
0053   }
0054
0055   using CodeGenerator::GetResolvedSourceFeatures;
0056 };
0057
0058 }  // namespace kotlin
0059 }  // namespace compiler
0060 }  // namespace protobuf
0061 }  // namespace google
0062
0063 #include "google/protobuf/port_undef.inc"
0064
0065 #endif  // GOOGLE_PROTOBUF_COMPILER_KOTLIN_GENERATOR_H__