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// Protocol Buffers - Google's data interchange format // Copyright 2008 Google Inc. All rights reserved. // https://developers.google.com/protocol-buffers/ // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // Author: [email protected] (Will Robinson) // // Generates Python code for a given .proto file. #ifndef GOOGLE_PROTOBUF_COMPILER_PYTHON_GENERATOR_H__ #define GOOGLE_PROTOBUF_COMPILER_PYTHON_GENERATOR_H__ #include <string> #include <google/protobuf/compiler/code_generator.h> #include <google/protobuf/stubs/mutex.h> #include <google/protobuf/stubs/common.h> namespace google { namespace protobuf { class Descriptor; class EnumDescriptor; class EnumValueDescriptor; class FieldDescriptor; class OneofDescriptor; class ServiceDescriptor; namespace io { class Printer; } namespace compiler { namespace python { // CodeGenerator implementation for generated Python protocol buffer classes. // If you create your own protocol compiler binary and you want it to support // Python output, you can do so by registering an instance of this // CodeGenerator with the CommandLineInterface in your main() function. class LIBPROTOC_EXPORT Generator : public CodeGenerator { public: Generator(); virtual ~Generator(); // CodeGenerator methods. virtual bool Generate(const FileDescriptor* file, const string& parameter, GeneratorContext* generator_context, string* error) const; private: void PrintImports() const; void PrintFileDescriptor() const; void PrintTopLevelEnums() const; void PrintAllNestedEnumsInFile() const; void PrintNestedEnums(const Descriptor& descriptor) const; void PrintEnum(const EnumDescriptor& enum_descriptor) const; void PrintTopLevelExtensions() const; void PrintFieldDescriptor( const FieldDescriptor& field, bool is_extension) const; void PrintFieldDescriptorsInDescriptor( const Descriptor& message_descriptor, bool is_extension, const string& list_variable_name, int (Descriptor::*CountFn)() const, const FieldDescriptor* (Descriptor::*GetterFn)(int) const) const; void PrintFieldsInDescriptor(const Descriptor& message_descriptor) const; void PrintExtensionsInDescriptor(const Descriptor& message_descriptor) const; void PrintMessageDescriptors() const; void PrintDescriptor(const Descriptor& message_descriptor) const; void PrintNestedDescriptors(const Descriptor& containing_descriptor) const; void PrintMessages() const; void PrintMessage(const Descriptor& message_descriptor, const string& prefix, std::vector<string>* to_register) const; void PrintNestedMessages(const Descriptor& containing_descriptor, const string& prefix, std::vector<string>* to_register) const; void FixForeignFieldsInDescriptors() const; void FixForeignFieldsInDescriptor( const Descriptor& descriptor, const Descriptor* containing_descriptor) const; void FixForeignFieldsInField(const Descriptor* containing_type, const FieldDescriptor& field, const string& python_dict_name) const; void AddMessageToFileDescriptor(const Descriptor& descriptor) const; void AddEnumToFileDescriptor(const EnumDescriptor& descriptor) const; void AddExtensionToFileDescriptor(const FieldDescriptor& descriptor) const; void AddServiceToFileDescriptor(const ServiceDescriptor& descriptor) const; string FieldReferencingExpression(const Descriptor* containing_type, const FieldDescriptor& field, const string& python_dict_name) const; template <typename DescriptorT> void FixContainingTypeInDescriptor( const DescriptorT& descriptor, const Descriptor* containing_descriptor) const; void FixForeignFieldsInExtensions() const; void FixForeignFieldsInExtension( const FieldDescriptor& extension_field) const; void FixForeignFieldsInNestedExtensions(const Descriptor& descriptor) const; void PrintServices() const; void PrintServiceDescriptors() const; void PrintServiceDescriptor(const ServiceDescriptor& descriptor) const; void PrintServiceClass(const ServiceDescriptor& descriptor) const; void PrintServiceStub(const ServiceDescriptor& descriptor) const; void PrintDescriptorKeyAndModuleName( const ServiceDescriptor& descriptor) const; void PrintEnumValueDescriptor(const EnumValueDescriptor& descriptor) const; string OptionsValue(const string& serialized_options) const; bool GeneratingDescriptorProto() const; template <typename DescriptorT> string ModuleLevelDescriptorName(const DescriptorT& descriptor) const; string ModuleLevelMessageName(const Descriptor& descriptor) const; string ModuleLevelServiceDescriptorName( const ServiceDescriptor& descriptor) const; template <typename DescriptorT, typename DescriptorProtoT> void PrintSerializedPbInterval( const DescriptorT& descriptor, DescriptorProtoT& proto) const; void FixAllDescriptorOptions() const; void FixOptionsForField(const FieldDescriptor& field) const; void FixOptionsForOneof(const OneofDescriptor& oneof) const; void FixOptionsForEnum(const EnumDescriptor& descriptor) const; void FixOptionsForMessage(const Descriptor& descriptor) const; void CopyPublicDependenciesAliases( const string& copy_from, const FileDescriptor* file) const; // Very coarse-grained lock to ensure that Generate() is reentrant. // Guards file_, printer_ and file_descriptor_serialized_. mutable Mutex mutex_; mutable const FileDescriptor* file_; // Set in Generate(). Under mutex_. mutable string file_descriptor_serialized_; mutable io::Printer* printer_; // Set in Generate(). Under mutex_. GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(Generator); }; } // namespace python } // namespace compiler } // namespace protobuf } // namespace google #endif // GOOGLE_PROTOBUF_COMPILER_PYTHON_GENERATOR_H__