diff options
Diffstat (limited to 'third_party/protobuf/src/google/protobuf/compiler/python/python_generator.cc')
| -rw-r--r-- | third_party/protobuf/src/google/protobuf/compiler/python/python_generator.cc | 1331 |
1 files changed, 0 insertions, 1331 deletions
diff --git a/third_party/protobuf/src/google/protobuf/compiler/python/python_generator.cc b/third_party/protobuf/src/google/protobuf/compiler/python/python_generator.cc deleted file mode 100644 index 4d500f90e9..0000000000 --- a/third_party/protobuf/src/google/protobuf/compiler/python/python_generator.cc +++ /dev/null @@ -1,1331 +0,0 @@ -// 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. - -//#PY25 compatible generated code for GAE. -// Copyright 2007 Google Inc. All Rights Reserved. -// Author: robinson@google.com (Will Robinson) -// -// This module outputs pure-Python protocol message classes that will -// largely be constructed at runtime via the metaclass in reflection.py. -// In other words, our job is basically to output a Python equivalent -// of the C++ *Descriptor objects, and fix up all circular references -// within these objects. -// -// Note that the runtime performance of protocol message classes created in -// this way is expected to be lousy. The plan is to create an alternate -// generator that outputs a Python/C extension module that lets -// performance-minded Python code leverage the fast C++ implementation -// directly. - -#include <google/protobuf/stubs/hash.h> -#include <limits> -#include <map> -#include <memory> -#ifndef _SHARED_PTR_H -#include <google/protobuf/stubs/shared_ptr.h> -#endif -#include <string> -#include <utility> -#include <vector> - -#include <google/protobuf/compiler/python/python_generator.h> -#include <google/protobuf/descriptor.pb.h> - -#include <google/protobuf/stubs/logging.h> -#include <google/protobuf/stubs/common.h> -#include <google/protobuf/stubs/stringprintf.h> -#include <google/protobuf/io/printer.h> -#include <google/protobuf/descriptor.h> -#include <google/protobuf/io/zero_copy_stream.h> -#include <google/protobuf/stubs/strutil.h> -#include <google/protobuf/stubs/substitute.h> - -namespace google { -namespace protobuf { -namespace compiler { -namespace python { - -namespace { - -// Returns a copy of |filename| with any trailing ".protodevel" or ".proto -// suffix stripped. -// TODO(robinson): Unify with copy in compiler/cpp/internal/helpers.cc. -string StripProto(const string& filename) { - const char* suffix = HasSuffixString(filename, ".protodevel") - ? ".protodevel" : ".proto"; - return StripSuffixString(filename, suffix); -} - - -// Returns the Python module name expected for a given .proto filename. -string ModuleName(const string& filename) { - string basename = StripProto(filename); - StripString(&basename, "-", '_'); - StripString(&basename, "/", '.'); - return basename + "_pb2"; -} - - -// Returns the alias we assign to the module of the given .proto filename -// when importing. See testPackageInitializationImport in -// google/protobuf/python/reflection_test.py -// to see why we need the alias. -string ModuleAlias(const string& filename) { - string module_name = ModuleName(filename); - // We can't have dots in the module name, so we replace each with _dot_. - // But that could lead to a collision between a.b and a_dot_b, so we also - // duplicate each underscore. - GlobalReplaceSubstring("_", "__", &module_name); - GlobalReplaceSubstring(".", "_dot_", &module_name); - return module_name; -} - - -// Returns an import statement of form "from X.Y.Z import T" for the given -// .proto filename. -string ModuleImportStatement(const string& filename) { - string module_name = ModuleName(filename); - int last_dot_pos = module_name.rfind('.'); - if (last_dot_pos == string::npos) { - // NOTE(petya): this is not tested as it would require a protocol buffer - // outside of any package, and I don't think that is easily achievable. - return "import " + module_name; - } else { - return "from " + module_name.substr(0, last_dot_pos) + " import " + - module_name.substr(last_dot_pos + 1); - } -} - - -// Returns the name of all containing types for descriptor, -// in order from outermost to innermost, followed by descriptor's -// own name. Each name is separated by |separator|. -template <typename DescriptorT> -string NamePrefixedWithNestedTypes(const DescriptorT& descriptor, - const string& separator) { - string name = descriptor.name(); - for (const Descriptor* current = descriptor.containing_type(); - current != NULL; current = current->containing_type()) { - name = current->name() + separator + name; - } - return name; -} - - -// Name of the class attribute where we store the Python -// descriptor.Descriptor instance for the generated class. -// Must stay consistent with the _DESCRIPTOR_KEY constant -// in proto2/public/reflection.py. -const char kDescriptorKey[] = "DESCRIPTOR"; - - -// Does the file have top-level enums? -inline bool HasTopLevelEnums(const FileDescriptor *file) { - return file->enum_type_count() > 0; -} - - -// Should we generate generic services for this file? -inline bool HasGenericServices(const FileDescriptor *file) { - return file->service_count() > 0 && - file->options().py_generic_services(); -} - - -// Prints the common boilerplate needed at the top of every .py -// file output by this generator. -void PrintTopBoilerplate( - io::Printer* printer, const FileDescriptor* file, bool descriptor_proto) { - // TODO(robinson): Allow parameterization of Python version? - printer->Print( - "# Generated by the protocol buffer compiler. DO NOT EDIT!\n" - "# source: $filename$\n" - "\nimport sys\n_b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))" //##PY25 - "\n", - "filename", file->name()); - if (HasTopLevelEnums(file)) { - printer->Print( - "from google.protobuf.internal import enum_type_wrapper\n"); - } - printer->Print( - "from google.protobuf import descriptor as _descriptor\n" - "from google.protobuf import message as _message\n" - "from google.protobuf import reflection as _reflection\n" - "from google.protobuf import symbol_database as " - "_symbol_database\n"); - if (HasGenericServices(file)) { - printer->Print( - "from google.protobuf import service as _service\n" - "from google.protobuf import service_reflection\n"); - } - - // Avoid circular imports if this module is descriptor_pb2. - if (!descriptor_proto) { - printer->Print( - "from google.protobuf import descriptor_pb2\n"); - } - printer->Print( - "# @@protoc_insertion_point(imports)\n\n" - "_sym_db = _symbol_database.Default()\n"); - printer->Print("\n\n"); -} - - -// Returns a Python literal giving the default value for a field. -// If the field specifies no explicit default value, we'll return -// the default default value for the field type (zero for numbers, -// empty string for strings, empty list for repeated fields, and -// None for non-repeated, composite fields). -// -// TODO(robinson): Unify with code from -// //compiler/cpp/internal/primitive_field.cc -// //compiler/cpp/internal/enum_field.cc -// //compiler/cpp/internal/string_field.cc -string StringifyDefaultValue(const FieldDescriptor& field) { - if (field.is_repeated()) { - return "[]"; - } - - switch (field.cpp_type()) { - case FieldDescriptor::CPPTYPE_INT32: - return SimpleItoa(field.default_value_int32()); - case FieldDescriptor::CPPTYPE_UINT32: - return SimpleItoa(field.default_value_uint32()); - case FieldDescriptor::CPPTYPE_INT64: - return SimpleItoa(field.default_value_int64()); - case FieldDescriptor::CPPTYPE_UINT64: - return SimpleItoa(field.default_value_uint64()); - case FieldDescriptor::CPPTYPE_DOUBLE: { - double value = field.default_value_double(); - if (value == numeric_limits<double>::infinity()) { - // Python pre-2.6 on Windows does not parse "inf" correctly. However, - // a numeric literal that is too big for a double will become infinity. - return "1e10000"; - } else if (value == -numeric_limits<double>::infinity()) { - // See above. - return "-1e10000"; - } else if (value != value) { - // infinity * 0 = nan - return "(1e10000 * 0)"; - } else { - return SimpleDtoa(value); - } - } - case FieldDescriptor::CPPTYPE_FLOAT: { - float value = field.default_value_float(); - if (value == numeric_limits<float>::infinity()) { - // Python pre-2.6 on Windows does not parse "inf" correctly. However, - // a numeric literal that is too big for a double will become infinity. - return "1e10000"; - } else if (value == -numeric_limits<float>::infinity()) { - // See above. - return "-1e10000"; - } else if (value != value) { - // infinity - infinity = nan - return "(1e10000 * 0)"; - } else { - return SimpleFtoa(value); - } - } - case FieldDescriptor::CPPTYPE_BOOL: - return field.default_value_bool() ? "True" : "False"; - case FieldDescriptor::CPPTYPE_ENUM: - return SimpleItoa(field.default_value_enum()->number()); - case FieldDescriptor::CPPTYPE_STRING: -//##!PY25 return "b\"" + CEscape(field.default_value_string()) + -//##!PY25 (field.type() != FieldDescriptor::TYPE_STRING ? "\"" : -//##!PY25 "\".decode('utf-8')"); - return "_b(\"" + CEscape(field.default_value_string()) + //##PY25 - (field.type() != FieldDescriptor::TYPE_STRING ? "\")" : //##PY25 - "\").decode('utf-8')"); //##PY25 - case FieldDescriptor::CPPTYPE_MESSAGE: - return "None"; - } - // (We could add a default case above but then we wouldn't get the nice - // compiler warning when a new type is added.) - GOOGLE_LOG(FATAL) << "Not reached."; - return ""; -} - -string StringifySyntax(FileDescriptor::Syntax syntax) { - switch (syntax) { - case FileDescriptor::SYNTAX_PROTO2: - return "proto2"; - case FileDescriptor::SYNTAX_PROTO3: - return "proto3"; - case FileDescriptor::SYNTAX_UNKNOWN: - default: - GOOGLE_LOG(FATAL) << "Unsupported syntax; this generator only supports proto2 " - "and proto3 syntax."; - return ""; - } -} - - -} // namespace - - -Generator::Generator() : file_(NULL) { -} - -Generator::~Generator() { -} - -bool Generator::Generate(const FileDescriptor* file, - const string& parameter, - GeneratorContext* context, - string* error) const { - - // Completely serialize all Generate() calls on this instance. The - // thread-safety constraints of the CodeGenerator interface aren't clear so - // just be as conservative as possible. It's easier to relax this later if - // we need to, but I doubt it will be an issue. - // TODO(kenton): The proper thing to do would be to allocate any state on - // the stack and use that, so that the Generator class itself does not need - // to have any mutable members. Then it is implicitly thread-safe. - MutexLock lock(&mutex_); - file_ = file; - string module_name = ModuleName(file->name()); - string filename = module_name; - StripString(&filename, ".", '/'); - filename += ".py"; - - FileDescriptorProto fdp; - file_->CopyTo(&fdp); - fdp.SerializeToString(&file_descriptor_serialized_); - - - google::protobuf::scoped_ptr<io::ZeroCopyOutputStream> output(context->Open(filename)); - GOOGLE_CHECK(output.get()); - io::Printer printer(output.get(), '$'); - printer_ = &printer; - - PrintTopBoilerplate(printer_, file_, GeneratingDescriptorProto()); - PrintImports(); - PrintFileDescriptor(); - PrintTopLevelEnums(); - PrintTopLevelExtensions(); - PrintAllNestedEnumsInFile(); - PrintMessageDescriptors(); - FixForeignFieldsInDescriptors(); - PrintMessages(); - // We have to fix up the extensions after the message classes themselves, - // since they need to call static RegisterExtension() methods on these - // classes. - FixForeignFieldsInExtensions(); - // Descriptor options may have custom extensions. These custom options - // can only be successfully parsed after we register corresponding - // extensions. Therefore we parse all options again here to recognize - // custom options that may be unknown when we define the descriptors. - FixAllDescriptorOptions(); - if (HasGenericServices(file)) { - PrintServices(); - } - - printer.Print( - "# @@protoc_insertion_point(module_scope)\n"); - - return !printer.failed(); -} - -// Prints Python imports for all modules imported by |file|. -void Generator::PrintImports() const { - for (int i = 0; i < file_->dependency_count(); ++i) { - const string& filename = file_->dependency(i)->name(); - string import_statement = ModuleImportStatement(filename); - string module_alias = ModuleAlias(filename); - printer_->Print("$statement$ as $alias$\n", "statement", - import_statement, "alias", module_alias); - CopyPublicDependenciesAliases(module_alias, file_->dependency(i)); - } - printer_->Print("\n"); - - // Print public imports. - for (int i = 0; i < file_->public_dependency_count(); ++i) { - string module_name = ModuleName(file_->public_dependency(i)->name()); - printer_->Print("from $module$ import *\n", "module", module_name); - } - printer_->Print("\n"); -} - -// Prints the single file descriptor for this file. -void Generator::PrintFileDescriptor() const { - map<string, string> m; - m["descriptor_name"] = kDescriptorKey; - m["name"] = file_->name(); - m["package"] = file_->package(); - m["syntax"] = StringifySyntax(file_->syntax()); - const char file_descriptor_template[] = - "$descriptor_name$ = _descriptor.FileDescriptor(\n" - " name='$name$',\n" - " package='$package$',\n" - " syntax='$syntax$',\n"; - printer_->Print(m, file_descriptor_template); - printer_->Indent(); - printer_->Print( -//##!PY25 "serialized_pb=b'$value$'\n", - "serialized_pb=_b('$value$')\n", //##PY25 - "value", strings::CHexEscape(file_descriptor_serialized_)); - if (file_->dependency_count() != 0) { - printer_->Print(",\ndependencies=["); - for (int i = 0; i < file_->dependency_count(); ++i) { - string module_alias = ModuleAlias(file_->dependency(i)->name()); - printer_->Print("$module_alias$.DESCRIPTOR,", "module_alias", - module_alias); - } - printer_->Print("]"); - } - - // TODO(falk): Also print options and fix the message_type, enum_type, - // service and extension later in the generation. - - printer_->Outdent(); - printer_->Print(")\n"); - printer_->Print("_sym_db.RegisterFileDescriptor($name$)\n", "name", - kDescriptorKey); - printer_->Print("\n"); -} - -// Prints descriptors and module-level constants for all top-level -// enums defined in |file|. -void Generator::PrintTopLevelEnums() const { - vector<pair<string, int> > top_level_enum_values; - for (int i = 0; i < file_->enum_type_count(); ++i) { - const EnumDescriptor& enum_descriptor = *file_->enum_type(i); - PrintEnum(enum_descriptor); - printer_->Print("$name$ = " - "enum_type_wrapper.EnumTypeWrapper($descriptor_name$)", - "name", enum_descriptor.name(), - "descriptor_name", - ModuleLevelDescriptorName(enum_descriptor)); - printer_->Print("\n"); - - for (int j = 0; j < enum_descriptor.value_count(); ++j) { - const EnumValueDescriptor& value_descriptor = *enum_descriptor.value(j); - top_level_enum_values.push_back( - std::make_pair(value_descriptor.name(), value_descriptor.number())); - } - } - - for (int i = 0; i < top_level_enum_values.size(); ++i) { - printer_->Print("$name$ = $value$\n", - "name", top_level_enum_values[i].first, - "value", SimpleItoa(top_level_enum_values[i].second)); - } - printer_->Print("\n"); -} - -// Prints all enums contained in all message types in |file|. -void Generator::PrintAllNestedEnumsInFile() const { - for (int i = 0; i < file_->message_type_count(); ++i) { - PrintNestedEnums(*file_->message_type(i)); - } -} - -// Prints a Python statement assigning the appropriate module-level -// enum name to a Python EnumDescriptor object equivalent to -// enum_descriptor. -void Generator::PrintEnum(const EnumDescriptor& enum_descriptor) const { - map<string, string> m; - string module_level_descriptor_name = - ModuleLevelDescriptorName(enum_descriptor); - m["descriptor_name"] = module_level_descriptor_name; - m["name"] = enum_descriptor.name(); - m["full_name"] = enum_descriptor.full_name(); - m["file"] = kDescriptorKey; - const char enum_descriptor_template[] = - "$descriptor_name$ = _descriptor.EnumDescriptor(\n" - " name='$name$',\n" - " full_name='$full_name$',\n" - " filename=None,\n" - " file=$file$,\n" - " values=[\n"; - string options_string; - enum_descriptor.options().SerializeToString(&options_string); - printer_->Print(m, enum_descriptor_template); - printer_->Indent(); - printer_->Indent(); - for (int i = 0; i < enum_descriptor.value_count(); ++i) { - PrintEnumValueDescriptor(*enum_descriptor.value(i)); - printer_->Print(",\n"); - } - printer_->Outdent(); - printer_->Print("],\n"); - printer_->Print("containing_type=None,\n"); - printer_->Print("options=$options_value$,\n", - "options_value", - OptionsValue("EnumOptions", options_string)); - EnumDescriptorProto edp; - PrintSerializedPbInterval(enum_descriptor, edp); - printer_->Outdent(); - printer_->Print(")\n"); - printer_->Print("_sym_db.RegisterEnumDescriptor($name$)\n", "name", - module_level_descriptor_name); - printer_->Print("\n"); -} - -// Recursively prints enums in nested types within descriptor, then -// prints enums contained at the top level in descriptor. -void Generator::PrintNestedEnums(const Descriptor& descriptor) const { - for (int i = 0; i < descriptor.nested_type_count(); ++i) { - PrintNestedEnums(*descriptor.nested_type(i)); - } - - for (int i = 0; i < descriptor.enum_type_count(); ++i) { - PrintEnum(*descriptor.enum_type(i)); - } -} - -void Generator::PrintTopLevelExtensions() const { - const bool is_extension = true; - for (int i = 0; i < file_->extension_count(); ++i) { - const FieldDescriptor& extension_field = *file_->extension(i); - string constant_name = extension_field.name() + "_FIELD_NUMBER"; - UpperString(&constant_name); - printer_->Print("$constant_name$ = $number$\n", - "constant_name", constant_name, - "number", SimpleItoa(extension_field.number())); - printer_->Print("$name$ = ", "name", extension_field.name()); - PrintFieldDescriptor(extension_field, is_extension); - printer_->Print("\n"); - } - printer_->Print("\n"); -} - -// Prints Python equivalents of all Descriptors in |file|. -void Generator::PrintMessageDescriptors() const { - for (int i = 0; i < file_->message_type_count(); ++i) { - PrintDescriptor(*file_->message_type(i)); - printer_->Print("\n"); - } -} - -void Generator::PrintServices() const { - for (int i = 0; i < file_->service_count(); ++i) { - PrintServiceDescriptor(*file_->service(i)); - PrintServiceClass(*file_->service(i)); - PrintServiceStub(*file_->service(i)); - printer_->Print("\n"); - } -} - -void Generator::PrintServiceDescriptor( - const ServiceDescriptor& descriptor) const { - printer_->Print("\n"); - string service_name = ModuleLevelServiceDescriptorName(descriptor); - string options_string; - descriptor.options().SerializeToString(&options_string); - - printer_->Print( - "$service_name$ = _descriptor.ServiceDescriptor(\n", - "service_name", service_name); - printer_->Indent(); - map<string, string> m; - m["name"] = descriptor.name(); - m["full_name"] = descriptor.full_name(); - m["file"] = kDescriptorKey; - m["index"] = SimpleItoa(descriptor.index()); - m["options_value"] = OptionsValue("ServiceOptions", options_string); - const char required_function_arguments[] = - "name='$name$',\n" - "full_name='$full_name$',\n" - "file=$file$,\n" - "index=$index$,\n" - "options=$options_value$,\n"; - printer_->Print(m, required_function_arguments); - - ServiceDescriptorProto sdp; - PrintSerializedPbInterval(descriptor, sdp); - - printer_->Print("methods=[\n"); - for (int i = 0; i < descriptor.method_count(); ++i) { - const MethodDescriptor* method = descriptor.method(i); - method->options().SerializeToString(&options_string); - - m.clear(); - m["name"] = method->name(); - m["full_name"] = method->full_name(); - m["index"] = SimpleItoa(method->index()); - m["serialized_options"] = CEscape(options_string); - m["input_type"] = ModuleLevelDescriptorName(*(method->input_type())); - m["output_type"] = ModuleLevelDescriptorName(*(method->output_type())); - m["options_value"] = OptionsValue("MethodOptions", options_string); - printer_->Print("_descriptor.MethodDescriptor(\n"); - printer_->Indent(); - printer_->Print( - m, - "name='$name$',\n" - "full_name='$full_name$',\n" - "index=$index$,\n" - "containing_service=None,\n" - "input_type=$input_type$,\n" - "output_type=$output_type$,\n" - "options=$options_value$,\n"); - printer_->Outdent(); - printer_->Print("),\n"); - } - - printer_->Outdent(); - printer_->Print("])\n\n"); -} - - -void Generator::PrintDescriptorKeyAndModuleName( - const ServiceDescriptor& descriptor) const { - printer_->Print( - "$descriptor_key$ = $descriptor_name$,\n", - "descriptor_key", kDescriptorKey, - "descriptor_name", ModuleLevelServiceDescriptorName(descriptor)); - printer_->Print( - "__module__ = '$module_name$'\n", - "module_name", ModuleName(file_->name())); -} - -void Generator::PrintServiceClass(const ServiceDescriptor& descriptor) const { - // Print the service. - printer_->Print("$class_name$ = service_reflection.GeneratedServiceType(" - "'$class_name$', (_service.Service,), dict(\n", - "class_name", descriptor.name()); - printer_->Indent(); - Generator::PrintDescriptorKeyAndModuleName(descriptor); - printer_->Print("))\n\n"); - printer_->Outdent(); -} - -void Generator::PrintServiceStub(const ServiceDescriptor& descriptor) const { - // Print the service stub. - printer_->Print("$class_name$_Stub = " - "service_reflection.GeneratedServiceStubType(" - "'$class_name$_Stub', ($class_name$,), dict(\n", - "class_name", descriptor.name()); - printer_->Indent(); - Generator::PrintDescriptorKeyAndModuleName(descriptor); - printer_->Print("))\n\n"); - printer_->Outdent(); -} - -// Prints statement assigning ModuleLevelDescriptorName(message_descriptor) -// to a Python Descriptor object for message_descriptor. -// -// Mutually recursive with PrintNestedDescriptors(). -void Generator::PrintDescriptor(const Descriptor& message_descriptor) const { - PrintNestedDescriptors(message_descriptor); - - printer_->Print("\n"); - printer_->Print("$descriptor_name$ = _descriptor.Descriptor(\n", - "descriptor_name", - ModuleLevelDescriptorName(message_descriptor)); - printer_->Indent(); - map<string, string> m; - m["name"] = message_descriptor.name(); - m["full_name"] = message_descriptor.full_name(); - m["file"] = kDescriptorKey; - const char required_function_arguments[] = - "name='$name$',\n" - "full_name='$full_name$',\n" - "filename=None,\n" - "file=$file$,\n" - "containing_type=None,\n"; - printer_->Print(m, required_function_arguments); - PrintFieldsInDescriptor(message_descriptor); - PrintExtensionsInDescriptor(message_descriptor); - - // Nested types - printer_->Print("nested_types=["); - for (int i = 0; i < message_descriptor.nested_type_count(); ++i) { - const string nested_name = ModuleLevelDescriptorName( - *message_descriptor.nested_type(i)); - printer_->Print("$name$, ", "name", nested_name); - } - printer_->Print("],\n"); - - // Enum types - printer_->Print("enum_types=[\n"); - printer_->Indent(); - for (int i = 0; i < message_descriptor.enum_type_count(); ++i) { - const string descriptor_name = ModuleLevelDescriptorName( - *message_descriptor.enum_type(i)); - printer_->Print(descriptor_name.c_str()); - printer_->Print(",\n"); - } - printer_->Outdent(); - printer_->Print("],\n"); - string options_string; - message_descriptor.options().SerializeToString(&options_string); - printer_->Print( - "options=$options_value$,\n" - "is_extendable=$extendable$,\n" - "syntax='$syntax$'", - "options_value", OptionsValue("MessageOptions", options_string), - "extendable", message_descriptor.extension_range_count() > 0 ? - "True" : "False", - "syntax", StringifySyntax(message_descriptor.file()->syntax())); - printer_->Print(",\n"); - - // Extension ranges - printer_->Print("extension_ranges=["); - for (int i = 0; i < message_descriptor.extension_range_count(); ++i) { - const Descriptor::ExtensionRange* range = - message_descriptor.extension_range(i); - printer_->Print("($start$, $end$), ", - "start", SimpleItoa(range->start), - "end", SimpleItoa(range->end)); - } - printer_->Print("],\n"); - printer_->Print("oneofs=[\n"); - printer_->Indent(); - for (int i = 0; i < message_descriptor.oneof_decl_count(); ++i) { - const OneofDescriptor* desc = message_descriptor.oneof_decl(i); - map<string, string> m; - m["name"] = desc->name(); - m["full_name"] = desc->full_name(); - m["index"] = SimpleItoa(desc->index()); - printer_->Print( - m, - "_descriptor.OneofDescriptor(\n" - " name='$name$', full_name='$full_name$',\n" - " index=$index$, containing_type=None, fields=[]),\n"); - } - printer_->Outdent(); - printer_->Print("],\n"); - // Serialization of proto - DescriptorProto edp; - PrintSerializedPbInterval(message_descriptor, edp); - - printer_->Outdent(); - printer_->Print(")\n"); -} - -// Prints Python Descriptor objects for all nested types contained in -// message_descriptor. -// -// Mutually recursive with PrintDescriptor(). -void Generator::PrintNestedDescriptors( - const Descriptor& containing_descriptor) const { - for (int i = 0; i < containing_descriptor.nested_type_count(); ++i) { - PrintDescriptor(*containing_descriptor.nested_type(i)); - } -} - -// Prints all messages in |file|. -void Generator::PrintMessages() const { - for (int i = 0; i < file_->message_type_count(); ++i) { - vector<string> to_register; - PrintMessage(*file_->message_type(i), "", &to_register); - for (int j = 0; j < to_register.size(); ++j) { - printer_->Print("_sym_db.RegisterMessage($name$)\n", "name", - to_register[j]); - } - printer_->Print("\n"); - } -} - -// Prints a Python class for the given message descriptor. We defer to the -// metaclass to do almost all of the work of actually creating a useful class. -// The purpose of this function and its many helper functions above is merely -// to output a Python version of the descriptors, which the metaclass in -// reflection.py will use to construct the meat of the class itself. -// -// Mutually recursive with PrintNestedMessages(). -// Collect nested message names to_register for the symbol_database. -void Generator::PrintMessage(const Descriptor& message_descriptor, - const string& prefix, - vector<string>* to_register) const { - string qualified_name(prefix + message_descriptor.name()); - to_register->push_back(qualified_name); - printer_->Print( - "$name$ = _reflection.GeneratedProtocolMessageType('$name$', " - "(_message.Message,), dict(\n", - "name", message_descriptor.name()); - printer_->Indent(); - - PrintNestedMessages(message_descriptor, qualified_name + ".", to_register); - map<string, string> m; - m["descriptor_key"] = kDescriptorKey; - m["descriptor_name"] = ModuleLevelDescriptorName(message_descriptor); - printer_->Print(m, "$descriptor_key$ = $descriptor_name$,\n"); - printer_->Print("__module__ = '$module_name$'\n", - "module_name", ModuleName(file_->name())); - printer_->Print("# @@protoc_insertion_point(class_scope:$full_name$)\n", - "full_name", message_descriptor.full_name()); - printer_->Print("))\n"); - printer_->Outdent(); -} - -// Prints all nested messages within |containing_descriptor|. -// Mutually recursive with PrintMessage(). -void Generator::PrintNestedMessages(const Descriptor& containing_descriptor, - const string& prefix, - vector<string>* to_register) const { - for (int i = 0; i < containing_descriptor.nested_type_count(); ++i) { - printer_->Print("\n"); - PrintMessage(*containing_descriptor.nested_type(i), prefix, to_register); - printer_->Print(",\n"); - } -} - -// Recursively fixes foreign fields in all nested types in |descriptor|, then -// sets the message_type and enum_type of all message and enum fields to point -// to their respective descriptors. -// Args: -// descriptor: descriptor to print fields for. -// containing_descriptor: if descriptor is a nested type, this is its -// containing type, or NULL if this is a root/top-level type. -void Generator::FixForeignFieldsInDescriptor( - const Descriptor& descriptor, - const Descriptor* containing_descriptor) const { - for (int i = 0; i < descriptor.nested_type_count(); ++i) { - FixForeignFieldsInDescriptor(*descriptor.nested_type(i), &descriptor); - } - - for (int i = 0; i < descriptor.field_count(); ++i) { - const FieldDescriptor& field_descriptor = *descriptor.field(i); - FixForeignFieldsInField(&descriptor, field_descriptor, "fields_by_name"); - } - - FixContainingTypeInDescriptor(descriptor, containing_descriptor); - for (int i = 0; i < descriptor.enum_type_count(); ++i) { - const EnumDescriptor& enum_descriptor = *descriptor.enum_type(i); - FixContainingTypeInDescriptor(enum_descriptor, &descriptor); - } - for (int i = 0; i < descriptor.oneof_decl_count(); ++i) { - map<string, string> m; - const OneofDescriptor* oneof = descriptor.oneof_decl(i); - m["descriptor_name"] = ModuleLevelDescriptorName(descriptor); - m["oneof_name"] = oneof->name(); - for (int j = 0; j < oneof->field_count(); ++j) { - m["field_name"] = oneof->field(j)->name(); - printer_->Print( - m, - "$descriptor_name$.oneofs_by_name['$oneof_name$'].fields.append(\n" - " $descriptor_name$.fields_by_name['$field_name$'])\n"); - printer_->Print( - m, - "$descriptor_name$.fields_by_name['$field_name$'].containing_oneof = " - "$descriptor_name$.oneofs_by_name['$oneof_name$']\n"); - } - } -} - -void Generator::AddMessageToFileDescriptor(const Descriptor& descriptor) const { - map<string, string> m; - m["descriptor_name"] = kDescriptorKey; - m["message_name"] = descriptor.name(); - m["message_descriptor_name"] = ModuleLevelDescriptorName(descriptor); - const char file_descriptor_template[] = - "$descriptor_name$.message_types_by_name['$message_name$'] = " - "$message_descriptor_name$\n"; - printer_->Print(m, file_descriptor_template); -} - -void Generator::AddEnumToFileDescriptor( - const EnumDescriptor& descriptor) const { - map<string, string> m; - m["descriptor_name"] = kDescriptorKey; - m["enum_name"] = descriptor.name(); - m["enum_descriptor_name"] = ModuleLevelDescriptorName(descriptor); - const char file_descriptor_template[] = - "$descriptor_name$.enum_types_by_name['$enum_name$'] = " - "$enum_descriptor_name$\n"; - printer_->Print(m, file_descriptor_template); -} - -void Generator::AddExtensionToFileDescriptor( - const FieldDescriptor& descriptor) const { - map<string, string> m; - m["descriptor_name"] = kDescriptorKey; - m["field_name"] = descriptor.name(); - const char file_descriptor_template[] = - "$descriptor_name$.extensions_by_name['$field_name$'] = " - "$field_name$\n"; - printer_->Print(m, file_descriptor_template); -} - -// Sets any necessary message_type and enum_type attributes -// for the Python version of |field|. -// -// containing_type may be NULL, in which case this is a module-level field. -// -// python_dict_name is the name of the Python dict where we should -// look the field up in the containing type. (e.g., fields_by_name -// or extensions_by_name). We ignore python_dict_name if containing_type -// is NULL. -void Generator::FixForeignFieldsInField(const Descriptor* containing_type, - const FieldDescriptor& field, - const string& python_dict_name) const { - const string field_referencing_expression = FieldReferencingExpression( - containing_type, field, python_dict_name); - map<string, string> m; - m["field_ref"] = field_referencing_expression; - const Descriptor* foreign_message_type = field.message_type(); - if (foreign_message_type) { - m["foreign_type"] = ModuleLevelDescriptorName(*foreign_message_type); - printer_->Print(m, "$field_ref$.message_type = $foreign_type$\n"); - } - const EnumDescriptor* enum_type = field.enum_type(); - if (enum_type) { - m["enum_type"] = ModuleLevelDescriptorName(*enum_type); - printer_->Print(m, "$field_ref$.enum_type = $enum_type$\n"); - } -} - -// Returns the module-level expression for the given FieldDescriptor. -// Only works for fields in the .proto file this Generator is generating for. -// -// containing_type may be NULL, in which case this is a module-level field. -// -// python_dict_name is the name of the Python dict where we should -// look the field up in the containing type. (e.g., fields_by_name -// or extensions_by_name). We ignore python_dict_name if containing_type -// is NULL. -string Generator::FieldReferencingExpression( - const Descriptor* containing_type, - const FieldDescriptor& field, - const string& python_dict_name) const { - // We should only ever be looking up fields in the current file. - // The only things we refer to from other files are message descriptors. - GOOGLE_CHECK_EQ(field.file(), file_) << field.file()->name() << " vs. " - << file_->name(); - if (!containing_type) { - return field.name(); - } - return strings::Substitute( - "$0.$1['$2']", - ModuleLevelDescriptorName(*containing_type), - python_dict_name, field.name()); -} - -// Prints containing_type for nested descriptors or enum descriptors. -template <typename DescriptorT> -void Generator::FixContainingTypeInDescriptor( - const DescriptorT& descriptor, - const Descriptor* containing_descriptor) const { - if (containing_descriptor != NULL) { - const string nested_name = ModuleLevelDescriptorName(descriptor); - const string parent_name = ModuleLevelDescriptorName( - *containing_descriptor); - printer_->Print( - "$nested_name$.containing_type = $parent_name$\n", - "nested_name", nested_name, - "parent_name", parent_name); - } -} - -// Prints statements setting the message_type and enum_type fields in the -// Python descriptor objects we've already output in ths file. We must -// do this in a separate step due to circular references (otherwise, we'd -// just set everything in the initial assignment statements). -void Generator::FixForeignFieldsInDescriptors() const { - for (int i = 0; i < file_->message_type_count(); ++i) { - FixForeignFieldsInDescriptor(*file_->message_type(i), NULL); - } - for (int i = 0; i < file_->message_type_count(); ++i) { - AddMessageToFileDescriptor(*file_->message_type(i)); - } - for (int i = 0; i < file_->enum_type_count(); ++i) { - AddEnumToFileDescriptor(*file_->enum_type(i)); - } - for (int i = 0; i < file_->extension_count(); ++i) { - AddExtensionToFileDescriptor(*file_->extension(i)); - } - printer_->Print("\n"); -} - -// We need to not only set any necessary message_type fields, but -// also need to call RegisterExtension() on each message we're -// extending. -void Generator::FixForeignFieldsInExtensions() const { - // Top-level extensions. - for (int i = 0; i < file_->extension_count(); ++i) { - FixForeignFieldsInExtension(*file_->extension(i)); - } - // Nested extensions. - for (int i = 0; i < file_->message_type_count(); ++i) { - FixForeignFieldsInNestedExtensions(*file_->message_type(i)); - } - printer_->Print("\n"); -} - -void Generator::FixForeignFieldsInExtension( - const FieldDescriptor& extension_field) const { - GOOGLE_CHECK(extension_field.is_extension()); - // extension_scope() will be NULL for top-level extensions, which is - // exactly what FixForeignFieldsInField() wants. - FixForeignFieldsInField(extension_field.extension_scope(), extension_field, - "extensions_by_name"); - - map<string, string> m; - // Confusingly, for FieldDescriptors that happen to be extensions, - // containing_type() means "extended type." - // On the other hand, extension_scope() will give us what we normally - // mean by containing_type(). - m["extended_message_class"] = ModuleLevelMessageName( - *extension_field.containing_type()); - m["field"] = FieldReferencingExpression(extension_field.extension_scope(), - extension_field, - "extensions_by_name"); - printer_->Print(m, "$extended_message_class$.RegisterExtension($field$)\n"); -} - -void Generator::FixForeignFieldsInNestedExtensions( - const Descriptor& descriptor) const { - // Recursively fix up extensions in all nested types. - for (int i = 0; i < descriptor.nested_type_count(); ++i) { - FixForeignFieldsInNestedExtensions(*descriptor.nested_type(i)); - } - // Fix up extensions directly contained within this type. - for (int i = 0; i < descriptor.extension_count(); ++i) { - FixForeignFieldsInExtension(*descriptor.extension(i)); - } -} - -// Returns a Python expression that instantiates a Python EnumValueDescriptor -// object for the given C++ descriptor. -void Generator::PrintEnumValueDescriptor( - const EnumValueDescriptor& descriptor) const { - // TODO(robinson): Fix up EnumValueDescriptor "type" fields. - // More circular references. ::sigh:: - string options_string; - descriptor.options().SerializeToString(&options_string); - map<string, string> m; - m["name"] = descriptor.name(); - m["index"] = SimpleItoa(descriptor.index()); - m["number"] = SimpleItoa(descriptor.number()); - m["options"] = OptionsValue("EnumValueOptions", options_string); - printer_->Print( - m, - "_descriptor.EnumValueDescriptor(\n" - " name='$name$', index=$index$, number=$number$,\n" - " options=$options$,\n" - " type=None)"); -} - -// Returns a Python expression that calls descriptor._ParseOptions using -// the given descriptor class name and serialized options protobuf string. -string Generator::OptionsValue( - const string& class_name, const string& serialized_options) const { - if (serialized_options.length() == 0 || GeneratingDescriptorProto()) { - return "None"; - } else { - string full_class_name = "descriptor_pb2." + class_name; -//##!PY25 return "_descriptor._ParseOptions(" + full_class_name + "(), b'" -//##!PY25 + CEscape(serialized_options)+ "')"; - return "_descriptor._ParseOptions(" + full_class_name + "(), _b('" //##PY25 - + CEscape(serialized_options)+ "'))"; //##PY25 - } -} - -// Prints an expression for a Python FieldDescriptor for |field|. -void Generator::PrintFieldDescriptor( - const FieldDescriptor& field, bool is_extension) const { - string options_string; - field.options().SerializeToString(&options_string); - map<string, string> m; - m["name"] = field.name(); - m["full_name"] = field.full_name(); - m["index"] = SimpleItoa(field.index()); - m["number"] = SimpleItoa(field.number()); - m["type"] = SimpleItoa(field.type()); - m["cpp_type"] = SimpleItoa(field.cpp_type()); - m["label"] = SimpleItoa(field.label()); - m["has_default_value"] = field.has_default_value() ? "True" : "False"; - m["default_value"] = StringifyDefaultValue(field); - m["is_extension"] = is_extension ? "True" : "False"; - m["options"] = OptionsValue("FieldOptions", options_string); - // We always set message_type and enum_type to None at this point, and then - // these fields in correctly after all referenced descriptors have been - // defined and/or imported (see FixForeignFieldsInDescriptors()). - const char field_descriptor_decl[] = - "_descriptor.FieldDescriptor(\n" - " name='$name$', full_name='$full_name$', index=$index$,\n" - " number=$number$, type=$type$, cpp_type=$cpp_type$, label=$label$,\n" - " has_default_value=$has_default_value$, default_value=$default_value$,\n" - " message_type=None, enum_type=None, containing_type=None,\n" - " is_extension=$is_extension$, extension_scope=None,\n" - " options=$options$)"; - printer_->Print(m, field_descriptor_decl); -} - -// Helper for Print{Fields,Extensions}InDescriptor(). -void Generator::PrintFieldDescriptorsInDescriptor( - const Descriptor& message_descriptor, - bool is_extension, - const string& list_variable_name, - int (Descriptor::*CountFn)() const, - const FieldDescriptor* (Descriptor::*GetterFn)(int) const) const { - printer_->Print("$list$=[\n", "list", list_variable_name); - printer_->Indent(); - for (int i = 0; i < (message_descriptor.*CountFn)(); ++i) { - PrintFieldDescriptor(*(message_descriptor.*GetterFn)(i), - is_extension); - printer_->Print(",\n"); - } - printer_->Outdent(); - printer_->Print("],\n"); -} - -// Prints a statement assigning "fields" to a list of Python FieldDescriptors, -// one for each field present in message_descriptor. -void Generator::PrintFieldsInDescriptor( - const Descriptor& message_descriptor) const { - const bool is_extension = false; - PrintFieldDescriptorsInDescriptor( - message_descriptor, is_extension, "fields", - &Descriptor::field_count, &Descriptor::field); -} - -// Prints a statement assigning "extensions" to a list of Python -// FieldDescriptors, one for each extension present in message_descriptor. -void Generator::PrintExtensionsInDescriptor( - const Descriptor& message_descriptor) const { - const bool is_extension = true; - PrintFieldDescriptorsInDescriptor( - message_descriptor, is_extension, "extensions", - &Descriptor::extension_count, &Descriptor::extension); -} - -bool Generator::GeneratingDescriptorProto() const { - return file_->name() == "google/protobuf/descriptor.proto"; -} - -// Returns the unique Python module-level identifier given to a descriptor. -// This name is module-qualified iff the given descriptor describes an -// entity that doesn't come from the current file. -template <typename DescriptorT> -string Generator::ModuleLevelDescriptorName( - const DescriptorT& descriptor) const { - // FIXME(robinson): - // We currently don't worry about collisions with underscores in the type - // names, so these would collide in nasty ways if found in the same file: - // OuterProto.ProtoA.ProtoB - // OuterProto_ProtoA.ProtoB # Underscore instead of period. - // As would these: - // OuterProto.ProtoA_.ProtoB - // OuterProto.ProtoA._ProtoB # Leading vs. trailing underscore. - // (Contrived, but certainly possible). - // - // The C++ implementation doesn't guard against this either. Leaving - // it for now... - string name = NamePrefixedWithNestedTypes(descriptor, "_"); - UpperString(&name); - // Module-private for now. Easy to make public later; almost impossible - // to make private later. - name = "_" + name; - // We now have the name relative to its own module. Also qualify with - // the module name iff this descriptor is from a different .proto file. - if (descriptor.file() != file_) { - name = ModuleAlias(descriptor.file()->name()) + "." + name; - } - return name; -} - -// Returns the name of the message class itself, not the descriptor. -// Like ModuleLevelDescriptorName(), module-qualifies the name iff -// the given descriptor describes an entity that doesn't come from -// the current file. -string Generator::ModuleLevelMessageName(const Descriptor& descriptor) const { - string name = NamePrefixedWithNestedTypes(descriptor, "."); - if (descriptor.file() != file_) { - name = ModuleAlias(descriptor.file()->name()) + "." + name; - } - return name; -} - -// Returns the unique Python module-level identifier given to a service -// descriptor. -string Generator::ModuleLevelServiceDescriptorName( - const ServiceDescriptor& descriptor) const { - string name = descriptor.name(); - UpperString(&name); - name = "_" + name; - if (descriptor.file() != file_) { - name = ModuleAlias(descriptor.file()->name()) + "." + name; - } - return name; -} - -// Prints standard constructor arguments serialized_start and serialized_end. -// Args: -// descriptor: The cpp descriptor to have a serialized reference. -// proto: A proto -// Example printer output: -// serialized_start=41, -// serialized_end=43, -// -template <typename DescriptorT, typename DescriptorProtoT> -void Generator::PrintSerializedPbInterval( - const DescriptorT& descriptor, DescriptorProtoT& proto) const { - descriptor.CopyTo(&proto); - string sp; - proto.SerializeToString(&sp); - int offset = file_descriptor_serialized_.find(sp); - GOOGLE_CHECK_GE(offset, 0); - - printer_->Print("serialized_start=$serialized_start$,\n" - "serialized_end=$serialized_end$,\n", - "serialized_start", SimpleItoa(offset), - "serialized_end", SimpleItoa(offset + sp.size())); -} - -namespace { -void PrintDescriptorOptionsFixingCode(const string& descriptor, - const string& options, - io::Printer* printer) { - // TODO(xiaofeng): I have added a method _SetOptions() to DescriptorBase - // in proto2 python runtime but it couldn't be used here because appengine - // uses a snapshot version of the library in which the new method is not - // yet present. After appengine has synced their runtime library, the code - // below should be cleaned up to use _SetOptions(). - printer->Print( - "$descriptor$.has_options = True\n" - "$descriptor$._options = $options$\n", - "descriptor", descriptor, "options", options); -} -} // namespace - -// Prints expressions that set the options field of all descriptors. -void Generator::FixAllDescriptorOptions() const { - // Prints an expression that sets the file descriptor's options. - string file_options = OptionsValue( - "FileOptions", file_->options().SerializeAsString()); - if (file_options != "None") { - PrintDescriptorOptionsFixingCode(kDescriptorKey, file_options, printer_); - } - // Prints expressions that set the options for all top level enums. - for (int i = 0; i < file_->enum_type_count(); ++i) { - const EnumDescriptor& enum_descriptor = *file_->enum_type(i); - FixOptionsForEnum(enum_descriptor); - } - // Prints expressions that set the options for all top level extensions. - for (int i = 0; i < file_->extension_count(); ++i) { - const FieldDescriptor& field = *file_->extension(i); - FixOptionsForField(field); - } - // Prints expressions that set the options for all messages, nested enums, - // nested extensions and message fields. - for (int i = 0; i < file_->message_type_count(); ++i) { - FixOptionsForMessage(*file_->message_type(i)); - } -} - -// Prints expressions that set the options for an enum descriptor and its -// value descriptors. -void Generator::FixOptionsForEnum(const EnumDescriptor& enum_descriptor) const { - string descriptor_name = ModuleLevelDescriptorName(enum_descriptor); - string enum_options = OptionsValue( - "EnumOptions", enum_descriptor.options().SerializeAsString()); - if (enum_options != "None") { - PrintDescriptorOptionsFixingCode(descriptor_name, enum_options, printer_); - } - for (int i = 0; i < enum_descriptor.value_count(); ++i) { - const EnumValueDescriptor& value_descriptor = *enum_descriptor.value(i); - string value_options = OptionsValue( - "EnumValueOptions", value_descriptor.options().SerializeAsString()); - if (value_options != "None") { - PrintDescriptorOptionsFixingCode( - StringPrintf("%s.values_by_name[\"%s\"]", descriptor_name.c_str(), - value_descriptor.name().c_str()), - value_options, printer_); - } - } -} - -// Prints expressions that set the options for field descriptors (including -// extensions). -void Generator::FixOptionsForField( - const FieldDescriptor& field) const { - string field_options = OptionsValue( - "FieldOptions", field.options().SerializeAsString()); - if (field_options != "None") { - string field_name; - if (field.is_extension()) { - if (field.extension_scope() == NULL) { - // Top level extensions. - field_name = field.name(); - } else { - field_name = FieldReferencingExpression( - field.extension_scope(), field, "extensions_by_name"); - } - } else { - field_name = FieldReferencingExpression( - field.containing_type(), field, "fields_by_name"); - } - PrintDescriptorOptionsFixingCode(field_name, field_options, printer_); - } -} - -// Prints expressions that set the options for a message and all its inner -// types (nested messages, nested enums, extensions, fields). -void Generator::FixOptionsForMessage(const Descriptor& descriptor) const { - // Nested messages. - for (int i = 0; i < descriptor.nested_type_count(); ++i) { - FixOptionsForMessage(*descriptor.nested_type(i)); - } - // Enums. - for (int i = 0; i < descriptor.enum_type_count(); ++i) { - FixOptionsForEnum(*descriptor.enum_type(i)); - } - // Fields. - for (int i = 0; i < descriptor.field_count(); ++i) { - const FieldDescriptor& field = *descriptor.field(i); - FixOptionsForField(field); - } - // Extensions. - for (int i = 0; i < descriptor.extension_count(); ++i) { - const FieldDescriptor& field = *descriptor.extension(i); - FixOptionsForField(field); - } - // Message option for this message. - string message_options = OptionsValue( - "MessageOptions", descriptor.options().SerializeAsString()); - if (message_options != "None") { - string descriptor_name = ModuleLevelDescriptorName(descriptor); - PrintDescriptorOptionsFixingCode(descriptor_name, - message_options, - printer_); - } -} - -// If a dependency forwards other files through public dependencies, let's -// copy over the corresponding module aliases. -void Generator::CopyPublicDependenciesAliases( - const string& copy_from, const FileDescriptor* file) const { - for (int i = 0; i < file->public_dependency_count(); ++i) { - string module_alias = ModuleAlias(file->public_dependency(i)->name()); - printer_->Print("$alias$ = $copy_from$.$alias$\n", "alias", module_alias, - "copy_from", copy_from); - CopyPublicDependenciesAliases(copy_from, file->public_dependency(i)); - } -} - -} // namespace python -} // namespace compiler -} // namespace protobuf -} // namespace google |