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Diffstat (limited to 'src/google/protobuf/compiler/cpp/cpp_field.cc')
-rw-r--r-- | src/google/protobuf/compiler/cpp/cpp_field.cc | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/google/protobuf/compiler/cpp/cpp_field.cc b/src/google/protobuf/compiler/cpp/cpp_field.cc new file mode 100644 index 00000000..2b1041be --- /dev/null +++ b/src/google/protobuf/compiler/cpp/cpp_field.cc @@ -0,0 +1,83 @@ +// Protocol Buffers - Google's data interchange format +// Copyright 2008 Google Inc. +// http://code.google.com/p/protobuf/ +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// Author: kenton@google.com (Kenton Varda) +// Based on original Protocol Buffers design by +// Sanjay Ghemawat, Jeff Dean, and others. + +#include <google/protobuf/compiler/cpp/cpp_field.h> +#include <google/protobuf/compiler/cpp/cpp_primitive_field.h> +#include <google/protobuf/compiler/cpp/cpp_string_field.h> +#include <google/protobuf/compiler/cpp/cpp_enum_field.h> +#include <google/protobuf/compiler/cpp/cpp_message_field.h> +#include <google/protobuf/descriptor.pb.h> +#include <google/protobuf/stubs/common.h> + +namespace google { +namespace protobuf { +namespace compiler { +namespace cpp { + +FieldGenerator::~FieldGenerator() {} + +FieldGeneratorMap::FieldGeneratorMap(const Descriptor* descriptor) + : descriptor_(descriptor), + field_generators_( + new scoped_ptr<FieldGenerator>[descriptor->field_count()]) { + // Construct all the FieldGenerators. + for (int i = 0; i < descriptor->field_count(); i++) { + field_generators_[i].reset(MakeGenerator(descriptor->field(i))); + } +} + +FieldGenerator* FieldGeneratorMap::MakeGenerator(const FieldDescriptor* field) { + if (field->is_repeated()) { + switch (field->cpp_type()) { + case FieldDescriptor::CPPTYPE_MESSAGE: + return new RepeatedMessageFieldGenerator(field); + case FieldDescriptor::CPPTYPE_STRING: + return new RepeatedStringFieldGenerator(field); + case FieldDescriptor::CPPTYPE_ENUM: + return new RepeatedEnumFieldGenerator(field); + default: + return new RepeatedPrimitiveFieldGenerator(field); + } + } else { + switch (field->cpp_type()) { + case FieldDescriptor::CPPTYPE_MESSAGE: + return new MessageFieldGenerator(field); + case FieldDescriptor::CPPTYPE_STRING: + return new StringFieldGenerator(field); + case FieldDescriptor::CPPTYPE_ENUM: + return new EnumFieldGenerator(field); + default: + return new PrimitiveFieldGenerator(field); + } + } +} + +FieldGeneratorMap::~FieldGeneratorMap() {} + +const FieldGenerator& FieldGeneratorMap::get( + const FieldDescriptor* field) const { + GOOGLE_CHECK_EQ(field->containing_type(), descriptor_); + return *field_generators_[field->index()]; +} + +} // namespace cpp +} // namespace compiler +} // namespace protobuf +} // namespace google |