javanano_field.cc revision fea3fd5cb6ff88b51da60b1f33004944d93a9fce
164d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// Protocol Buffers - Google's data interchange format 264d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// Copyright 2008 Google Inc. All rights reserved. 364d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// http://code.google.com/p/protobuf/ 464d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// 564d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// Redistribution and use in source and binary forms, with or without 664d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// modification, are permitted provided that the following conditions are 764d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// met: 864d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// 964d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// * Redistributions of source code must retain the above copyright 1064d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// notice, this list of conditions and the following disclaimer. 1164d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// * Redistributions in binary form must reproduce the above 1264d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// copyright notice, this list of conditions and the following disclaimer 1364d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// in the documentation and/or other materials provided with the 1464d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// distribution. 1564d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// * Neither the name of Google Inc. nor the names of its 1664d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// contributors may be used to endorse or promote products derived from 1764d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// this software without specific prior written permission. 1864d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// 1964d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 2064d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 2164d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 2264d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2364d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2464d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2564d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2664d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2764d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2864d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2964d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3064d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci 3164d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// Author: kenton@google.com (Kenton Varda) 3264d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// Based on original Protocol Buffers design by 3364d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci// Sanjay Ghemawat, Jeff Dean, and others. 3464d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci 3564d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci#include <google/protobuf/compiler/javanano/javanano_field.h> 3664d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci#include <google/protobuf/compiler/javanano/javanano_helpers.h> 3764d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci#include <google/protobuf/compiler/javanano/javanano_primitive_field.h> 3864d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci#include <google/protobuf/compiler/javanano/javanano_enum_field.h> 3964d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci#include <google/protobuf/compiler/javanano/javanano_message_field.h> 4064d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci#include <google/protobuf/stubs/common.h> 4164d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci 4264d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazcinamespace google { 4364d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazcinamespace protobuf { 4464d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazcinamespace compiler { 4564d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazcinamespace javanano { 4664d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci 4764d8d8f89050c5ada85341f967af391f4716a7cbUlas KirazciFieldGenerator::~FieldGenerator() {} 4864d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci 49fea3fd5cb6ff88b51da60b1f33004944d93a9fceMax Caivoid FieldGenerator::GenerateMergingCodeFromPacked(io::Printer* printer) const { 50fea3fd5cb6ff88b51da60b1f33004944d93a9fceMax Cai // Reaching here indicates a bug. Cases are: 51fea3fd5cb6ff88b51da60b1f33004944d93a9fceMax Cai // - This FieldGenerator should support packing, but this method should be 52fea3fd5cb6ff88b51da60b1f33004944d93a9fceMax Cai // overridden. 53fea3fd5cb6ff88b51da60b1f33004944d93a9fceMax Cai // - This FieldGenerator doesn't support packing, and this method should 54fea3fd5cb6ff88b51da60b1f33004944d93a9fceMax Cai // never have been called. 55fea3fd5cb6ff88b51da60b1f33004944d93a9fceMax Cai GOOGLE_LOG(FATAL) << "GenerateParsingCodeFromPacked() " 56fea3fd5cb6ff88b51da60b1f33004944d93a9fceMax Cai << "called on field generator that does not support packing."; 57fea3fd5cb6ff88b51da60b1f33004944d93a9fceMax Cai} 58fea3fd5cb6ff88b51da60b1f33004944d93a9fceMax Cai 5964d8d8f89050c5ada85341f967af391f4716a7cbUlas KirazciFieldGeneratorMap::FieldGeneratorMap(const Descriptor* descriptor, const Params ¶ms) 6064d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci : descriptor_(descriptor), 6164d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci field_generators_( 6264d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci new scoped_ptr<FieldGenerator>[descriptor->field_count()]), 6364d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci extension_generators_( 6464d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci new scoped_ptr<FieldGenerator>[descriptor->extension_count()]) { 6564d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci 66e74fe623e115237968a3de1143d7cdb4df710858Max Cai int next_has_bit_index = 0; 6764d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci // Construct all the FieldGenerators. 6864d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci for (int i = 0; i < descriptor->field_count(); i++) { 69e74fe623e115237968a3de1143d7cdb4df710858Max Cai field_generators_[i].reset( 70e74fe623e115237968a3de1143d7cdb4df710858Max Cai MakeGenerator(descriptor->field(i), params, &next_has_bit_index)); 7164d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci } 7264d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci for (int i = 0; i < descriptor->extension_count(); i++) { 73e74fe623e115237968a3de1143d7cdb4df710858Max Cai extension_generators_[i].reset( 74e74fe623e115237968a3de1143d7cdb4df710858Max Cai MakeGenerator(descriptor->extension(i), params, &next_has_bit_index)); 7564d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci } 76e74fe623e115237968a3de1143d7cdb4df710858Max Cai total_bits_ = next_has_bit_index; 7764d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci} 7864d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci 79e74fe623e115237968a3de1143d7cdb4df710858Max CaiFieldGenerator* FieldGeneratorMap::MakeGenerator(const FieldDescriptor* field, 80e74fe623e115237968a3de1143d7cdb4df710858Max Cai const Params ¶ms, int* next_has_bit_index) { 8164d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci if (field->is_repeated()) { 8264d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci switch (GetJavaType(field)) { 8364d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci case JAVATYPE_MESSAGE: 8464d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci return new RepeatedMessageFieldGenerator(field, params); 8564d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci case JAVATYPE_ENUM: 8664d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci return new RepeatedEnumFieldGenerator(field, params); 8764d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci default: 8864d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci return new RepeatedPrimitiveFieldGenerator(field, params); 8964d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci } 90e74fe623e115237968a3de1143d7cdb4df710858Max Cai } else if (params.optional_field_accessors() && field->is_optional()) { 91e74fe623e115237968a3de1143d7cdb4df710858Max Cai // We need a has-bit for each primitive/enum field because their default 92e74fe623e115237968a3de1143d7cdb4df710858Max Cai // values could be same as explicitly set values. But we don't need it 93e74fe623e115237968a3de1143d7cdb4df710858Max Cai // for a message field because they have no defaults and Nano uses 'null' 94e74fe623e115237968a3de1143d7cdb4df710858Max Cai // for unset messages, which cannot be set explicitly. 95e74fe623e115237968a3de1143d7cdb4df710858Max Cai switch (GetJavaType(field)) { 96e74fe623e115237968a3de1143d7cdb4df710858Max Cai case JAVATYPE_MESSAGE: 97e74fe623e115237968a3de1143d7cdb4df710858Max Cai return new AccessorMessageFieldGenerator(field, params); 98e74fe623e115237968a3de1143d7cdb4df710858Max Cai case JAVATYPE_ENUM: 99e74fe623e115237968a3de1143d7cdb4df710858Max Cai return new AccessorEnumFieldGenerator( 100e74fe623e115237968a3de1143d7cdb4df710858Max Cai field, params, (*next_has_bit_index)++); 101e74fe623e115237968a3de1143d7cdb4df710858Max Cai default: 102e74fe623e115237968a3de1143d7cdb4df710858Max Cai return new AccessorPrimitiveFieldGenerator( 103e74fe623e115237968a3de1143d7cdb4df710858Max Cai field, params, (*next_has_bit_index)++); 104e74fe623e115237968a3de1143d7cdb4df710858Max Cai } 10564d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci } else { 10664d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci switch (GetJavaType(field)) { 10764d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci case JAVATYPE_MESSAGE: 10864d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci return new MessageFieldGenerator(field, params); 10964d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci case JAVATYPE_ENUM: 11064d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci return new EnumFieldGenerator(field, params); 11164d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci default: 11264d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci return new PrimitiveFieldGenerator(field, params); 11364d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci } 11464d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci } 11564d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci} 11664d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci 11764d8d8f89050c5ada85341f967af391f4716a7cbUlas KirazciFieldGeneratorMap::~FieldGeneratorMap() {} 11864d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci 11964d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazciconst FieldGenerator& FieldGeneratorMap::get( 12064d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci const FieldDescriptor* field) const { 12164d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci GOOGLE_CHECK_EQ(field->containing_type(), descriptor_); 12264d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci return *field_generators_[field->index()]; 12364d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci} 12464d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci 12564d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazciconst FieldGenerator& FieldGeneratorMap::get_extension(int index) const { 12664d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci return *extension_generators_[index]; 12764d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci} 12864d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci 12964d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci} // namespace javanano 13064d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci} // namespace compiler 13164d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci} // namespace protobuf 13264d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci} // namespace google 133