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 495cc242074f189837b38e7768b57ccfb0bca258dfMax Caibool FieldGenerator::SavedDefaultNeeded() const { 505cc242074f189837b38e7768b57ccfb0bca258dfMax Cai // No saved default for this field by default. 515cc242074f189837b38e7768b57ccfb0bca258dfMax Cai // Subclasses whose instances may need saved defaults will override this 525cc242074f189837b38e7768b57ccfb0bca258dfMax Cai // and return the appropriate value. 535cc242074f189837b38e7768b57ccfb0bca258dfMax Cai return false; 545cc242074f189837b38e7768b57ccfb0bca258dfMax Cai} 555cc242074f189837b38e7768b57ccfb0bca258dfMax Cai 565cc242074f189837b38e7768b57ccfb0bca258dfMax Caivoid FieldGenerator::GenerateInitSavedDefaultCode(io::Printer* printer) const { 575cc242074f189837b38e7768b57ccfb0bca258dfMax Cai // No saved default for this field by default. 585cc242074f189837b38e7768b57ccfb0bca258dfMax Cai // Subclasses whose instances may need saved defaults will override this 595cc242074f189837b38e7768b57ccfb0bca258dfMax Cai // and generate the appropriate init code to the printer. 605cc242074f189837b38e7768b57ccfb0bca258dfMax Cai} 615cc242074f189837b38e7768b57ccfb0bca258dfMax Cai 62fea3fd5cb6ff88b51da60b1f33004944d93a9fceMax Caivoid FieldGenerator::GenerateMergingCodeFromPacked(io::Printer* printer) const { 63fea3fd5cb6ff88b51da60b1f33004944d93a9fceMax Cai // Reaching here indicates a bug. Cases are: 64fea3fd5cb6ff88b51da60b1f33004944d93a9fceMax Cai // - This FieldGenerator should support packing, but this method should be 65fea3fd5cb6ff88b51da60b1f33004944d93a9fceMax Cai // overridden. 66fea3fd5cb6ff88b51da60b1f33004944d93a9fceMax Cai // - This FieldGenerator doesn't support packing, and this method should 67fea3fd5cb6ff88b51da60b1f33004944d93a9fceMax Cai // never have been called. 68fea3fd5cb6ff88b51da60b1f33004944d93a9fceMax Cai GOOGLE_LOG(FATAL) << "GenerateParsingCodeFromPacked() " 69fea3fd5cb6ff88b51da60b1f33004944d93a9fceMax Cai << "called on field generator that does not support packing."; 70fea3fd5cb6ff88b51da60b1f33004944d93a9fceMax Cai} 71fea3fd5cb6ff88b51da60b1f33004944d93a9fceMax Cai 725cc242074f189837b38e7768b57ccfb0bca258dfMax Cai// ============================================= 735cc242074f189837b38e7768b57ccfb0bca258dfMax Cai 745cc242074f189837b38e7768b57ccfb0bca258dfMax CaiFieldGeneratorMap::FieldGeneratorMap( 755cc242074f189837b38e7768b57ccfb0bca258dfMax Cai const Descriptor* descriptor, const Params ¶ms) 7664d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci : descriptor_(descriptor), 7764d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci field_generators_( 785cc242074f189837b38e7768b57ccfb0bca258dfMax Cai new scoped_ptr<FieldGenerator>[descriptor->field_count()]) { 7964d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci 80e74fe623e115237968a3de1143d7cdb4df710858Max Cai int next_has_bit_index = 0; 815cc242074f189837b38e7768b57ccfb0bca258dfMax Cai bool saved_defaults_needed = false; 8264d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci // Construct all the FieldGenerators. 8364d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci for (int i = 0; i < descriptor->field_count(); i++) { 845cc242074f189837b38e7768b57ccfb0bca258dfMax Cai FieldGenerator* field_generator = MakeGenerator( 855cc242074f189837b38e7768b57ccfb0bca258dfMax Cai descriptor->field(i), params, &next_has_bit_index); 865cc242074f189837b38e7768b57ccfb0bca258dfMax Cai saved_defaults_needed = saved_defaults_needed 875cc242074f189837b38e7768b57ccfb0bca258dfMax Cai || field_generator->SavedDefaultNeeded(); 885cc242074f189837b38e7768b57ccfb0bca258dfMax Cai field_generators_[i].reset(field_generator); 8964d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci } 90e74fe623e115237968a3de1143d7cdb4df710858Max Cai total_bits_ = next_has_bit_index; 915cc242074f189837b38e7768b57ccfb0bca258dfMax Cai saved_defaults_needed_ = saved_defaults_needed; 9264d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci} 9364d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci 94e74fe623e115237968a3de1143d7cdb4df710858Max CaiFieldGenerator* FieldGeneratorMap::MakeGenerator(const FieldDescriptor* field, 95e74fe623e115237968a3de1143d7cdb4df710858Max Cai const Params ¶ms, int* next_has_bit_index) { 96102cfe65b9b9e2b458c3d0ec69d47e8fc40dc726Andrew Flynn JavaType java_type = GetJavaType(field); 9764d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci if (field->is_repeated()) { 98102cfe65b9b9e2b458c3d0ec69d47e8fc40dc726Andrew Flynn switch (java_type) { 9964d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci case JAVATYPE_MESSAGE: 10064d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci return new RepeatedMessageFieldGenerator(field, params); 10164d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci case JAVATYPE_ENUM: 10264d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci return new RepeatedEnumFieldGenerator(field, params); 10364d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci default: 10464d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci return new RepeatedPrimitiveFieldGenerator(field, params); 10564d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci } 106102cfe65b9b9e2b458c3d0ec69d47e8fc40dc726Andrew Flynn } else if (params.optional_field_accessors() && field->is_optional() 107102cfe65b9b9e2b458c3d0ec69d47e8fc40dc726Andrew Flynn && java_type != JAVATYPE_MESSAGE) { 108e74fe623e115237968a3de1143d7cdb4df710858Max Cai // We need a has-bit for each primitive/enum field because their default 109e74fe623e115237968a3de1143d7cdb4df710858Max Cai // values could be same as explicitly set values. But we don't need it 110e74fe623e115237968a3de1143d7cdb4df710858Max Cai // for a message field because they have no defaults and Nano uses 'null' 111e74fe623e115237968a3de1143d7cdb4df710858Max Cai // for unset messages, which cannot be set explicitly. 112102cfe65b9b9e2b458c3d0ec69d47e8fc40dc726Andrew Flynn switch (java_type) { 113e74fe623e115237968a3de1143d7cdb4df710858Max Cai case JAVATYPE_ENUM: 114e74fe623e115237968a3de1143d7cdb4df710858Max Cai return new AccessorEnumFieldGenerator( 115e74fe623e115237968a3de1143d7cdb4df710858Max Cai field, params, (*next_has_bit_index)++); 116e74fe623e115237968a3de1143d7cdb4df710858Max Cai default: 117e74fe623e115237968a3de1143d7cdb4df710858Max Cai return new AccessorPrimitiveFieldGenerator( 118e74fe623e115237968a3de1143d7cdb4df710858Max Cai field, params, (*next_has_bit_index)++); 119e74fe623e115237968a3de1143d7cdb4df710858Max Cai } 12064d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci } else { 121102cfe65b9b9e2b458c3d0ec69d47e8fc40dc726Andrew Flynn switch (java_type) { 12264d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci case JAVATYPE_MESSAGE: 12364d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci return new MessageFieldGenerator(field, params); 12464d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci case JAVATYPE_ENUM: 12564d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci return new EnumFieldGenerator(field, params); 12664d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci default: 12764d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci return new PrimitiveFieldGenerator(field, params); 12864d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci } 12964d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci } 13064d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci} 13164d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci 13264d8d8f89050c5ada85341f967af391f4716a7cbUlas KirazciFieldGeneratorMap::~FieldGeneratorMap() {} 13364d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci 13464d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazciconst FieldGenerator& FieldGeneratorMap::get( 13564d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci const FieldDescriptor* field) const { 13664d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci GOOGLE_CHECK_EQ(field->containing_type(), descriptor_); 13764d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci return *field_generators_[field->index()]; 13864d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci} 13964d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci 14064d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci} // namespace javanano 14164d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci} // namespace compiler 14264d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci} // namespace protobuf 14364d8d8f89050c5ada85341f967af391f4716a7cbUlas Kirazci} // namespace google 144