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      1 // Protocol Buffers - Google's data interchange format
      2 // Copyright 2015 Google Inc.  All rights reserved.
      3 // https://developers.google.com/protocol-buffers/
      4 //
      5 // Redistribution and use in source and binary forms, with or without
      6 // modification, are permitted provided that the following conditions are
      7 // met:
      8 //
      9 //     * Redistributions of source code must retain the above copyright
     10 // notice, this list of conditions and the following disclaimer.
     11 //     * Redistributions in binary form must reproduce the above
     12 // copyright notice, this list of conditions and the following disclaimer
     13 // in the documentation and/or other materials provided with the
     14 // distribution.
     15 //     * Neither the name of Google Inc. nor the names of its
     16 // contributors may be used to endorse or promote products derived from
     17 // this software without specific prior written permission.
     18 //
     19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     24 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     29 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30 
     31 #include <sstream>
     32 
     33 #include <google/protobuf/compiler/code_generator.h>
     34 #include <google/protobuf/compiler/plugin.h>
     35 #include <google/protobuf/descriptor.h>
     36 #include <google/protobuf/descriptor.pb.h>
     37 #include <google/protobuf/io/printer.h>
     38 #include <google/protobuf/io/zero_copy_stream.h>
     39 #include <google/protobuf/stubs/strutil.h>
     40 
     41 #include <google/protobuf/compiler/csharp/csharp_doc_comment.h>
     42 #include <google/protobuf/compiler/csharp/csharp_helpers.h>
     43 #include <google/protobuf/compiler/csharp/csharp_map_field.h>
     44 
     45 namespace google {
     46 namespace protobuf {
     47 namespace compiler {
     48 namespace csharp {
     49 
     50 MapFieldGenerator::MapFieldGenerator(const FieldDescriptor* descriptor,
     51                                      int fieldOrdinal,
     52                                      const Options* options)
     53     : FieldGeneratorBase(descriptor, fieldOrdinal, options) {
     54 }
     55 
     56 MapFieldGenerator::~MapFieldGenerator() {
     57 }
     58 
     59 void MapFieldGenerator::GenerateMembers(io::Printer* printer) {
     60   const FieldDescriptor* key_descriptor =
     61       descriptor_->message_type()->FindFieldByName("key");
     62   const FieldDescriptor* value_descriptor =
     63       descriptor_->message_type()->FindFieldByName("value");
     64   variables_["key_type_name"] = type_name(key_descriptor);
     65   variables_["value_type_name"] = type_name(value_descriptor);
     66   scoped_ptr<FieldGeneratorBase> key_generator(
     67       CreateFieldGenerator(key_descriptor, 1, this->options()));
     68   scoped_ptr<FieldGeneratorBase> value_generator(
     69       CreateFieldGenerator(value_descriptor, 2, this->options()));
     70 
     71   printer->Print(
     72     variables_,
     73     "private static readonly pbc::MapField<$key_type_name$, $value_type_name$>.Codec _map_$name$_codec\n"
     74     "    = new pbc::MapField<$key_type_name$, $value_type_name$>.Codec(");
     75   key_generator->GenerateCodecCode(printer);
     76   printer->Print(", ");
     77   value_generator->GenerateCodecCode(printer);
     78   printer->Print(
     79     variables_,
     80     ", $tag$);\n"
     81     "private readonly pbc::MapField<$key_type_name$, $value_type_name$> $name$_ = new pbc::MapField<$key_type_name$, $value_type_name$>();\n");
     82   WritePropertyDocComment(printer, descriptor_);
     83   AddDeprecatedFlag(printer);
     84   printer->Print(
     85     variables_,
     86     "$access_level$ pbc::MapField<$key_type_name$, $value_type_name$> $property_name$ {\n"
     87     "  get { return $name$_; }\n"
     88     "}\n");
     89 }
     90 
     91 void MapFieldGenerator::GenerateMergingCode(io::Printer* printer) {
     92   printer->Print(
     93       variables_,
     94       "$name$_.Add(other.$name$_);\n");
     95 }
     96 
     97 void MapFieldGenerator::GenerateParsingCode(io::Printer* printer) {
     98   printer->Print(
     99     variables_,
    100     "$name$_.AddEntriesFrom(input, _map_$name$_codec);\n");
    101 }
    102 
    103 void MapFieldGenerator::GenerateSerializationCode(io::Printer* printer) {
    104   printer->Print(
    105     variables_,
    106     "$name$_.WriteTo(output, _map_$name$_codec);\n");
    107 }
    108 
    109 void MapFieldGenerator::GenerateSerializedSizeCode(io::Printer* printer) {
    110   printer->Print(
    111     variables_,
    112     "size += $name$_.CalculateSize(_map_$name$_codec);\n");
    113 }
    114 
    115 void MapFieldGenerator::WriteHash(io::Printer* printer) {
    116   printer->Print(
    117     variables_,
    118     "hash ^= $property_name$.GetHashCode();\n");
    119 }
    120 void MapFieldGenerator::WriteEquals(io::Printer* printer) {
    121   printer->Print(
    122     variables_,
    123     "if (!$property_name$.Equals(other.$property_name$)) return false;\n");
    124 }
    125 
    126 void MapFieldGenerator::WriteToString(io::Printer* printer) {
    127     // TODO: If we ever actually use ToString, we'll need to impleme this...
    128 }
    129 
    130 void MapFieldGenerator::GenerateCloningCode(io::Printer* printer) {
    131   printer->Print(variables_,
    132     "$name$_ = other.$name$_.Clone();\n");
    133 }
    134 
    135 void MapFieldGenerator::GenerateFreezingCode(io::Printer* printer) {
    136 }
    137 
    138 }  // namespace csharp
    139 }  // namespace compiler
    140 }  // namespace protobuf
    141 }  // namespace google
    142