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      1 // Protocol Buffers - Google's data interchange format
      2 // Copyright 2008 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_enum.h>
     43 #include <google/protobuf/compiler/csharp/csharp_helpers.h>
     44 #include <google/protobuf/compiler/csharp/csharp_options.h>
     45 
     46 using google::protobuf::internal::scoped_ptr;
     47 
     48 namespace google {
     49 namespace protobuf {
     50 namespace compiler {
     51 namespace csharp {
     52 
     53 EnumGenerator::EnumGenerator(const EnumDescriptor* descriptor, const Options* options) :
     54     SourceGeneratorBase(descriptor->file(), options),
     55     descriptor_(descriptor) {
     56 }
     57 
     58 EnumGenerator::~EnumGenerator() {
     59 }
     60 
     61 void EnumGenerator::Generate(io::Printer* printer) {
     62   WriteEnumDocComment(printer, descriptor_);
     63   WriteGeneratedCodeAttributes(printer);
     64   printer->Print("$access_level$ enum $name$ {\n",
     65                  "access_level", class_access_level(),
     66                  "name", descriptor_->name());
     67   printer->Indent();
     68   std::set<string> used_names;
     69   for (int i = 0; i < descriptor_->value_count(); i++) {
     70       WriteEnumValueDocComment(printer, descriptor_->value(i));
     71       string original_name = descriptor_->value(i)->name();
     72       string name = options()->legacy_enum_values
     73           ? descriptor_->value(i)->name()
     74           : GetEnumValueName(descriptor_->name(), descriptor_->value(i)->name());
     75       // Make sure we don't get any duplicate names due to prefix removal.
     76       while (!used_names.insert(name).second) {
     77         // It's possible we'll end up giving this warning multiple times, but that's better than not at all.
     78         GOOGLE_LOG(WARNING) << "Duplicate enum value " << name << " (originally " << original_name
     79           << ") in " << descriptor_->name() << "; adding underscore to distinguish";
     80         name += "_";
     81       }
     82       printer->Print("[pbr::OriginalName(\"$original_name$\")] $name$ = $number$,\n",
     83          "original_name", original_name,
     84          "name", name,
     85          "number", SimpleItoa(descriptor_->value(i)->number()));
     86   }
     87   printer->Outdent();
     88   printer->Print("}\n");
     89   printer->Print("\n");
     90 }
     91 
     92 }  // namespace csharp
     93 }  // namespace compiler
     94 }  // namespace protobuf
     95 }  // namespace google
     96