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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 #ifndef GOOGLE_PROTOBUF_COMPILER_JAVA_EXTENSION_LITE_H__
     32 #define GOOGLE_PROTOBUF_COMPILER_JAVA_EXTENSION_LITE_H__
     33 
     34 #include <map>
     35 #include <string>
     36 
     37 #include <google/protobuf/stubs/common.h>
     38 #include <google/protobuf/compiler/java/java_extension.h>
     39 
     40 namespace google {
     41 namespace protobuf {
     42 namespace compiler {
     43 namespace java {
     44 
     45 // Generates code for a lite extension, which may be within the scope of some
     46 // message or may be at file scope.  This is much simpler than FieldGenerator
     47 // since extensions are just simple identifiers with interesting types.
     48 class ImmutableExtensionLiteGenerator : public ExtensionGenerator {
     49  public:
     50   explicit ImmutableExtensionLiteGenerator(const FieldDescriptor* descriptor,
     51                                            Context* context);
     52   virtual ~ImmutableExtensionLiteGenerator();
     53 
     54   virtual void Generate(io::Printer* printer);
     55 
     56   // Returns an estimate of the number of bytes the printed code will compile to
     57   virtual int GenerateNonNestedInitializationCode(io::Printer* printer);
     58 
     59   // Returns an estimate of the number of bytes the printed code will compile to
     60   virtual int GenerateRegistrationCode(io::Printer* printer);
     61 
     62  private:
     63   const FieldDescriptor* descriptor_;
     64   Context* context_;
     65   ClassNameResolver* name_resolver_;
     66   string scope_;
     67 
     68   GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ImmutableExtensionLiteGenerator);
     69 };
     70 
     71 }  // namespace java
     72 }  // namespace compiler
     73 }  // namespace protobuf
     74 
     75 }  // namespace google
     76 #endif  // GOOGLE_PROTOBUF_COMPILER_JAVA_EXTENSION_LITE_H__
     77