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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Author: kenton@google.com (Kenton Varda)
// Based on original Protocol Buffers design by
// Sanjay Ghemawat, Jeff Dean, and others.
#ifndef GOOGLE_PROTOBUF_COMPILER_JAVA_EXTENSION_H__
#define GOOGLE_PROTOBUF_COMPILER_JAVA_EXTENSION_H__
#include <map>
#include <string>
#include <google/protobuf/stubs/common.h>
namespace google {
namespace protobuf {
class FieldDescriptor; // descriptor.h
namespace compiler {
namespace java {
class Context; // context.h
class ClassNameResolver; // name_resolver.h
} // namespace java
} // namespace compiler
namespace io {
class Printer; // printer.h
}
} // namespace protobuf
} // namespace google
namespace google {
namespace protobuf {
namespace compiler {
namespace java {
// Generates code for an extension, which may be within the scope of some
// message or may be at file scope. This is much simpler than FieldGenerator
// since extensions are just simple identifiers with interesting types.
class ExtensionGenerator {
public:
explicit ExtensionGenerator() {}
virtual ~ExtensionGenerator() {}
virtual void Generate(io::Printer* printer) = 0;
// Returns an estimate of the number of bytes the printed code will compile
// to
virtual int GenerateNonNestedInitializationCode(io::Printer* printer) = 0;
// Returns an estimate of the number of bytes the printed code will compile
// to
virtual int GenerateRegistrationCode(io::Printer* printer) = 0;
protected:
static void InitTemplateVars(
const FieldDescriptor* descriptor, const TProtoStringType& scope,
bool immutable, ClassNameResolver* name_resolver,
std::map<TProtoStringType, TProtoStringType>* vars_pointer);
private:
GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ExtensionGenerator);
};
class ImmutableExtensionGenerator : public ExtensionGenerator {
public:
explicit ImmutableExtensionGenerator(const FieldDescriptor* descriptor,
Context* context);
~ImmutableExtensionGenerator() override;
void Generate(io::Printer* printer) override;
int GenerateNonNestedInitializationCode(io::Printer* printer) override;
int GenerateRegistrationCode(io::Printer* printer) override;
protected:
const FieldDescriptor* descriptor_;
ClassNameResolver* name_resolver_;
TProtoStringType scope_;
private:
GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ImmutableExtensionGenerator);
};
} // namespace java
} // namespace compiler
} // namespace protobuf
} // namespace google
#endif // GOOGLE_PROTOBUF_COMPILER_JAVA_EXTENSION_H__
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