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92 lines
3.9 KiB
C++
92 lines
3.9 KiB
C++
// Protocol Buffers - Google's data interchange format
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// Copyright 2008 Google Inc. All rights reserved.
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// http://code.google.com/p/protobuf/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Author: jasonh@google.com (Jason Hsueh)
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//
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// This header is logically internal, but is made public because it is used
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// from protocol-compiler-generated code, which may reside in other components.
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// It provides reflection support for generated enums, and is included in
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// generated .pb.h files and should have minimal dependencies. The methods are
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// implemented in generated_message_reflection.cc.
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#ifndef GOOGLE_PROTOBUF_GENERATED_ENUM_REFLECTION_H__
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#define GOOGLE_PROTOBUF_GENERATED_ENUM_REFLECTION_H__
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#include <string>
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#include <google/protobuf/stubs/template_util.h>
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namespace google {
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namespace protobuf {
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class EnumDescriptor;
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} // namespace protobuf
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namespace protobuf {
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// This type trait can be used to cause templates to only match proto2 enum
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// types.
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template <typename T> struct is_proto_enum : ::google::protobuf::internal::false_type {};
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// Returns the EnumDescriptor for enum type E, which must be a
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// proto-declared enum type. Code generated by the protocol compiler
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// will include specializations of this template for each enum type declared.
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template <typename E>
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const EnumDescriptor* GetEnumDescriptor();
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namespace internal {
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// Helper for EnumType_Parse functions: try to parse the string 'name' as an
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// enum name of the given type, returning true and filling in value on success,
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// or returning false and leaving value unchanged on failure.
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LIBPROTOBUF_EXPORT bool ParseNamedEnum(const EnumDescriptor* descriptor,
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const string& name,
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int* value);
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template<typename EnumType>
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bool ParseNamedEnum(const EnumDescriptor* descriptor,
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const string& name,
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EnumType* value) {
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int tmp;
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if (!ParseNamedEnum(descriptor, name, &tmp)) return false;
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*value = static_cast<EnumType>(tmp);
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return true;
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}
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// Just a wrapper around printing the name of a value. The main point of this
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// function is not to be inlined, so that you can do this without including
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// descriptor.h.
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LIBPROTOBUF_EXPORT const string& NameOfEnum(const EnumDescriptor* descriptor, int value);
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} // namespace internal
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} // namespace protobuf
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} // namespace google
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#endif // GOOGLE_PROTOBUF_GENERATED_ENUM_REFLECTION_H__
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