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114 lines
4.5 KiB
C++
114 lines
4.5 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: kenton@google.com (Kenton Varda)
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// Based on original Protocol Buffers design by
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// Sanjay Ghemawat, Jeff Dean, and others.
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//
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// This file contains miscellaneous helper code used by generated code --
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// including lite types -- but which should not be used directly by users.
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#ifndef GOOGLE_PROTOBUF_GENERATED_MESSAGE_UTIL_H__
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#define GOOGLE_PROTOBUF_GENERATED_MESSAGE_UTIL_H__
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#include <assert.h>
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#include <string>
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#include <google/protobuf/stubs/once.h>
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#include <google/protobuf/stubs/common.h>
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namespace google {
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namespace protobuf {
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namespace internal {
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// Annotation for the compiler to emit a deprecation message if a field marked
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// with option 'deprecated=true' is used in the code, or for other things in
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// generated code which are deprecated.
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//
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// For internal use in the pb.cc files, deprecation warnings are suppressed
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// there.
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#undef DEPRECATED_PROTOBUF_FIELD
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#define PROTOBUF_DEPRECATED
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// Constants for special floating point values.
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LIBPROTOBUF_EXPORT double Infinity();
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LIBPROTOBUF_EXPORT double NaN();
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// TODO(jieluo): Change to template. We have tried to use template,
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// but it causes net/rpc/python:rpcutil_test fail (the empty string will
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// init twice). It may related to swig. Change to template after we
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// found the solution.
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// Default empty string object. Don't use the pointer directly. Instead, call
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// GetEmptyString() to get the reference.
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LIBPROTOBUF_EXPORT extern const ::std::string* empty_string_;
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LIBPROTOBUF_EXPORT extern ProtobufOnceType empty_string_once_init_;
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LIBPROTOBUF_EXPORT void InitEmptyString();
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LIBPROTOBUF_EXPORT inline const ::std::string& GetEmptyStringAlreadyInited() {
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assert(empty_string_ != NULL);
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return *empty_string_;
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}
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LIBPROTOBUF_EXPORT inline const ::std::string& GetEmptyString() {
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::google::protobuf::GoogleOnceInit(&empty_string_once_init_, &InitEmptyString);
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return GetEmptyStringAlreadyInited();
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}
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// Defined in generated_message_reflection.cc -- not actually part of the lite
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// library.
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//
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// TODO(jasonh): The various callers get this declaration from a variety of
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// places: probably in most cases repeated_field.h. Clean these up so they all
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// get the declaration from this file.
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LIBPROTOBUF_EXPORT int StringSpaceUsedExcludingSelf(const string& str);
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// True if IsInitialized() is true for all elements of t. Type is expected
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// to be a RepeatedPtrField<some message type>. It's useful to have this
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// helper here to keep the protobuf compiler from ever having to emit loops in
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// IsInitialized() methods. We want the C++ compiler to inline this or not
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// as it sees fit.
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template <class Type> bool AllAreInitialized(const Type& t) {
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for (int i = t.size(); --i >= 0; ) {
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if (!t.Get(i).IsInitialized()) return false;
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}
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return true;
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}
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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_MESSAGE_UTIL_H__
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