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author | Jeff Davidson <jpd@google.com> | 2014-09-15 16:29:06 -0700 |
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committer | Jeff Davidson <jpd@google.com> | 2015-01-15 14:10:53 -0800 |
commit | a3b2a6da25a76f17c73d31def3952feb0fd2296e (patch) | |
tree | 586f7d5e9a7e05af45d0e821188097c0faa96219 /src/google/protobuf/stubs/template_util.h | |
parent | c7c25812eb19d080087b71e08bfe35aff9f21433 (diff) | |
download | external_protobuf-a3b2a6da25a76f17c73d31def3952feb0fd2296e.zip external_protobuf-a3b2a6da25a76f17c73d31def3952feb0fd2296e.tar.gz external_protobuf-a3b2a6da25a76f17c73d31def3952feb0fd2296e.tar.bz2 |
Update protobuf library from 2.3 to 2.6.
Copied in all files from the open source protobuf project at commit
edc5994525c79cd1919859a370837a6ff7c8e308, removing files which have
been renamed (COPYING.txt -> LICENSE, README.txt -> README.md).
Removed 2.3 prebuilts, which is an approach that will not work due to
incompatibility with the 2.6 runtime.
Merged in micro/nano-specific changes in the following files:
-Android.mk - updated list of C++/Java sources, bumped versions
-java/README.txt - merged in micro/nano instructions, bumped versions
-java/pom.xml - merged in micro/nano build rules, set packaging to jar
-src/Makefile.am - merged in references to micro/nano generators
-src/google/protobuf/compiler/javamicro/javamicro_file.h - imported
google/protobuf/compiler/code_generator.h and removed redundant
OutputDirectory class.
-src/google/protobuf/compiler/javanano/javanano_file.h - same
-Replaced instances of vector with std::vector as needed to get
libprotobuf-cpp-full to compile. Plan to upstream this fix per
discussion with protobuf maintainers.
Reran autogen.sh to update ./configure and associated scripts.
Change-Id: I949d32fb5126f1c05e2a6ed48f6636a4a9b15a48
Diffstat (limited to 'src/google/protobuf/stubs/template_util.h')
-rw-r--r-- | src/google/protobuf/stubs/template_util.h | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/src/google/protobuf/stubs/template_util.h b/src/google/protobuf/stubs/template_util.h new file mode 100644 index 0000000..4f30ffa --- /dev/null +++ b/src/google/protobuf/stubs/template_util.h @@ -0,0 +1,138 @@ +// Copyright 2005 Google Inc. +// All rights reserved. +// +// 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: lar@google.com (Laramie Leavitt) +// +// Template metaprogramming utility functions. +// +// This code is compiled directly on many platforms, including client +// platforms like Windows, Mac, and embedded systems. Before making +// any changes here, make sure that you're not breaking any platforms. +// +// +// The names choosen here reflect those used in tr1 and the boost::mpl +// library, there are similar operations used in the Loki library as +// well. I prefer the boost names for 2 reasons: +// 1. I think that portions of the Boost libraries are more likely to +// be included in the c++ standard. +// 2. It is not impossible that some of the boost libraries will be +// included in our own build in the future. +// Both of these outcomes means that we may be able to directly replace +// some of these with boost equivalents. +// +#ifndef GOOGLE_PROTOBUF_TEMPLATE_UTIL_H_ +#define GOOGLE_PROTOBUF_TEMPLATE_UTIL_H_ + +namespace google { +namespace protobuf { +namespace internal { + +// Types small_ and big_ are guaranteed such that sizeof(small_) < +// sizeof(big_) +typedef char small_; + +struct big_ { + char dummy[2]; +}; + +// Identity metafunction. +template <class T> +struct identity_ { + typedef T type; +}; + +// integral_constant, defined in tr1, is a wrapper for an integer +// value. We don't really need this generality; we could get away +// with hardcoding the integer type to bool. We use the fully +// general integer_constant for compatibility with tr1. + +template<class T, T v> +struct integral_constant { + static const T value = v; + typedef T value_type; + typedef integral_constant<T, v> type; +}; + +template <class T, T v> const T integral_constant<T, v>::value; + + +// Abbreviations: true_type and false_type are structs that represent boolean +// true and false values. Also define the boost::mpl versions of those names, +// true_ and false_. +typedef integral_constant<bool, true> true_type; +typedef integral_constant<bool, false> false_type; +typedef true_type true_; +typedef false_type false_; + +// if_ is a templatized conditional statement. +// if_<cond, A, B> is a compile time evaluation of cond. +// if_<>::type contains A if cond is true, B otherwise. +template<bool cond, typename A, typename B> +struct if_{ + typedef A type; +}; + +template<typename A, typename B> +struct if_<false, A, B> { + typedef B type; +}; + + +// type_equals_ is a template type comparator, similar to Loki IsSameType. +// type_equals_<A, B>::value is true iff "A" is the same type as "B". +// +// New code should prefer base::is_same, defined in base/type_traits.h. +// It is functionally identical, but is_same is the standard spelling. +template<typename A, typename B> +struct type_equals_ : public false_ { +}; + +template<typename A> +struct type_equals_<A, A> : public true_ { +}; + +// and_ is a template && operator. +// and_<A, B>::value evaluates "A::value && B::value". +template<typename A, typename B> +struct and_ : public integral_constant<bool, (A::value && B::value)> { +}; + +// or_ is a template || operator. +// or_<A, B>::value evaluates "A::value || B::value". +template<typename A, typename B> +struct or_ : public integral_constant<bool, (A::value || B::value)> { +}; + + +} // namespace internal +} // namespace protobuf +} // namespace google + +#endif // GOOGLE_PROTOBUF_TEMPLATE_UTIL_H_ |