ecency-mobile/ios/Pods/Folly/folly/portability/GFlags.h

69 lines
2.7 KiB
C++

/*
* Copyright 2016 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <folly/portability/Config.h>
#if !FOLLY_HAVE_LIBGFLAGS
// glog/logging.h is dependent on this implementation detail
// being defined otherwise it undefines all of this -_-....
//
// Also, this is deliberately expanded such that places using
// it directly break loudly. (C will break louder than C++, but oh well)
#define DECLARE_VARIABLE() \
static_assert(false, "You shouldn't be using GFlags internals.");
#define FOLLY_DECLARE_FLAG(_type, _shortType, _name) \
namespace fL##_shortType { \
extern _type FLAGS_##_name; \
} \
using fL##_shortType::FLAGS_##_name
#define DECLARE_bool(_name) FOLLY_DECLARE_FLAG(bool, B, _name)
#define DECLARE_double(_name) FOLLY_DECLARE_FLAG(double, D, _name)
#define DECLARE_int32(_name) FOLLY_DECLARE_FLAG(int, I, _name)
#define DECLARE_int64(_name) FOLLY_DECLARE_FLAG(long long, I64, _name)
#define DECLARE_uint64(_name) FOLLY_DECLARE_FLAG(unsigned long long, U64, _name)
#define DECLARE_string(_name) FOLLY_DECLARE_FLAG(std::string, S, _name)
#define FOLLY_DEFINE_FLAG(_type, _shortType, _name, _default) \
namespace fL##_shortType { \
_type FLAGS_##_name = _default; \
} \
using fL##_shortType::FLAGS_##_name
#define DEFINE_bool(_name, _default, _description) \
FOLLY_DEFINE_FLAG(bool, B, _name, _default)
#define DEFINE_double(_name, _default, _description) \
FOLLY_DEFINE_FLAG(double, D, _name, _default)
#define DEFINE_int32(_name, _default, _description) \
FOLLY_DEFINE_FLAG(int, I, _name, _default)
#define DEFINE_int64(_name, _default, _description) \
FOLLY_DEFINE_FLAG(long long, I64, _name, _default)
#define DEFINE_uint64(_name, _default, _description) \
FOLLY_DEFINE_FLAG(unsigned long long, U64, _name, _default)
#define DEFINE_string(_name, _default, _description) \
FOLLY_DEFINE_FLAG(std::string, S, _name, _default)
namespace google {
class FlagSaver {};
}
#else
#include <gflags/gflags.h>
#endif