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- /* Copyright (c) 2014-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- */
- #pragma once
- // The C++ compiler mangles C function names. extern "C" { /* your C functions */ } prevents this.
- // You should wrap all C function prototypes declared in headers with ASDISPLAYNODE_EXTERN_C_BEGIN/END, even if
- // they are included only from .m (Objective-C) files. It's common for .m files to start using C++
- // features and become .mm (Objective-C++) files. Always wrapping the prototypes with
- // ASDISPLAYNODE_EXTERN_C_BEGIN/END will save someone a headache once they need to do this. You do not need to
- // wrap constants, only C functions. See StackOverflow for more details:
- // http://stackoverflow.com/questions/1041866/in-c-source-what-is-the-effect-of-extern-c
- #ifdef __cplusplus
- # define ASDISPLAYNODE_EXTERN_C_BEGIN extern "C" {
- # define ASDISPLAYNODE_EXTERN_C_END }
- #else
- # define ASDISPLAYNODE_EXTERN_C_BEGIN
- # define ASDISPLAYNODE_EXTERN_C_END
- #endif
- #ifdef __GNUC__
- # define ASDISPLAYNODE_GNUC(major, minor) \
- (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
- #else
- # define ASDISPLAYNODE_GNUC(major, minor) 0
- #endif
- #ifndef ASDISPLAYNODE_INLINE
- # if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
- # define ASDISPLAYNODE_INLINE static inline
- # elif defined (__MWERKS__) || defined (__cplusplus)
- # define ASDISPLAYNODE_INLINE static inline
- # elif ASDISPLAYNODE_GNUC (3, 0)
- # define ASDISPLAYNODE_INLINE static __inline__ __attribute__ ((always_inline))
- # else
- # define ASDISPLAYNODE_INLINE static
- # endif
- #endif
- #ifndef ASDISPLAYNODE_HIDDEN
- # if ASDISPLAYNODE_GNUC (4,0)
- # define ASDISPLAYNODE_HIDDEN __attribute__ ((visibility ("hidden")))
- # else
- # define ASDISPLAYNODE_HIDDEN /* no hidden */
- # endif
- #endif
- #ifndef ASDISPLAYNODE_PURE
- # if ASDISPLAYNODE_GNUC (3, 0)
- # define ASDISPLAYNODE_PURE __attribute__ ((pure))
- # else
- # define ASDISPLAYNODE_PURE /* no pure */
- # endif
- #endif
- #ifndef ASDISPLAYNODE_WARN_UNUSED
- # if ASDISPLAYNODE_GNUC (3, 4)
- # define ASDISPLAYNODE_WARN_UNUSED __attribute__ ((warn_unused_result))
- # else
- # define ASDISPLAYNODE_WARN_UNUSED /* no warn_unused */
- # endif
- #endif
- #ifndef ASDISPLAYNODE_WARN_DEPRECATED
- # define ASDISPLAYNODE_WARN_DEPRECATED 1
- #endif
- #ifndef ASDISPLAYNODE_DEPRECATED
- # if ASDISPLAYNODE_GNUC (3, 0) && ASDISPLAYNODE_WARN_DEPRECATED
- # define ASDISPLAYNODE_DEPRECATED __attribute__ ((deprecated))
- # else
- # define ASDISPLAYNODE_DEPRECATED
- # endif
- #endif
- #if defined (__cplusplus) && defined (__GNUC__)
- # define ASDISPLAYNODE_NOTHROW __attribute__ ((nothrow))
- #else
- # define ASDISPLAYNODE_NOTHROW
- #endif
- #define ARRAY_COUNT(x) sizeof(x) / sizeof(x[0])
- #ifndef __has_feature // Optional.
- #define __has_feature(x) 0 // Compatibility with non-clang compilers.
- #endif
- #ifndef __has_attribute // Optional.
- #define __has_attribute(x) 0 // Compatibility with non-clang compilers.
- #endif
- #ifndef NS_CONSUMED
- #if __has_feature(attribute_ns_consumed)
- #define NS_CONSUMED __attribute__((ns_consumed))
- #else
- #define NS_CONSUMED
- #endif
- #endif
- #ifndef NS_RETURNS_RETAINED
- #if __has_feature(attribute_ns_returns_retained)
- #define NS_RETURNS_RETAINED __attribute__((ns_returns_retained))
- #else
- #define NS_RETURNS_RETAINED
- #endif
- #endif
- #ifndef CF_RETURNS_RETAINED
- #if __has_feature(attribute_cf_returns_retained)
- #define CF_RETURNS_RETAINED __attribute__((cf_returns_retained))
- #else
- #define CF_RETURNS_RETAINED
- #endif
- #endif
- #ifndef ASDISPLAYNODE_NOT_DESIGNATED_INITIALIZER
- #define ASDISPLAYNODE_NOT_DESIGNATED_INITIALIZER() \
- do { \
- NSAssert2(NO, @"%@ is not the designated initializer for instances of %@.", NSStringFromSelector(_cmd), NSStringFromClass([self class])); \
- return nil; \
- } while (0)
- #endif // ASDISPLAYNODE_NOT_DESIGNATED_INITIALIZER
- // It's hard to pass quoted strings via xcodebuild preprocessor define arguments, so we'll convert
- // the preprocessor values to strings here.
- //
- // It takes two steps to do this in gcc as per
- // http://gcc.gnu.org/onlinedocs/cpp/Stringification.html
- #define ASDISPLAYNODE_TO_STRING(str) #str
- #define ASDISPLAYNODE_TO_UNICODE_STRING(str) @ASDISPLAYNODE_TO_STRING(str)
- #ifndef ASDISPLAYNODE_REQUIRES_SUPER
- #if __has_attribute(objc_requires_super)
- #define ASDISPLAYNODE_REQUIRES_SUPER __attribute__((objc_requires_super))
- #else
- #define ASDISPLAYNODE_REQUIRES_SUPER
- #endif
- #endif
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