use macro to check os version

yulingtianxia · yulingtianxia · commit 23849edeb449 · 2017-11-13T20:09:23.000+08:00
diff --git a/MessageThrottle/MessageThrottle.m b/MessageThrottle/MessageThrottle.m
@@ -13,11 +13,12 @@
 
 static inline BOOL mt_object_isClass(id _Nullable obj)
 {
-    if (@available(iOS 8.0, macOS 10.10, tvOS 9.0, watchOS 2.0, *)) {
-        return object_isClass(obj);
-    }
+#if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_8_0 || __TV_OS_VERSION_MIN_REQUIRED >= __TVOS_9_0 || __WATCH_OS_VERSION_MIN_REQUIRED >= __WATCHOS_2_0 || __MAC_OS_X_VERSION_MIN_REQUIRED >= __MAC_10_10
+    return object_isClass(obj);
+#else
     if (!obj) return NO;
     return obj == [obj class];
+#endif
 }
 
 Class mt_metaClass(Class cls)

Original file line number	Diff line number	Diff line change
`@@ -13,11 +13,12 @@`
`13`	`13`
`14`	`14`	`static inline BOOL mt_object_isClass(id _Nullable obj)`
`15`	`15`	`{`
`16`		`- if (@available(iOS 8.0, macOS 10.10, tvOS 9.0, watchOS 2.0, *)) {`
`17`		`- return object_isClass(obj);`
`18`		`- }`
	`16`	`+#if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_8_0 \|\| __TV_OS_VERSION_MIN_REQUIRED >= __TVOS_9_0 \|\| __WATCH_OS_VERSION_MIN_REQUIRED >= __WATCHOS_2_0 \|\| __MAC_OS_X_VERSION_MIN_REQUIRED >= __MAC_10_10`
	`17`	`+ return object_isClass(obj);`
	`18`	`+#else`
`19`	`19`	`if (!obj) return NO;`
`20`	`20`	`return obj == [obj class];`
	`21`	`+#endif`
`21`	`22`	`}`
`22`	`23`
`23`	`24`	`Class mt_metaClass(Class cls)`