113 lines
3.3 KiB
Objective-C
113 lines
3.3 KiB
Objective-C
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#import "FBRuntimeUtils.h"
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#import "FBMacros.h"
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#import "XCUIDevice.h"
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#include <dlfcn.h>
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#import <objc/runtime.h>
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NSArray<Class> *FBClassesThatConformsToProtocol(Protocol *protocol)
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{
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Class *classes = NULL;
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NSMutableArray *collection = [NSMutableArray array];
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int numClasses = objc_getClassList(NULL, 0);
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if (numClasses == 0 ) {
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return @[];
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}
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classes = (__unsafe_unretained Class*)malloc(sizeof(Class) * numClasses);
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numClasses = objc_getClassList(classes, numClasses);
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for (int index = 0; index < numClasses; index++) {
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Class aClass = classes[index];
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if (class_conformsToProtocol(aClass, protocol)) {
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[collection addObject:aClass];
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}
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}
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free(classes);
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return collection.copy;
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}
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void *FBRetrieveSymbolFromBinary(const char *binary, const char *name)
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{
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void *handle = dlopen(binary, RTLD_LAZY);
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NSCAssert(handle, @"%s could not be opened", binary);
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void *pointer = dlsym(handle, name);
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NSCAssert(pointer, @"%s could not be located", name);
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return pointer;
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}
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static NSString *sdkVersion = nil;
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static dispatch_once_t onceSdkVersionToken;
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NSString * _Nullable FBSDKVersion(void)
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{
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dispatch_once(&onceSdkVersionToken, ^{
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NSString *sdkName = [[NSBundle mainBundle] infoDictionary][@"DTSDKName"];
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if (sdkName) {
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// the value of DTSDKName looks like 'iphoneos9.2'
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NSRange versionRange = [sdkName rangeOfString:@"\\d+\\.\\d+" options:NSRegularExpressionSearch];
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if (versionRange.location != NSNotFound) {
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sdkVersion = [sdkName substringWithRange:versionRange];
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}
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}
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});
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return sdkVersion;
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}
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BOOL isSDKVersionLessThan(NSString *expected)
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{
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NSString *version = FBSDKVersion();
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if (nil == version) {
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return SYSTEM_VERSION_LESS_THAN(expected);
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}
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NSComparisonResult result = [version compare:expected options:NSNumericSearch];
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return result == NSOrderedAscending;
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}
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BOOL isSDKVersionLessThanOrEqualTo(NSString *expected)
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{
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NSString *version = FBSDKVersion();
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if (nil == version) {
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return SYSTEM_VERSION_LESS_THAN_OR_EQUAL_TO(expected);
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}
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NSComparisonResult result = [version compare:expected options:NSNumericSearch];
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return result == NSOrderedAscending || result == NSOrderedSame;
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}
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BOOL isSDKVersionEqualTo(NSString *expected)
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{
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NSString *version = FBSDKVersion();
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if (nil == version) {
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return SYSTEM_VERSION_EQUAL_TO(expected);
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}
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NSComparisonResult result = [version compare:expected options:NSNumericSearch];
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return result == NSOrderedSame;
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}
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BOOL isSDKVersionGreaterThanOrEqualTo(NSString *expected)
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{
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NSString *version = FBSDKVersion();
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if (nil == version) {
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return SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(expected);
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}
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NSComparisonResult result = [version compare:expected options:NSNumericSearch];
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return result == NSOrderedDescending || result == NSOrderedSame;
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}
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BOOL isSDKVersionGreaterThan(NSString *expected)
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{
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NSString *version = FBSDKVersion();
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if (nil == version) {
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return SYSTEM_VERSION_GREATER_THAN(expected);
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}
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NSComparisonResult result = [version compare:expected options:NSNumericSearch];
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return result == NSOrderedDescending;
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}
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