49 lines
1.4 KiB
Objective-C
49 lines
1.4 KiB
Objective-C
//
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// MJFoundation.m
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// MJExtensionExample
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//
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// Created by MJ Lee on 14/7/16.
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// Copyright (c) 2014年 小码哥. All rights reserved.
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//
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#import "MJFoundation.h"
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#import "MJExtensionConst.h"
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#import <CoreData/CoreData.h>
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static NSSet *foundationClasses_;
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@implementation MJFoundation
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+ (NSSet *)foundationClasses
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{
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if (foundationClasses_ == nil) {
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// 集合中没有NSObject，因为几乎所有的类都是继承自NSObject，具体是不是NSObject需要特殊判断
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foundationClasses_ = [NSSet setWithObjects:
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[NSURL class],
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[NSDate class],
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[NSValue class],
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[NSData class],
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[NSError class],
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[NSArray class],
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[NSDictionary class],
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[NSString class],
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[NSAttributedString class], nil];
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}
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return foundationClasses_;
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}
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+ (BOOL)isClassFromFoundation:(Class)c
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{
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if (c == [NSObject class] || c == [NSManagedObject class]) return YES;
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__block BOOL result = NO;
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[[self foundationClasses] enumerateObjectsUsingBlock:^(Class foundationClass, BOOL *stop) {
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if ([c isSubclassOfClass:foundationClass]) {
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result = YES;
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*stop = YES;
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}
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}];
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return result;
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}
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@end
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