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//
// GMSafeValue.m
// Gengmei
//
// Created by wangyang on 2017/3/23.
// Copyright © 2017年 更美互动信息科技有限公司. All rights reserved.
//
#import "GMSafeValue.h"
@implementation GMSafeValue
+ (id)safeValue:(id)object {
return object ?: [NSNull null];
}
+ (NSString *)safeString:(id)str {
if ([str isKindOfClass:[NSNumber class]]) {
return ((NSNumber *)str).stringValue;
}
return str ?: @"";
}
+ (NSNumber *)safeNumber:(id)num {
if ([num isKindOfClass:[NSString class]]) {
return @(((NSString *)num).integerValue);
}
return num ?: @0;
}
+ (nullable NSString *)nullableString:(id)str {
if ([str isKindOfClass:[NSNumber class]]) {
return ((NSNumber *)str).stringValue;
}
return str ?: nil;
}
+ (nullable NSNumber *)nullableNumber:(id)num {
if ([num isKindOfClass:[NSString class]]) {
return @(((NSString *)num).integerValue);
}
return num ?: nil;
}
@end