自动引用计数问题:将非本地对象的地址传递给__autoreleasing参数以进行回写 [英] Automatic Reference Counting Issue: Passing address of non-local object to __autoreleasing parameter for write-back
问题描述
我正在尝试将指针传递给指向某个方法的指针,但显然ARC在如何操作方面存在一些问题。这里有两种方法:
I'm trying to pass pointer to pointer to a method, but apparently ARC has some issues with how I'm doing it. Here the two methods:
+ (NSString *)personPropertyNameForIndex:(kSHLPersonDetailsTableRowIndex)index
{
static NSArray *propertyNames = nil;
(nil == propertyNames) ?
[self SHL_initPersonPropertyNamesWithArray:&propertyNames] : NULL;
}
+ (void)SHL_initPersonPropertyNamesWithArray:(NSArray **)theArray
{
*theArray = [[NSArray alloc]
initWithObjects:@"name", @"email", @"birthdate", @"phone", nil];
}
我收到以下错误:
自动引用计数问题:将非本地对象的地址传递给__autoreleasing参数以进行回写
Automatic Reference Counting Issue: Passing address of non-local object to __autoreleasing parameter for write-back
在出现以下命令的行上:
On the line which the following command appears:
[self SHL_initPersonPropertyNamesWithArray:&propertyNames] : NULL;
推荐答案
本案需要__strong存储限定符。
The __strong storage qualifier is needed for this case.
+ (void)SHL_initPersonPropertyNamesWithArray:(NSArray * __strong *)theArray
但是,此代码不遵循基本内存管理规则。
您拥有自己创建的任何对象
You own any object you create
使用名称以alloc,new,copy或mutableCopy开头的方法创建对象(例如,alloc,newObject或mutableCopy)。
You create an object using a method whose name begins with "alloc", "new", "copy", or "mutableCopy" (for example, alloc, newObject, or mutableCopy).
您想要这样做的原因是什么?
For what reason do you want to do this?
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