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POWeird memory issues, with ARC enabled
 

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  1. POWeird memory issues, with ARC enabled
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    <p>I am having a very, very strange error, probably related to memory management (even though I'm using ARC).</p> <p>I have a my AppDelegate, Foo, and SubFoo (which is a subclass of Foo).</p> <p>Foo.h</p> <pre><code>@protocol FooDelegate &lt;NSObject&gt; - (void)didReceiveDownloadRequest:(NSURLRequest *)downloadRequest; @end @interface Foo : NSObject { __weak id &lt;FooDelegate&gt; delegate; } - (void)performRequest; @property (nonatomic, weak) id &lt;FooDelegate&gt; delegate; @property (nonatomic, retain) NSString *fileIdentifier; </code></pre> <p>Foo.m</p> <pre><code>@implementation Foo @synthesize delegate, fileIdentifier; - (id)init { if ((self = [super init])) { self.delegate = nil; // I tried leaving this line out, same result. NSLog(@"I am %p.", self); } return self; } - (void)performRequest { // Bah. } @end </code></pre> <p>SubFoo.h</p> <pre><code>@interface SubFoo : Foo { WebView *aWebView; } </code></pre> <p>SubFoo.m</p> <pre><code>- (void)performRequest { if (self.fileIdentifier) { aWebView = [[WebView alloc] init]; [aWebView setFrameLoadDelegate:self]; [[aWebView mainFrame] loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"theURL"]]; } } - (void)webView:(WebView *)sender didFinishLoadForFrame:(WebFrame *)frame { NSLog(@"Finished loading."); // ... NSLog(@"Class Name: %@", NSStringFromClass([self class])); NSLog(@"Memory Location of delegate: %p", self.delegate); // ... } </code></pre> <p>Sometimes, the class name on webView:didFinishLoadForFrame: returns a completely different class (instead of SubFoo, it returns random classes, like NSSet, NSArray, it even sometimes returns CFXPreferencesSearchListSource), other times it just crashes there with an EXC_BAD_ACCESS, and when it returns a random class on Class Name: it returns that [randomClassName delegate] is an unrecognized selector.</p> <p><strong>EDIT</strong>: When self gets set to another thing, it gets set RIGHT on webView:didFinishLoadForFrame:, and on performRequest it is ALWAYS SubFoo.</p> <p>Any help here would be appreciated.</p>
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      1. POWeird memory issues, with ARC enabled
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    1. CO(Sorry, this was a misunderstanding - deleted)
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      1. POWeird memory issues, with ARC enabled
      1. USHermann Klecker
    2. COIs your `WebView` a property? Also, just wondering, why are you using `retain` instead of `strong`, which is the new convention for ARC?
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      1. POWeird memory issues, with ARC enabled
      1. USMishieMoo
    3. CO@MishieMoo `retain` and `strong` are exactly the same, and anyway for a NSString it should be `copy` instead.
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      1. POWeird memory issues, with ARC enabled
      1. USRichard J. Ross III
 

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