CODEWITHSUNDEEP
objective-cxcode
vish
vish

Reputation: 2436

Returning NSString instead of NSURL does not cause warning

I had a function that was supposed to return an NSURL, but I accidentally had it return an NSString. Xcode did not issue any warnings. Any idea why this is or how I can enable warnings for this. (It lead to a crash later in the app). Incidentally, if I change the function to return an NSMutableDictionary, I do get a compiler warning about incompatible return types. I am using Xcode 4.5.1.

-(NSURL *) urlForThing:(Thing *)thing
{
    //This is clearly a string at compile time and I would expect a warning
    //If I change this to [NSMutableDictionary alloc] I do get a warning
    return [NSString stringWithFormat:@"thing://url/%@", thing];
}

Upvotes: 2

Views: 69

Answers (1)

vish
vish

Reputation: 2436

Well, I suppose the short answer is that stringWithFormat: returns an id, not an NSString. This doesn't make much sense to me, but it explains the lack of warning.

Upvotes: 2

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