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Correct (for #486) -localizedDescription to always return a string.

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This commit is contained in:
rfm 2025-01-13 15:31:09 +00:00
parent afa5035d2c
commit 479cccebe8
1 changed files with 27 additions and 3 deletions
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30
Source/NSError.m
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@ -81,14 +81,24 @@
[super dealloc]; [super dealloc];
} }
- (NSString*) _fallback
{
return [NSString stringWithFormat: @"Error Domain=%@ Code=%lld",
[self domain], (long long)[self code]];
}
- (NSString*) description - (NSString*) description
{ {
NSMutableString *m = [NSMutableString stringWithCapacity: 200]; NSMutableString *m = [NSMutableString stringWithCapacity: 200];
NSUInteger count = [_userInfo count]; NSUInteger count = [_userInfo count];
NSString *loc = [self localizedDescription]; NSString *loc = [self localizedDescription];
NSString *fallback = [self _fallback];
[m appendFormat: @"Error Domain=%@ Code=%lld \"%@\"", [m appendString: fallback];
[self domain], (long long)[self code], loc]; if (NO == [fallback isEqual: loc])
{
[m appendFormat: @" \"%@\"", loc];
}
if ([loc isEqual: [_userInfo objectForKey: NSLocalizedDescriptionKey]]) if ([loc isEqual: [_userInfo objectForKey: NSLocalizedDescriptionKey]])
{ {
@ -206,7 +216,21 @@
- (NSString *) localizedDescription - (NSString *) localizedDescription
{ {
return [_userInfo objectForKey: NSLocalizedDescriptionKey]; NSString *s = [_userInfo objectForKey: NSLocalizedDescriptionKey];
if (nil == s)
{
s = [_userInfo objectForKey: NSLocalizedFailureReasonErrorKey];
if (s)
{
s = [NSString stringWithFormat: @"Operation failed %@", s];
}
else
{
s = [self _fallback];
}
}
return s;
} }
- (NSString *) localizedFailureReason - (NSString *) localizedFailureReason