Interesting...thanks for pointing that out! It's sort of buried in
the docs, though. I don't like it, but that's probably related to my
general dislike of exceptions (which developed after I wrote some of
our current code, unfortunately).
--
Adam
On Sep 3, 2007, at 09:14, Christiaan Hofman wrote:
> No, you should write:
>
> @try {
> NSLog(@"try 2");
> @throw @"Exceptions suck";
> }
> @catch(NSException *exception){
> NSLog(@"2: caught %@", exception);
> NSLog(@"2: name is %@", [exception name]);
> }
> @catch(id exception){
> NSLog(@"3: caught %@", exception);
> }
>
> The typing is everything. For multiple @catch blocks the first one
> with a matching type is used.
>
> Christiaan
>
> On 9/3/07, Adam R. Maxwell <[EMAIL PROTECTED]> wrote:
> On Sep 3, 2007, at 08:35, [EMAIL PROTECTED] wrote:
>
> > Use specific @catch blocks to catch thrown NSExceptions rather than
> > checking for a -name method.
>
>
> How can this work? You'd need a nested exception handler inside the
> @catch. I get this:
>
> 2007-09-03 09:02:06.254 test[7378:10b] *** -[NSCFString count]:
> unrecognized selector sent to instance 0x204c
> 2007-09-03 09:02:06.266 test[7378:10b] 1: caught *** -[NSCFString
> count]: unrecognized selector sent to instance 0x204c
> 2007-09-03 09:02:06.272 test[7378:10b] 1: name is
> NSInvalidArgumentException
> 2007-09-03 09:02: 06.276 test[7378:10b] try 2
> 2007-09-03 09:02:06.279 test[7378:10b] 2: caught Exceptions suck
> 2007-09-03 09:02:06.283 test[7378:10b] *** -[NSCFString name]:
> unrecognized selector sent to instance 0x20bc
> 2007-09-03 09:02: 06.287 test[7378:10b] *** Terminating app due to
> uncaught exception 'NSInvalidArgumentException', reason: '*** -
> [NSCFString name]: unrecognized selector sent to instance 0x20bc'
>
> --
> adam
>
> // cc test.m -fobjc-exceptions -framework Foundation -o test
>
> #import <Foundation/Foundation.h>
>
> int main (int argc, char const *argv[])
> {
> NSAutoreleasePool *pool = [NSAutoreleasePool new];
>
> NSString *eString = @"an exception";
>
> @try {
> NSLog(@"%d", [eString count]);
> }
> @catch(id exception){
> NSLog(@"1: caught %@", exception);
> NSLog(@"1: name is %@", [exception name]);
> }
>
>
> @try {
> NSLog(@"try 2");
> @throw @"Exceptions suck";
> }
> @catch(id exception){
> NSLog(@"2: caught %@", exception);
> NSLog(@"2: name is %@", [exception name]);
> }
> @catch(id exception){
> NSLog(@"3: caught %@", exception);
> }
>
> [pool release];
> return 0;
> }
>
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