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Re: SMDoubleSlider usability on GNUstep
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From: |
Yavor Doganov |
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Subject: |
Re: SMDoubleSlider usability on GNUstep |
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Date: |
Tue, 20 Feb 2018 16:30:49 +0200 |
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User-agent: |
Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM/1.14.9 (Gojō) APEL/10.8 EasyPG/1.0.0 Emacs/25.2 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) |
David Chisnall wrote:
> This then checks whether the object responds to -doubleValue, and if
> it does calls that:
>
> https://github.com/gnustep/libs-gui/blob/master/Source/NSCell.m#L265
>
> Unfortunately, in this case, it appears that the object value is
> self, so you get infinite recursion.
I think this condition is always false. _cell.has_valid_object_value
is NO and _object_value is nil. So it jumps to NSCell.m:269 and
SMDoubleSliderCell's -stringValue is called which calls -stringHiValue
which in turn calls -doubleHiValue and from there the infinite
recursion is in place.
At least this is what I observe in the debugger.