On 08 Sep 2014, at 20:19, Nicolai Hess <[email protected]> wrote:

> TxHorizontalSlider>>#extent: 
> writes to method argument
> 
> extent: newExtent
>     
>     newExtent := newExtent x @ self  defaultWidth.
>     
>     super extent: newExtent
> 
> This can not be loaded in Pharo4.0 anymore.
> 
> We should have made a compiler setting for this too :) 
> 

I think we should make it fail in such a way that when you load code 
non-interactively it just
prints an error on the transcript, while is raises a real error when in 
interactive mode.
(like what happens with non-exisitng variables)

        Marcus

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