> On 1 Aug 2018, at 00:34, Andrew P. Black <[email protected]> wrote:
> 
> I’m making a stream to write on a file using
> 
>       outputFile := FileLocator home / 'Desktop' / classBeingTranslated name 
> , '.grace'.
>       outputFile writeStreamDo: [ :s |  ... ]
> 
> Is that OK?  

Yes

> When I do the above, in the writeStreamDo: block,  s is bound to an instance 
> of  ZnCharacterWriteStream.    But that class does nt understand many methods 
> from WriteStream.  For example, #contents is not understood, and nor is 
> #ensureASpace.
> 
> To put things another way: I wrote tests using a stream created with String 
> streamContents: [ :s | ... ], and everything worked fine.   Then, for 
> production use, I switch to a stream created using outputFile writeStreamDo: 
> [ :s | ... ] and everything breaks.
> 
> I know that ZnCharacterWriteStream is fairly new.  Am I doing something 
> wrong, or is ZnCharacterWriteStream still under development?
> 
>       Andrew

The new streams are intentionally simpler, with a lighter API. If they were 
exactly the same, API wise, there would not be much point in doing them.


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