[erlang-questions] Local namespaces in case/try

Dmitry Groshev <>
Tue Jul 10 11:32:28 CEST 2012


Excuse me, Richard, but it's not an answer.

On Tuesday, July 10, 2012 1:02:29 PM UTC+4, Richard Carlsson wrote:
>
> On 07/10/2012 10:43 AM, Dmitry Groshev wrote: 
> > case do_something() of 
> >      {ok, Result} -> Result; 
> >      {error, Error} -> Error 
> > end, 
> > case do_another() of 
> >      {ok, Result} -> Result; 
> >      {error, Error} -> Error 
> > end, 
> > 
> > Result and Error are bound in first case and we will probably have a 
> > match failure in second one. Compiler warns about this, but it's still 
> > very unwieldy to fix it with names like Error1, Error2, etc. 
>
> Take it as a sign that you should break out those case expressions into 
> separate functions, or restructure the code in some other way. 
>
>      /Richard 
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