[Haskell-cafe] "shadowing" keywords like "otherwise"
a.biurvOir4 at asuhan.com
Sun Jun 28 15:43:59 EDT 2009
Whoops, you're right.
Interestingly, the shadowing warnings vary between
the 2 examples I gave, i.e. shadowing within
'function definition' vs 'binding group'.
Felipe Lessa wrote:
> On Sun, Jun 28, 2009 at 12:49:12AM -0700, Kim-Ee Yeoh wrote:
>> This isn't really a shadowing/redefinition issue. Here's
>> a perfectly legitimate snippet that compiles fine:
>> f 0 = 0
>> f otherwise = 1+otherwise
> What? It is a redefinition issue *as well*, but this kind of
> warning isn't active by default
> Prelude> :s -Wall
> Prelude> let f 0 = 0; f otherwise = 1 + otherwise
> Warning: This binding for `otherwise' shadows the existing binding
> imported from Prelude
> In the definition of `f'
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