On 30 December 2010 17:23, Markus Läll <[email protected]> wrote:
> Yes, they are in the global scope, and from what I gather: they are just
> regular functions, created by special syntax.
>
> There are a few obvious solutions (some of which you might have thought
> yourself :-):
> - rename the accessor or the other function, or
> - put the data declaration or the other function in another module and
> import qualified, or
> - write a typeclass with a 'name' function and fit the non-accessor
> function 'name' somehow into that...
>
> I think the best approach is the modular one, but this really depends on
> what you are doing.
>
>
Okay looks like name mangling with the datatypes name is in order then.
Something like :-
data Test
= Test {
testName :: String,
testValue :: Int
}
Thanks,
Aaron
--
> Markus Läll
>
> On Thu, Dec 30, 2010 at 7:01 PM, Aaron Gray <[email protected]>wrote:
>
>> Given a Haskell "record type" :-
>>
>> data Test
>> = Test {
>> name :: String,
>> value :: Int
>> }
>>
>> test = Test {
>> name = "test",
>> value = 1
>> }
>>
>> main :: IO ()
>> main = do
>> putStrLn (name test)
>>
>> Are "name" and "value" in the global name space, as the following gives an
>> error "Multiple declarations of `name'" :-
>>
>> name :: String -> String
>> name s = s
>>
>> Is there any way round this ?
>>
>> Many thanks in advance,
>>
>> Aaron
>>
>>
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>>
>>
>
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