Why won't the following haskell code compile?

Posted by voxcogitatio on Stack Overflow See other posts from Stack Overflow or by voxcogitatio
Published on 2010-03-17T23:05:40Z Indexed on 2010/03/17 23:11 UTC
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haskell

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beginner

I'm in the process of writing a small lisp interpreter in haskell. In the process i defined this datatype, to get a less typed number;

data Number = _Int Integer
            | _Rational Rational
            | _Float Double
    deriving(Eq,Show)

Compiling this fails with the following error:

ERROR "types.hs":16 - Syntax error in data type declaration (unexpected `|')

Line 16 is the line w. the first '|' in the code above.

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