GHC/Error messages
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m (→"Foo' is not a (visible) method of class `Bar'") |
("`foo' is not applied to enough type arguments") |
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GHC error messages and their meaning. | GHC error messages and their meaning. | ||
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| + | == "`foo' is not applied to enough type arguments" == | ||
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| + | TODO | ||
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| + | Example: TODO | ||
== "foo' is not a (visible) method of class `Bar'" == | == "foo' is not a (visible) method of class `Bar'" == | ||
Revision as of 13:48, 3 December 2009
GHC error messages and their meaning.
Contents |
1 "`foo' is not applied to enough type arguments"
TODO
Example: TODO
2 "foo' is not a (visible) method of class `Bar'"
This error message occurs when one tries to instantiate a class, but did not import the functions one tries to implement.
Example:
import Prelude hiding ((==)) data Foo = Foo instance Eq Foo where (==) a b = True
3 "Cannot match a monotype with `Foo'"
See this Haskell-Cafe thread.
4 "Parse error in pattern"
TODO
Example: TODO
