Difference between revisions of "Multi-parameter type class"
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[[Category:Language extensions]] |
[[Category:Language extensions]] |
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[[Category:Stub articles]] |
[[Category:Stub articles]] |
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== About == |
== About == |
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| − | Basically, type classes which can take multiple arguments, such as: |
+ | Basically, [[type class|type classes]] which can take multiple arguments, such as: |
<hask> |
<hask> |
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</hask> |
</hask> |
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| − | Without [[ |
+ | Without [[functional dependencies]] or [[associated types]], these multi-parameter type classes may cause too much ambiguity to pass the type-checker. |
== Also see == |
== Also see == |
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Revision as of 14:42, 11 August 2008
About
Basically, type classes which can take multiple arguments, such as:
class Foo a b
Without functional dependencies or associated types, these multi-parameter type classes may cause too much ambiguity to pass the type-checker.