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definition:
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maybe :: b -> (a -> b) -> Maybe a -> b
maybe n _ Nothing = n
maybe _ f (Just x) = f x
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demand:
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argument 3
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deterministic:
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deterministic operation
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documentation:
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--- The `maybe` function takes a default value, a function, and a `Maybe` value.
--- If the `Maybe` value is `Nothing`, the default value is returned.
--- Otherwise, the function is applied to the value inside the `Just`
--- and the result is returned.
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failfree:
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(_, _, _)
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indeterministic:
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referentially transparent operation
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infix:
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no fixity defined
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iotype:
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{(_,_,{Nothing}) |-> _ || (_,_,{Just}) |-> _}
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name:
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maybe
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precedence:
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no precedence defined
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result-values:
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_
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signature:
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a -> (b -> a) -> Maybe b -> a
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solution-complete:
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operation might suspend on free variables
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terminating:
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yes
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totally-defined:
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reducible on all ground data terms
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