Polysemy.Internal.CustomErrors.Redefined · polysemy-1.9.2.0

familytype family IfStuck (expr :: k) (b :: k1) (c :: Exp k1) :: k1 where

Source#

IfStuck expr b c leaves b in the residual constraints whenever expr is stuck, otherwise it Evaluates c.

Equations

IfStuck (_1 AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind AnythingOfAnyKind) b c = b
IfStuck a2 b c = Eval c

datadata AnythingOfAnyKind

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typetype WhenStuck (expr :: k) (b :: Constraint) = IfStuck expr b NoErrorFcf

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Like IfStuck, but specialized to the case when you don't want to do anything if expr isn't stuck.

typetype UnlessStuck (expr :: k) (c :: Exp Constraint) = IfStuck expr NoError c

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Like IfStuck, but leaves no residual constraint when expr is stuck. This can be used to ensure an expression isn't stuck before analyzing it further.