Safe Haskell | Safe-Infered |
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Documentation
module Control.Arrow.Writer.Class
newtype WriterT w r a b Source
WriterT | |
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(Monoid w, Arrow r) => ArrowWriter w (WriterT w r) | |
Monoid w => ArrowTransformer (WriterT w) | |
(Monoid w, Arrow r) => Arrow (WriterT w r) | |
(Monoid w, ArrowZero r) => ArrowZero (WriterT w r) | |
(Monoid w, ArrowPlus r) => ArrowPlus (WriterT w r) | |
(Monoid w, ArrowChoice r) => ArrowChoice (WriterT w r) | |
(Monoid w, ArrowApply r) => ArrowApply (WriterT w r) | |
(Monoid w, ArrowLoop r) => ArrowLoop (WriterT w r) | |
(Monoid w, Arrow r) => Category (WriterT w r) |