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&?> ) :: Located => (FilePath -> Maybe [FilePath]) -> ([FilePath] -> Action ()) -> Rules ()shake Development.Shake Define a rule for building multiple files at the same time, a more powerful and more dangerous version of &%>. Think of it as the AND (&&) equivalent of ?>. Given an application test &?> ..., test should return Just if the rule applies, and should return the list of files that will be produced. This list must include the file passed as an argument and should obey the invariant:
forAll $ \x ys -> test x == Just ys ==> x `elem` ys && all ((== Just ys) . test) ys
Intuitively, the function defines a set partitioning, mapping each element to the partition that contains it. As an example of a function satisfying the invariant:test x | takeExtension x `elem` [".hi",".o"] = Just [dropExtension x <.> "hi", dropExtension x <.> "o"] test _ = Nothing
Regardless of whether Foo.hi or Foo.o is passed, the function always returns [Foo.hi, Foo.o].(
&: ) :: forall x (xs :: [Type]) . x -> HList xs -> HList (x ': xs)tmp-proc System.TmpProc.Docker An infix alias for HCons.
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&:& ) :: x -> y -> HList '[x, y]tmp-proc System.TmpProc.Docker An infix alias for both.
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&: ) :: forall x (xs :: [Type]) . x -> HList xs -> HList (x ': xs)tmp-proc System.TmpProc.TypeLevel An infix alias for HCons.
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&:& ) :: x -> y -> HList '[x, y]tmp-proc System.TmpProc.TypeLevel An infix alias for both.
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basic-prelude CorePrelude Boolean "and", lazy in the second argument
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&&& ) :: Arrow a => a b c -> a b c' -> a b (c, c')basic-prelude CorePrelude Fanout: send the input to both argument arrows and combine their output. The default definition may be overridden with a more efficient version if desired.
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classy-prelude ClassyPrelude Boolean "and", lazy in the second argument
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&&& ) :: Arrow a => a b c -> a b c' -> a b (c, c')classy-prelude ClassyPrelude Fanout: send the input to both argument arrows and combine their output. The default definition may be overridden with a more efficient version if desired.
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&&. ) :: SqlExpr (Value Bool) -> SqlExpr (Value Bool) -> SqlExpr (Value Bool)esqueleto Database.Esqueleto This operator translates to the SQL operator AND. Example:
where_ $ user ^. UserName ==. val Matt &&. user ^. UserAge >=. val 21