Safe Haskell	None
Language	Haskell2010

Darcs.Patch.Witnesses.Eq

Synopsis

Documentation

data EqCheck wA wB where Source #

EqCheck is used to pass around evidence (or lack thereof) of two witness types being equal.

Constructors

IsEq :: EqCheck wA wA
NotEq :: EqCheck wA wB

Instances

Eq (EqCheck wA wB) Source #
Methods (==) :: EqCheck wA wB -> EqCheck wA wB -> Bool # (/=) :: EqCheck wA wB -> EqCheck wA wB -> Bool #
Show (EqCheck wA wB) Source #
Methods showsPrec :: Int -> EqCheck wA wB -> ShowS # show :: EqCheck wA wB -> String # showList :: [EqCheck wA wB] -> ShowS #

class Eq2 p where Source #

An witness aware equality class. A minimal definition defines any one of unsafeCompare, =\/= and =/\=.

Methods

unsafeCompare :: p wA wB -> p wC wD -> Bool Source #

It is unsafe to define a class instance via this method, because if it returns True then the default implementations of =\/= and =/\= will coerce the equality of two witnesses.

Calling this method is safe, although =\/= or =/\= would be better choices as it is not usually meaningul to compare two patches that don't share either a starting or an ending context

(=\/=) :: p wA wB -> p wA wC -> EqCheck wB wC infix 4 Source #

Compare two things with the same starting witness. If the things compare equal, evidence of the ending witnesses being equal will be returned.

(=/\=) :: p wA wC -> p wB wC -> EqCheck wA wB infix 4 Source #

Compare two things with the same ending witness. If the things compare equal, evidence of the starting witnesses being equal will be returned.

Instances

Eq2 DirPatchType Source #
Methods unsafeCompare :: DirPatchType wA wB -> DirPatchType wC wD -> Bool Source # (=\/=) :: DirPatchType wA wB -> DirPatchType wA wC -> EqCheck wB wC Source # (=/\=) :: DirPatchType wA wC -> DirPatchType wB wC -> EqCheck wA wB Source #
Eq2 FilePatchType Source #
Methods unsafeCompare :: FilePatchType wA wB -> FilePatchType wC wD -> Bool Source # (=\/=) :: FilePatchType wA wB -> FilePatchType wA wC -> EqCheck wB wC Source # (=/\=) :: FilePatchType wA wC -> FilePatchType wB wC -> EqCheck wA wB Source #
Eq2 Prim Source #
Methods unsafeCompare :: Prim wA wB -> Prim wC wD -> Bool Source # (=\/=) :: Prim wA wB -> Prim wA wC -> EqCheck wB wC Source # (=/\=) :: Prim wA wC -> Prim wB wC -> EqCheck wA wB Source #
Eq2 Prim Source #
Methods unsafeCompare :: Prim wA wB -> Prim wC wD -> Bool Source # (=\/=) :: Prim wA wB -> Prim wA wC -> EqCheck wB wC Source # (=/\=) :: Prim wA wC -> Prim wB wC -> EqCheck wA wB Source #
Eq2 HunkMove Source #
Methods unsafeCompare :: HunkMove wA wB -> HunkMove wC wD -> Bool Source # (=\/=) :: HunkMove wA wB -> HunkMove wA wC -> EqCheck wB wC Source # (=/\=) :: HunkMove wA wC -> HunkMove wB wC -> EqCheck wA wB Source #
Eq2 Hunk Source #
Methods unsafeCompare :: Hunk wA wB -> Hunk wC wD -> Bool Source # (=\/=) :: Hunk wA wB -> Hunk wA wC -> EqCheck wB wC Source # (=/\=) :: Hunk wA wC -> Hunk wB wC -> EqCheck wA wB Source #
Eq2 WPatchInfo Source #
Methods unsafeCompare :: WPatchInfo wA wB -> WPatchInfo wC wD -> Bool Source # (=\/=) :: WPatchInfo wA wB -> WPatchInfo wA wC -> EqCheck wB wC Source # (=/\=) :: WPatchInfo wA wC -> WPatchInfo wB wC -> EqCheck wA wB Source #
Eq2 Prim Source #
Methods unsafeCompare :: Prim wA wB -> Prim wC wD -> Bool Source # (=\/=) :: Prim wA wB -> Prim wA wC -> EqCheck wB wC Source # (=/\=) :: Prim wA wC -> Prim wB wC -> EqCheck wA wB Source #
Eq2 Prim Source #
Methods unsafeCompare :: Prim wA wB -> Prim wC wD -> Bool Source # (=\/=) :: Prim wA wB -> Prim wA wC -> EqCheck wB wC Source # (=/\=) :: Prim wA wC -> Prim wB wC -> EqCheck wA wB Source #
Eq2 DummyPatch Source #
Methods unsafeCompare :: DummyPatch wA wB -> DummyPatch wC wD -> Bool Source # (=\/=) :: DummyPatch wA wB -> DummyPatch wA wC -> EqCheck wB wC Source # (=/\=) :: DummyPatch wA wC -> DummyPatch wB wC -> EqCheck wA wB Source #
Eq2 p => Eq2 (LabelledPatch p) Source #
Methods unsafeCompare :: LabelledPatch p wA wB -> LabelledPatch p wC wD -> Bool Source # (=\/=) :: LabelledPatch p wA wB -> LabelledPatch p wA wC -> EqCheck wB wC Source # (=/\=) :: LabelledPatch p wA wC -> LabelledPatch p wB wC -> EqCheck wA wB Source #
(Commute p, Eq2 p) => Eq2 (Named p) Source #
Methods unsafeCompare :: Named p wA wB -> Named p wC wD -> Bool Source # (=\/=) :: Named p wA wB -> Named p wA wC -> EqCheck wB wC Source # (=/\=) :: Named p wA wC -> Named p wB wC -> EqCheck wA wB Source #
Eq2 (RebaseName p) Source #
Methods unsafeCompare :: RebaseName p wA wB -> RebaseName p wC wD -> Bool Source # (=\/=) :: RebaseName p wA wB -> RebaseName p wA wC -> EqCheck wB wC Source # (=/\=) :: RebaseName p wA wC -> RebaseName p wB wC -> EqCheck wA wB Source #
Eq2 (PrimOf p) => Eq2 (RebaseFixup p) Source #
Methods unsafeCompare :: RebaseFixup p wA wB -> RebaseFixup p wC wD -> Bool Source # (=\/=) :: RebaseFixup p wA wB -> RebaseFixup p wA wC -> EqCheck wB wC Source # (=/\=) :: RebaseFixup p wA wC -> RebaseFixup p wB wC -> EqCheck wA wB Source #
(PrimPatchBase p, Commute p, Eq2 p) => Eq2 (RebaseSelect p) Source #
Methods unsafeCompare :: RebaseSelect p wA wB -> RebaseSelect p wC wD -> Bool Source # (=\/=) :: RebaseSelect p wA wB -> RebaseSelect p wA wC -> EqCheck wB wC Source # (=/\=) :: RebaseSelect p wA wC -> RebaseSelect p wB wC -> EqCheck wA wB Source #
PrimPatch prim => Eq2 (RepoPatchV2 prim) Source #
Methods unsafeCompare :: RepoPatchV2 prim wA wB -> RepoPatchV2 prim wC wD -> Bool Source # (=\/=) :: RepoPatchV2 prim wA wB -> RepoPatchV2 prim wA wC -> EqCheck wB wC Source # (=/\=) :: RepoPatchV2 prim wA wC -> RepoPatchV2 prim wB wC -> EqCheck wA wB Source #
(Eq2 a, Eq2 b) => Eq2 ((:>) a b) Source #
Methods unsafeCompare :: (a :> b) wA wB -> (a :> b) wC wD -> Bool Source # (=\/=) :: (a :> b) wA wB -> (a :> b) wA wC -> EqCheck wB wC Source # (=/\=) :: (a :> b) wA wC -> (a :> b) wB wC -> EqCheck wA wB Source #
Eq2 (PatchInfoAnd rt p) Source #
Methods unsafeCompare :: PatchInfoAnd rt p wA wB -> PatchInfoAnd rt p wC wD -> Bool Source # (=\/=) :: PatchInfoAnd rt p wA wB -> PatchInfoAnd rt p wA wC -> EqCheck wB wC Source # (=/\=) :: PatchInfoAnd rt p wA wC -> PatchInfoAnd rt p wB wC -> EqCheck wA wB Source #

isIsEq :: EqCheck wA wB -> Bool Source #