Darcs.Patch.Witnesses.Eq

Documentation

data EqCheck wA wB where

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

Show (EqCheck wA wB)

Defined in Darcs.Patch.Witnesses.Eq

Methods

showsPrec :: Int -> EqCheck wA wB -> ShowS

show :: EqCheck wA wB -> String

showList :: [EqCheck wA wB] -> ShowS

Eq (EqCheck wA wB)

Defined in Darcs.Patch.Witnesses.Eq

Methods

(==) :: EqCheck wA wB -> EqCheck wA wB -> Bool

(/=) :: EqCheck wA wB -> EqCheck wA wB -> Bool

class Eq2 p where

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

Minimal complete definition

unsafeCompare | (=\/=) | (=/\=)

Methods

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

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

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

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 Hunk

Defined in Darcs.Patch.Prim.FileUUID.Core

Methods

unsafeCompare :: Hunk wA wB -> Hunk wC wD -> Bool

(=\/=) :: Hunk wA wB -> Hunk wA wC -> EqCheck wB wC

(=/\=) :: Hunk wA wC -> Hunk wB wC -> EqCheck wA wB

Eq2 HunkMove

Defined in Darcs.Patch.Prim.FileUUID.Core

Methods

unsafeCompare :: HunkMove wA wB -> HunkMove wC wD -> Bool

(=\/=) :: HunkMove wA wB -> HunkMove wA wC -> EqCheck wB wC

(=/\=) :: HunkMove wA wC -> HunkMove wB wC -> EqCheck wA wB

Eq2 Prim

Defined in Darcs.Patch.Prim.FileUUID.Core

Methods

unsafeCompare :: Prim wA wB -> Prim wC wD -> Bool

(=\/=) :: Prim wA wB -> Prim wA wC -> EqCheck wB wC

(=/\=) :: Prim wA wC -> Prim wB wC -> EqCheck wA wB

Eq2 DirPatchType

Defined in Darcs.Patch.Prim.V1.Core

Methods

unsafeCompare :: DirPatchType wA wB -> DirPatchType wC wD -> Bool

(=\/=) :: DirPatchType wA wB -> DirPatchType wA wC -> EqCheck wB wC

(=/\=) :: DirPatchType wA wC -> DirPatchType wB wC -> EqCheck wA wB

Eq2 FilePatchType

Defined in Darcs.Patch.Prim.V1.Core

Methods

unsafeCompare :: FilePatchType wA wB -> FilePatchType wC wD -> Bool

(=\/=) :: FilePatchType wA wB -> FilePatchType wA wC -> EqCheck wB wC

(=/\=) :: FilePatchType wA wC -> FilePatchType wB wC -> EqCheck wA wB

Eq2 Prim

Defined in Darcs.Patch.Prim.V1.Core

Methods

unsafeCompare :: Prim wA wB -> Prim wC wD -> Bool

(=\/=) :: Prim wA wB -> Prim wA wC -> EqCheck wB wC

(=/\=) :: Prim wA wC -> Prim wB wC -> EqCheck wA wB

Eq2 RebaseName

Defined in Darcs.Patch.Rebase.Name

Methods

unsafeCompare :: RebaseName wA wB -> RebaseName wC wD -> Bool

(=\/=) :: RebaseName wA wB -> RebaseName wA wC -> EqCheck wB wC

(=/\=) :: RebaseName wA wC -> RebaseName wB wC -> EqCheck wA wB

Eq2 Prim

Defined in Darcs.Patch.V1.Prim

Methods

unsafeCompare :: Prim wA wB -> Prim wC wD -> Bool

(=\/=) :: Prim wA wB -> Prim wA wC -> EqCheck wB wC

(=/\=) :: Prim wA wC -> Prim wB wC -> EqCheck wA wB

Eq2 Prim

Defined in Darcs.Patch.V2.Prim

Methods

unsafeCompare :: Prim wA wB -> Prim wC wD -> Bool

(=\/=) :: Prim wA wB -> Prim wA wC -> EqCheck wB wC

(=/\=) :: Prim wA wC -> Prim wB wC -> EqCheck wA wB

Eq2 p => Eq2 (Invertible p)

Defined in Darcs.Patch.Invertible

Methods

unsafeCompare :: Invertible p wA wB -> Invertible p wC wD -> Bool

(=\/=) :: Invertible p wA wB -> Invertible p wA wC -> EqCheck wB wC

(=/\=) :: Invertible p wA wC -> Invertible p wB wC -> EqCheck wA wB

(Commute p, Eq2 p) => Eq2 (Named p)

Defined in Darcs.Patch.Named

Methods

unsafeCompare :: Named p wA wB -> Named p wC wD -> Bool

(=\/=) :: Named p wA wB -> Named p wA wC -> EqCheck wB wC

(=/\=) :: Named p wA wC -> Named p wB wC -> EqCheck wA wB

Eq2 p => Eq2 (Hopefully p)

Defined in Darcs.Patch.PatchInfoAnd

Methods

unsafeCompare :: Hopefully p wA wB -> Hopefully p wC wD -> Bool

(=\/=) :: Hopefully p wA wB -> Hopefully p wA wC -> EqCheck wB wC

(=/\=) :: Hopefully p wA wC -> Hopefully p wB wC -> EqCheck wA wB

Eq2 p => Eq2 (PatchInfoAndG p)

Defined in Darcs.Patch.PatchInfoAnd

Methods

unsafeCompare :: PatchInfoAndG p wA wB -> PatchInfoAndG p wC wD -> Bool

(=\/=) :: PatchInfoAndG p wA wB -> PatchInfoAndG p wA wC -> EqCheck wB wC

(=/\=) :: PatchInfoAndG p wA wC -> PatchInfoAndG p wB wC -> EqCheck wA wB

Eq2 prim => Eq2 (RepoPatchV1 prim)

Defined in Darcs.Patch.V1.Commute

Methods

unsafeCompare :: RepoPatchV1 prim wA wB -> RepoPatchV1 prim wC wD -> Bool

(=\/=) :: RepoPatchV1 prim wA wB -> RepoPatchV1 prim wA wC -> EqCheck wB wC

(=/\=) :: RepoPatchV1 prim wA wC -> RepoPatchV1 prim wB wC -> EqCheck wA wB

PrimPatch prim => Eq2 (RepoPatchV2 prim)

Defined in Darcs.Patch.V2.RepoPatch

Methods

unsafeCompare :: RepoPatchV2 prim wA wB -> RepoPatchV2 prim wC wD -> Bool

(=\/=) :: RepoPatchV2 prim wA wB -> RepoPatchV2 prim wA wC -> EqCheck wB wC

(=/\=) :: RepoPatchV2 prim wA wC -> RepoPatchV2 prim wB wC -> EqCheck wA wB

Eq2 p => Eq2 (FL p)

Defined in Darcs.Patch.Witnesses.Ordered

Methods

unsafeCompare :: FL p wA wB -> FL p wC wD -> Bool

(=\/=) :: FL p wA wB -> FL p wA wC -> EqCheck wB wC

(=/\=) :: FL p wA wC -> FL p wB wC -> EqCheck wA wB

Eq2 p => Eq2 (RL p)

Defined in Darcs.Patch.Witnesses.Ordered

Methods

unsafeCompare :: RL p wA wB -> RL p wC wD -> Bool

(=\/=) :: RL p wA wB -> RL p wA wC -> EqCheck wB wC

(=/\=) :: RL p wA wC -> RL p wB wC -> EqCheck wA wB

(Eq name, Eq2 p) => Eq2 (PrimWithName name p)

Defined in Darcs.Patch.Prim.WithName

Methods

unsafeCompare :: PrimWithName name p wA wB -> PrimWithName name p wC wD -> Bool

(=\/=) :: PrimWithName name p wA wB -> PrimWithName name p wA wC -> EqCheck wB wC

(=/\=) :: PrimWithName name p wA wC -> PrimWithName name p wB wC -> EqCheck wA wB

(SignedId name, Eq2 prim, Commute prim) => Eq2 (RepoPatchV3 name prim)

Defined in Darcs.Patch.V3.Core

Methods

unsafeCompare :: RepoPatchV3 name prim wA wB -> RepoPatchV3 name prim wC wD -> Bool

(=\/=) :: RepoPatchV3 name prim wA wB -> RepoPatchV3 name prim wA wC -> EqCheck wB wC

(=/\=) :: RepoPatchV3 name prim wA wC -> RepoPatchV3 name prim wB wC -> EqCheck wA wB

(Eq2 a, Eq2 b) => Eq2 (a :> b)

Defined in Darcs.Patch.Witnesses.Ordered

Methods

unsafeCompare :: (a :> b) wA wB -> (a :> b) wC wD -> Bool

(=\/=) :: (a :> b) wA wB -> (a :> b) wA wC -> EqCheck wB wC

(=/\=) :: (a :> b) wA wC -> (a :> b) wB wC -> EqCheck wA wB

isIsEq :: EqCheck wA wB -> Bool