| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
Darcs.Patch.V2
Synopsis
- data RepoPatchV2 prim wX wY
Documentation
data RepoPatchV2 prim wX wY Source #
RepoPatchV2 is used to represents prim patches that are duplicates of, or
conflict with, another prim patch in the repository.
Normal prim: A primitive patch
Duplicate x: This patch has no effect since x is already present in the
repository.
Etacilpud x: invert (Duplicate x)
Conflictor ix xx x:
ix is the set of patches:
* that conflict with x and also conflict with another patch in the
repository.
* that conflict with a patch that conflict with x
xx is the sequence of patches that conflict *only* with x
x is the original, conflicting patch.
ix and x are stored as Non objects, which include any necessary
context to uniquely define the patch that is referred to.
The intuition is that a Conflictor should have the effect of inverting any
patches that x conflicts with, that haven't already been undone by another
Conflictor in the repository.
Therefore, the effect of a Conflictor is invert xx.
InvConflictor ix xx x: like invert (Conflictor ix xx x)