github/semantic
1
1
Fork 0
mirror of https://github.com/github/semantic.git synced 2024-12-22 06:11:49 +03:00
Code Issues Projects Releases Wiki Activity

Model the state in Myers’ algorithm.

Browse Source
This commit is contained in:
Rob Rix 2017-03-09 10:30:42 -05:00
parent 384e016262
commit a400c8f2af
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/SES/Myers.hs
View File

@ -11,7 +11,13 @@ data MyersF a where
MiddleSnake :: Vector.Vector a -> Vector.Vector a -> MyersF (Snake, EditDistance)
FindDPath :: Direction -> EditDistance -> Diagonal -> MyersF Endpoint
type Myers = Freer MyersF
data StepF a where
M :: MyersF a -> StepF a
S :: State (MyersState a) a -> StepF a
data MyersState a = MyersState { forward :: !(Vector.Vector a), backward :: !(Vector.Vector a) }
type Myers = Freer StepF
data Snake = Snake { xy :: Endpoint, uv :: Endpoint }