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module salix::Diff

rascal-0.40.17
salix-core-0.2.7

Usage​

import salix::Diff;

Source code​

http://github.com/usethesource/salix-core/src/main/rascal/salix/Diff.rsc

Dependencies​

import salix::Node;
import List;
import util::Math;
import IO;
import vis::Text;

data Patch​

data Patch  
     = patch(int pos, list[Patch] patches = [], list[Edit] edits = [])
     ;

Patch are positioned at pos in the parent element where they originate. This allows sparse/shallow traversal during patching: not all kids of an element will have changes, so patches for those kids will not end up in the patch at all. At each level a list of edits can be applied. A root patch will have pos = - 1.

data EditType​

data EditType  
     = setText()
     | replace()
     | removeNode()
     | appendNode()
     | setAttr()
     | setProp()
     | setEvent()
     | setExtra()
     | removeAttr()
     | removeProp()
     | removeEvent()
     | removeExtra()
     ;

data Node​

data Node  
     = none()
     ;

data Hnd​

data Hnd  
     = null()
     ;

data Edit​

data Edit  
     = edit(EditType \type, str contents="", Node html=none(), Hnd handler=null(),
        str name="", str val="", value extra=())
     ;

function diff​

Patch diff(Node old, Node new)

Patch diff(Node old, Node new, int idx)

function diffKids​

Patch diffKids(list[Node] oldKids, list[Node] newKids, Patch myPatch)

function diffEventMap​

list[Edit] diffEventMap(map[str, Hnd] old, map[str, Hnd] new)

function diffMap​

list[Edit] diffMap(map[str, str] old, map[str, str] new, EditType upd, EditType del)

function diffExtra​

list[Edit] diffExtra(map[str, value] old, map[str, value] new)