diff

package

v0.3.10 Latest Latest Go to latest Published: May 24, 2026 License: MIT Imports: 5 Imported by: 0

Details

Package diff computes minimal deltas between the current enriched AST and a previous snapshot.

This section is empty.

This section is empty.

func CursorHash(roots []*parser.ContextNode) string

func CursorHashFlat(flat []*parser.ContextNode) string

func CursorHashForDeltas(deltas []Delta) string

Hash a delta set when roots alone don't characterize the post-state (e.g., deletions).

func CursorHashForRollback(prevHeadID, targetID int64, deltas []Delta) string

func SnapshotFromNodes(roots []*parser.ContextNode) map[string]NodeState

Build a NodeState map from enriched nodes.

type Delta struct {
	NodeID     string
	OldHash    string
	NewHash    string
	OldContent string
	NewContent string
	Op
}

func Diff(roots []*parser.ContextNode, prev map[string]NodeState) []Delta

Compare enriched nodes against the previous snapshot and returns one.

func DiffFlat(flat []*parser.ContextNode, prev map[string]NodeState) []Delta

type NodeState struct {
	Hash    string
	Content string
}

Node's hash+content pair from the previous snapshot.

type Op string

const (
	OpAdd Op = "add"
	OpMod Op = "mod"
	OpRem Op = "rem"
)