Share semantic document traversal helpers

load.go

@@ -400,41 +400,6 @@ func checkVersion(rule *VersionRule, root *document.Node) []Diagnostic {
 	return canonicalDiagnostics(state.diagnostics)
 }
 
-func documentAtPath(root *document.Node, path Path) (*document.Node, bool) {
-	if root == nil || !path.valid() {
-		return nil, false
-	}
-	current := root
-	for _, segment := range path.segments {
-		switch current.Kind {
-		case document.Mapping:
-			if segment.kind == pathSegmentIndex {
-				return nil, false
-			}
-			found := false
-			for _, entry := range current.Mapping {
-				if entry.Key == segment.key {
-					current = entry.Value
-					found = true
-					break
-				}
-			}
-			if !found {
-				return nil, false
-			}
-		case document.Sequence:
-			index, ok := schemaIndex(segment)
-			if !ok || index >= len(current.Sequence) {
-				return nil, false
-			}
-			current = current.Sequence[index]
-		default:
-			return nil, false
-		}
-	}
-	return current, true
-}
-
 func documentLocationPointer(location document.Location) *Location {
 	if !locationKnown(location) {
 		return nil