Tree traversal

TreeWrapper provides RootNode, Walk, and Filter. Walk is depth-first; return false from its callback to skip a node's children.

result.Tree.Walk(func(node *sunset.Node, depth int) bool {
    fmt.Printf("%s at %d:%d\n", node.Type(), node.Position().Row, node.Position().Column)
    return true
})

Node provides Raw, Type, Text, Position, EndPosition, Children, NamedChildren, ChildByFieldName, Parent, IsNamed, IsError, IsMissing, and ChildCount. Raw exposes the underlying tree-sitter node for advanced use.

Position.Row and Position.Column are zero-based, matching tree-sitter positions. Filter(nodeType) returns every node whose grammar type matches nodeType.