Generate a TreeCursor iterator

node_walk() creates a TreeCursor starting at the current node. You can use it to "walk" the tree more efficiently than using node_child() and other similar node functions.

Usage

node_walk(x)

Arguments

x

[tree_sitter_node]

A node.

Value

A TreeCursor object.

Examples

language <- treesitter.r::language()
parser <- parser(language)

text <- "1 + foo"
tree <- parser_parse(parser, text)
node <- tree_root_node(tree)

cursor <- node_walk(node)

cursor$goto_first_child()
#> [1] TRUE
cursor$goto_first_child()
#> [1] TRUE
cursor$node()
#> <tree_sitter_node>
#> 
#> ── Text ──────────────────────────────────────────────────────────────────
#> 1
#> 
#> ── S-Expression ──────────────────────────────────────────────────────────
#> (float [(0, 0), (0, 1)])
cursor$goto_next_sibling()
#> [1] TRUE
cursor$node()
#> <tree_sitter_node>
#> 
#> ── Text ──────────────────────────────────────────────────────────────────
#> +
#> 
#> ── S-Expression ──────────────────────────────────────────────────────────
#> "+" [(0, 2), (0, 3)]