Function reset_occurrence_cursor

internal/cbm/extract_usages.c:285–292

The unified walk already owns the exact cursor path to the current node. * Reset one reusable scratch cursor to that path before each occurrence * classifier, then walk its parents without restarting a sibling scan at * every level. Legacy extraction callers retain the node-based fallback. */

 * classifier, then walk its parents without restarting a sibling scan at
 * every level. Legacy extraction callers retain the node-based fallback. */
static TSTreeCursor *reset_occurrence_cursor(WalkState *state, TSNode node) {
    if (!state || !state->current_cursor || !state->occurrence_cursor ||
        !ts_node_eq(ts_tree_cursor_current_node(state->current_cursor), node)) {
        return NULL;
    }
    ts_tree_cursor_reset_to(state->occurrence_cursor, state->current_cursor);
    return state->occurrence_cursor;
}

static bool occurrence_parent(TSTreeCursor *cursor, TSNode current, TSNode *parent,
                              const char **field) {