{"ast_node_type":"function","tokens":[{"end":91,"kind":"keyword","start":0,"text":"pub"}]}
pub fn preorder_expr(start: &ast::Expr, cb: &mut dyn FnMut(WalkEvent<ast::Expr>) -> bool) {
/// Note that the subtree may already be skipped due to the context analysis this function does.
    preorder_expr_with_ctx_checker(start, &is_closure_or_blk_with_modif, cb);