Function parse_condition_expr

src/cypher/cypher.c:1203–1225

}

static cbm_expr_t *parse_condition_expr(parser_t *p) {
    /* Check for NOT prefix at condition level (e.g. NOT n.name CONTAINS "x") */
    bool negated = match(p, TOK_NOT);

    /* EXISTS { pattern } predicate (anchored single-hop existence). */
    if (check(p, TOK_EXISTS)) {
        return parse_exists_predicate(p, negated);
    }

    cbm_condition_t c = {0};
    c.negated = negated;

    int lhs_rc = parse_condition_lhs(p, &c);
    if (lhs_rc < 0) {
        return NULL;
    }
    if (lhs_rc > 0) {
        /* HAS_LABEL leaf — complete condition, no operator follows */
        return expr_leaf(c);
    }

    return parse_condition_op(p, &c);
}

/* Atom: ( expr ) | condition */
static cbm_expr_t *parse_atom_expr(parser_t *p) { // NOLINT(misc-no-recursion)