deduct variable names from implementation

diff --git a/src/types/free_exp.c b/src/types/free_exp.c
index 5603554cf15381d2c93a84c1d387c2c5c3e630cd..57ede26295cc969d460516362bc9a9ebe0726597 100644 (file)
--- a/src/types/free_exp.c
+++ b/src/types/free_exp.c
@@ -102,8 +102,7 @@ bool psi_free_exp_validate(struct psi_data *data, struct psi_free_exp *exp,
        /* now check for known vars */
        exp->let = calloc(psi_plist_count(exp->vars), sizeof(*exp->let));
        for (i = 0; psi_plist_get(exp->vars, i, &free_var); ++i) {
-               if (!psi_decl_arg_get_by_var(free_var, impl->decl->args,
-                               impl->decl->func)) {
+               if (!psi_impl_get_decl_arg(impl, free_var)) {
                        data->error(data, free_var->token, PSI_WARNING,
                                        "Unknown variable '%s' of `free` statement"
                                        " of implementation '%s'",