switch (frame_arg->va_type) {
case PSI_T_BOOL: let_fn = psi_let_boolval; break;
case PSI_T_INT: let_fn = psi_let_intval; break;
switch (frame_arg->va_type) {
case PSI_T_BOOL: let_fn = psi_let_boolval; break;
case PSI_T_INT: let_fn = psi_let_intval; break;