+/* virtual tokens */
+%token <struct psi_token *> BSLASH
+%token <struct psi_token *> LONG_DOUBLE
+%token <struct psi_token *> INT8
+%token <struct psi_token *> UINT8
+%token <struct psi_token *> INT16
+%token <struct psi_token *> UINT16
+%token <struct psi_token *> INT32
+%token <struct psi_token *> UINT32
+%token <struct psi_token *> INT64
+%token <struct psi_token *> UINT64
+%token <struct psi_token *> INT128
+%token <struct psi_token *> UINT128
+
+