B_AT_FN_STR
func : STR '(' PVAR ')' { $$ = ba_new($3, B_AT_FN_STR); }
| STR '(' PVAR ',' expr ')' { $$ = ba_op(B_AT_FN_STR, $3, $5); }
{ "str", STR, B_AT_FN_STR },
case B_AT_FN_STR:
assert(ba->ba_type == B_AT_FN_STR);
case B_AT_FN_STR:
case B_AT_FN_STR:
case B_AT_FN_STR:
case B_AT_FN_STR: