| 779 | |
| 780 | |
| 781 | static void parlist(LexState *ls) { |
| 782 | /* parlist -> [ param { ',' param } ] */ |
| 783 | FuncState *fs = ls->fs; |
| 784 | Proto *f = fs->f; |
| 785 | int nparams = 0; |
| 786 | f->is_vararg = 0; |
| 787 | if (ls->t.token != ')') { /* is 'parlist' not empty? */ |
| 788 | do { |
| 789 | switch (ls->t.token) { |
| 790 | case TK_NAME: { /* param -> NAME */ |
| 791 | new_localvar(ls, str_checkname(ls)); |
| 792 | nparams++; |
| 793 | break; |
| 794 | } |
| 795 | case TK_DOTS: { /* param -> '...' */ |
| 796 | luaX_next(ls); |
| 797 | f->is_vararg = 2; /* declared vararg */ |
| 798 | break; |
| 799 | } |
| 800 | default: luaX_syntaxerror(ls, "<name> or '...' expected"); |
| 801 | } |
| 802 | } while (!f->is_vararg && testnext(ls, ',')); |
| 803 | } |
| 804 | adjustlocalvars(ls, nparams); |
| 805 | f->numparams = cast_byte(fs->nactvar); |
| 806 | luaK_reserveregs(fs, fs->nactvar); /* reserve register for parameters */ |
| 807 | } |
| 808 | |
| 809 | |
| 810 | static void body(LexState *ls, expdesc *e, int ismethod, int line) { |
no test coverage detected