diff options
Diffstat (limited to 'parse.c')
-rw-r--r-- | parse.c | 48 |
1 files changed, 31 insertions, 17 deletions
diff --git a/parse.c b/parse.c index da88f58..104ca1d 100644 --- a/parse.c +++ b/parse.c @@ -450,25 +450,44 @@ parsecls(int *tyn) static int parserefl(int arg) { - int k, ty, env, hasenv; + int k, ty, env, hasenv, vararg; Ref r; hasenv = 0; + vararg = 0; expect(Tlparen); - while (peek() != Trparen && peek() != Tdots) { + while (peek() != Trparen) { if (curi - insb >= NIns) err("too many instructions (1)"); - env = peek() == Tenv; - if (env) { + if (!arg && vararg) + err("no parameters allowed after '...'"); + switch (peek()) { + case Tdots: + if (vararg) + err("only one '...' allowed"); + vararg = 1; + if (arg) { + *curi = (Ins){.op = Oargv}; + curi++; + } + next(); + goto Next; + case Tenv: + if (hasenv) + err("only one environment allowed"); + hasenv = 1; + env = 1; next(); k = Kl; - } else + break; + default: + env = 0; k = parsecls(&ty); + break; + } r = parseref(); if (req(r, R)) err("invalid argument"); - if (hasenv && env) - err("only one environment allowed"); if (!arg && rtype(r) != RTmp) err("invalid function parameter"); if (k == 4) @@ -487,16 +506,13 @@ parserefl(int arg) else *curi = (Ins){Opar, k, r, {R}}; curi++; - hasenv |= env; + Next: if (peek() == Trparen) break; expect(Tcomma); } - if (next() == Tdots) { - expect(Trparen); - return 1; - } - return 0; + expect(Trparen); + return vararg; } static Blk * @@ -621,10 +637,8 @@ DoOp: } if (op == Tcall) { arg[0] = parseref(); - if (parserefl(1)) - op = Ovacall; - else - op = Ocall; + parserefl(1); + op = Ocall; expect(Tnl); if (k == 4) { k = Kl; |