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This commit is contained in:
James R 2020-11-21 13:43:32 -08:00
parent 377a9c10f0
commit 5a8e653cd5
1 changed files with 2 additions and 8 deletions
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10
src/blua/lcode.c
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@ -689,7 +689,7 @@ static void codearith (FuncState *fs, OpCode op, expdesc *e1, expdesc *e2) {
static void codeunaryarith (FuncState *fs, OpCode op, expdesc *e) {
expdesc e2;
e2.t = e2.f = NO_JUMP; e2.k = VKNUM; e2.u.nval = 0;
if (!isnumeral(e))
if (op == OP_LEN || !isnumeral(e))
luaK_exp2anyreg(fs, e); /* cannot operate on non-numeric constants */
codearith(fs, op, e, &e2);
}
@ -712,17 +712,11 @@ static void codecomp (FuncState *fs, OpCode op, int cond, expdesc *e1,
void luaK_prefix (FuncState *fs, UnOpr op, expdesc *e) {
expdesc e2;
e2.t = e2.f = NO_JUMP; e2.k = VKNUM; e2.u.nval = 0;
switch (op) {
case OPR_MINUS: codeunaryarith(fs, OP_UNM, e); break;
case OPR_BNOT: codeunaryarith(fs, OP_BNOT, e); break;
case OPR_NOT: codenot(fs, e); break;
case OPR_LEN: {
luaK_exp2anyreg(fs, e); /* cannot operate on constants */
codearith(fs, OP_LEN, e, &e2);
break;
}
case OPR_LEN: codeunaryarith(fs, OP_LEN, e); break;
default: lua_assert(0);
}
}