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Lua: fix crash with unary not (~) on boolean constant/nil and let it work on boolean/nil values in general

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This commit is contained in:
James R 2020-11-20 19:17:32 -08:00
parent 85c5fa9527
commit 42c72b7b0d
1 changed files with 4 additions and 1 deletions
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5
src/blua/lvm.c
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@ -541,11 +541,14 @@ void luaV_execute (lua_State *L, int nexeccalls) {
continue; continue;
} }
case OP_BNOT: { case OP_BNOT: {
TValue *rb = RB(i); TValue *rb = RKB(i);
if (ttisnumber(rb)) { if (ttisnumber(rb)) {
lua_Number nb = nvalue(rb); lua_Number nb = nvalue(rb);
setnvalue(ra, luai_numnot(nb)); setnvalue(ra, luai_numnot(nb));
} }
else if (ttisboolean(rb) || ttisnil(rb)) {
setbvalue(ra, l_isfalse(rb));
}
else { else {
Protect(Arith(L, ra, rb, rb, TM_NOT)); Protect(Arith(L, ra, rb, rb, TM_NOT));
} }