DrSocalkwe3n/luajit
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Treat the tag of a TValue as unsigned everywhere.

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This commit is contained in:
Mike Pall
2010-04-25 23:21:15 +02:00
parent f396f3d192
commit 41379126a2
7 changed files with 39 additions and 40 deletions
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7
src/lj_api.c
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@@ -195,9 +195,10 @@ LUA_API int lua_type(lua_State *L, int idx)
} else if (o == niltv(L)) {
return LUA_TNONE;
} else { /* Magic internal/external tag conversion. ORDER LJ_T */
int t = ~itype(o);
lua_assert(itype(o) != LJ_TUPVAL);
return (int)(((t < 8 ? 0x98042110 : 0x7506) >> 4*(t&7)) & 15u);
uint32_t t = ~itype(o);
int tt = (int)(((t < 8 ? 0x98042110 : 0x7506) >> 4*(t&7)) & 15u);
lua_assert(tt != LUA_TNIL || tvisnil(o));
return tt;
}
}