diff options
Diffstat (limited to 'lvm.c')
-rw-r--r-- | lvm.c | 13 |
1 files changed, 10 insertions, 3 deletions
@@ -1,5 +1,5 @@ | |||
1 | /* | 1 | /* |
2 | ** $Id: lvm.c,v 2.136 2011/04/19 16:22:13 roberto Exp roberto $ | 2 | ** $Id: lvm.c,v 2.137 2011/05/05 16:16:33 roberto Exp roberto $ |
3 | ** Lua virtual machine | 3 | ** Lua virtual machine |
4 | ** See Copyright Notice in lua.h | 4 | ** See Copyright Notice in lua.h |
5 | */ | 5 | */ |
@@ -174,7 +174,7 @@ static const TValue *get_equalTM (lua_State *L, Table *mt1, Table *mt2, | |||
174 | if (mt1 == mt2) return tm1; /* same metatables => same metamethods */ | 174 | if (mt1 == mt2) return tm1; /* same metatables => same metamethods */ |
175 | tm2 = fasttm(L, mt2, event); | 175 | tm2 = fasttm(L, mt2, event); |
176 | if (tm2 == NULL) return NULL; /* no metamethod */ | 176 | if (tm2 == NULL) return NULL; /* no metamethod */ |
177 | if (luaO_rawequalObj(tm1, tm2)) /* same metamethods? */ | 177 | if (luaV_rawequalObj(tm1, tm2)) /* same metamethods? */ |
178 | return tm1; | 178 | return tm1; |
179 | return NULL; | 179 | return NULL; |
180 | } | 180 | } |
@@ -237,6 +237,9 @@ int luaV_lessequal (lua_State *L, const TValue *l, const TValue *r) { | |||
237 | } | 237 | } |
238 | 238 | ||
239 | 239 | ||
240 | /* | ||
241 | ** equality of Lua values. L == NULL means raw equality (no metamethods) | ||
242 | */ | ||
240 | int luaV_equalval_ (lua_State *L, const TValue *t1, const TValue *t2) { | 243 | int luaV_equalval_ (lua_State *L, const TValue *t1, const TValue *t2) { |
241 | const TValue *tm; | 244 | const TValue *tm; |
242 | lua_assert(ttisequal(t1, t2)); | 245 | lua_assert(ttisequal(t1, t2)); |
@@ -249,15 +252,19 @@ int luaV_equalval_ (lua_State *L, const TValue *t1, const TValue *t2) { | |||
249 | case LUA_TSTRING: return eqstr(rawtsvalue(t1), rawtsvalue(t2)); | 252 | case LUA_TSTRING: return eqstr(rawtsvalue(t1), rawtsvalue(t2)); |
250 | case LUA_TUSERDATA: { | 253 | case LUA_TUSERDATA: { |
251 | if (uvalue(t1) == uvalue(t2)) return 1; | 254 | if (uvalue(t1) == uvalue(t2)) return 1; |
255 | else if (L == NULL) return 0; | ||
252 | tm = get_equalTM(L, uvalue(t1)->metatable, uvalue(t2)->metatable, TM_EQ); | 256 | tm = get_equalTM(L, uvalue(t1)->metatable, uvalue(t2)->metatable, TM_EQ); |
253 | break; /* will try TM */ | 257 | break; /* will try TM */ |
254 | } | 258 | } |
255 | case LUA_TTABLE: { | 259 | case LUA_TTABLE: { |
256 | if (hvalue(t1) == hvalue(t2)) return 1; | 260 | if (hvalue(t1) == hvalue(t2)) return 1; |
261 | else if (L == NULL) return 0; | ||
257 | tm = get_equalTM(L, hvalue(t1)->metatable, hvalue(t2)->metatable, TM_EQ); | 262 | tm = get_equalTM(L, hvalue(t1)->metatable, hvalue(t2)->metatable, TM_EQ); |
258 | break; /* will try TM */ | 263 | break; /* will try TM */ |
259 | } | 264 | } |
260 | default: return gcvalue(t1) == gcvalue(t2); | 265 | default: |
266 | lua_assert(iscollectable(t1)); | ||
267 | return gcvalue(t1) == gcvalue(t2); | ||
261 | } | 268 | } |
262 | if (tm == NULL) return 0; /* no TM? */ | 269 | if (tm == NULL) return 0; /* no TM? */ |
263 | callTM(L, tm, t1, t2, L->top, 1); /* call TM */ | 270 | callTM(L, tm, t1, t2, L->top, 1); /* call TM */ |