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authorAlexander Lantsev <aunsane@gmail.com>2016-06-13 14:18:51 +0000
committerAlexander Lantsev <aunsane@gmail.com>2016-06-13 14:18:51 +0000
commit8cf571c5ea48be2d281d2c83ed0f2dba6f2c32f4 (patch)
tree0345c47dc55eee01884f535fb26e0a2d44732213 /libs/liblua/src/ltm.c
parent4386b8b61c08045c5d416b546517e1c71c7dcae6 (diff)
lublua:
- updated to 5.3.3 - renamed to lua53.dll git-svn-id: http://svn.miranda-ng.org/main/trunk@16965 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'libs/liblua/src/ltm.c')
-rw-r--r--libs/liblua/src/ltm.c38
1 files changed, 30 insertions, 8 deletions
diff --git a/libs/liblua/src/ltm.c b/libs/liblua/src/ltm.c
index 25b46b17f9..4650cc2931 100644
--- a/libs/liblua/src/ltm.c
+++ b/libs/liblua/src/ltm.c
@@ -1,5 +1,5 @@
/*
-** $Id: ltm.c,v 2.33 2014/11/21 12:15:57 roberto Exp $
+** $Id: ltm.c,v 2.37 2016/02/26 19:20:15 roberto Exp $
** Tag methods
** See Copyright Notice in lua.h
*/
@@ -57,7 +57,7 @@ void luaT_init (lua_State *L) {
** tag methods
*/
const TValue *luaT_gettm (Table *events, TMS event, TString *ename) {
- const TValue *tm = luaH_getstr(events, ename);
+ const TValue *tm = luaH_getshortstr(events, ename);
lua_assert(event <= TM_EQ);
if (ttisnil(tm)) { /* no tag method? */
events->flags |= cast_byte(1u<<event); /* cache this fact */
@@ -79,20 +79,41 @@ const TValue *luaT_gettmbyobj (lua_State *L, const TValue *o, TMS event) {
default:
mt = G(L)->mt[ttnov(o)];
}
- return (mt ? luaH_getstr(mt, G(L)->tmname[event]) : luaO_nilobject);
+ return (mt ? luaH_getshortstr(mt, G(L)->tmname[event]) : luaO_nilobject);
+}
+
+
+/*
+** Return the name of the type of an object. For tables and userdata
+** with metatable, use their '__name' metafield, if present.
+*/
+const char *luaT_objtypename (lua_State *L, const TValue *o) {
+ Table *mt;
+ if ((ttistable(o) && (mt = hvalue(o)->metatable) != NULL) ||
+ (ttisfulluserdata(o) && (mt = uvalue(o)->metatable) != NULL)) {
+ const TValue *name = luaH_getshortstr(mt, luaS_new(L, "__name"));
+ if (ttisstring(name)) /* is '__name' a string? */
+ return getstr(tsvalue(name)); /* use it as type name */
+ }
+ return ttypename(ttnov(o)); /* else use standard type name */
}
void luaT_callTM (lua_State *L, const TValue *f, const TValue *p1,
const TValue *p2, TValue *p3, int hasres) {
ptrdiff_t result = savestack(L, p3);
- setobj2s(L, L->top++, f); /* push function (assume EXTRA_STACK) */
- setobj2s(L, L->top++, p1); /* 1st argument */
- setobj2s(L, L->top++, p2); /* 2nd argument */
+ StkId func = L->top;
+ setobj2s(L, func, f); /* push function (assume EXTRA_STACK) */
+ setobj2s(L, func + 1, p1); /* 1st argument */
+ setobj2s(L, func + 2, p2); /* 2nd argument */
+ L->top += 3;
if (!hasres) /* no result? 'p3' is third argument */
setobj2s(L, L->top++, p3); /* 3rd argument */
/* metamethod may yield only when called from Lua code */
- luaD_call(L, L->top - (4 - hasres), hasres, isLua(L->ci));
+ if (isLua(L->ci))
+ luaD_call(L, func, hasres);
+ else
+ luaD_callnoyield(L, func, hasres);
if (hasres) { /* if has result, move it to its place */
p3 = restorestack(L, result);
setobjs2s(L, p3, --L->top);
@@ -117,6 +138,7 @@ void luaT_trybinTM (lua_State *L, const TValue *p1, const TValue *p2,
switch (event) {
case TM_CONCAT:
luaG_concaterror(L, p1, p2);
+ /* call never returns, but to avoid warnings: *//* FALLTHROUGH */
case TM_BAND: case TM_BOR: case TM_BXOR:
case TM_SHL: case TM_SHR: case TM_BNOT: {
lua_Number dummy;
@@ -124,8 +146,8 @@ void luaT_trybinTM (lua_State *L, const TValue *p1, const TValue *p2,
luaG_tointerror(L, p1, p2);
else
luaG_opinterror(L, p1, p2, "perform bitwise operation on");
- /* else go through */
}
+ /* calls never return, but to avoid warnings: *//* FALLTHROUGH */
default:
luaG_opinterror(L, p1, p2, "perform arithmetic on");
}