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@@ -1,5 +1,5 @@
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/*
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-** $Id: ltm.c,v 1.18 1998/12/22 18:10:50 roberto Exp roberto $
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+** $Id: ltm.c,v 1.19 1999/01/13 19:08:10 roberto Exp roberto $
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** Tag methods
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** See Copyright Notice in lua.h
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*/
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@@ -22,8 +22,7 @@ char *luaT_eventname[] = { /* ORDER IM */
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};
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-static int luaI_checkevent (char *name, char *list[])
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-{
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+static int luaI_checkevent (char *name, char *list[]) {
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int e = luaL_findstring(name, list);
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if (e < 0)
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luaL_verror("`%.50s' is not a valid event name", name);
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@@ -35,7 +34,7 @@ static int luaI_checkevent (char *name, char *list[])
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/* events in LUA_T_NIL are all allowed, since this is used as a
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* 'placeholder' for "default" fallbacks
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*/
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-static char validevents[NUM_TAGS][IM_N] = { /* ORDER LUA_T, ORDER IM */
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+static char luaT_validevents[NUM_TAGS][IM_N] = { /* ORDER LUA_T, ORDER IM */
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{1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1}, /* LUA_T_USERDATA */
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{1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1}, /* LUA_T_NUMBER */
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{1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1}, /* LUA_T_STRING */
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@@ -45,22 +44,19 @@ static char validevents[NUM_TAGS][IM_N] = { /* ORDER LUA_T, ORDER IM */
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{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} /* LUA_T_NIL */
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};
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-
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-static int validevent (int t, int e) { /* ORDER LUA_T */
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- return (t < LUA_T_NIL) ? 1 : validevents[-t][e];
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+static int luaT_validevent (int t, int e) { /* ORDER LUA_T */
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+ return (t < LUA_T_NIL) ? 1 : luaT_validevents[-t][e];
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}
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-static void init_entry (int tag)
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-{
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+static void init_entry (int tag) {
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int i;
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for (i=0; i<IM_N; i++)
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ttype(luaT_getim(tag, i)) = LUA_T_NIL;
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}
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-void luaT_init (void)
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-{
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+void luaT_init (void) {
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int t;
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L->IMtable_size = NUM_TAGS*2;
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L->last_tag = -(NUM_TAGS-1);
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@@ -70,8 +66,7 @@ void luaT_init (void)
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}
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-int lua_newtag (void)
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-{
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+int lua_newtag (void) {
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--L->last_tag;
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if ((-L->last_tag) >= L->IMtable_size)
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L->IMtable_size = luaM_growvector(&L->IMtable, L->IMtable_size,
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@@ -81,34 +76,30 @@ int lua_newtag (void)
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}
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-static void checktag (int tag)
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-{
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+static void checktag (int tag) {
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if (!(L->last_tag <= tag && tag <= 0))
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luaL_verror("%d is not a valid tag", tag);
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}
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-void luaT_realtag (int tag)
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-{
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+void luaT_realtag (int tag) {
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if (!(L->last_tag <= tag && tag < LUA_T_NIL))
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luaL_verror("tag %d is not result of `newtag'", tag);
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}
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-int lua_copytagmethods (int tagto, int tagfrom)
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-{
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+int lua_copytagmethods (int tagto, int tagfrom) {
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int e;
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checktag(tagto);
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checktag(tagfrom);
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for (e=0; e<IM_N; e++) {
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- if (validevent(tagto, e))
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+ if (luaT_validevent(tagto, e))
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*luaT_getim(tagto, e) = *luaT_getim(tagfrom, e);
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}
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return tagto;
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}
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-int luaT_efectivetag (TObject *o)
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-{
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+int luaT_effectivetag (TObject *o) {
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int t;
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switch (t = ttype(o)) {
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case LUA_T_ARRAY:
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@@ -130,23 +121,21 @@ int luaT_efectivetag (TObject *o)
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}
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-TObject *luaT_gettagmethod (int t, char *event)
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-{
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+TObject *luaT_gettagmethod (int t, char *event) {
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int e = luaI_checkevent(event, luaT_eventname);
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checktag(t);
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- if (validevent(t, e))
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+ if (luaT_validevent(t, e))
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return luaT_getim(t,e);
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else
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return &luaO_nilobject;
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}
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-void luaT_settagmethod (int t, char *event, TObject *func)
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-{
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+void luaT_settagmethod (int t, char *event, TObject *func) {
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TObject temp = *func;
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int e = luaI_checkevent(event, luaT_eventname);
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checktag(t);
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- if (!validevent(t, e))
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+ if (!luaT_validevent(t, e))
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luaL_verror("cannot change tag method `%.20s' for type `%.20s'%.20s",
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luaT_eventname[e], luaO_typenames[-t],
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(t == LUA_T_ARRAY || t == LUA_T_USERDATA) ? " with default tag"
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@@ -189,23 +178,20 @@ static void errorFB (void)
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static void nilFB (void) { }
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-static void typeFB (void)
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-{
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+static void typeFB (void) {
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lua_error("unexpected type");
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}
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-static void fillvalids (IMS e, TObject *func)
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-{
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+static void fillvalids (IMS e, TObject *func) {
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int t;
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for (t=LUA_T_NIL; t<=LUA_T_USERDATA; t++)
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- if (validevent(t, e))
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+ if (luaT_validevent(t, e))
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*luaT_getim(t, e) = *func;
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}
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-void luaT_setfallback (void)
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-{
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+void luaT_setfallback (void) {
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static char *oldnames [] = {"error", "getglobal", "arith", "order", NULL};
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TObject oldfunc;
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lua_CFunction replace;
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