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thead-specific state separated from "global" state

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This commit is contained in:
Roberto Ierusalimschy
2001-01-19 11:20:30 -02:00
parent f2c451d745
commit 4ac58853dc
19 changed files with 268 additions and 257 deletions
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30
lvm.c
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@@ -1,5 +1,5 @@
/*
** $Id: lvm.c,v 1.153 2001/01/15 16:13:24 roberto Exp roberto $
** $Id: lvm.c,v 1.154 2001/01/18 15:59:09 roberto Exp roberto $
** Lua virtual machine
** See Copyright Notice in lua.h
*/
@@ -118,16 +118,16 @@ const TObject *luaV_gettable (lua_State *L, StkId t) {
int tg;
if (ttype(t) == LUA_TTABLE && /* `t' is a table? */
((tg = hvalue(t)->htag) == LUA_TTABLE || /* with default tag? */
luaT_gettm(L, tg, TM_GETTABLE) == NULL)) { /* or no TM? */
luaT_gettm(G(L), tg, TM_GETTABLE) == NULL)) { /* or no TM? */
/* do a primitive get */
const TObject *h = luaH_get(hvalue(t), L->top-1);
/* result is no nil or there is no `index' tag method? */
if (ttype(h) != LUA_TNIL || ((tm=luaT_gettm(L, tg, TM_INDEX)) == NULL))
if (ttype(h) != LUA_TNIL || ((tm=luaT_gettm(G(L), tg, TM_INDEX)) == NULL))
return h; /* return result */
/* else call `index' tag method */
}
else { /* try a `gettable' tag method */
tm = luaT_gettmbyObj(L, t, TM_GETTABLE);
tm = luaT_gettmbyObj(G(L), t, TM_GETTABLE);
}
if (tm != NULL) { /* is there a tag method? */
luaD_checkstack(L, 2);
@@ -152,11 +152,11 @@ void luaV_settable (lua_State *L, StkId t, StkId key) {
int tg;
if (ttype(t) == LUA_TTABLE && /* `t' is a table? */
((tg = hvalue(t)->htag) == LUA_TTABLE || /* with default tag? */
luaT_gettm(L, tg, TM_SETTABLE) == NULL)) { /* or no TM? */
luaT_gettm(G(L), tg, TM_SETTABLE) == NULL)) { /* or no TM? */
setobj(luaH_set(L, hvalue(t), key), L->top-1); /* do a primitive set */
}
else { /* try a `settable' tag method */
Closure *tm = luaT_gettmbyObj(L, t, TM_SETTABLE);
Closure *tm = luaT_gettmbyObj(G(L), t, TM_SETTABLE);
if (tm != NULL) {
luaD_checkstack(L, 3);
setobj(L->top+2, L->top-1);
@@ -174,7 +174,7 @@ void luaV_settable (lua_State *L, StkId t, StkId key) {
const TObject *luaV_getglobal (lua_State *L, TString *s) {
const TObject *value = luaH_getstr(L->gt, s);
Closure *tm = luaT_gettmbyObj(L, value, TM_GETGLOBAL);
Closure *tm = luaT_gettmbyObj(G(L), value, TM_GETGLOBAL);
if (tm == NULL) /* is there a tag method? */
return value; /* default behavior */
else { /* tag method */
@@ -191,7 +191,7 @@ const TObject *luaV_getglobal (lua_State *L, TString *s) {
void luaV_setglobal (lua_State *L, TString *s) {
TObject *oldvalue = luaH_setstr(L, L->gt, s);
Closure *tm = luaT_gettmbyObj(L, oldvalue, TM_SETGLOBAL);
Closure *tm = luaT_gettmbyObj(G(L), oldvalue, TM_SETGLOBAL);
if (tm == NULL) { /* no tag methods? */
setobj(oldvalue, L->top - 1); /* raw set */
}
@@ -209,12 +209,12 @@ void luaV_setglobal (lua_State *L, TString *s) {
static int call_binTM (lua_State *L, StkId top, TMS event) {
/* try first operand */
Closure *tm = luaT_gettmbyObj(L, top-2, event);
Closure *tm = luaT_gettmbyObj(G(L), top-2, event);
L->top = top;
if (tm == NULL) {
tm = luaT_gettmbyObj(L, top-1, event); /* try second operand */
tm = luaT_gettmbyObj(G(L), top-1, event); /* try second operand */
if (tm == NULL) {
tm = luaT_gettm(L, 0, event); /* try a `global' method */
tm = luaT_gettm(G(L), 0, event); /* try a `global' method */
if (tm == NULL)
return 0; /* error */
}
@@ -369,7 +369,7 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
}
case OP_PUSHNIL: {
int n = GETARG_U(i);
LUA_ASSERT(n>0, "invalid argument");
lua_assert(n>0);
do {
setnilvalue(top++);
} while (--n > 0);
@@ -620,8 +620,8 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
break;
}
case OP_FORLOOP: {
LUA_ASSERT(ttype(top-1) == LUA_TNUMBER, "invalid step");
LUA_ASSERT(ttype(top-2) == LUA_TNUMBER, "invalid limit");
lua_assert(ttype(top-1) == LUA_TNUMBER);
lua_assert(ttype(top-2) == LUA_TNUMBER);
if (ttype(top-3) != LUA_TNUMBER)
lua_error(L, "`for' index must be a number");
nvalue(top-3) += nvalue(top-1); /* increment index */
@@ -651,7 +651,7 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
}
case OP_LFORLOOP: {
Node *node;
LUA_ASSERT(ttype(top-3) == LUA_TTABLE, "invalid table");
lua_assert(ttype(top-3) == LUA_TTABLE);
node = luaH_next(L, hvalue(top-3), top-2);
if (node == NULL) /* end loop? */
top -= 3; /* remove table, key, and value */