all accesses to TObjects done through macros

This commit is contained in:
Roberto Ierusalimschy 2001-01-18 13:59:09 -02:00
parent 619edfd9e4
commit f2c451d745
10 changed files with 173 additions and 185 deletions

62
lapi.c
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@ -1,5 +1,5 @@
/*
** $Id: lapi.c,v 1.115 2001/01/10 17:41:50 roberto Exp roberto $
** $Id: lapi.c,v 1.116 2001/01/10 18:56:11 roberto Exp roberto $
** Lua API
** See Copyright Notice in lua.h
*/
@ -33,7 +33,6 @@ const char lua_ident[] = "$Lua: " LUA_VERSION " " LUA_COPYRIGHT " $\n"
TObject *luaA_index (lua_State *L, int index) {
return Index(L, index);
}
@ -50,7 +49,7 @@ static TObject *luaA_indexAcceptable (lua_State *L, int index) {
void luaA_pushobject (lua_State *L, const TObject *o) {
*L->top = *o;
setobj(L->top, o);
incr_top;
}
@ -80,7 +79,7 @@ LUA_API void lua_settop (lua_State *L, int index) {
LUA_API void lua_remove (lua_State *L, int index) {
StkId p = luaA_index(L, index);
while (++p < L->top) *(p-1) = *p;
while (++p < L->top) setobj(p-1, p);
L->top--;
}
@ -88,14 +87,13 @@ LUA_API void lua_remove (lua_State *L, int index) {
LUA_API void lua_insert (lua_State *L, int index) {
StkId p = luaA_index(L, index);
StkId q;
for (q = L->top; q>p; q--)
*q = *(q-1);
*p = *L->top;
for (q = L->top; q>p; q--) setobj(q, q-1);
setobj(p, L->top);
}
LUA_API void lua_pushvalue (lua_State *L, int index) {
*L->top = *luaA_index(L, index);
setobj(L->top, luaA_index(L, index));
api_incr_top(L);
}
@ -200,21 +198,19 @@ LUA_API const void *lua_topointer (lua_State *L, int index) {
LUA_API void lua_pushnil (lua_State *L) {
ttype(L->top) = LUA_TNIL;
setnilvalue(L->top);
api_incr_top(L);
}
LUA_API void lua_pushnumber (lua_State *L, lua_Number n) {
nvalue(L->top) = n;
ttype(L->top) = LUA_TNUMBER;
setnvalue(L->top, n);
api_incr_top(L);
}
LUA_API void lua_pushlstring (lua_State *L, const char *s, size_t len) {
tsvalue(L->top) = luaS_newlstr(L, s, len);
ttype(L->top) = LUA_TSTRING;
setsvalue(L->top, luaS_newlstr(L, s, len));
api_incr_top(L);
}
@ -236,8 +232,7 @@ LUA_API void lua_pushusertag (lua_State *L, void *u, int tag) {
/* ORDER LUA_T */
if (!(tag == LUA_ANYTAG || tag == LUA_TUSERDATA || validtag(tag)))
luaO_verror(L, "invalid tag for a userdata (%d)", tag);
tsvalue(L->top) = luaS_createudata(L, u, tag);
ttype(L->top) = LUA_TUSERDATA;
setuvalue(L->top, luaS_createudata(L, u, tag));
api_incr_top(L);
}
@ -250,7 +245,7 @@ LUA_API void lua_pushusertag (lua_State *L, void *u, int tag) {
LUA_API void lua_getglobal (lua_State *L, const char *name) {
StkId top = L->top;
*top = *luaV_getglobal(L, luaS_new(L, name));
setobj(top, luaV_getglobal(L, luaS_new(L, name)));
L->top = top;
api_incr_top(L);
}
@ -259,7 +254,7 @@ LUA_API void lua_getglobal (lua_State *L, const char *name) {
LUA_API void lua_gettable (lua_State *L, int index) {
StkId t = Index(L, index);
StkId top = L->top;
*(top-1) = *luaV_gettable(L, t);
setobj(top-1, luaV_gettable(L, t));
L->top = top; /* tag method may change top */
}
@ -267,31 +262,32 @@ LUA_API void lua_gettable (lua_State *L, int index) {
LUA_API void lua_rawget (lua_State *L, int index) {
StkId t = Index(L, index);
LUA_ASSERT(ttype(t) == LUA_TTABLE, "table expected");
*(L->top - 1) = *luaH_get(hvalue(t), L->top - 1);
setobj(L->top - 1, luaH_get(hvalue(t), L->top - 1));
}
LUA_API void lua_rawgeti (lua_State *L, int index, int n) {
StkId o = Index(L, index);
LUA_ASSERT(ttype(o) == LUA_TTABLE, "table expected");
*L->top = *luaH_getnum(hvalue(o), n);
setobj(L->top, luaH_getnum(hvalue(o), n));
api_incr_top(L);
}
LUA_API void lua_getglobals (lua_State *L) {
hvalue(L->top) = L->gt;
ttype(L->top) = LUA_TTABLE;
sethvalue(L->top, L->gt);
api_incr_top(L);
}
LUA_API int lua_getref (lua_State *L, int ref) {
if (ref == LUA_REFNIL)
ttype(L->top) = LUA_TNIL;
if (ref == LUA_REFNIL) {
setnilvalue(L->top);
}
else if (0 <= ref && ref < L->nref &&
(L->refArray[ref].st == LOCK || L->refArray[ref].st == HOLD))
*L->top = L->refArray[ref].o;
(L->refArray[ref].st == LOCK || L->refArray[ref].st == HOLD)) {
setobj(L->top, &L->refArray[ref].o);
}
else
return 0;
api_incr_top(L);
@ -300,8 +296,7 @@ LUA_API int lua_getref (lua_State *L, int ref) {
LUA_API void lua_newtable (lua_State *L) {
hvalue(L->top) = luaH_new(L, 0);
ttype(L->top) = LUA_TTABLE;
sethvalue(L->top, luaH_new(L, 0));
api_incr_top(L);
}
@ -330,7 +325,7 @@ LUA_API void lua_settable (lua_State *L, int index) {
LUA_API void lua_rawset (lua_State *L, int index) {
StkId t = Index(L, index);
LUA_ASSERT(ttype(t) == LUA_TTABLE, "table expected");
*luaH_set(L, hvalue(t), L->top-2) = *(L->top-1);
setobj(luaH_set(L, hvalue(t), L->top-2), (L->top-1));
L->top -= 2;
}
@ -338,7 +333,7 @@ LUA_API void lua_rawset (lua_State *L, int index) {
LUA_API void lua_rawseti (lua_State *L, int index, int n) {
StkId o = Index(L, index);
LUA_ASSERT(ttype(o) == LUA_TTABLE, "table expected");
*luaH_setnum(L, hvalue(o), n) = *(L->top-1);
setobj(luaH_setnum(L, hvalue(o), n), (L->top-1));
L->top--;
}
@ -364,7 +359,7 @@ LUA_API int lua_ref (lua_State *L, int lock) {
MAX_INT, "reference table overflow");
ref = L->nref++;
}
L->refArray[ref].o = *(L->top-1);
setobj(&L->refArray[ref].o, L->top-1);
L->refArray[ref].st = lock ? LOCK : HOLD;
}
L->top--;
@ -442,8 +437,8 @@ LUA_API int lua_next (lua_State *L, int index) {
LUA_ASSERT(ttype(t) == LUA_TTABLE, "table expected");
n = luaH_next(L, hvalue(t), luaA_index(L, -1));
if (n) {
*(L->top-1) = *key(n);
*L->top = *val(n);
setobj(L->top-1, key(n));
setobj(L->top, val(n));
api_incr_top(L);
return 1;
}
@ -485,8 +480,7 @@ LUA_API void lua_concat (lua_State *L, int n) {
LUA_API void *lua_newuserdata (lua_State *L, size_t size) {
TString *ts = luaS_newudata(L, size, NULL);
tsvalue(L->top) = ts;
ttype(L->top) = LUA_TUSERDATA;
setuvalue(L->top, ts);
api_incr_top(L);
return ts->u.d.value;
}

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@ -1,5 +1,5 @@
/*
** $Id: ldebug.c,v 1.51 2000/11/30 18:50:47 roberto Exp roberto $
** $Id: ldebug.c,v 1.52 2000/12/26 18:46:09 roberto Exp roberto $
** Debug Interface
** See Copyright Notice in lua.h
*/
@ -29,10 +29,9 @@ static const char *getfuncname (lua_State *L, StkId f, const char **name);
static void setnormalized (TObject *d, const TObject *s) {
if (ttype(s) == LUA_TMARK) {
clvalue(d) = infovalue(s)->func;
ttype(d) = LUA_TFUNCTION;
setclvalue(d, infovalue(s)->func);
}
else *d = *s;
else setobj(d, s);
}
@ -58,7 +57,7 @@ LUA_API lua_Hook lua_setlinehook (lua_State *L, lua_Hook func) {
static StkId aux_stackedfunction (lua_State *L, int level, StkId top) {
int i;
for (i = (top-1) - L->stack; i>=0; i--) {
if (is_T_MARK(L->stack[i].ttype)) {
if (is_T_MARK(&L->stack[i])) {
if (level == 0)
return L->stack+i;
level--;
@ -168,7 +167,7 @@ LUA_API const char *lua_setlocal (lua_State *L, const lua_Debug *ar, int n) {
if (!fp) return NULL; /* `f' is not a Lua function? */
name = luaF_getlocalname(fp, n, currentpc(f));
if (!name || name[0] == '(') return NULL; /* `(' starts private locals */
*((f+1)+(n-1)) = *L->top;
setobj((f+1)+(n-1), L->top);
return name;
}

25
ldo.c
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@ -1,5 +1,5 @@
/*
** $Id: ldo.c,v 1.112 2001/01/10 16:58:11 roberto Exp roberto $
** $Id: ldo.c,v 1.113 2001/01/10 18:56:11 roberto Exp roberto $
** Stack and Call structure of Lua
** See Copyright Notice in lua.h
*/
@ -74,7 +74,7 @@ void luaD_adjusttop (lua_State *L, StkId base, int extra) {
else {
luaD_checkstack(L, diff);
while (diff--)
ttype(L->top++) = LUA_TNIL;
setnilvalue(L->top++);
}
}
@ -84,7 +84,7 @@ void luaD_adjusttop (lua_State *L, StkId base, int extra) {
*/
static void luaD_openstack (lua_State *L, StkId pos) {
int i = L->top-pos;
while (i--) pos[i+1] = pos[i];
while (i--) setobj(pos+i+1, pos+i);
incr_top;
}
@ -132,7 +132,7 @@ static StkId callCclosure (lua_State *L, const struct Closure *cl, StkId base) {
L->Cbase = base; /* new base for C function */
luaD_checkstack(L, nup+LUA_MINSTACK); /* ensure minimum stack size */
for (n=0; n<nup; n++) /* copy upvalues as extra arguments */
*(L->top++) = cl->upvalue[n];
setobj(L->top++, &cl->upvalue[n]);
n = (*cl->f.c)(L); /* do the actual call */
L->Cbase = old_Cbase; /* restore old C base */
return L->top - n; /* return index of first result */
@ -142,8 +142,7 @@ static StkId callCclosure (lua_State *L, const struct Closure *cl, StkId base) {
void luaD_callTM (lua_State *L, Closure *f, int nParams, int nResults) {
StkId base = L->top - nParams;
luaD_openstack(L, base);
clvalue(base) = f;
ttype(base) = LUA_TFUNCTION;
setclvalue(base, f);
luaD_call(L, base, nResults);
}
@ -166,13 +165,11 @@ void luaD_call (lua_State *L, StkId func, int nResults) {
if (tm == NULL)
luaG_typeerror(L, func, "call");
luaD_openstack(L, func);
clvalue(func) = tm; /* tag method is the new function to be called */
ttype(func) = LUA_TFUNCTION;
setclvalue(func, tm); /* tag method is the new function to be called */
}
cl = clvalue(func);
ci.func = cl;
infovalue(func) = &ci;
ttype(func) = LUA_TMARK;
setivalue(func, &ci);
callhook = L->callhook;
if (callhook)
luaD_callHook(L, func, callhook, "call");
@ -184,15 +181,15 @@ void luaD_call (lua_State *L, StkId func, int nResults) {
/* move results to `func' (to erase parameters and function) */
if (nResults == LUA_MULTRET) {
while (firstResult < L->top) /* copy all results */
*func++ = *firstResult++;
setobj(func++, firstResult++);
L->top = func;
}
else { /* copy at most `nResults' */
for (; nResults > 0 && firstResult < L->top; nResults--)
*func++ = *firstResult++;
setobj(func++, firstResult++);
L->top = func;
for (; nResults > 0; nResults--) { /* if there are not enough results */
ttype(L->top) = LUA_TNIL; /* adjust the stack */
setnilvalue(L->top); /* adjust the stack */
incr_top; /* must check stack space */
}
}
@ -334,7 +331,7 @@ struct lua_longjmp {
static void message (lua_State *L, const char *s) {
const TObject *em = luaH_getstr(L->gt, luaS_newliteral(L, LUA_ERRORMESSAGE));
if (ttype(em) == LUA_TFUNCTION) {
*L->top = *em;
setobj(L->top, em);
incr_top;
lua_pushstring(L, s);
luaD_call(L, L->top-2, 0);

20
lgc.c
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@ -1,5 +1,5 @@
/*
** $Id: lgc.c,v 1.74 2000/12/26 18:46:09 roberto Exp roberto $
** $Id: lgc.c,v 1.75 2000/12/28 12:55:41 roberto Exp roberto $
** Garbage Collector
** See Copyright Notice in lua.h
*/
@ -145,7 +145,7 @@ static void markall (lua_State *L) {
static int hasmark (const TObject *o) {
/* valid only for locked objects */
switch (o->ttype) {
switch (ttype(o)) {
case LUA_TSTRING: case LUA_TUSERDATA:
return tsvalue(o)->marked;
case LUA_TTABLE:
@ -290,15 +290,14 @@ static void checkMbuffer (lua_State *L) {
}
static void callgcTM (lua_State *L, const TObject *o) {
Closure *tm = luaT_gettmbyObj(L, o, TM_GC);
static void callgcTM (lua_State *L, const TObject *obj) {
Closure *tm = luaT_gettmbyObj(L, obj, TM_GC);
if (tm != NULL) {
int oldah = L->allowhooks;
L->allowhooks = 0; /* stop debug hooks during GC tag methods */
luaD_checkstack(L, 2);
clvalue(L->top) = tm;
ttype(L->top) = LUA_TFUNCTION;
*(L->top+1) = *o;
setclvalue(L->top, tm);
setobj(L->top+1, obj);
L->top += 2;
luaD_call(L, L->top-2, 0);
L->allowhooks = oldah; /* restore hooks */
@ -308,15 +307,14 @@ static void callgcTM (lua_State *L, const TObject *o) {
static void callgcTMudata (lua_State *L) {
int tag;
TObject o;
ttype(&o) = LUA_TUSERDATA;
L->GCthreshold = 2*L->nblocks; /* avoid GC during tag methods */
for (tag=L->ntag-1; tag>=0; tag--) { /* for each tag (in reverse order) */
TString *udata;
while ((udata = L->TMtable[tag].collected) != NULL) {
TObject obj;
L->TMtable[tag].collected = udata->nexthash; /* remove it from list */
tsvalue(&o) = udata;
callgcTM(L, &o);
setuvalue(&obj, udata);
callgcTM(L, &obj);
luaM_free(L, udata, sizeudata(udata->len));
}
}

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@ -1,5 +1,5 @@
/*
** $Id: liolib.c,v 1.97 2001/01/10 16:58:11 roberto Exp roberto $
** $Id: liolib.c,v 1.98 2001/01/11 18:59:03 roberto Exp roberto $
** Standard I/O (and system) library
** See Copyright Notice in lua.h
*/
@ -87,11 +87,11 @@ static int pushresult (lua_State *L, int i) {
static FILE *gethandle (lua_State *L, IOCtrl *ctrl, int f) {
void *p = lua_touserdata(L, f);
FILE *p = (FILE *)lua_touserdata(L, f);
if (p != NULL) { /* is `f' a userdata ? */
int ftag = lua_tag(L, f);
if (ftag == ctrl->iotag) /* does it have the correct tag? */
return (FILE *)p;
return p;
else if (ftag == ctrl->closedtag)
lua_error(L, "cannot access a closed file");
/* else go through */
@ -496,7 +496,7 @@ static int getfield (lua_State *L, const char *key, int d) {
lua_pushstring(L, key);
lua_rawget(L, -2);
if (lua_isnumber(L, -1))
res = lua_tonumber(L, -1);
res = (int)lua_tonumber(L, -1);
else {
if (d == -2)
luaL_verror(L, "field `%.20s' missing in date table", key);

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@ -1,5 +1,5 @@
/*
** $Id: lobject.h,v 1.84 2000/12/04 18:33:40 roberto Exp roberto $
** $Id: lobject.h,v 1.85 2000/12/28 12:55:41 roberto Exp roberto $
** Type definitions for Lua objects
** See Copyright Notice in lua.h
*/
@ -40,32 +40,61 @@
/* check whether `t' is a mark */
#define is_T_MARK(t) ((t) == LUA_TMARK)
#define is_T_MARK(t) (ttype(t) == LUA_TMARK)
typedef union {
struct TString *ts; /* LUA_TSTRING, LUA_TUSERDATA */
struct Closure *cl; /* LUA_TFUNCTION */
struct Hash *a; /* LUA_TTABLE */
struct CallInfo *i; /* LUA_TLMARK */
void *v;
lua_Number n; /* LUA_TNUMBER */
} Value;
typedef struct lua_TObject {
int tt;
Value value;
} TObject;
/* Macros to access values */
#define ttype(o) ((o)->ttype)
#define ttype(o) ((o)->tt)
#define nvalue(o) ((o)->value.n)
#define tsvalue(o) ((o)->value.ts)
#define clvalue(o) ((o)->value.cl)
#define hvalue(o) ((o)->value.a)
#define infovalue(o) ((o)->value.i)
#define tsvalue(o) ((struct TString *)(o)->value.v)
#define clvalue(o) ((struct Closure *)(o)->value.v)
#define hvalue(o) ((struct Hash *)(o)->value.v)
#define infovalue(o) ((struct CallInfo *)(o)->value.v)
#define svalue(o) (tsvalue(o)->str)
typedef struct lua_TObject {
int ttype;
Value value;
} TObject;
/* Macros to set values */
#define setnvalue(obj,x) \
{ TObject *o=(obj); o->tt=LUA_TNUMBER; o->value.n=(x); }
#define setsvalue(obj,x) \
{ TObject *o=(obj); struct TString *v=(x); \
o->tt=LUA_TSTRING; o->value.v=v; }
#define setuvalue(obj,x) \
{ TObject *o=(obj); struct TString *v=(x); \
o->tt=LUA_TUSERDATA; o->value.v=v; }
#define setclvalue(obj,x) \
{ TObject *o=(obj); struct Closure *v=(x); \
o->tt=LUA_TFUNCTION; o->value.v=v; }
#define sethvalue(obj,x) \
{ TObject *o=(obj); struct Hash *v=(x); \
o->tt=LUA_TTABLE; o->value.v=v; }
#define setivalue(obj,x) \
{ TObject *o=(obj); struct CallInfo *v=(x); \
o->tt=LUA_TMARK; o->value.v=v; }
#define setnilvalue(obj) { (obj)->tt=LUA_TNIL; }
#define setobj(obj1,obj2) \
{ TObject *o1=(obj1); const TObject *o2=(obj2); \
o1->tt=o2->tt; o1->value = o2->value; }
/*

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@ -1,5 +1,5 @@
/*
** $Id: ltable.c,v 1.62 2000/12/28 12:55:41 roberto Exp roberto $
** $Id: ltable.c,v 1.63 2001/01/10 18:56:11 roberto Exp roberto $
** Lua tables (hash)
** See Copyright Notice in lua.h
*/
@ -143,8 +143,7 @@ void luaH_remove (Hash *t, TObject *key) {
return; /* give up; (to avoid overflow) */
n += t->size;
}
ttype(key) = LUA_TNUMBER;
nvalue(key) = n;
setnvalue(key, n);
LUA_ASSERT(luaH_mainposition(t, key) == mp, "cannot change hash");
}
}
@ -156,7 +155,8 @@ static void setnodevector (lua_State *L, Hash *t, luint32 size) {
lua_error(L, "table overflow");
t->node = luaM_newvector(L, size, Node);
for (i=0; i<(int)size; i++) {
ttype(&t->node[i].key) = ttype(&t->node[i].val) = LUA_TNIL;
setnilvalue(&t->node[i].key);
setnilvalue(&t->node[i].val);
t->node[i].next = NULL;
}
t->size = size;
@ -212,7 +212,7 @@ static void rehash (lua_State *L, Hash *t) {
for (i=0; i<oldsize; i++) {
Node *old = nold+i;
if (ttype(&old->val) != LUA_TNIL)
*luaH_set(L, t, &old->key) = old->val;
setobj(luaH_set(L, t, &old->key), &old->val);
}
luaM_freearray(L, nold, oldsize, Node); /* free old array */
}
@ -243,7 +243,7 @@ static TObject *newkey (lua_State *L, Hash *t, Node *mp, const TObject *key) {
mp = n;
}
}
mp->key = *key;
setobj(&mp->key, key);
for (;;) { /* correct `firstfree' */
if (ttype(&t->firstfree->key) == LUA_TNIL)
return &mp->val; /* OK; table still has a free place */
@ -279,8 +279,7 @@ TObject *luaH_setnum (lua_State *L, Hash *t, lua_Number key) {
else n = n->next;
} while (n);
/* `key' not found; must insert it */
ttype(&kobj) = LUA_TNUMBER;
nvalue(&kobj) = key;
setnvalue(&kobj, key);
return newkey(L, t, mp, &kobj);
}
@ -295,8 +294,7 @@ TObject *luaH_setstr (lua_State *L, Hash *t, TString *key) {
else n = n->next;
} while (n);
/* `key' not found; must insert it */
ttype(&kobj) = LUA_TSTRING;
tsvalue(&kobj) = key;
setsvalue(&kobj, key);
return newkey(L, t, mp, &kobj);
}

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@ -1,5 +1,5 @@
/*
** $Id: ltests.c,v 1.55 2000/12/28 12:55:41 roberto Exp roberto $
** $Id: ltests.c,v 1.56 2001/01/15 16:13:24 roberto Exp roberto $
** Internal Module for Debugging of the Lua Implementation
** See Copyright Notice in lua.h
*/
@ -226,8 +226,7 @@ static int string_query (lua_State *L) {
TString *ts;
int n = 0;
for (ts = tb->hash[s]; ts; ts = ts->nexthash) {
ttype(L->top) = LUA_TSTRING;
tsvalue(L->top) = ts;
setsvalue(L->top, ts);
incr_top;
n++;
}

7
ltm.c
View File

@ -1,5 +1,5 @@
/*
** $Id: ltm.c,v 1.58 2000/12/26 18:46:09 roberto Exp roberto $
** $Id: ltm.c,v 1.59 2000/12/28 12:55:41 roberto Exp roberto $
** Tag methods
** See Copyright Notice in lua.h
*/
@ -129,11 +129,10 @@ LUA_API void lua_gettagmethod (lua_State *L, int t, const char *event) {
e = luaI_checkevent(L, event, t);
checktag(L, t);
if (luaT_validevent(t, e) && luaT_gettm(L, t, e)) {
clvalue(L->top) = luaT_gettm(L, t, e);
ttype(L->top) = LUA_TFUNCTION;
setclvalue(L->top, luaT_gettm(L, t, e));
}
else
ttype(L->top) = LUA_TNIL;
setnilvalue(L->top);
incr_top;
}

143
lvm.c
View File

@ -1,5 +1,5 @@
/*
** $Id: lvm.c,v 1.152 2001/01/11 18:59:32 roberto Exp roberto $
** $Id: lvm.c,v 1.153 2001/01/15 16:13:24 roberto Exp roberto $
** Lua virtual machine
** See Copyright Notice in lua.h
*/
@ -57,8 +57,7 @@ int luaV_tostring (lua_State *L, TObject *obj) { /* LUA_NUMBER */
else {
char s[32]; /* 16 digits, sign, point and \0 (+ some extra...) */
lua_number2str(s, nvalue(obj)); /* convert `s' to number */
tsvalue(obj) = luaS_new(L, s);
ttype(obj) = LUA_TSTRING;
setsvalue(obj, luaS_new(L, s));
return 0;
}
}
@ -89,9 +88,8 @@ static Closure *luaV_closure (lua_State *L, int nelems) {
Closure *c = luaF_newclosure(L, nelems);
L->top -= nelems;
while (nelems--)
c->upvalue[nelems] = *(L->top+nelems);
clvalue(L->top) = c;
ttype(L->top) = LUA_TFUNCTION;
setobj(&c->upvalue[nelems], L->top+nelems);
setclvalue(L->top, c);
incr_top;
return c;
}
@ -133,10 +131,9 @@ const TObject *luaV_gettable (lua_State *L, StkId t) {
}
if (tm != NULL) { /* is there a tag method? */
luaD_checkstack(L, 2);
*(L->top+1) = *(L->top-1); /* key */
*L->top = *t; /* table */
clvalue(L->top-1) = tm; /* tag method */
ttype(L->top-1) = LUA_TFUNCTION;
setobj(L->top+1, L->top-1); /* key */
setobj(L->top, t); /* table */
setclvalue(L->top-1, tm); /* tag method */
L->top += 2;
luaD_call(L, L->top - 3, 1);
return L->top - 1; /* call result */
@ -155,17 +152,17 @@ 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? */
*luaH_set(L, hvalue(t), key) = *(L->top-1); /* do a primitive set */
luaT_gettm(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);
if (tm != NULL) {
luaD_checkstack(L, 3);
*(L->top+2) = *(L->top-1);
*(L->top+1) = *key;
*(L->top) = *t;
clvalue(L->top-1) = tm;
ttype(L->top-1) = LUA_TFUNCTION;
setobj(L->top+2, L->top-1);
setobj(L->top+1, key);
setobj(L->top, t);
setclvalue(L->top-1, tm);
L->top += 3;
luaD_call(L, L->top - 4, 0); /* call `settable' tag method */
}
@ -182,11 +179,9 @@ const TObject *luaV_getglobal (lua_State *L, TString *s) {
return value; /* default behavior */
else { /* tag method */
luaD_checkstack(L, 3);
clvalue(L->top) = tm;
ttype(L->top) = LUA_TFUNCTION;
tsvalue(L->top+1) = s; /* global name */
ttype(L->top+1) = LUA_TSTRING;
*(L->top+2) = *value;
setclvalue(L->top, tm);
setsvalue(L->top+1, s); /* global name */
setobj(L->top+2, value);
L->top += 3;
luaD_call(L, L->top - 3, 1);
return L->top - 1;
@ -197,16 +192,15 @@ 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);
if (tm == NULL) /* no tag methods? */
*oldvalue = *(L->top - 1); /* raw set */
if (tm == NULL) { /* no tag methods? */
setobj(oldvalue, L->top - 1); /* raw set */
}
else { /* call tag method */
luaD_checkstack(L, 3);
*(L->top+2) = *(L->top-1); /* new value */
*(L->top+1) = *oldvalue;
ttype(L->top) = LUA_TSTRING;
tsvalue(L->top) = s;
clvalue(L->top-1) = tm;
ttype(L->top-1) = LUA_TFUNCTION;
setobj(L->top+2, L->top-1); /* new value */
setobj(L->top+1, oldvalue); /* old value */
setsvalue(L->top, s); /* var name */
setclvalue(L->top-1, tm); /* tag method */
L->top += 3;
luaD_call(L, L->top - 4, 0);
}
@ -266,8 +260,8 @@ int luaV_lessthan (lua_State *L, const TObject *l, const TObject *r, StkId top)
return luaV_strlessthan(tsvalue(l), tsvalue(r));
else { /* call TM */
luaD_checkstack(L, 2);
*top++ = *l;
*top++ = *r;
setobj(top++, l);
setobj(top++, r);
if (!call_binTM(L, top, TM_LT))
luaG_ordererror(L, top-2);
L->top--;
@ -301,7 +295,7 @@ void luaV_strconc (lua_State *L, int total, StkId top) {
memcpy(buffer+tl, tsvalue(top-i)->str, l);
tl += l;
}
tsvalue(top-n) = luaS_newlstr(L, buffer, tl);
setsvalue(top-n, luaS_newlstr(L, buffer, tl));
}
total -= n-1; /* got `n' strings to create 1 new */
top -= n-1;
@ -310,18 +304,14 @@ void luaV_strconc (lua_State *L, int total, StkId top) {
static void luaV_pack (lua_State *L, StkId firstelem) {
TObject *nf;
int i;
Hash *htab = luaH_new(L, 0);
for (i=0; firstelem+i<L->top; i++)
*luaH_setnum(L, htab, i+1) = *(firstelem+i);
setobj(luaH_setnum(L, htab, i+1), firstelem+i);
/* store counter in field `n' */
nf = luaH_setstr(L, htab, luaS_newliteral(L, "n"));
ttype(nf) = LUA_TNUMBER;
nvalue(nf) = i;
setnvalue(luaH_setstr(L, htab, luaS_newliteral(L, "n")), i);
L->top = firstelem; /* remove elements from the stack */
ttype(L->top) = LUA_TTABLE;
hvalue(L->top) = htab;
sethvalue(L->top, htab);
incr_top;
}
@ -381,7 +371,7 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
int n = GETARG_U(i);
LUA_ASSERT(n>0, "invalid argument");
do {
ttype(top++) = LUA_TNIL;
setnilvalue(top++);
} while (--n > 0);
break;
}
@ -390,88 +380,74 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
break;
}
case OP_PUSHINT: {
ttype(top) = LUA_TNUMBER;
nvalue(top) = (lua_Number)GETARG_S(i);
top++;
setnvalue(top++, (lua_Number)GETARG_S(i));
break;
}
case OP_PUSHSTRING: {
ttype(top) = LUA_TSTRING;
tsvalue(top) = kstr[GETARG_U(i)];
top++;
setsvalue(top++, kstr[GETARG_U(i)]);
break;
}
case OP_PUSHNUM: {
ttype(top) = LUA_TNUMBER;
nvalue(top) = tf->knum[GETARG_U(i)];
top++;
setnvalue(top++, tf->knum[GETARG_U(i)]);
break;
}
case OP_PUSHNEGNUM: {
ttype(top) = LUA_TNUMBER;
nvalue(top) = -tf->knum[GETARG_U(i)];
top++;
setnvalue(top++, -tf->knum[GETARG_U(i)]);
break;
}
case OP_PUSHUPVALUE: {
*top++ = cl->upvalue[GETARG_U(i)];
setobj(top++, &cl->upvalue[GETARG_U(i)]);
break;
}
case OP_GETLOCAL: {
*top++ = *(base+GETARG_U(i));
setobj(top++, base+GETARG_U(i));
break;
}
case OP_GETGLOBAL: {
L->top = top;
*top = *luaV_getglobal(L, kstr[GETARG_U(i)]);
top++;
setobj(top++, luaV_getglobal(L, kstr[GETARG_U(i)]));
break;
}
case OP_GETTABLE: {
L->top = top;
top--;
*(top-1) = *luaV_gettable(L, top-1);
setobj(top-1, luaV_gettable(L, top-1));
break;
}
case OP_GETDOTTED: {
ttype(top) = LUA_TSTRING;
tsvalue(top) = kstr[GETARG_U(i)];
setsvalue(top, kstr[GETARG_U(i)]);
L->top = top+1;
*(top-1) = *luaV_gettable(L, top-1);
setobj(top-1, luaV_gettable(L, top-1));
break;
}
case OP_GETINDEXED: {
*top = *(base+GETARG_U(i));
setobj(top, base+GETARG_U(i));
L->top = top+1;
*(top-1) = *luaV_gettable(L, top-1);
setobj(top-1, luaV_gettable(L, top-1));
break;
}
case OP_PUSHSELF: {
TObject receiver;
receiver = *(top-1);
ttype(top) = LUA_TSTRING;
tsvalue(top++) = kstr[GETARG_U(i)];
setobj(&receiver, top-1);
setsvalue(top++, kstr[GETARG_U(i)]);
L->top = top;
*(top-2) = *luaV_gettable(L, top-2);
*(top-1) = receiver;
setobj(top-2, luaV_gettable(L, top-2));
setobj(top-1, &receiver);
break;
}
case OP_CREATETABLE: {
L->top = top;
luaC_checkGC(L);
hvalue(top) = luaH_new(L, GETARG_U(i));
ttype(top) = LUA_TTABLE;
top++;
sethvalue(top++, luaH_new(L, GETARG_U(i)));
break;
}
case OP_SETLOCAL: {
*(base+GETARG_U(i)) = *(--top);
setobj(base+GETARG_U(i), --top);
break;
}
case OP_SETGLOBAL: {
L->top = top;
L->top = top--;
luaV_setglobal(L, kstr[GETARG_U(i)]);
top--;
break;
}
case OP_SETTABLE: {
@ -487,7 +463,7 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
Hash *arr = hvalue(top-n-1);
L->top = top-n; /* final value of `top' (in case of errors) */
for (; n; n--)
*luaH_setnum(L, arr, n+aux) = *(--top);
setobj(luaH_setnum(L, arr, n+aux), --top);
break;
}
case OP_SETMAP: {
@ -497,7 +473,7 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
L->top = finaltop; /* final value of `top' (in case of errors) */
for (; n; n--) {
top-=2;
*luaH_set(L, arr, top) = *(top+1);
setobj(luaH_set(L, arr, top), top+1);
}
break;
}
@ -511,8 +487,7 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
}
case OP_ADDI: {
if (tonumber(top-1)) {
ttype(top) = LUA_TNUMBER;
nvalue(top) = (lua_Number)GETARG_S(i);
setnvalue(top, (lua_Number)GETARG_S(i));
call_arith(L, top+1, TM_ADD);
}
else
@ -559,7 +534,7 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
}
case OP_MINUS: {
if (tonumber(top-1)) {
ttype(top) = LUA_TNIL;
setnilvalue(top);
call_arith(L, top+1, TM_UNM);
}
else
@ -625,7 +600,7 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
break;
}
case OP_PUSHNILJMP: {
ttype(top++) = LUA_TNIL;
setnilvalue(top++);
pc++;
break;
}
@ -669,8 +644,8 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
}
else {
top += 2; /* index,value */
*(top-2) = *key(node);
*(top-1) = *val(node);
setobj(top-2, key(node));
setobj(top-1, val(node));
}
break;
}
@ -681,8 +656,8 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
if (node == NULL) /* end loop? */
top -= 3; /* remove table, key, and value */
else {
*(top-2) = *key(node);
*(top-1) = *val(node);
setobj(top-2, key(node));
setobj(top-1, val(node));
dojump(pc, i); /* repeat loop */
}
break;