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authorRoberto Ierusalimschy <roberto@inf.puc-rio.br>2000-10-05 09:14:08 -0300
committerRoberto Ierusalimschy <roberto@inf.puc-rio.br>2000-10-05 09:14:08 -0300
commit001f2bdd0e2f8803889c1b5164b57a51e44aef5b (patch)
treed200cf4d708be3c61e64640c45b47050c9c6a375
parentcd2ddaded97f7f2b2af02cecfd165cf70e6f83f4 (diff)
downloadlua-001f2bdd0e2f8803889c1b5164b57a51e44aef5b.tar.gz
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new definition for types-tags
Diffstat
-rw-r--r--lapi.c77
-rw-r--r--lauxlib.c8
-rw-r--r--lauxlib.h4
-rw-r--r--lbaselib.c4
-rw-r--r--ldebug.c79
-rw-r--r--ldebug.h4
-rw-r--r--ldo.c56
-rw-r--r--lgc.c60
-rw-r--r--lobject.c25
-rw-r--r--lobject.h55
-rw-r--r--lstrlib.c4
-rw-r--r--ltable.c48
-rw-r--r--ltests.c15
-rw-r--r--ltm.c49
-rw-r--r--ltm.h9
-rw-r--r--lua.h23
-rw-r--r--lvm.c112
-rw-r--r--lvm.h6
18 files changed, 307 insertions, 331 deletions
diff --git a/lapi.c b/lapi.c
index 7715c5a2..e9f9078e 100644
--- a/lapi.c
+++ b/lapi.c
@@ -1,5 +1,5 @@
1/* 1/*
2** $Id: lapi.c,v 1.103 2000/10/02 20:10:55 roberto Exp roberto $ 2** $Id: lapi.c,v 1.104 2000/10/03 14:27:44 roberto Exp roberto $
3** Lua API 3** Lua API
4** See Copyright Notice in lua.h 4** See Copyright Notice in lua.h
5*/ 5*/
@@ -116,20 +116,18 @@ void lua_pushvalue (lua_State *L, int index) {
116 return ((test) ? (value) : (default)); } 116 return ((test) ? (value) : (default)); }
117 117
118 118
119lua_Type lua_type (lua_State *L, int index) { 119int lua_type (lua_State *L, int index) {
120 btest(L, index, luaO_type(o), LUA_NOVALUE); 120 btest(L, index, ttype(o), LUA_TNONE);
121} 121}
122 122
123const char *lua_typename (lua_State *L, lua_Type t) { 123const char *lua_typename (lua_State *L, int t) {
124 static const char *const names[] = {
125 "NO VALUE", "userdata", "number", "string", "table", "function", "nil"
126 };
127 UNUSED(L); 124 UNUSED(L);
128 return names[(int)t]; 125 return luaO_typenames[t];
129} 126}
130 127
128
131int lua_iscfunction (lua_State *L, int index) { 129int lua_iscfunction (lua_State *L, int index) {
132 btest(L, index, (ttype(o) == TAG_CCLOSURE), 0); 130 btest(L, index, iscfunction(o), 0);
133} 131}
134 132
135int lua_isnumber (lua_State *L, int index) { 133int lua_isnumber (lua_State *L, int index) {
@@ -137,18 +135,13 @@ int lua_isnumber (lua_State *L, int index) {
137} 135}
138 136
139int lua_isstring (lua_State *L, int index) { 137int lua_isstring (lua_State *L, int index) {
140 lua_Type t = lua_type(L, index); 138 int t = lua_type(L, index);
141 return (t == LUA_TSTRING || t == LUA_TNUMBER); 139 return (t == LUA_TSTRING || t == LUA_TNUMBER);
142} 140}
143 141
144 142
145static int auxtag (const TObject *o) {
146return ((ttype(o) == TAG_USERDATA) ? tsvalue(o)->u.d.tag :
147 (ttype(o) == TAG_TABLE) ? hvalue(o)->htag : (int)ttype(o));
148}
149
150int lua_tag (lua_State *L, int index) { 143int lua_tag (lua_State *L, int index) {
151 btest(L, index, auxtag(o), LUA_NOTAG); 144 btest(L, index, luaT_tag(o), LUA_NOTAG);
152} 145}
153 146
154int lua_equal (lua_State *L, int index1, int index2) { 147int lua_equal (lua_State *L, int index1, int index2) {
@@ -168,7 +161,7 @@ int lua_lessthan (lua_State *L, int index1, int index2) {
168 161
169 162
170double lua_tonumber (lua_State *L, int index) { 163double lua_tonumber (lua_State *L, int index) {
171 access(L, index, (tonumber(o) == 0), 0.0, nvalue(o)); 164 access(L, index, (tonumber(o) == 0), 0, nvalue(o));
172} 165}
173 166
174const char *lua_tostring (lua_State *L, int index) { 167const char *lua_tostring (lua_State *L, int index) {
@@ -180,19 +173,19 @@ size_t lua_strlen (lua_State *L, int index) {
180} 173}
181 174
182lua_CFunction lua_tocfunction (lua_State *L, int index) { 175lua_CFunction lua_tocfunction (lua_State *L, int index) {
183 access(L, index, (ttype(o) == TAG_CCLOSURE), NULL, clvalue(o)->f.c); 176 access(L, index, iscfunction(o), NULL, clvalue(o)->f.c);
184} 177}
185 178
186void *lua_touserdata (lua_State *L, int index) { 179void *lua_touserdata (lua_State *L, int index) {
187 access(L, index, (ttype(o) == TAG_USERDATA), NULL, tsvalue(o)->u.d.value); 180 access(L, index, (ttype(o) == LUA_TUSERDATA), NULL, tsvalue(o)->u.d.value);
188} 181}
189 182
190const void *lua_topointer (lua_State *L, int index) { 183const void *lua_topointer (lua_State *L, int index) {
191 StkId o = Index(L, index); 184 StkId o = Index(L, index);
192 switch (ttype(o)) { 185 switch (ttype(o)) {
193 case TAG_TABLE: 186 case LUA_TTABLE:
194 return hvalue(o); 187 return hvalue(o);
195 case TAG_CCLOSURE: case TAG_LCLOSURE: 188 case LUA_TFUNCTION:
196 return clvalue(o); 189 return clvalue(o);
197 default: return NULL; 190 default: return NULL;
198 } 191 }
@@ -206,13 +199,13 @@ const void *lua_topointer (lua_State *L, int index) {
206 199
207 200
208void lua_pushnil (lua_State *L) { 201void lua_pushnil (lua_State *L) {
209 ttype(L->top) = TAG_NIL; 202 ttype(L->top) = LUA_TNIL;
210 api_incr_top(L); 203 api_incr_top(L);
211} 204}
212 205
213 206
214void lua_pushnumber (lua_State *L, double n) { 207void lua_pushnumber (lua_State *L, double n) {
215 ttype(L->top) = TAG_NUMBER; 208 ttype(L->top) = LUA_TNUMBER;
216 nvalue(L->top) = n; 209 nvalue(L->top) = n;
217 api_incr_top(L); 210 api_incr_top(L);
218} 211}
@@ -220,7 +213,7 @@ void lua_pushnumber (lua_State *L, double n) {
220 213
221void lua_pushlstring (lua_State *L, const char *s, size_t len) { 214void lua_pushlstring (lua_State *L, const char *s, size_t len) {
222 tsvalue(L->top) = luaS_newlstr(L, s, len); 215 tsvalue(L->top) = luaS_newlstr(L, s, len);
223 ttype(L->top) = TAG_STRING; 216 ttype(L->top) = LUA_TSTRING;
224 api_incr_top(L); 217 api_incr_top(L);
225} 218}
226 219
@@ -239,10 +232,10 @@ void lua_pushcclosure (lua_State *L, lua_CFunction fn, int n) {
239 232
240 233
241void lua_pushusertag (lua_State *L, void *u, int tag) { /* ORDER LUA_T */ 234void lua_pushusertag (lua_State *L, void *u, int tag) { /* ORDER LUA_T */
242 if (tag != LUA_ANYTAG && tag != TAG_USERDATA && tag < NUM_TAGS) 235 if (!(tag == LUA_ANYTAG || tag == LUA_TUSERDATA || validtag(tag)))
243 luaO_verror(L, "invalid tag for a userdata (%d)", tag); 236 luaO_verror(L, "invalid tag for a userdata (%d)", tag);
244 tsvalue(L->top) = luaS_createudata(L, u, tag); 237 tsvalue(L->top) = luaS_createudata(L, u, tag);
245 ttype(L->top) = TAG_USERDATA; 238 ttype(L->top) = LUA_TUSERDATA;
246 api_incr_top(L); 239 api_incr_top(L);
247} 240}
248 241
@@ -271,14 +264,14 @@ void lua_gettable (lua_State *L, int index) {
271 264
272void lua_rawget (lua_State *L, int index) { 265void lua_rawget (lua_State *L, int index) {
273 StkId t = Index(L, index); 266 StkId t = Index(L, index);
274 LUA_ASSERT(ttype(t) == TAG_TABLE, "table expected"); 267 LUA_ASSERT(ttype(t) == LUA_TTABLE, "table expected");
275 *(L->top - 1) = *luaH_get(L, hvalue(t), L->top - 1); 268 *(L->top - 1) = *luaH_get(L, hvalue(t), L->top - 1);
276} 269}
277 270
278 271
279void lua_rawgeti (lua_State *L, int index, int n) { 272void lua_rawgeti (lua_State *L, int index, int n) {
280 StkId o = Index(L, index); 273 StkId o = Index(L, index);
281 LUA_ASSERT(ttype(o) == TAG_TABLE, "table expected"); 274 LUA_ASSERT(ttype(o) == LUA_TTABLE, "table expected");
282 *L->top = *luaH_getnum(hvalue(o), n); 275 *L->top = *luaH_getnum(hvalue(o), n);
283 api_incr_top(L); 276 api_incr_top(L);
284} 277}
@@ -286,14 +279,14 @@ void lua_rawgeti (lua_State *L, int index, int n) {
286 279
287void lua_getglobals (lua_State *L) { 280void lua_getglobals (lua_State *L) {
288 hvalue(L->top) = L->gt; 281 hvalue(L->top) = L->gt;
289 ttype(L->top) = TAG_TABLE; 282 ttype(L->top) = LUA_TTABLE;
290 api_incr_top(L); 283 api_incr_top(L);
291} 284}
292 285
293 286
294int lua_getref (lua_State *L, int ref) { 287int lua_getref (lua_State *L, int ref) {
295 if (ref == LUA_REFNIL) 288 if (ref == LUA_REFNIL)
296 ttype(L->top) = TAG_NIL; 289 ttype(L->top) = LUA_TNIL;
297 else if (0 <= ref && ref < L->refSize && 290 else if (0 <= ref && ref < L->refSize &&
298 (L->refArray[ref].st == LOCK || L->refArray[ref].st == HOLD)) 291 (L->refArray[ref].st == LOCK || L->refArray[ref].st == HOLD))
299 *L->top = L->refArray[ref].o; 292 *L->top = L->refArray[ref].o;
@@ -306,7 +299,7 @@ int lua_getref (lua_State *L, int ref) {
306 299
307void lua_newtable (lua_State *L) { 300void lua_newtable (lua_State *L) {
308 hvalue(L->top) = luaH_new(L, 0); 301 hvalue(L->top) = luaH_new(L, 0);
309 ttype(L->top) = TAG_TABLE; 302 ttype(L->top) = LUA_TTABLE;
310 api_incr_top(L); 303 api_incr_top(L);
311} 304}
312 305
@@ -334,7 +327,7 @@ void lua_settable (lua_State *L, int index) {
334 327
335void lua_rawset (lua_State *L, int index) { 328void lua_rawset (lua_State *L, int index) {
336 StkId t = Index(L, index); 329 StkId t = Index(L, index);
337 LUA_ASSERT(ttype(t) == TAG_TABLE, "table expected"); 330 LUA_ASSERT(ttype(t) == LUA_TTABLE, "table expected");
338 *luaH_set(L, hvalue(t), L->top-2) = *(L->top-1); 331 *luaH_set(L, hvalue(t), L->top-2) = *(L->top-1);
339 L->top -= 2; 332 L->top -= 2;
340} 333}
@@ -342,7 +335,7 @@ void lua_rawset (lua_State *L, int index) {
342 335
343void lua_rawseti (lua_State *L, int index, int n) { 336void lua_rawseti (lua_State *L, int index, int n) {
344 StkId o = Index(L, index); 337 StkId o = Index(L, index);
345 LUA_ASSERT(ttype(o) == TAG_TABLE, "table expected"); 338 LUA_ASSERT(ttype(o) == LUA_TTABLE, "table expected");
346 *luaH_setint(L, hvalue(o), n) = *(L->top-1); 339 *luaH_setint(L, hvalue(o), n) = *(L->top-1);
347 L->top--; 340 L->top--;
348} 341}
@@ -350,14 +343,14 @@ void lua_rawseti (lua_State *L, int index, int n) {
350 343
351void lua_setglobals (lua_State *L) { 344void lua_setglobals (lua_State *L) {
352 StkId newtable = --L->top; 345 StkId newtable = --L->top;
353 LUA_ASSERT(ttype(newtable) == TAG_TABLE, "table expected"); 346 LUA_ASSERT(ttype(newtable) == LUA_TTABLE, "table expected");
354 L->gt = hvalue(newtable); 347 L->gt = hvalue(newtable);
355} 348}
356 349
357 350
358int lua_ref (lua_State *L, int lock) { 351int lua_ref (lua_State *L, int lock) {
359 int ref; 352 int ref;
360 if (ttype(L->top-1) == TAG_NIL) 353 if (ttype(L->top-1) == LUA_TNIL)
361 ref = LUA_REFNIL; 354 ref = LUA_REFNIL;
362 else { 355 else {
363 if (L->refFree != NONEXT) { /* is there a free place? */ 356 if (L->refFree != NONEXT) { /* is there a free place? */
@@ -420,15 +413,15 @@ void lua_setgcthreshold (lua_State *L, int newthreshold) {
420void lua_settag (lua_State *L, int tag) { 413void lua_settag (lua_State *L, int tag) {
421 luaT_realtag(L, tag); 414 luaT_realtag(L, tag);
422 switch (ttype(L->top-1)) { 415 switch (ttype(L->top-1)) {
423 case TAG_TABLE: 416 case LUA_TTABLE:
424 hvalue(L->top-1)->htag = tag; 417 hvalue(L->top-1)->htag = tag;
425 break; 418 break;
426 case TAG_USERDATA: 419 case LUA_TUSERDATA:
427 tsvalue(L->top-1)->u.d.tag = tag; 420 tsvalue(L->top-1)->u.d.tag = tag;
428 break; 421 break;
429 default: 422 default:
430 luaO_verror(L, "cannot change the tag of a %.20s", 423 luaO_verror(L, "cannot change the tag of a %.20s",
431 luaO_typename(L, L->top-1)); 424 luaO_typename(L->top-1));
432 } 425 }
433 L->top--; 426 L->top--;
434} 427}
@@ -446,7 +439,7 @@ void lua_unref (lua_State *L, int ref) {
446int lua_next (lua_State *L, int index) { 439int lua_next (lua_State *L, int index) {
447 StkId t = Index(L, index); 440 StkId t = Index(L, index);
448 Node *n; 441 Node *n;
449 LUA_ASSERT(ttype(t) == TAG_TABLE, "table expected"); 442 LUA_ASSERT(ttype(t) == LUA_TTABLE, "table expected");
450 n = luaH_next(L, hvalue(t), Index(L, -1)); 443 n = luaH_next(L, hvalue(t), Index(L, -1));
451 if (n) { 444 if (n) {
452 *(L->top-1) = *key(n); 445 *(L->top-1) = *key(n);
@@ -464,15 +457,15 @@ int lua_next (lua_State *L, int index) {
464int lua_getn (lua_State *L, int index) { 457int lua_getn (lua_State *L, int index) {
465 Hash *h = hvalue(Index(L, index)); 458 Hash *h = hvalue(Index(L, index));
466 const TObject *value = luaH_getstr(h, luaS_new(L, "n")); /* value = h.n */ 459 const TObject *value = luaH_getstr(h, luaS_new(L, "n")); /* value = h.n */
467 if (ttype(value) == TAG_NUMBER) 460 if (ttype(value) == LUA_TNUMBER)
468 return (int)nvalue(value); 461 return (int)nvalue(value);
469 else { 462 else {
470 Number max = 0; 463 Number max = 0;
471 int i = h->size; 464 int i = h->size;
472 Node *n = h->node; 465 Node *n = h->node;
473 while (i--) { 466 while (i--) {
474 if (ttype(key(n)) == TAG_NUMBER && 467 if (ttype(key(n)) == LUA_TNUMBER &&
475 ttype(val(n)) != TAG_NIL && 468 ttype(val(n)) != LUA_TNIL &&
476 nvalue(key(n)) > max) 469 nvalue(key(n)) > max)
477 max = nvalue(key(n)); 470 max = nvalue(key(n));
478 n++; 471 n++;
diff --git a/lauxlib.c b/lauxlib.c
index d6398795..433c24df 100644
--- a/lauxlib.c
+++ b/lauxlib.c
@@ -1,5 +1,5 @@
1/* 1/*
2** $Id: lauxlib.c,v 1.37 2000/09/29 12:40:56 roberto Exp roberto $ 2** $Id: lauxlib.c,v 1.38 2000/10/02 20:10:55 roberto Exp roberto $
3** Auxiliary functions for building Lua libraries 3** Auxiliary functions for building Lua libraries
4** See Copyright Notice in lua.h 4** See Copyright Notice in lua.h
5*/ 5*/
@@ -40,7 +40,7 @@ void luaL_argerror (lua_State *L, int narg, const char *extramsg) {
40} 40}
41 41
42 42
43static void type_error (lua_State *L, int narg, lua_Type t) { 43static void type_error (lua_State *L, int narg, int t) {
44 char buff[100]; 44 char buff[100];
45 const char *rt = lua_typename(L, lua_type(L, narg)); 45 const char *rt = lua_typename(L, lua_type(L, narg));
46 if (*rt == 'N') rt = "no value"; 46 if (*rt == 'N') rt = "no value";
@@ -55,14 +55,14 @@ void luaL_checkstack (lua_State *L, int space, const char *mes) {
55} 55}
56 56
57 57
58void luaL_checktype(lua_State *L, int narg, lua_Type t) { 58void luaL_checktype(lua_State *L, int narg, int t) {
59 if (lua_type(L, narg) != t) 59 if (lua_type(L, narg) != t)
60 type_error(L, narg, t); 60 type_error(L, narg, t);
61} 61}
62 62
63 63
64void luaL_checkany (lua_State *L, int narg) { 64void luaL_checkany (lua_State *L, int narg) {
65 if (lua_type(L, narg) == LUA_NOVALUE) 65 if (lua_type(L, narg) == LUA_TNONE)
66 luaL_argerror(L, narg, "value expected"); 66 luaL_argerror(L, narg, "value expected");
67} 67}
68 68
diff --git a/lauxlib.h b/lauxlib.h
index 54949d86..d94b9bae 100644
--- a/lauxlib.h
+++ b/lauxlib.h
@@ -1,5 +1,5 @@
1/* 1/*
2** $Id: lauxlib.h,v 1.25 2000/09/12 13:48:22 roberto Exp roberto $ 2** $Id: lauxlib.h,v 1.26 2000/10/02 20:10:55 roberto Exp roberto $
3** Auxiliary functions for building Lua libraries 3** Auxiliary functions for building Lua libraries
4** See Copyright Notice in lua.h 4** See Copyright Notice in lua.h
5*/ 5*/
@@ -30,7 +30,7 @@ double luaL_check_number (lua_State *L, int numArg);
30double luaL_opt_number (lua_State *L, int numArg, double def); 30double luaL_opt_number (lua_State *L, int numArg, double def);
31 31
32void luaL_checkstack (lua_State *L, int space, const char *msg); 32void luaL_checkstack (lua_State *L, int space, const char *msg);
33void luaL_checktype (lua_State *L, int narg, lua_Type t); 33void luaL_checktype (lua_State *L, int narg, int t);
34void luaL_checkany (lua_State *L, int narg); 34void luaL_checkany (lua_State *L, int narg);
35 35
36void luaL_verror (lua_State *L, const char *fmt, ...); 36void luaL_verror (lua_State *L, const char *fmt, ...);
diff --git a/lbaselib.c b/lbaselib.c
index 9c1e6f0b..b66cf490 100644
--- a/lbaselib.c
+++ b/lbaselib.c
@@ -1,5 +1,5 @@
1/* 1/*
2** $Id: lbaselib.c,v 1.7 2000/10/02 14:47:43 roberto Exp roberto $ 2** $Id: lbaselib.c,v 1.8 2000/10/02 20:10:55 roberto Exp roberto $
3** Basic library 3** Basic library
4** See Copyright Notice in lua.h 4** See Copyright Notice in lua.h
5*/ 5*/
@@ -322,7 +322,7 @@ static int luaB_tostring (lua_State *L) {
322 case LUA_TNIL: 322 case LUA_TNIL:
323 lua_pushstring(L, "nil"); 323 lua_pushstring(L, "nil");
324 return 1; 324 return 1;
325 case LUA_NOVALUE: 325 default:
326 luaL_argerror(L, 1, "value expected"); 326 luaL_argerror(L, 1, "value expected");
327 } 327 }
328 lua_pushstring(L, buff); 328 lua_pushstring(L, buff);
diff --git a/ldebug.c b/ldebug.c
index cec9f191..8a9a2ca6 100644
--- a/ldebug.c
+++ b/ldebug.c
@@ -1,5 +1,5 @@
1/* 1/*
2** $Id: ldebug.c,v 1.42 2000/09/18 19:39:49 roberto Exp roberto $ 2** $Id: ldebug.c,v 1.43 2000/10/02 20:10:55 roberto Exp roberto $
3** Debug Interface 3** Debug Interface
4** See Copyright Notice in lua.h 4** See Copyright Notice in lua.h
5*/ 5*/
@@ -23,23 +23,21 @@
23#include "luadebug.h" 23#include "luadebug.h"
24 24
25 25
26
26static const char *getfuncname (lua_State *L, StkId f, const char **name); 27static const char *getfuncname (lua_State *L, StkId f, const char **name);
27 28
28 29
29static void setnormalized (TObject *d, const TObject *s) { 30static void setnormalized (TObject *d, const TObject *s) {
30 switch (s->ttype) { 31 if (ttype(s) == LUA_TMARK) {
31 case TAG_CMARK: { 32 clvalue(d) = infovalue(s)->func;
32 clvalue(d) = clvalue(s); 33 ttype(d) = LUA_TFUNCTION;
33 ttype(d) = TAG_CCLOSURE;
34 break;
35 }
36 case TAG_LMARK: {
37 clvalue(d) = infovalue(s)->func;
38 ttype(d) = TAG_LCLOSURE;
39 break;
40 }
41 default: *d = *s;
42 } 34 }
35 else *d = *s;
36}
37
38
39static int isLmark (StkId o) {
40 return (o && ttype(o) == LUA_TMARK && !infovalue(o)->func->isC);
43} 41}
44 42
45 43
@@ -82,9 +80,9 @@ int lua_getstack (lua_State *L, int level, lua_Debug *ar) {
82 80
83static int lua_nups (StkId f) { 81static int lua_nups (StkId f) {
84 switch (ttype(f)) { 82 switch (ttype(f)) {
85 case TAG_LCLOSURE: case TAG_CCLOSURE: case TAG_CMARK: 83 case LUA_TFUNCTION:
86 return clvalue(f)->nupvalues; 84 return clvalue(f)->nupvalues;
87 case TAG_LMARK: 85 case LUA_TMARK:
88 return infovalue(f)->func->nupvalues; 86 return infovalue(f)->func->nupvalues;
89 default: 87 default:
90 return 0; 88 return 0;
@@ -125,13 +123,13 @@ int luaG_getline (int *lineinfo, int pc, int refline, int *prefi) {
125 123
126static int lua_currentpc (StkId f) { 124static int lua_currentpc (StkId f) {
127 CallInfo *ci = infovalue(f); 125 CallInfo *ci = infovalue(f);
128 LUA_ASSERT(ttype(f) == TAG_LMARK, "function has no pc"); 126 LUA_ASSERT(isLmark(f), "function has no pc");
129 return (*ci->pc - ci->func->f.l->code) - 1; 127 return (*ci->pc - ci->func->f.l->code) - 1;
130} 128}
131 129
132 130
133static int lua_currentline (StkId f) { 131static int lua_currentline (StkId f) {
134 if (ttype(f) != TAG_LMARK) 132 if (!isLmark(f))
135 return -1; /* only active lua functions have current-line information */ 133 return -1; /* only active lua functions have current-line information */
136 else { 134 else {
137 CallInfo *ci = infovalue(f); 135 CallInfo *ci = infovalue(f);
@@ -143,7 +141,7 @@ static int lua_currentline (StkId f) {
143 141
144 142
145static Proto *getluaproto (StkId f) { 143static Proto *getluaproto (StkId f) {
146 return (ttype(f) == TAG_LMARK) ? infovalue(f)->func->f.l : NULL; 144 return (isLmark(f) ? infovalue(f)->func->f.l : NULL);
147} 145}
148 146
149 147
@@ -179,22 +177,25 @@ static void infoLproto (lua_Debug *ar, Proto *f) {
179} 177}
180 178
181 179
182static void lua_funcinfo (lua_Debug *ar, StkId func) { 180static void lua_funcinfo (lua_State *L, lua_Debug *ar, StkId func) {
181 Closure *cl = NULL;
183 switch (ttype(func)) { 182 switch (ttype(func)) {
184 case TAG_LCLOSURE: 183 case LUA_TFUNCTION:
185 infoLproto(ar, clvalue(func)->f.l); 184 cl = clvalue(func);
186 break;
187 case TAG_LMARK:
188 infoLproto(ar, infovalue(func)->func->f.l);
189 break; 185 break;
190 case TAG_CCLOSURE: case TAG_CMARK: 186 case LUA_TMARK:
191 ar->source = "(C)"; 187 cl = infovalue(func)->func;
192 ar->linedefined = -1;
193 ar->what = "C";
194 break; 188 break;
195 default: 189 default:
196 LUA_INTERNALERROR("invalid `func' value"); 190 lua_error(L, "value for `lua_getinfo' is not a function");
197 } 191 }
192 if (cl->isC) {
193 ar->source = "(C)";
194 ar->linedefined = -1;
195 ar->what = "C";
196 }
197 else
198 infoLproto(ar, cl->f.l);
198 luaO_chunkid(ar->short_src, ar->source, sizeof(ar->short_src)); 199 luaO_chunkid(ar->short_src, ar->source, sizeof(ar->short_src));
199 if (ar->linedefined == 0) 200 if (ar->linedefined == 0)
200 ar->what = "main"; 201 ar->what = "main";
@@ -218,7 +219,7 @@ static const char *travglobals (lua_State *L, const TObject *o) {
218 int i; 219 int i;
219 for (i=0; i<g->size; i++) { 220 for (i=0; i<g->size; i++) {
220 if (luaO_equalObj(o, val(node(g, i))) && 221 if (luaO_equalObj(o, val(node(g, i))) &&
221 ttype(key(node(g, i))) == TAG_STRING) 222 ttype(key(node(g, i))) == LUA_TSTRING)
222 return tsvalue(key(node(g, i)))->str; 223 return tsvalue(key(node(g, i)))->str;
223 } 224 }
224 return NULL; 225 return NULL;
@@ -250,7 +251,7 @@ int lua_getinfo (lua_State *L, const char *what, lua_Debug *ar) {
250 for (; *what; what++) { 251 for (; *what; what++) {
251 switch (*what) { 252 switch (*what) {
252 case 'S': { 253 case 'S': {
253 lua_funcinfo(ar, func); 254 lua_funcinfo(L, ar, func);
254 break; 255 break;
255 } 256 }
256 case 'l': { 257 case 'l': {
@@ -377,8 +378,8 @@ static Instruction luaG_symbexec (const Proto *pt, int lastpc, int stackpos) {
377 378
378static const char *getobjname (lua_State *L, StkId obj, const char **name) { 379static const char *getobjname (lua_State *L, StkId obj, const char **name) {
379 StkId func = aux_stackedfunction(L, 0, obj); 380 StkId func = aux_stackedfunction(L, 0, obj);
380 if (func == NULL || ttype(func) != TAG_LMARK) 381 if (!isLmark(func))
381 return NULL; /* not a Lua function */ 382 return NULL; /* not an active Lua function */
382 else { 383 else {
383 Proto *p = infovalue(func)->func->f.l; 384 Proto *p = infovalue(func)->func->f.l;
384 int pc = lua_currentpc(func); 385 int pc = lua_currentpc(func);
@@ -409,8 +410,8 @@ static const char *getobjname (lua_State *L, StkId obj, const char **name) {
409 410
410static const char *getfuncname (lua_State *L, StkId f, const char **name) { 411static const char *getfuncname (lua_State *L, StkId f, const char **name) {
411 StkId func = aux_stackedfunction(L, 0, f); /* calling function */ 412 StkId func = aux_stackedfunction(L, 0, f); /* calling function */
412 if (func == NULL || ttype(func) != TAG_LMARK) 413 if (!isLmark(func))
413 return NULL; /* not a Lua function */ 414 return NULL; /* not an active Lua function */
414 else { 415 else {
415 Proto *p = infovalue(func)->func->f.l; 416 Proto *p = infovalue(func)->func->f.l;
416 int pc = lua_currentpc(func); 417 int pc = lua_currentpc(func);
@@ -433,7 +434,7 @@ static const char *getfuncname (lua_State *L, StkId f, const char **name) {
433void luaG_typeerror (lua_State *L, StkId o, const char *op) { 434void luaG_typeerror (lua_State *L, StkId o, const char *op) {
434 const char *name; 435 const char *name;
435 const char *kind = getobjname(L, o, &name); 436 const char *kind = getobjname(L, o, &name);
436 const char *t = luaO_typename(L, o); 437 const char *t = luaO_typename(o);
437 if (kind) 438 if (kind)
438 luaO_verror(L, "attempt to %.30s %.20s `%.40s' (a %.10s value)", 439 luaO_verror(L, "attempt to %.30s %.20s `%.40s' (a %.10s value)",
439 op, kind, name, t); 440 op, kind, name, t);
@@ -442,7 +443,7 @@ void luaG_typeerror (lua_State *L, StkId o, const char *op) {
442} 443}
443 444
444 445
445void luaG_binerror (lua_State *L, StkId p1, lua_Tag t, const char *op) { 446void luaG_binerror (lua_State *L, StkId p1, int t, const char *op) {
446 if (ttype(p1) == t) p1++; 447 if (ttype(p1) == t) p1++;
447 LUA_ASSERT(ttype(p1) != t, "must be an error"); 448 LUA_ASSERT(ttype(p1) != t, "must be an error");
448 luaG_typeerror(L, p1, op); 449 luaG_typeerror(L, p1, op);
@@ -450,8 +451,8 @@ void luaG_binerror (lua_State *L, StkId p1, lua_Tag t, const char *op) {
450 451
451 452
452void luaG_ordererror (lua_State *L, StkId top) { 453void luaG_ordererror (lua_State *L, StkId top) {
453 const char *t1 = luaO_typename(L, top-2); 454 const char *t1 = luaO_typename(top-2);
454 const char *t2 = luaO_typename(L, top-1); 455 const char *t2 = luaO_typename(top-1);
455 if (t1[2] == t2[2]) 456 if (t1[2] == t2[2])
456 luaO_verror(L, "attempt to compare two %.10s values", t1); 457 luaO_verror(L, "attempt to compare two %.10s values", t1);
457 else 458 else
diff --git a/ldebug.h b/ldebug.h
index 94baa17b..dd217513 100644
--- a/ldebug.h
+++ b/ldebug.h
@@ -1,5 +1,5 @@
1/* 1/*
2** $Id: ldebug.h,v 1.5 2000/08/11 16:17:28 roberto Exp roberto $ 2** $Id: ldebug.h,v 1.6 2000/10/02 20:10:55 roberto Exp roberto $
3** Auxiliary functions from Debug Interface module 3** Auxiliary functions from Debug Interface module
4** See Copyright Notice in lua.h 4** See Copyright Notice in lua.h
5*/ 5*/
@@ -13,7 +13,7 @@
13 13
14 14
15void luaG_typeerror (lua_State *L, StkId o, const char *op); 15void luaG_typeerror (lua_State *L, StkId o, const char *op);
16void luaG_binerror (lua_State *L, StkId p1, lua_Tag t, const char *op); 16void luaG_binerror (lua_State *L, StkId p1, int t, const char *op);
17int luaG_getline (int *lineinfo, int pc, int refline, int *refi); 17int luaG_getline (int *lineinfo, int pc, int refline, int *refi);
18void luaG_ordererror (lua_State *L, StkId top); 18void luaG_ordererror (lua_State *L, StkId top);
19 19
diff --git a/ldo.c b/ldo.c
index f9f1d113..281ef22e 100644
--- a/ldo.c
+++ b/ldo.c
@@ -1,5 +1,5 @@
1/* 1/*
2** $Id: ldo.c,v 1.100 2000/10/02 20:10:55 roberto Exp roberto $ 2** $Id: ldo.c,v 1.101 2000/10/04 12:16:08 roberto Exp roberto $
3** Stack and Call structure of Lua 3** Stack and Call structure of Lua
4** See Copyright Notice in lua.h 4** See Copyright Notice in lua.h
5*/ 5*/
@@ -73,7 +73,7 @@ void luaD_adjusttop (lua_State *L, StkId base, int extra) {
73 else { 73 else {
74 luaD_checkstack(L, diff); 74 luaD_checkstack(L, diff);
75 while (diff--) 75 while (diff--)
76 ttype(L->top++) = TAG_NIL; 76 ttype(L->top++) = LUA_TNIL;
77 } 77 }
78} 78}
79 79
@@ -91,7 +91,7 @@ static void luaD_openstack (lua_State *L, StkId pos) {
91static void dohook (lua_State *L, lua_Debug *ar, lua_Hook hook) { 91static void dohook (lua_State *L, lua_Debug *ar, lua_Hook hook) {
92 StkId old_Cbase = L->Cbase; 92 StkId old_Cbase = L->Cbase;
93 StkId old_top = L->Cbase = L->top; 93 StkId old_top = L->Cbase = L->top;
94 luaD_checkstack(L, LUA_MINSTACK); /* assures minimum stack size */ 94 luaD_checkstack(L, LUA_MINSTACK); /* ensure minimum stack size */
95 L->allowhooks = 0; /* cannot call hooks inside a hook */ 95 L->allowhooks = 0; /* cannot call hooks inside a hook */
96 (*hook)(L, ar); 96 (*hook)(L, ar);
97 LUA_ASSERT(L->allowhooks == 0, "invalid allow"); 97 LUA_ASSERT(L->allowhooks == 0, "invalid allow");
@@ -129,7 +129,7 @@ static StkId callCclosure (lua_State *L, const struct Closure *cl, StkId base) {
129 StkId old_Cbase = L->Cbase; 129 StkId old_Cbase = L->Cbase;
130 int n; 130 int n;
131 L->Cbase = base; /* new base for C function */ 131 L->Cbase = base; /* new base for C function */
132 luaD_checkstack(L, nup+LUA_MINSTACK); /* assures minimum stack size */ 132 luaD_checkstack(L, nup+LUA_MINSTACK); /* ensure minimum stack size */
133 for (n=0; n<nup; n++) /* copy upvalues as extra arguments */ 133 for (n=0; n<nup; n++) /* copy upvalues as extra arguments */
134 *(L->top++) = cl->upvalue[n]; 134 *(L->top++) = cl->upvalue[n];
135 if (callhook) 135 if (callhook)
@@ -159,32 +159,26 @@ void luaD_callTM (lua_State *L, const TObject *f, int nParams, int nResults) {
159*/ 159*/
160void luaD_call (lua_State *L, StkId func, int nResults) { 160void luaD_call (lua_State *L, StkId func, int nResults) {
161 StkId firstResult; 161 StkId firstResult;
162 retry: /* for `function' tag method */ 162 CallInfo ci;
163 switch (ttype(func)) { 163 Closure *cl;
164 case TAG_LCLOSURE: { 164 if (ttype(func) != LUA_TFUNCTION) {
165 CallInfo ci; 165 /* `func' is not a function; check the `function' tag method */
166 ci.func = clvalue(func); 166 const TObject *im = luaT_getimbyObj(L, func, IM_FUNCTION);
167 infovalue(func) = &ci; 167 if (ttype(im) == LUA_TNIL)
168 ttype(func) = TAG_LMARK; 168 luaG_typeerror(L, func, "call");
169 firstResult = luaV_execute(L, ci.func, func+1); 169 luaD_openstack(L, func);
170 LUA_ASSERT(ttype(func) == TAG_LMARK, "invalid tag"); 170 *func = *im; /* tag method is the new function to be called */
171 break; 171 LUA_ASSERT(ttype(func) == LUA_TFUNCTION, "invalid tag method");
172 }
173 case TAG_CCLOSURE: {
174 ttype(func) = TAG_CMARK;
175 firstResult = callCclosure(L, clvalue(func), func+1);
176 LUA_ASSERT(ttype(func) == TAG_CMARK, "invalid tag");
177 break;
178 }
179 default: { /* `func' is not a function; check the `function' tag method */
180 const TObject *im = luaT_getimbyObj(L, func, IM_FUNCTION);
181 if (ttype(im) == TAG_NIL)
182 luaG_typeerror(L, func, "call");
183 luaD_openstack(L, func);
184 *func = *im; /* tag method is the new function to be called */
185 goto retry; /* retry the call */
186 }
187 } 172 }
173 cl = clvalue(func);
174 ci.func = cl;
175 infovalue(func) = &ci;
176 ttype(func) = LUA_TMARK;
177 if (cl->isC)
178 firstResult = callCclosure(L, cl, func+1);
179 else
180 firstResult = luaV_execute(L, cl, func+1);
181 LUA_ASSERT(ttype(func) == LUA_TMARK, "invalid tag");
188 /* adjust the number of results */ 182 /* adjust the number of results */
189 if (nResults == LUA_MULTRET) 183 if (nResults == LUA_MULTRET)
190 nResults = L->top - firstResult; 184 nResults = L->top - firstResult;
@@ -250,7 +244,7 @@ static int protectedparser (lua_State *L, ZIO *z, int bin) {
250 old_blocks = L->nblocks; 244 old_blocks = L->nblocks;
251 status = luaD_runprotected(L, f_parser, &p); 245 status = luaD_runprotected(L, f_parser, &p);
252 if (status == 0) { 246 if (status == 0) {
253 /* add new memory to threshould (as it probably will stay) */ 247 /* add new memory to threshold (as it probably will stay) */
254 L->GCthreshold += (L->nblocks - old_blocks); 248 L->GCthreshold += (L->nblocks - old_blocks);
255 } 249 }
256 else if (status == LUA_ERRRUN) /* an error occurred: correct error code */ 250 else if (status == LUA_ERRRUN) /* an error occurred: correct error code */
@@ -331,7 +325,7 @@ struct lua_longjmp {
331 325
332static void message (lua_State *L, const char *s) { 326static void message (lua_State *L, const char *s) {
333 const TObject *em = luaH_getglobal(L, LUA_ERRORMESSAGE); 327 const TObject *em = luaH_getglobal(L, LUA_ERRORMESSAGE);
334 if (luaO_type(em) == LUA_TFUNCTION) { 328 if (ttype(em) == LUA_TFUNCTION) {
335 *L->top = *em; 329 *L->top = *em;
336 incr_top; 330 incr_top;
337 lua_pushstring(L, s); 331 lua_pushstring(L, s);
diff --git a/lgc.c b/lgc.c
index 4ff8bf3c..1aca4e20 100644
--- a/lgc.c
+++ b/lgc.c
@@ -1,5 +1,5 @@
1/* 1/*
2** $Id: lgc.c,v 1.68 2000/09/29 12:42:13 roberto Exp roberto $ 2** $Id: lgc.c,v 1.69 2000/10/02 14:47:43 roberto Exp roberto $
3** Garbage Collector 3** Garbage Collector
4** See Copyright Notice in lua.h 4** See Copyright Notice in lua.h
5*/ 5*/
@@ -24,7 +24,7 @@ typedef struct GCState {
24 24
25 25
26 26
27static int markobject (GCState *st, TObject *o); 27static void markobject (GCState *st, TObject *o);
28 28
29 29
30/* mark a string; marks larger than 1 cannot be changed */ 30/* mark a string; marks larger than 1 cannot be changed */
@@ -73,39 +73,36 @@ static void marktagmethods (lua_State *L, GCState *st) {
73} 73}
74 74
75 75
76static int markobject (GCState *st, TObject *o) { 76static void markclosure (GCState *st, Closure *cl) {
77 if (!ismarked(cl)) {
78 if (!cl->isC)
79 protomark(cl->f.l);
80 cl->mark = st->cmark; /* chain it for later traversal */
81 st->cmark = cl;
82 }
83}
84
85
86static void markobject (GCState *st, TObject *o) {
77 switch (ttype(o)) { 87 switch (ttype(o)) {
78 case TAG_USERDATA: case TAG_STRING: 88 case LUA_TUSERDATA: case LUA_TSTRING:
79 strmark(tsvalue(o)); 89 strmark(tsvalue(o));
80 break; 90 break;
81 case TAG_TABLE: { 91 case LUA_TMARK:
92 markclosure(st, infovalue(o)->func);
93 break;
94 case LUA_TFUNCTION:
95 markclosure(st, clvalue(o));
96 break;
97 case LUA_TTABLE: {
82 if (!ismarked(hvalue(o))) { 98 if (!ismarked(hvalue(o))) {
83 hvalue(o)->mark = st->tmark; /* chain it in list of marked */ 99 hvalue(o)->mark = st->tmark; /* chain it in list of marked */
84 st->tmark = hvalue(o); 100 st->tmark = hvalue(o);
85 } 101 }
86 break; 102 break;
87 } 103 }
88 case TAG_LMARK: {
89 Closure *cl = infovalue(o)->func;
90 if (!ismarked(cl)) {
91 protomark(cl->f.l);
92 cl->mark = st->cmark; /* chain it for later traversal */
93 st->cmark = cl;
94 }
95 break;
96 }
97 case TAG_LCLOSURE:
98 protomark(clvalue(o)->f.l);
99 /* go through */
100 case TAG_CCLOSURE: case TAG_CMARK:
101 if (!ismarked(clvalue(o))) {
102 clvalue(o)->mark = st->cmark; /* chain it for later traversal */
103 st->cmark = clvalue(o);
104 }
105 break;
106 default: break; /* numbers, etc */ 104 default: break; /* numbers, etc */
107 } 105 }
108 return 0;
109} 106}
110 107
111 108
@@ -131,8 +128,8 @@ static void markall (lua_State *L) {
131 st.tmark = h->mark; /* remove it from list */ 128 st.tmark = h->mark; /* remove it from list */
132 for (i=0; i<h->size; i++) { 129 for (i=0; i<h->size; i++) {
133 Node *n = node(h, i); 130 Node *n = node(h, i);
134 if (ttype(key(n)) != TAG_NIL) { 131 if (ttype(key(n)) != LUA_TNIL) {
135 if (ttype(val(n)) == TAG_NIL) 132 if (ttype(val(n)) == LUA_TNIL)
136 luaH_remove(h, key(n)); /* dead element; try to remove it */ 133 luaH_remove(h, key(n)); /* dead element; try to remove it */
137 markobject(&st, &n->key); 134 markobject(&st, &n->key);
138 markobject(&st, &n->val); 135 markobject(&st, &n->val);
@@ -147,11 +144,11 @@ static void markall (lua_State *L) {
147static int hasmark (const TObject *o) { 144static int hasmark (const TObject *o) {
148 /* valid only for locked objects */ 145 /* valid only for locked objects */
149 switch (o->ttype) { 146 switch (o->ttype) {
150 case TAG_STRING: case TAG_USERDATA: 147 case LUA_TSTRING: case LUA_TUSERDATA:
151 return tsvalue(o)->marked; 148 return tsvalue(o)->marked;
152 case TAG_TABLE: 149 case LUA_TTABLE:
153 return ismarked(hvalue(o)); 150 return ismarked(hvalue(o));
154 case TAG_LCLOSURE: case TAG_CCLOSURE: 151 case LUA_TFUNCTION:
155 return ismarked(clvalue(o)); 152 return ismarked(clvalue(o));
156 default: /* number */ 153 default: /* number */
157 return 1; 154 return 1;
@@ -271,7 +268,6 @@ static void collectudata (lua_State *L, int all) {
271 } 268 }
272 else { /* collect */ 269 else { /* collect */
273 int tag = next->u.d.tag; 270 int tag = next->u.d.tag;
274 if (tag > L->last_tag) tag = TAG_USERDATA;
275 *p = next->nexthash; 271 *p = next->nexthash;
276 next->nexthash = L->IMtable[tag].collected; /* chain udata */ 272 next->nexthash = L->IMtable[tag].collected; /* chain udata */
277 L->IMtable[tag].collected = next; 273 L->IMtable[tag].collected = next;
@@ -297,7 +293,7 @@ static void checkMbuffer (lua_State *L) {
297 293
298static void callgcTM (lua_State *L, const TObject *o) { 294static void callgcTM (lua_State *L, const TObject *o) {
299 const TObject *im = luaT_getimbyObj(L, o, IM_GC); 295 const TObject *im = luaT_getimbyObj(L, o, IM_GC);
300 if (ttype(im) != TAG_NIL) { 296 if (ttype(im) != LUA_TNIL) {
301 int oldah = L->allowhooks; 297 int oldah = L->allowhooks;
302 L->allowhooks = 0; /* stop debug hooks during GC tag methods */ 298 L->allowhooks = 0; /* stop debug hooks during GC tag methods */
303 luaD_checkstack(L, 2); 299 luaD_checkstack(L, 2);
@@ -313,7 +309,7 @@ static void callgcTM (lua_State *L, const TObject *o) {
313static void callgcTMudata (lua_State *L) { 309static void callgcTMudata (lua_State *L) {
314 int tag; 310 int tag;
315 TObject o; 311 TObject o;
316 ttype(&o) = TAG_USERDATA; 312 ttype(&o) = LUA_TUSERDATA;
317 L->GCthreshold = 2*L->nblocks; /* avoid GC during tag methods */ 313 L->GCthreshold = 2*L->nblocks; /* avoid GC during tag methods */
318 for (tag=L->last_tag; tag>=0; tag--) { /* for each tag (in reverse order) */ 314 for (tag=L->last_tag; tag>=0; tag--) { /* for each tag (in reverse order) */
319 TString *udata; 315 TString *udata;
diff --git a/lobject.c b/lobject.c
index 8f10ee03..de79dcdc 100644
--- a/lobject.c
+++ b/lobject.c
@@ -1,5 +1,5 @@
1/* 1/*
2** $Id: lobject.c,v 1.50 2000/10/02 20:10:55 roberto Exp roberto $ 2** $Id: lobject.c,v 1.51 2000/10/03 14:03:21 roberto Exp roberto $
3** Some generic functions over Lua objects 3** Some generic functions over Lua objects
4** See Copyright Notice in lua.h 4** See Copyright Notice in lua.h
5*/ 5*/
@@ -18,14 +18,13 @@
18 18
19 19
20 20
21const lua_Type luaO_typearr[] = { /* ORDER LUA_T */ 21const TObject luaO_nilobject = {LUA_TNIL, {NULL}};
22 LUA_TUSERDATA, LUA_TNUMBER, LUA_TSTRING, LUA_TTABLE,
23 LUA_TFUNCTION, LUA_TFUNCTION, LUA_TNIL
24};
25 22
26 23
24const char *const luaO_typenames[] = {
25 "userdata", "nil", "number", "string", "table", "function"
26};
27 27
28const TObject luaO_nilobject = {TAG_NIL, {NULL}};
29 28
30 29
31/* 30/*
@@ -41,17 +40,17 @@ lint32 luaO_power2 (lint32 n) {
41int luaO_equalObj (const TObject *t1, const TObject *t2) { 40int luaO_equalObj (const TObject *t1, const TObject *t2) {
42 if (ttype(t1) != ttype(t2)) return 0; 41 if (ttype(t1) != ttype(t2)) return 0;
43 switch (ttype(t1)) { 42 switch (ttype(t1)) {
44 case TAG_NUMBER: 43 case LUA_TNUMBER:
45 return nvalue(t1) == nvalue(t2); 44 return nvalue(t1) == nvalue(t2);
46 case TAG_STRING: case TAG_USERDATA: 45 case LUA_TSTRING: case LUA_TUSERDATA:
47 return tsvalue(t1) == tsvalue(t2); 46 return tsvalue(t1) == tsvalue(t2);
48 case TAG_TABLE: 47 case LUA_TTABLE:
49 return hvalue(t1) == hvalue(t2); 48 return hvalue(t1) == hvalue(t2);
50 case TAG_CCLOSURE: case TAG_LCLOSURE: 49 case LUA_TFUNCTION:
51 return clvalue(t1) == clvalue(t2); 50 return clvalue(t1) == clvalue(t2);
52 default: 51 default:
53 LUA_ASSERT(ttype(t1) == TAG_NIL, "invalid type"); 52 LUA_ASSERT(ttype(t1) == LUA_TNIL, "invalid type");
54 return 1; /* TAG_NIL */ 53 return 1; /* LUA_TNIL */
55 } 54 }
56} 55}
57 56
@@ -80,7 +79,7 @@ int luaO_str2d (const char *s, Number *result) { /* LUA_NUMBER */
80/* this function needs to handle only '%d' and '%.XXs' formats */ 79/* this function needs to handle only '%d' and '%.XXs' formats */
81void luaO_verror (lua_State *L, const char *fmt, ...) { 80void luaO_verror (lua_State *L, const char *fmt, ...) {
82 va_list argp; 81 va_list argp;
83 char buff[600]; /* to hold formated message */ 82 char buff[600]; /* to hold formatted message */
84 va_start(argp, fmt); 83 va_start(argp, fmt);
85 vsprintf(buff, fmt, argp); 84 vsprintf(buff, fmt, argp);
86 va_end(argp); 85 va_end(argp);
diff --git a/lobject.h b/lobject.h
index d6f667f4..dd7adeda 100644
--- a/lobject.h
+++ b/lobject.h
@@ -1,5 +1,5 @@
1/* 1/*
2** $Id: lobject.h,v 1.77 2000/09/29 12:42:13 roberto Exp roberto $ 2** $Id: lobject.h,v 1.78 2000/10/02 20:10:55 roberto Exp roberto $
3** Type definitions for Lua objects 3** Type definitions for Lua objects
4** See Copyright Notice in lua.h 4** See Copyright Notice in lua.h
5*/ 5*/
@@ -31,41 +31,24 @@
31#endif 31#endif
32 32
33 33
34/* 34/* mark for closures active in the stack */
35** Lua TYPES 35#define LUA_TMARK 6
36** WARNING: if you change the order of this enumeration,
37** grep "ORDER LUA_T"
38*/
39typedef enum {
40 TAG_USERDATA = 0, /* default tag for userdata */
41 TAG_NUMBER, /* fixed tag for numbers */
42 TAG_STRING, /* fixed tag for strings */
43 TAG_TABLE, /* default tag for tables */
44 TAG_LCLOSURE, /* fixed tag for Lua closures */
45 TAG_CCLOSURE, /* fixed tag for C closures */
46 TAG_NIL, /* last "pre-defined" tag */
47
48 TAG_LMARK, /* mark for Lua closures */
49 TAG_CMARK /* mark for C closures */
50 36
51} lua_Tag;
52 37
53/* tags for values visible from Lua == first user-created tag */ 38/* tags for values visible from Lua == first user-created tag */
54#define NUM_TAGS 7 39#define NUM_TAGS 6
55 40
56 41
57/* 42/* check whether `t' is a mark */
58** check whether `t' is a mark 43#define is_T_MARK(t) ((t) == LUA_TMARK)
59*/
60#define is_T_MARK(t) ((t) == TAG_LMARK || (t) == TAG_CMARK)
61 44
62 45
63typedef union { 46typedef union {
64 struct TString *ts; /* TAG_STRING, TAG_USERDATA */ 47 struct TString *ts; /* LUA_TSTRING, LUA_TUSERDATA */
65 struct Closure *cl; /* TAG_[CL]CLOSURE, TAG_CMARK */ 48 struct Closure *cl; /* LUA_TFUNCTION */
66 struct Hash *a; /* TAG_TABLE */ 49 struct Hash *a; /* LUA_TTABLE */
67 struct CallInfo *i; /* TAG_LMARK */ 50 struct CallInfo *i; /* LUA_TLMARK */
68 Number n; /* TAG_NUMBER */ 51 Number n; /* LUA_TNUMBER */
69} Value; 52} Value;
70 53
71 54
@@ -80,7 +63,7 @@ typedef union {
80 63
81 64
82typedef struct lua_TObject { 65typedef struct lua_TObject {
83 lua_Tag ttype; 66 int ttype;
84 Value value; 67 Value value;
85} TObject; 68} TObject;
86 69
@@ -150,11 +133,15 @@ typedef struct Closure {
150 } f; 133 } f;
151 struct Closure *next; 134 struct Closure *next;
152 struct Closure *mark; /* marked closures (point to itself when not marked) */ 135 struct Closure *mark; /* marked closures (point to itself when not marked) */
153 int nupvalues; 136 short isC; /* 0 for Lua functions, 1 for C functions */
137 short nupvalues;
154 TObject upvalue[1]; 138 TObject upvalue[1];
155} Closure; 139} Closure;
156 140
157 141
142#define iscfunction(o) (ttype(o) == LUA_TFUNCTION && clvalue(o)->isC)
143
144
158typedef struct Node { 145typedef struct Node {
159 TObject key; 146 TObject key;
160 TObject val; 147 TObject val;
@@ -189,12 +176,12 @@ typedef struct CallInfo {
189} CallInfo; 176} CallInfo;
190 177
191 178
192extern const lua_Type luaO_typearr[];
193extern const TObject luaO_nilobject; 179extern const TObject luaO_nilobject;
180extern const char *const luaO_typenames[];
181
182
183#define luaO_typename(o) (luaO_typenames[ttype(o)])
194 184
195#define luaO_tag2type(t) (luaO_typearr[(int)(t)])
196#define luaO_type(o) (luaO_tag2type(ttype(o)))
197#define luaO_typename(L, o) (lua_typename(L, luaO_type(o)))
198 185
199lint32 luaO_power2 (lint32 n); 186lint32 luaO_power2 (lint32 n);
200char *luaO_openspace (lua_State *L, size_t n); 187char *luaO_openspace (lua_State *L, size_t n);
diff --git a/lstrlib.c b/lstrlib.c
index 52caae20..c79a4011 100644
--- a/lstrlib.c
+++ b/lstrlib.c
@@ -1,5 +1,5 @@
1/* 1/*
2** $Id: lstrlib.c,v 1.52 2000/09/11 17:38:42 roberto Exp roberto $ 2** $Id: lstrlib.c,v 1.53 2000/09/14 14:09:31 roberto Exp roberto $
3** Standard library for string operations and pattern-matching 3** Standard library for string operations and pattern-matching
4** See Copyright Notice in lua.h 4** See Copyright Notice in lua.h
5*/ 5*/
@@ -525,7 +525,7 @@ static void luaI_addquoted (lua_State *L, luaL_Buffer *b, int arg) {
525 luaL_putchar(b, '"'); 525 luaL_putchar(b, '"');
526} 526}
527 527
528/* maximum size of each formated item (> len(format('%99.99f', -1e308))) */ 528/* maximum size of each formatted item (> len(format('%99.99f', -1e308))) */
529#define MAX_ITEM 512 529#define MAX_ITEM 512
530/* maximum size of each format specification (such as '%-099.99d') */ 530/* maximum size of each format specification (such as '%-099.99d') */
531#define MAX_FORMAT 20 531#define MAX_FORMAT 20
diff --git a/ltable.c b/ltable.c
index 7a732e53..0e0fe772 100644
--- a/ltable.c
+++ b/ltable.c
@@ -1,5 +1,5 @@
1/* 1/*
2** $Id: ltable.c,v 1.55 2000/09/11 20:29:27 roberto Exp roberto $ 2** $Id: ltable.c,v 1.56 2000/09/29 12:42:13 roberto Exp roberto $
3** Lua tables (hash) 3** Lua tables (hash)
4** See Copyright Notice in lua.h 4** See Copyright Notice in lua.h
5*/ 5*/
@@ -31,7 +31,7 @@
31 31
32 32
33 33
34#define TagDefault TAG_TABLE 34#define TagDefault LUA_TTABLE
35 35
36 36
37 37
@@ -42,19 +42,19 @@
42Node *luaH_mainposition (const Hash *t, const TObject *key) { 42Node *luaH_mainposition (const Hash *t, const TObject *key) {
43 unsigned long h; 43 unsigned long h;
44 switch (ttype(key)) { 44 switch (ttype(key)) {
45 case TAG_NUMBER: 45 case LUA_TNUMBER:
46 h = (unsigned long)(long)nvalue(key); 46 h = (unsigned long)(long)nvalue(key);
47 break; 47 break;
48 case TAG_STRING: 48 case LUA_TSTRING:
49 h = tsvalue(key)->u.s.hash; 49 h = tsvalue(key)->u.s.hash;
50 break; 50 break;
51 case TAG_USERDATA: 51 case LUA_TUSERDATA:
52 h = IntPoint(tsvalue(key)); 52 h = IntPoint(tsvalue(key));
53 break; 53 break;
54 case TAG_TABLE: 54 case LUA_TTABLE:
55 h = IntPoint(hvalue(key)); 55 h = IntPoint(hvalue(key));
56 break; 56 break;
57 case TAG_LCLOSURE: case TAG_CCLOSURE: 57 case LUA_TFUNCTION:
58 h = IntPoint(clvalue(key)); 58 h = IntPoint(clvalue(key));
59 break; 59 break;
60 default: 60 default:
@@ -84,7 +84,7 @@ static const TObject *luaH_getany (lua_State *L, const Hash *t,
84const TObject *luaH_getnum (const Hash *t, Number key) { 84const TObject *luaH_getnum (const Hash *t, Number key) {
85 Node *n = &t->node[(unsigned long)(long)key&(t->size-1)]; 85 Node *n = &t->node[(unsigned long)(long)key&(t->size-1)];
86 do { 86 do {
87 if (ttype(&n->key) == TAG_NUMBER && nvalue(&n->key) == key) 87 if (ttype(&n->key) == LUA_TNUMBER && nvalue(&n->key) == key)
88 return &n->val; 88 return &n->val;
89 n = n->next; 89 n = n->next;
90 } while (n); 90 } while (n);
@@ -96,7 +96,7 @@ const TObject *luaH_getnum (const Hash *t, Number key) {
96const TObject *luaH_getstr (const Hash *t, TString *key) { 96const TObject *luaH_getstr (const Hash *t, TString *key) {
97 Node *n = &t->node[key->u.s.hash&(t->size-1)]; 97 Node *n = &t->node[key->u.s.hash&(t->size-1)];
98 do { 98 do {
99 if (ttype(&n->key) == TAG_STRING && tsvalue(&n->key) == key) 99 if (ttype(&n->key) == LUA_TSTRING && tsvalue(&n->key) == key)
100 return &n->val; 100 return &n->val;
101 n = n->next; 101 n = n->next;
102 } while (n); 102 } while (n);
@@ -106,8 +106,8 @@ const TObject *luaH_getstr (const Hash *t, TString *key) {
106 106
107const TObject *luaH_get (lua_State *L, const Hash *t, const TObject *key) { 107const TObject *luaH_get (lua_State *L, const Hash *t, const TObject *key) {
108 switch (ttype(key)) { 108 switch (ttype(key)) {
109 case TAG_NUMBER: return luaH_getnum(t, nvalue(key)); 109 case LUA_TNUMBER: return luaH_getnum(t, nvalue(key));
110 case TAG_STRING: return luaH_getstr(t, tsvalue(key)); 110 case LUA_TSTRING: return luaH_getstr(t, tsvalue(key));
111 default: return luaH_getany(L, t, key); 111 default: return luaH_getany(L, t, key);
112 } 112 }
113} 113}
@@ -115,7 +115,7 @@ const TObject *luaH_get (lua_State *L, const Hash *t, const TObject *key) {
115 115
116Node *luaH_next (lua_State *L, const Hash *t, const TObject *key) { 116Node *luaH_next (lua_State *L, const Hash *t, const TObject *key) {
117 int i; 117 int i;
118 if (ttype(key) == TAG_NIL) 118 if (ttype(key) == LUA_TNIL)
119 i = 0; /* first iteration */ 119 i = 0; /* first iteration */
120 else { 120 else {
121 const TObject *v = luaH_get(L, t, key); 121 const TObject *v = luaH_get(L, t, key);
@@ -126,7 +126,7 @@ Node *luaH_next (lua_State *L, const Hash *t, const TObject *key) {
126 } 126 }
127 for (; i<t->size; i++) { 127 for (; i<t->size; i++) {
128 Node *n = node(t, i); 128 Node *n = node(t, i);
129 if (ttype(val(n)) != TAG_NIL) 129 if (ttype(val(n)) != LUA_TNIL)
130 return n; 130 return n;
131 } 131 }
132 return NULL; /* no more elements */ 132 return NULL; /* no more elements */
@@ -138,8 +138,8 @@ Node *luaH_next (lua_State *L, const Hash *t, const TObject *key) {
138** hash, change `key' for a number with the same hash. 138** hash, change `key' for a number with the same hash.
139*/ 139*/
140void luaH_remove (Hash *t, TObject *key) { 140void luaH_remove (Hash *t, TObject *key) {
141 if (ttype(key) == TAG_NUMBER || 141 if (ttype(key) == LUA_TNUMBER ||
142 (ttype(key) == TAG_STRING && tsvalue(key)->u.s.len <= 30)) 142 (ttype(key) == LUA_TSTRING && tsvalue(key)->u.s.len <= 30))
143 return; /* do not remove numbers nor small strings */ 143 return; /* do not remove numbers nor small strings */
144 else { 144 else {
145 /* try to find a number `n' with the same hash as `key' */ 145 /* try to find a number `n' with the same hash as `key' */
@@ -151,7 +151,7 @@ void luaH_remove (Hash *t, TObject *key) {
151 return; /* give up; (to avoid overflow) */ 151 return; /* give up; (to avoid overflow) */
152 n += t->size; 152 n += t->size;
153 } 153 }
154 ttype(key) = TAG_NUMBER; 154 ttype(key) = LUA_TNUMBER;
155 nvalue(key) = n; 155 nvalue(key) = n;
156 LUA_ASSERT(luaH_mainposition(t, key) == mp, "cannot change hash"); 156 LUA_ASSERT(luaH_mainposition(t, key) == mp, "cannot change hash");
157 } 157 }
@@ -164,7 +164,7 @@ static void setnodevector (lua_State *L, Hash *t, lint32 size) {
164 lua_error(L, "table overflow"); 164 lua_error(L, "table overflow");
165 t->node = luaM_newvector(L, size, Node); 165 t->node = luaM_newvector(L, size, Node);
166 for (i=0; i<(int)size; i++) { 166 for (i=0; i<(int)size; i++) {
167 ttype(&t->node[i].key) = ttype(&t->node[i].val) = TAG_NIL; 167 ttype(&t->node[i].key) = ttype(&t->node[i].val) = LUA_TNIL;
168 t->node[i].next = NULL; 168 t->node[i].next = NULL;
169 } 169 }
170 L->nblocks += gcsize(L, size) - gcsize(L, t->size); 170 L->nblocks += gcsize(L, size) - gcsize(L, t->size);
@@ -200,7 +200,7 @@ static int numuse (const Hash *t) {
200 int realuse = 0; 200 int realuse = 0;
201 int i; 201 int i;
202 for (i=0; i<size; i++) { 202 for (i=0; i<size; i++) {
203 if (ttype(&v[i].val) != TAG_NIL) 203 if (ttype(&v[i].val) != LUA_TNIL)
204 realuse++; 204 realuse++;
205 } 205 }
206 return realuse; 206 return realuse;
@@ -222,7 +222,7 @@ static void rehash (lua_State *L, Hash *t) {
222 setnodevector(L, t, oldsize); 222 setnodevector(L, t, oldsize);
223 for (i=0; i<oldsize; i++) { 223 for (i=0; i<oldsize; i++) {
224 Node *old = nold+i; 224 Node *old = nold+i;
225 if (ttype(&old->val) != TAG_NIL) 225 if (ttype(&old->val) != LUA_TNIL)
226 *luaH_set(L, t, &old->key) = old->val; 226 *luaH_set(L, t, &old->key) = old->val;
227 } 227 }
228 luaM_free(L, nold); /* free old array */ 228 luaM_free(L, nold); /* free old array */
@@ -248,7 +248,7 @@ TObject *luaH_set (lua_State *L, Hash *t, const TObject *key) {
248 else n = n->next; 248 else n = n->next;
249 } while (n); 249 } while (n);
250 /* `key' not found; must insert it */ 250 /* `key' not found; must insert it */
251 if (ttype(&mp->key) != TAG_NIL) { /* main position is not free? */ 251 if (ttype(&mp->key) != LUA_TNIL) { /* main position is not free? */
252 Node *othern; /* main position of colliding node */ 252 Node *othern; /* main position of colliding node */
253 n = t->firstfree; /* get a free place */ 253 n = t->firstfree; /* get a free place */
254 /* is colliding node out of its main position? (can only happens if 254 /* is colliding node out of its main position? (can only happens if
@@ -269,7 +269,7 @@ TObject *luaH_set (lua_State *L, Hash *t, const TObject *key) {
269 } 269 }
270 mp->key = *key; 270 mp->key = *key;
271 for (;;) { /* correct `firstfree' */ 271 for (;;) { /* correct `firstfree' */
272 if (ttype(&t->firstfree->key) == TAG_NIL) 272 if (ttype(&t->firstfree->key) == LUA_TNIL)
273 return &mp->val; /* OK; table still has a free place */ 273 return &mp->val; /* OK; table still has a free place */
274 else if (t->firstfree == t->node) break; /* cannot decrement from here */ 274 else if (t->firstfree == t->node) break; /* cannot decrement from here */
275 else (t->firstfree)--; 275 else (t->firstfree)--;
@@ -281,7 +281,7 @@ TObject *luaH_set (lua_State *L, Hash *t, const TObject *key) {
281 281
282TObject *luaH_setint (lua_State *L, Hash *t, int key) { 282TObject *luaH_setint (lua_State *L, Hash *t, int key) {
283 TObject index; 283 TObject index;
284 ttype(&index) = TAG_NUMBER; 284 ttype(&index) = LUA_TNUMBER;
285 nvalue(&index) = key; 285 nvalue(&index) = key;
286 return luaH_set(L, t, &index); 286 return luaH_set(L, t, &index);
287} 287}
@@ -289,10 +289,10 @@ TObject *luaH_setint (lua_State *L, Hash *t, int key) {
289 289
290void luaH_setstrnum (lua_State *L, Hash *t, TString *key, Number val) { 290void luaH_setstrnum (lua_State *L, Hash *t, TString *key, Number val) {
291 TObject *value, index; 291 TObject *value, index;
292 ttype(&index) = TAG_STRING; 292 ttype(&index) = LUA_TSTRING;
293 tsvalue(&index) = key; 293 tsvalue(&index) = key;
294 value = luaH_set(L, t, &index); 294 value = luaH_set(L, t, &index);
295 ttype(value) = TAG_NUMBER; 295 ttype(value) = LUA_TNUMBER;
296 nvalue(value) = val; 296 nvalue(value) = val;
297} 297}
298 298
diff --git a/ltests.c b/ltests.c
index 70cbd78f..5ceebcb5 100644
--- a/ltests.c
+++ b/ltests.c
@@ -1,5 +1,5 @@
1/* 1/*
2** $Id: ltests.c,v 1.46 2000/10/02 14:47:43 roberto Exp roberto $ 2** $Id: ltests.c,v 1.47 2000/10/02 20:10:55 roberto Exp roberto $
3** Internal Module for Debugging of the Lua Implementation 3** Internal Module for Debugging of the Lua Implementation
4** See Copyright Notice in lua.h 4** See Copyright Notice in lua.h
5*/ 5*/
@@ -93,7 +93,8 @@ static int listcode (lua_State *L) {
93 int pc; 93 int pc;
94 Proto *p; 94 Proto *p;
95 int res; 95 int res;
96 luaL_arg_check(L, lua_tag(L, 1) == TAG_LCLOSURE, 1, "Lua function expected"); 96 luaL_arg_check(L, lua_isfunction(L, 1) && !lua_iscfunction(L, 1),
97 1, "Lua function expected");
97 p = clvalue(luaA_index(L, 1))->f.l; 98 p = clvalue(luaA_index(L, 1))->f.l;
98 lua_newtable(L); 99 lua_newtable(L);
99 setnameval(L, "maxstack", p->maxstacksize); 100 setnameval(L, "maxstack", p->maxstacksize);
@@ -111,7 +112,8 @@ static int listcode (lua_State *L) {
111static int liststrings (lua_State *L) { 112static int liststrings (lua_State *L) {
112 Proto *p; 113 Proto *p;
113 int i; 114 int i;
114 luaL_arg_check(L, lua_tag(L, 1) == TAG_LCLOSURE, 1, "Lua function expected"); 115 luaL_arg_check(L, lua_isfunction(L, 1) && !lua_iscfunction(L, 1),
116 1, "Lua function expected");
115 p = clvalue(luaA_index(L, 1))->f.l; 117 p = clvalue(luaA_index(L, 1))->f.l;
116 lua_newtable(L); 118 lua_newtable(L);
117 for (i=0; i<p->nkstr; i++) { 119 for (i=0; i<p->nkstr; i++) {
@@ -128,7 +130,8 @@ static int listlocals (lua_State *L) {
128 int pc = luaL_check_int(L, 2) - 1; 130 int pc = luaL_check_int(L, 2) - 1;
129 int i = 0; 131 int i = 0;
130 const char *name; 132 const char *name;
131 luaL_arg_check(L, lua_tag(L, 1) == TAG_LCLOSURE, 1, "Lua function expected"); 133 luaL_arg_check(L, lua_isfunction(L, 1) && !lua_iscfunction(L, 1),
134 1, "Lua function expected");
132 p = clvalue(luaA_index(L, 1))->f.l; 135 p = clvalue(luaA_index(L, 1))->f.l;
133 while ((name = luaF_getlocalname(p, ++i, pc)) != NULL) 136 while ((name = luaF_getlocalname(p, ++i, pc)) != NULL)
134 lua_pushstring(L, name); 137 lua_pushstring(L, name);
@@ -177,7 +180,7 @@ static int mem_query (lua_State *L) {
177 180
178static int hash_query (lua_State *L) { 181static int hash_query (lua_State *L) {
179 if (lua_isnull(L, 2)) { 182 if (lua_isnull(L, 2)) {
180 luaL_arg_check(L, lua_tag(L, 1) == TAG_STRING, 1, "string expected"); 183 luaL_arg_check(L, lua_tag(L, 1) == LUA_TSTRING, 1, "string expected");
181 lua_pushnumber(L, tsvalue(luaA_index(L, 1))->u.s.hash); 184 lua_pushnumber(L, tsvalue(luaA_index(L, 1))->u.s.hash);
182 } 185 }
183 else { 186 else {
@@ -226,7 +229,7 @@ static int string_query (lua_State *L) {
226 TString *ts; 229 TString *ts;
227 int n = 0; 230 int n = 0;
228 for (ts = tb->hash[s]; ts; ts = ts->nexthash) { 231 for (ts = tb->hash[s]; ts; ts = ts->nexthash) {
229 ttype(L->top) = TAG_STRING; 232 ttype(L->top) = LUA_TSTRING;
230 tsvalue(L->top) = ts; 233 tsvalue(L->top) = ts;
231 incr_top; 234 incr_top;
232 n++; 235 n++;
diff --git a/ltm.c b/ltm.c
index b009e8b4..1dfc8a72 100644
--- a/ltm.c
+++ b/ltm.c
@@ -1,5 +1,5 @@
1/* 1/*
2** $Id: ltm.c,v 1.51 2000/10/02 20:10:55 roberto Exp roberto $ 2** $Id: ltm.c,v 1.52 2000/10/03 14:27:44 roberto Exp roberto $
3** Tag methods 3** Tag methods
4** See Copyright Notice in lua.h 4** See Copyright Notice in lua.h
5*/ 5*/
@@ -38,7 +38,7 @@ static int luaI_checkevent (lua_State *L, const char *name, int t) {
38 int e = findevent(name); 38 int e = findevent(name);
39 if (e >= IM_N) 39 if (e >= IM_N)
40 luaO_verror(L, "event `%.50s' is deprecated", name); 40 luaO_verror(L, "event `%.50s' is deprecated", name);
41 if (e == IM_GC && t == TAG_TABLE) 41 if (e == IM_GC && t == LUA_TTABLE)
42 luaO_verror(L, "event `gc' for tables is deprecated"); 42 luaO_verror(L, "event `gc' for tables is deprecated");
43 if (e < 0) 43 if (e < 0)
44 luaO_verror(L, "`%.50s' is not a valid event name", name); 44 luaO_verror(L, "`%.50s' is not a valid event name", name);
@@ -47,29 +47,28 @@ static int luaI_checkevent (lua_State *L, const char *name, int t) {
47 47
48 48
49 49
50/* events in TAG_NIL are all allowed, since this is used as a 50/* events in LUA_TNIL are all allowed, since this is used as a
51* 'placeholder' for "default" fallbacks 51* 'placeholder' for "default" fallbacks
52*/ 52*/
53/* ORDER LUA_T, ORDER IM */ 53/* ORDER LUA_T, ORDER IM */
54static const char luaT_validevents[NUM_TAGS][IM_N] = { 54static const char luaT_validevents[NUM_TAGS][IM_N] = {
55 {1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1}, /* TAG_USERDATA */ 55 {1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1}, /* LUA_TUSERDATA */
56 {1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1}, /* TAG_NUMBER */ 56 {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, /* LUA_TNIL */
57 {1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1}, /* TAG_STRING */ 57 {1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1}, /* LUA_TNUMBER */
58 {0, 0, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1}, /* TAG_TABLE */ 58 {1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1}, /* LUA_TSTRING */
59 {1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0}, /* TAG_LCLOSURE */ 59 {0, 0, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1}, /* LUA_TTABLE */
60 {1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0}, /* TAG_CCLOSURE */ 60 {1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0} /* LUA_TFUNCTION */
61 {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} /* TAG_NIL */
62}; 61};
63 62
64int luaT_validevent (int t, int e) { /* ORDER LUA_T */ 63int luaT_validevent (int t, int e) { /* ORDER LUA_T */
65 return (t > TAG_NIL) ? 1 : luaT_validevents[t][e]; 64 return (t >= NUM_TAGS) ? 1 : luaT_validevents[t][e];
66} 65}
67 66
68 67
69static void init_entry (lua_State *L, int tag) { 68static void init_entry (lua_State *L, int tag) {
70 int i; 69 int i;
71 for (i=0; i<IM_N; i++) 70 for (i=0; i<IM_N; i++)
72 ttype(luaT_getim(L, tag, i)) = TAG_NIL; 71 ttype(luaT_getim(L, tag, i)) = LUA_TNIL;
73 L->IMtable[tag].collected = NULL; 72 L->IMtable[tag].collected = NULL;
74} 73}
75 74
@@ -100,7 +99,7 @@ static void checktag (lua_State *L, int tag) {
100} 99}
101 100
102void luaT_realtag (lua_State *L, int tag) { 101void luaT_realtag (lua_State *L, int tag) {
103 if (!(NUM_TAGS <= tag && tag <= L->last_tag)) 102 if (!validtag(tag))
104 luaO_verror(L, "tag %d was not created by `newtag'", tag); 103 luaO_verror(L, "tag %d was not created by `newtag'", tag);
105} 104}
106 105
@@ -117,20 +116,12 @@ int lua_copytagmethods (lua_State *L, int tagto, int tagfrom) {
117} 116}
118 117
119 118
120const TObject *luaT_gettagmethods (lua_State *L, const TObject *o) { 119int luaT_tag (const TObject *o) {
121 lua_Tag t = ttype(o); 120 int t = ttype(o);
122 switch (t) { 121 switch (t) {
123 case TAG_USERDATA: { 122 case LUA_TUSERDATA: return tsvalue(o)->u.d.tag;
124 int tag = tsvalue(o)->u.d.tag; 123 case LUA_TTABLE: return hvalue(o)->htag;
125 if (tag > L->last_tag) 124 default: return t;
126 return L->IMtable[TAG_USERDATA].int_method;
127 else
128 return L->IMtable[tag].int_method;
129 }
130 case TAG_TABLE:
131 return L->IMtable[hvalue(o)->htag].int_method;
132 default:
133 return L->IMtable[(int)t].int_method;;
134 } 125 }
135} 126}
136 127
@@ -142,7 +133,7 @@ void lua_gettagmethod (lua_State *L, int t, const char *event) {
142 if (luaT_validevent(t, e)) 133 if (luaT_validevent(t, e))
143 *L->top = *luaT_getim(L, t,e); 134 *L->top = *luaT_getim(L, t,e);
144 else 135 else
145 ttype(L->top) = TAG_NIL; 136 ttype(L->top) = LUA_TNIL;
146 incr_top; 137 incr_top;
147} 138}
148 139
@@ -156,8 +147,8 @@ void lua_settagmethod (lua_State *L, int t, const char *event) {
156 checktag(L, t); 147 checktag(L, t);
157 if (!luaT_validevent(t, e)) 148 if (!luaT_validevent(t, e))
158 luaO_verror(L, "cannot change `%.20s' tag method for type `%.20s'%.20s", 149 luaO_verror(L, "cannot change `%.20s' tag method for type `%.20s'%.20s",
159 luaT_eventname[e], lua_typename(L, luaO_tag2type(t)), 150 luaT_eventname[e], luaO_typenames[t],
160 (t == TAG_TABLE || t == TAG_USERDATA) ? " with default tag" 151 (t == LUA_TTABLE || t == LUA_TUSERDATA) ? " with default tag"
161 : ""); 152 : "");
162 temp = *(L->top - 1); 153 temp = *(L->top - 1);
163 *(L->top - 1) = *luaT_getim(L, t,e); 154 *(L->top - 1) = *luaT_getim(L, t,e);
diff --git a/ltm.h b/ltm.h
index 22974dc5..c6de9e36 100644
--- a/ltm.h
+++ b/ltm.h
@@ -1,5 +1,5 @@
1/* 1/*
2** $Id: ltm.h,v 1.15 2000/09/05 19:33:32 roberto Exp roberto $ 2** $Id: ltm.h,v 1.16 2000/10/03 14:27:44 roberto Exp roberto $
3** Tag methods 3** Tag methods
4** See Copyright Notice in lua.h 4** See Copyright Notice in lua.h
5*/ 5*/
@@ -42,14 +42,17 @@ struct IM {
42 42
43 43
44#define luaT_getim(L,tag,event) (&L->IMtable[tag].int_method[event]) 44#define luaT_getim(L,tag,event) (&L->IMtable[tag].int_method[event])
45#define luaT_getimbyObj(L,o,e) (&luaT_gettagmethods((L),(o))[e]) 45#define luaT_getimbyObj(L,o,e) (luaT_getim((L),luaT_tag(o),(e)))
46
47
48#define validtag(t) (NUM_TAGS <= (t) && (t) <= L->last_tag)
46 49
47extern const char *const luaT_eventname[]; 50extern const char *const luaT_eventname[];
48 51
49 52
50void luaT_init (lua_State *L); 53void luaT_init (lua_State *L);
51void luaT_realtag (lua_State *L, int tag); 54void luaT_realtag (lua_State *L, int tag);
52const TObject *luaT_gettagmethods (lua_State *L, const TObject *o); 55int luaT_tag (const TObject *o);
53int luaT_validevent (int t, int e); /* used by compatibility module */ 56int luaT_validevent (int t, int e); /* used by compatibility module */
54 57
55 58
diff --git a/lua.h b/lua.h
index 5257ecc9..0855c45a 100644
--- a/lua.h
+++ b/lua.h
@@ -1,5 +1,5 @@
1/* 1/*
2** $Id: lua.h,v 1.71 2000/10/02 14:47:43 roberto Exp roberto $ 2** $Id: lua.h,v 1.72 2000/10/02 20:10:55 roberto Exp roberto $
3** Lua - An Extensible Extension Language 3** Lua - An Extensible Extension Language
4** TeCGraf: Grupo de Tecnologia em Computacao Grafica, PUC-Rio, Brazil 4** TeCGraf: Grupo de Tecnologia em Computacao Grafica, PUC-Rio, Brazil
5** e-mail: lua@tecgraf.puc-rio.br 5** e-mail: lua@tecgraf.puc-rio.br
@@ -47,11 +47,17 @@ typedef struct lua_State lua_State;
47 47
48typedef int (*lua_CFunction) (lua_State *L); 48typedef int (*lua_CFunction) (lua_State *L);
49 49
50/*
51** types returned by `lua_type'
52*/
53#define LUA_TNONE (-1)
50 54
51typedef enum lua_Type { 55#define LUA_TUSERDATA 0
52 LUA_NOVALUE, LUA_TUSERDATA, LUA_TNUMBER, LUA_TSTRING, 56#define LUA_TNIL 1
53 LUA_TTABLE, LUA_TFUNCTION, LUA_TNIL 57#define LUA_TNUMBER 2
54} lua_Type; 58#define LUA_TSTRING 3
59#define LUA_TTABLE 4
60#define LUA_TFUNCTION 5
55 61
56 62
57 63
@@ -77,8 +83,8 @@ int lua_stackspace (lua_State *L);
77** access functions (stack -> C) 83** access functions (stack -> C)
78*/ 84*/
79 85
80lua_Type lua_type (lua_State *L, int index); 86int lua_type (lua_State *L, int index);
81const char *lua_typename (lua_State *L, lua_Type t); 87const char *lua_typename (lua_State *L, int t);
82int lua_isnumber (lua_State *L, int index); 88int lua_isnumber (lua_State *L, int index);
83int lua_isstring (lua_State *L, int index); 89int lua_isstring (lua_State *L, int index);
84int lua_iscfunction (lua_State *L, int index); 90int lua_iscfunction (lua_State *L, int index);
@@ -184,7 +190,7 @@ void lua_concat (lua_State *L, int n);
184#define lua_istable(L,n) (lua_type(L,n) == LUA_TTABLE) 190#define lua_istable(L,n) (lua_type(L,n) == LUA_TTABLE)
185#define lua_isuserdata(L,n) (lua_type(L,n) == LUA_TUSERDATA) 191#define lua_isuserdata(L,n) (lua_type(L,n) == LUA_TUSERDATA)
186#define lua_isnil(L,n) (lua_type(L,n) == LUA_TNIL) 192#define lua_isnil(L,n) (lua_type(L,n) == LUA_TNIL)
187#define lua_isnull(L,n) (lua_type(L,n) == LUA_NOVALUE) 193#define lua_isnull(L,n) (lua_type(L,n) == LUA_TNONE)
188 194
189#endif 195#endif
190 196
@@ -224,3 +230,4 @@ void lua_concat (lua_State *L, int n);
224* 230*
225* This implementation contains no third-party code. 231* This implementation contains no third-party code.
226******************************************************************************/ 232******************************************************************************/
233
diff --git a/lvm.c b/lvm.c
index 98b87ce3..7b33be14 100644
--- a/lvm.c
+++ b/lvm.c
@@ -1,5 +1,5 @@
1/* 1/*
2** $Id: lvm.c,v 1.141 2000/10/03 14:27:44 roberto Exp roberto $ 2** $Id: lvm.c,v 1.142 2000/10/04 12:16:08 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*/
@@ -40,25 +40,25 @@
40 40
41 41
42int luaV_tonumber (TObject *obj) { 42int luaV_tonumber (TObject *obj) {
43 if (ttype(obj) != TAG_STRING) 43 if (ttype(obj) != LUA_TSTRING)
44 return 1; 44 return 1;
45 else { 45 else {
46 if (!luaO_str2d(svalue(obj), &nvalue(obj))) 46 if (!luaO_str2d(svalue(obj), &nvalue(obj)))
47 return 2; 47 return 2;
48 ttype(obj) = TAG_NUMBER; 48 ttype(obj) = LUA_TNUMBER;
49 return 0; 49 return 0;
50 } 50 }
51} 51}
52 52
53 53
54int luaV_tostring (lua_State *L, TObject *obj) { /* LUA_NUMBER */ 54int luaV_tostring (lua_State *L, TObject *obj) { /* LUA_NUMBER */
55 if (ttype(obj) != TAG_NUMBER) 55 if (ttype(obj) != LUA_TNUMBER)
56 return 1; 56 return 1;
57 else { 57 else {
58 char s[32]; /* 16 digits, sign, point and \0 (+ some extra...) */ 58 char s[32]; /* 16 digits, sign, point and \0 (+ some extra...) */
59 lua_number2str(s, nvalue(obj)); /* convert `s' to number */ 59 lua_number2str(s, nvalue(obj)); /* convert `s' to number */
60 tsvalue(obj) = luaS_new(L, s); 60 tsvalue(obj) = luaS_new(L, s);
61 ttype(obj) = TAG_STRING; 61 ttype(obj) = LUA_TSTRING;
62 return 0; 62 return 0;
63 } 63 }
64} 64}
@@ -85,27 +85,29 @@ static void traceexec (lua_State *L, StkId base, StkId top, lua_Hook linehook) {
85} 85}
86 86
87 87
88static Closure *luaV_closure (lua_State *L, lua_Tag t, int nelems) { 88static Closure *luaV_closure (lua_State *L, int nelems) {
89 Closure *c = luaF_newclosure(L, nelems); 89 Closure *c = luaF_newclosure(L, nelems);
90 L->top -= nelems; 90 L->top -= nelems;
91 while (nelems--) 91 while (nelems--)
92 c->upvalue[nelems] = *(L->top+nelems); 92 c->upvalue[nelems] = *(L->top+nelems);
93 ttype(L->top) = t;
94 clvalue(L->top) = c; 93 clvalue(L->top) = c;
94 ttype(L->top) = LUA_TFUNCTION;
95 incr_top; 95 incr_top;
96 return c; 96 return c;
97} 97}
98 98
99 99
100void luaV_Cclosure (lua_State *L, lua_CFunction c, int nelems) { 100void luaV_Cclosure (lua_State *L, lua_CFunction c, int nelems) {
101 Closure *cl = luaV_closure(L, TAG_CCLOSURE, nelems); 101 Closure *cl = luaV_closure(L, nelems);
102 cl->f.c = c; 102 cl->f.c = c;
103 cl->isC = 1;
103} 104}
104 105
105 106
106void luaV_Lclosure (lua_State *L, Proto *l, int nelems) { 107void luaV_Lclosure (lua_State *L, Proto *l, int nelems) {
107 Closure *cl = luaV_closure(L, TAG_LCLOSURE, nelems); 108 Closure *cl = luaV_closure(L, nelems);
108 cl->f.l = l; 109 cl->f.l = l;
110 cl->isC = 0;
109} 111}
110 112
111 113
@@ -116,21 +118,21 @@ void luaV_Lclosure (lua_State *L, Proto *l, int nelems) {
116const TObject *luaV_gettable (lua_State *L, StkId t) { 118const TObject *luaV_gettable (lua_State *L, StkId t) {
117 const TObject *im; 119 const TObject *im;
118 int tg; 120 int tg;
119 if (ttype(t) == TAG_TABLE && /* `t' is a table? */ 121 if (ttype(t) == LUA_TTABLE && /* `t' is a table? */
120 ((tg = hvalue(t)->htag) == TAG_TABLE || /* with default tag? */ 122 ((tg = hvalue(t)->htag) == LUA_TTABLE || /* with default tag? */
121 ttype(luaT_getim(L, tg, IM_GETTABLE)) == TAG_NIL)) { /* or no TM? */ 123 ttype(luaT_getim(L, tg, IM_GETTABLE)) == LUA_TNIL)) { /* or no TM? */
122 /* do a primitive get */ 124 /* do a primitive get */
123 const TObject *h = luaH_get(L, hvalue(t), L->top-1); 125 const TObject *h = luaH_get(L, hvalue(t), L->top-1);
124 /* result is no nil or there is no `index' tag method? */ 126 /* result is no nil or there is no `index' tag method? */
125 if (ttype(h) != TAG_NIL || 127 if (ttype(h) != LUA_TNIL ||
126 (ttype(im=luaT_getim(L, tg, IM_INDEX)) == TAG_NIL)) 128 (ttype(im=luaT_getim(L, tg, IM_INDEX)) == LUA_TNIL))
127 return h; /* return result */ 129 return h; /* return result */
128 /* else call `index' tag method */ 130 /* else call `index' tag method */
129 } 131 }
130 else { /* try a 'gettable' TM */ 132 else { /* try a `gettable' tag method */
131 im = luaT_getimbyObj(L, t, IM_GETTABLE); 133 im = luaT_getimbyObj(L, t, IM_GETTABLE);
132 } 134 }
133 if (ttype(im) != TAG_NIL) { /* is there a tag method? */ 135 if (ttype(im) != LUA_TNIL) { /* is there a tag method? */
134 luaD_checkstack(L, 2); 136 luaD_checkstack(L, 2);
135 *(L->top+1) = *(L->top-1); /* key */ 137 *(L->top+1) = *(L->top-1); /* key */
136 *L->top = *t; /* table */ 138 *L->top = *t; /* table */
@@ -151,13 +153,13 @@ const TObject *luaV_gettable (lua_State *L, StkId t) {
151*/ 153*/
152void luaV_settable (lua_State *L, StkId t, StkId key) { 154void luaV_settable (lua_State *L, StkId t, StkId key) {
153 int tg; 155 int tg;
154 if (ttype(t) == TAG_TABLE && /* `t' is a table? */ 156 if (ttype(t) == LUA_TTABLE && /* `t' is a table? */
155 ((tg = hvalue(t)->htag) == TAG_TABLE || /* with default tag? */ 157 ((tg = hvalue(t)->htag) == LUA_TTABLE || /* with default tag? */
156 ttype(luaT_getim(L, tg, IM_SETTABLE)) == TAG_NIL)) /* or no TM? */ 158 ttype(luaT_getim(L, tg, IM_SETTABLE)) == LUA_TNIL)) /* or no TM? */
157 *luaH_set(L, hvalue(t), key) = *(L->top-1); /* do a primitive set */ 159 *luaH_set(L, hvalue(t), key) = *(L->top-1); /* do a primitive set */
158 else { /* try a `settable' tag method */ 160 else { /* try a `settable' tag method */
159 const TObject *im = luaT_getimbyObj(L, t, IM_SETTABLE); 161 const TObject *im = luaT_getimbyObj(L, t, IM_SETTABLE);
160 if (ttype(im) != TAG_NIL) { 162 if (ttype(im) != LUA_TNIL) {
161 luaD_checkstack(L, 3); 163 luaD_checkstack(L, 3);
162 *(L->top+2) = *(L->top-1); 164 *(L->top+2) = *(L->top-1);
163 *(L->top+1) = *key; 165 *(L->top+1) = *key;
@@ -175,12 +177,12 @@ void luaV_settable (lua_State *L, StkId t, StkId key) {
175const TObject *luaV_getglobal (lua_State *L, TString *s) { 177const TObject *luaV_getglobal (lua_State *L, TString *s) {
176 const TObject *value = luaH_getstr(L->gt, s); 178 const TObject *value = luaH_getstr(L->gt, s);
177 const TObject *im = luaT_getimbyObj(L, value, IM_GETGLOBAL); 179 const TObject *im = luaT_getimbyObj(L, value, IM_GETGLOBAL);
178 if (ttype(im) == TAG_NIL) /* is there a tag method? */ 180 if (ttype(im) == LUA_TNIL) /* is there a tag method? */
179 return value; /* default behavior */ 181 return value; /* default behavior */
180 else { /* tag method */ 182 else { /* tag method */
181 luaD_checkstack(L, 3); 183 luaD_checkstack(L, 3);
182 *L->top = *im; 184 *L->top = *im;
183 ttype(L->top+1) = TAG_STRING; 185 ttype(L->top+1) = LUA_TSTRING;
184 tsvalue(L->top+1) = s; /* global name */ 186 tsvalue(L->top+1) = s; /* global name */
185 *(L->top+2) = *value; 187 *(L->top+2) = *value;
186 L->top += 3; 188 L->top += 3;
@@ -193,14 +195,14 @@ const TObject *luaV_getglobal (lua_State *L, TString *s) {
193void luaV_setglobal (lua_State *L, TString *s) { 195void luaV_setglobal (lua_State *L, TString *s) {
194 const TObject *oldvalue = luaH_getstr(L->gt, s); 196 const TObject *oldvalue = luaH_getstr(L->gt, s);
195 const TObject *im = luaT_getimbyObj(L, oldvalue, IM_SETGLOBAL); 197 const TObject *im = luaT_getimbyObj(L, oldvalue, IM_SETGLOBAL);
196 if (ttype(im) == TAG_NIL) { /* is there a tag method? */ 198 if (ttype(im) == LUA_TNIL) { /* is there a tag method? */
197 if (oldvalue != &luaO_nilobject) { 199 if (oldvalue != &luaO_nilobject) {
198 /* cast to remove `const' is OK, because `oldvalue' != luaO_nilobject */ 200 /* cast to remove `const' is OK, because `oldvalue' != luaO_nilobject */
199 *(TObject *)oldvalue = *(L->top - 1); 201 *(TObject *)oldvalue = *(L->top - 1);
200 } 202 }
201 else { 203 else {
202 TObject key; 204 TObject key;
203 ttype(&key) = TAG_STRING; 205 ttype(&key) = LUA_TSTRING;
204 tsvalue(&key) = s; 206 tsvalue(&key) = s;
205 *luaH_set(L, L->gt, &key) = *(L->top - 1); 207 *luaH_set(L, L->gt, &key) = *(L->top - 1);
206 } 208 }
@@ -209,7 +211,7 @@ void luaV_setglobal (lua_State *L, TString *s) {
209 luaD_checkstack(L, 3); 211 luaD_checkstack(L, 3);
210 *(L->top+2) = *(L->top-1); /* new value */ 212 *(L->top+2) = *(L->top-1); /* new value */
211 *(L->top+1) = *oldvalue; 213 *(L->top+1) = *oldvalue;
212 ttype(L->top) = TAG_STRING; 214 ttype(L->top) = LUA_TSTRING;
213 tsvalue(L->top) = s; 215 tsvalue(L->top) = s;
214 *(L->top-1) = *im; 216 *(L->top-1) = *im;
215 L->top += 3; 217 L->top += 3;
@@ -222,11 +224,11 @@ static int call_binTM (lua_State *L, StkId top, IMS event) {
222 /* try first operand */ 224 /* try first operand */
223 const TObject *im = luaT_getimbyObj(L, top-2, event); 225 const TObject *im = luaT_getimbyObj(L, top-2, event);
224 L->top = top; 226 L->top = top;
225 if (ttype(im) == TAG_NIL) { 227 if (ttype(im) == LUA_TNIL) {
226 im = luaT_getimbyObj(L, top-1, event); /* try second operand */ 228 im = luaT_getimbyObj(L, top-1, event); /* try second operand */
227 if (ttype(im) == TAG_NIL) { 229 if (ttype(im) == LUA_TNIL) {
228 im = luaT_getim(L, 0, event); /* try a `global' method */ 230 im = luaT_getim(L, 0, event); /* try a `global' method */
229 if (ttype(im) == TAG_NIL) 231 if (ttype(im) == LUA_TNIL)
230 return 0; /* error */ 232 return 0; /* error */
231 } 233 }
232 } 234 }
@@ -238,7 +240,7 @@ static int call_binTM (lua_State *L, StkId top, IMS event) {
238 240
239static void call_arith (lua_State *L, StkId top, IMS event) { 241static void call_arith (lua_State *L, StkId top, IMS event) {
240 if (!call_binTM(L, top, event)) 242 if (!call_binTM(L, top, event))
241 luaG_binerror(L, top-2, TAG_NUMBER, "perform arithmetic on"); 243 luaG_binerror(L, top-2, LUA_TNUMBER, "perform arithmetic on");
242} 244}
243 245
244 246
@@ -265,9 +267,9 @@ static int luaV_strcomp (const TString *ls, const TString *rs) {
265 267
266 268
267int luaV_lessthan (lua_State *L, const TObject *l, const TObject *r, StkId top) { 269int luaV_lessthan (lua_State *L, const TObject *l, const TObject *r, StkId top) {
268 if (ttype(l) == TAG_NUMBER && ttype(r) == TAG_NUMBER) 270 if (ttype(l) == LUA_TNUMBER && ttype(r) == LUA_TNUMBER)
269 return (nvalue(l) < nvalue(r)); 271 return (nvalue(l) < nvalue(r));
270 else if (ttype(l) == TAG_STRING && ttype(r) == TAG_STRING) 272 else if (ttype(l) == LUA_TSTRING && ttype(r) == LUA_TSTRING)
271 return (luaV_strcomp(tsvalue(l), tsvalue(r)) < 0); 273 return (luaV_strcomp(tsvalue(l), tsvalue(r)) < 0);
272 else { /* call TM */ 274 else { /* call TM */
273 luaD_checkstack(L, 2); 275 luaD_checkstack(L, 2);
@@ -276,7 +278,7 @@ int luaV_lessthan (lua_State *L, const TObject *l, const TObject *r, StkId top)
276 if (!call_binTM(L, top, IM_LT)) 278 if (!call_binTM(L, top, IM_LT))
277 luaG_ordererror(L, top-2); 279 luaG_ordererror(L, top-2);
278 L->top--; 280 L->top--;
279 return (ttype(L->top) != TAG_NIL); 281 return (ttype(L->top) != LUA_TNIL);
280 } 282 }
281} 283}
282 284
@@ -286,7 +288,7 @@ void luaV_strconc (lua_State *L, int total, StkId top) {
286 int n = 2; /* number of elements handled in this pass (at least 2) */ 288 int n = 2; /* number of elements handled in this pass (at least 2) */
287 if (tostring(L, top-2) || tostring(L, top-1)) { 289 if (tostring(L, top-2) || tostring(L, top-1)) {
288 if (!call_binTM(L, top, IM_CONCAT)) 290 if (!call_binTM(L, top, IM_CONCAT))
289 luaG_binerror(L, top-2, TAG_STRING, "concat"); 291 luaG_binerror(L, top-2, LUA_TSTRING, "concat");
290 } 292 }
291 else if (tsvalue(top-1)->u.s.len > 0) { /* if len=0, do nothing */ 293 else if (tsvalue(top-1)->u.s.len > 0) { /* if len=0, do nothing */
292 /* at least two string values; get as many as possible */ 294 /* at least two string values; get as many as possible */
@@ -322,7 +324,7 @@ static void luaV_pack (lua_State *L, StkId firstelem) {
322 /* store counter in field `n' */ 324 /* store counter in field `n' */
323 luaH_setstrnum(L, htab, luaS_new(L, "n"), i); 325 luaH_setstrnum(L, htab, luaS_new(L, "n"), i);
324 L->top = firstelem; /* remove elements from the stack */ 326 L->top = firstelem; /* remove elements from the stack */
325 ttype(L->top) = TAG_TABLE; 327 ttype(L->top) = LUA_TTABLE;
326 hvalue(L->top) = htab; 328 hvalue(L->top) = htab;
327 incr_top; 329 incr_top;
328} 330}
@@ -393,7 +395,7 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
393 int n = GETARG_U(i); 395 int n = GETARG_U(i);
394 LUA_ASSERT(n>0, "invalid argument"); 396 LUA_ASSERT(n>0, "invalid argument");
395 do { 397 do {
396 ttype(top++) = TAG_NIL; 398 ttype(top++) = LUA_TNIL;
397 } while (--n > 0); 399 } while (--n > 0);
398 break; 400 break;
399 } 401 }
@@ -402,25 +404,25 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
402 break; 404 break;
403 } 405 }
404 case OP_PUSHINT: { 406 case OP_PUSHINT: {
405 ttype(top) = TAG_NUMBER; 407 ttype(top) = LUA_TNUMBER;
406 nvalue(top) = (Number)GETARG_S(i); 408 nvalue(top) = (Number)GETARG_S(i);
407 top++; 409 top++;
408 break; 410 break;
409 } 411 }
410 case OP_PUSHSTRING: { 412 case OP_PUSHSTRING: {
411 ttype(top) = TAG_STRING; 413 ttype(top) = LUA_TSTRING;
412 tsvalue(top) = kstr[GETARG_U(i)]; 414 tsvalue(top) = kstr[GETARG_U(i)];
413 top++; 415 top++;
414 break; 416 break;
415 } 417 }
416 case OP_PUSHNUM: { 418 case OP_PUSHNUM: {
417 ttype(top) = TAG_NUMBER; 419 ttype(top) = LUA_TNUMBER;
418 nvalue(top) = tf->knum[GETARG_U(i)]; 420 nvalue(top) = tf->knum[GETARG_U(i)];
419 top++; 421 top++;
420 break; 422 break;
421 } 423 }
422 case OP_PUSHNEGNUM: { 424 case OP_PUSHNEGNUM: {
423 ttype(top) = TAG_NUMBER; 425 ttype(top) = LUA_TNUMBER;
424 nvalue(top) = -tf->knum[GETARG_U(i)]; 426 nvalue(top) = -tf->knum[GETARG_U(i)];
425 top++; 427 top++;
426 break; 428 break;
@@ -446,7 +448,7 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
446 break; 448 break;
447 } 449 }
448 case OP_GETDOTTED: { 450 case OP_GETDOTTED: {
449 ttype(top) = TAG_STRING; 451 ttype(top) = LUA_TSTRING;
450 tsvalue(top) = kstr[GETARG_U(i)]; 452 tsvalue(top) = kstr[GETARG_U(i)];
451 L->top = top+1; 453 L->top = top+1;
452 *(top-1) = *luaV_gettable(L, top-1); 454 *(top-1) = *luaV_gettable(L, top-1);
@@ -461,7 +463,7 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
461 case OP_PUSHSELF: { 463 case OP_PUSHSELF: {
462 TObject receiver; 464 TObject receiver;
463 receiver = *(top-1); 465 receiver = *(top-1);
464 ttype(top) = TAG_STRING; 466 ttype(top) = LUA_TSTRING;
465 tsvalue(top++) = kstr[GETARG_U(i)]; 467 tsvalue(top++) = kstr[GETARG_U(i)];
466 L->top = top; 468 L->top = top;
467 *(top-2) = *luaV_gettable(L, top-2); 469 *(top-2) = *luaV_gettable(L, top-2);
@@ -472,7 +474,7 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
472 L->top = top; 474 L->top = top;
473 luaC_checkGC(L); 475 luaC_checkGC(L);
474 hvalue(top) = luaH_new(L, GETARG_U(i)); 476 hvalue(top) = luaH_new(L, GETARG_U(i));
475 ttype(top) = TAG_TABLE; 477 ttype(top) = LUA_TTABLE;
476 top++; 478 top++;
477 break; 479 break;
478 } 480 }
@@ -523,7 +525,7 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
523 } 525 }
524 case OP_ADDI: { 526 case OP_ADDI: {
525 if (tonumber(top-1)) { 527 if (tonumber(top-1)) {
526 ttype(top) = TAG_NUMBER; 528 ttype(top) = LUA_TNUMBER;
527 nvalue(top) = (Number)GETARG_S(i); 529 nvalue(top) = (Number)GETARG_S(i);
528 call_arith(L, top+1, IM_ADD); 530 call_arith(L, top+1, IM_ADD);
529 } 531 }
@@ -571,7 +573,7 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
571 } 573 }
572 case OP_MINUS: { 574 case OP_MINUS: {
573 if (tonumber(top-1)) { 575 if (tonumber(top-1)) {
574 ttype(top) = TAG_NIL; 576 ttype(top) = LUA_TNIL;
575 call_arith(L, top+1, IM_UNM); 577 call_arith(L, top+1, IM_UNM);
576 } 578 }
577 else 579 else
@@ -580,7 +582,7 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
580 } 582 }
581 case OP_NOT: { 583 case OP_NOT: {
582 ttype(top-1) = 584 ttype(top-1) =
583 (ttype(top-1) == TAG_NIL) ? TAG_NUMBER : TAG_NIL; 585 (ttype(top-1) == LUA_TNIL) ? LUA_TNUMBER : LUA_TNIL;
584 nvalue(top-1) = 1; 586 nvalue(top-1) = 1;
585 break; 587 break;
586 } 588 }
@@ -615,20 +617,20 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
615 break; 617 break;
616 } 618 }
617 case OP_JMPT: { 619 case OP_JMPT: {
618 if (ttype(--top) != TAG_NIL) dojump(pc, i); 620 if (ttype(--top) != LUA_TNIL) dojump(pc, i);
619 break; 621 break;
620 } 622 }
621 case OP_JMPF: { 623 case OP_JMPF: {
622 if (ttype(--top) == TAG_NIL) dojump(pc, i); 624 if (ttype(--top) == LUA_TNIL) dojump(pc, i);
623 break; 625 break;
624 } 626 }
625 case OP_JMPONT: { 627 case OP_JMPONT: {
626 if (ttype(top-1) == TAG_NIL) top--; 628 if (ttype(top-1) == LUA_TNIL) top--;
627 else dojump(pc, i); 629 else dojump(pc, i);
628 break; 630 break;
629 } 631 }
630 case OP_JMPONF: { 632 case OP_JMPONF: {
631 if (ttype(top-1) != TAG_NIL) top--; 633 if (ttype(top-1) != LUA_TNIL) top--;
632 else dojump(pc, i); 634 else dojump(pc, i);
633 break; 635 break;
634 } 636 }
@@ -637,7 +639,7 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
637 break; 639 break;
638 } 640 }
639 case OP_PUSHNILJMP: { 641 case OP_PUSHNILJMP: {
640 ttype(top++) = TAG_NIL; 642 ttype(top++) = LUA_TNIL;
641 pc++; 643 pc++;
642 break; 644 break;
643 } 645 }
@@ -657,9 +659,9 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
657 break; 659 break;
658 } 660 }
659 case OP_FORLOOP: { 661 case OP_FORLOOP: {
660 LUA_ASSERT(ttype(top-1) == TAG_NUMBER, "invalid step"); 662 LUA_ASSERT(ttype(top-1) == LUA_TNUMBER, "invalid step");
661 LUA_ASSERT(ttype(top-2) == TAG_NUMBER, "invalid limit"); 663 LUA_ASSERT(ttype(top-2) == LUA_TNUMBER, "invalid limit");
662 if (ttype(top-3) != TAG_NUMBER) 664 if (ttype(top-3) != LUA_TNUMBER)
663 lua_error(L, "`for' index must be a number"); 665 lua_error(L, "`for' index must be a number");
664 nvalue(top-3) += nvalue(top-1); /* increment index */ 666 nvalue(top-3) += nvalue(top-1); /* increment index */
665 if (nvalue(top-1) > 0 ? 667 if (nvalue(top-1) > 0 ?
@@ -672,7 +674,7 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
672 } 674 }
673 case OP_LFORPREP: { 675 case OP_LFORPREP: {
674 Node *node; 676 Node *node;
675 if (ttype(top-1) != TAG_TABLE) 677 if (ttype(top-1) != LUA_TTABLE)
676 lua_error(L, "`for' table must be a table"); 678 lua_error(L, "`for' table must be a table");
677 node = luaH_next(L, hvalue(top-1), &luaO_nilobject); 679 node = luaH_next(L, hvalue(top-1), &luaO_nilobject);
678 if (node == NULL) { /* `empty' loop? */ 680 if (node == NULL) { /* `empty' loop? */
@@ -688,7 +690,7 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
688 } 690 }
689 case OP_LFORLOOP: { 691 case OP_LFORLOOP: {
690 Node *node; 692 Node *node;
691 LUA_ASSERT(ttype(top-3) == TAG_TABLE, "invalid table"); 693 LUA_ASSERT(ttype(top-3) == LUA_TTABLE, "invalid table");
692 node = luaH_next(L, hvalue(top-3), top-2); 694 node = luaH_next(L, hvalue(top-3), top-2);
693 if (node == NULL) /* end loop? */ 695 if (node == NULL) /* end loop? */
694 top -= 3; /* remove table, key, and value */ 696 top -= 3; /* remove table, key, and value */
diff --git a/lvm.h b/lvm.h
index e74eaf30..f43150b1 100644
--- a/lvm.h
+++ b/lvm.h
@@ -1,5 +1,5 @@
1/* 1/*
2** $Id: lvm.h,v 1.25 2000/08/31 21:02:55 roberto Exp roberto $ 2** $Id: lvm.h,v 1.26 2000/09/05 19:33:32 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*/
@@ -13,8 +13,8 @@
13#include "ltm.h" 13#include "ltm.h"
14 14
15 15
16#define tonumber(o) ((ttype(o) != TAG_NUMBER) && (luaV_tonumber(o) != 0)) 16#define tonumber(o) ((ttype(o) != LUA_TNUMBER) && (luaV_tonumber(o) != 0))
17#define tostring(L,o) ((ttype(o) != TAG_STRING) && (luaV_tostring(L, o) != 0)) 17#define tostring(L,o) ((ttype(o) != LUA_TSTRING) && (luaV_tostring(L, o) != 0))
18 18
19 19
20int luaV_tonumber (TObject *obj); 20int luaV_tonumber (TObject *obj);
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-03-19 21:57:37 +0000