Applied latest Lua patches (up to 5.1.4-8)

Author: ccw808

src/lapi.c

@@ -334,6 +334,7 @@ LUA_API lua_Integer lua_tointeger (lua_State *L, int idx) {
 }
 
 
+// MTA Specific
 LUA_API lua_Integer lua_tointegerW (lua_State *L, int idx) {
   TValue n;
   const TValue *o = index2adr(L, idx);

src/lcode.c

@@ -1,5 +1,5 @@
 /*
-** $Id: lcode.c,v 2.25.1.3 2007/12/28 15:32:23 roberto Exp $
+** $Id: lcode.c,v 2.25.1.4 2009/06/15 14:12:25 roberto Exp $
 ** Code generator for Lua
 ** See Copyright Notice in lua.h
 */
@@ -544,15 +544,18 @@ void luaK_goiftrue (FuncState *fs, expdesc *e) {
       pc = NO_JUMP;  /* always true; do nothing */
       break;
     }
-    case VFALSE: {
-      pc = luaK_jump(fs);  /* always jump */
-      break;
-    }
     case VJMP: {
       invertjump(fs, e);
       pc = e->u.s.info;
       break;
     }
+    case VFALSE: {
+      if (!hasjumps(e)) {
+        pc = luaK_jump(fs);  /* always jump */
+        break;
+      }
+      /* else go through */
+    }
     default: {
       pc = jumponcond(fs, e, 0);
       break;
@@ -572,14 +575,17 @@ static void luaK_goiffalse (FuncState *fs, expdesc *e) {
       pc = NO_JUMP;  /* always false; do nothing */
       break;
     }
-    case VTRUE: {
-      pc = luaK_jump(fs);  /* always jump */
-      break;
-    }
     case VJMP: {
       pc = e->u.s.info;
       break;
     }
+    case VTRUE: {
+      if (!hasjumps(e)) {
+        pc = luaK_jump(fs);  /* always jump */
+        break;
+      }
+      /* else go through */
+    }
     default: {
       pc = jumponcond(fs, e, 1);
       break;

src/ldblib.c

@@ -1,5 +1,5 @@
 /*
-** $Id: ldblib.c,v 1.104.1.3 2008/01/21 13:11:21 roberto Exp $
+** $Id: ldblib.c,v 1.104.1.4 2009/08/04 18:50:18 roberto Exp $
 ** Interface from Lua to its debug API
 ** See Copyright Notice in lua.h
 */
@@ -44,6 +44,7 @@ static int db_setmetatable (lua_State *L) {
 
 
 static int db_getfenv (lua_State *L) {
+  luaL_checkany(L, 1);
   lua_getfenv(L, 1);
   return 1;
 }

src/ldo.c

@@ -30,6 +30,7 @@
 #include "lvm.h"
 #include "lzio.h"
 
+// MTA Specific
 lua_PreCallHook pPreCallHook = NULL;
 void lua_registerPreCallHook ( lua_PreCallHook f )
 {
@@ -308,6 +309,7 @@ int luaD_precall (lua_State *L, StkId func, int nresults) {
   }
   else {  /* if is a C function, call it */
     CallInfo *ci;
+    // MTA Specific
     int allowed = 1;
     int n = 0;
     luaD_checkstack(L, LUA_MINSTACK);  /* ensure minimum stack size */
@@ -320,6 +322,7 @@ int luaD_precall (lua_State *L, StkId func, int nresults) {
     if (L->hookmask & LUA_MASKCALL)
       luaD_callhook(L, LUA_HOOKCALL, -1);
     lua_unlock(L);
+    // MTA Specific
     if ( pPreCallHook )
         allowed = pPreCallHook ( *curr_func(L)->c.f, L );
     if ( allowed )

src/liolib.c

@@ -1,5 +1,5 @@
 /*
-** $Id: liolib.c,v 2.73.1.3 2008/01/18 17:47:43 roberto Exp $
+** $Id: liolib.c,v 2.73.1.4 2010/05/14 15:33:51 roberto Exp $
 ** Standard I/O (and system) library
 ** See Copyright Notice in lua.h
 */
@@ -275,7 +275,10 @@ static int read_number (lua_State *L, FILE *f) {
     lua_pushnumber(L, d);
     return 1;
   }
-  else return 0;  /* read fails */
+  else {
+    lua_pushnil(L);  /* "result" to be removed */
+    return 0;  /* read fails */
+  }
 }
 
 

src/llex.c

@@ -1,5 +1,5 @@
 /*
-** $Id: llex.c,v 2.20.1.1 2007/12/27 13:02:25 roberto Exp $
+** $Id: llex.c,v 2.20.1.2 2009/11/23 14:58:22 roberto Exp $
 ** Lexical Analyzer
 ** See Copyright Notice in lua.h
 */
@@ -118,8 +118,10 @@ TString *luaX_newstring (LexState *ls, const char *str, size_t l) {
   lua_State *L = ls->L;
   TString *ts = luaS_newlstr(L, str, l);
   TValue *o = luaH_setstr(L, ls->fs->h, ts);  /* entry for `str' */
-  if (ttisnil(o))
+  if (ttisnil(o)) {
     setbvalue(o, 1);  /* make sure `str' will not be collected */
+    luaC_checkGC(L);
+  }
   return ts;
 }
 

src/lmathlib.c

@@ -206,6 +206,7 @@ static int math_random (lua_State *L) {
 
 
 static int math_randomseed (lua_State *L) {
+    // MTA Specific
     // lua_tointegerW wraps out of range numbers (luaL_checkint clips values below -1^32 and above 1^32)
     srand(lua_tointegerW(L, 1));
     // Do some rands here, as the first few results bear a close relationship to the seed number

src/loadlib.c

@@ -1,5 +1,5 @@
 /*
-** $Id: loadlib.c,v 1.52.1.3 2008/08/06 13:29:28 roberto Exp $
+** $Id: loadlib.c,v 1.52.1.4 2009/09/09 13:17:16 roberto Exp $
 ** Dynamic library loader for Lua
 ** See Copyright Notice in lua.h
 **
@@ -638,7 +638,7 @@ LUALIB_API int luaopen_package (lua_State *L) {
   lua_pushvalue(L, -1);
   lua_replace(L, LUA_ENVIRONINDEX);
   /* create `loaders' table */
-  lua_createtable(L, 0, sizeof(loaders)/sizeof(loaders[0]) - 1);
+  lua_createtable(L, sizeof(loaders)/sizeof(loaders[0]) - 1, 0);
   /* fill it with pre-defined loaders */
   for (i=0; loaders[i] != NULL; i++) {
     lua_pushcfunction(L, loaders[i]);

src/lstate.c

@@ -212,6 +212,7 @@ LUA_API void lua_close (lua_State *L) {
   close_state(L);
 }
 
+// MTA specific
 LUA_API lua_State* lua_getmainstate (lua_State *L) {
   return G(L)->mainthread;
 }

src/lstrlib.c

@@ -1,5 +1,5 @@
 /*
-** $Id: lstrlib.c,v 1.132.1.4 2008/07/11 17:27:21 roberto Exp $
+** $Id: lstrlib.c,v 1.132.1.5 2010/05/14 15:34:19 roberto Exp $
 ** Standard library for string operations and pattern-matching
 ** See Copyright Notice in lua.h
 */
@@ -753,6 +753,7 @@ static void addintlen (char *form) {
 
 
 static int str_format (lua_State *L) {
+  int top = lua_gettop(L);
   int arg = 1;
   size_t sfl;
   const char *strfrmt = luaL_checklstring(L, arg, &sfl);
@@ -767,7 +768,8 @@ static int str_format (lua_State *L) {
     else { /* format item */
       char form[MAX_FORMAT];  /* to store the format (`%...') */
       char buff[MAX_ITEM];  /* to store the formatted item */
-      arg++;
+      if (++arg > top)
+        luaL_argerror(L, arg, "no value");
       strfrmt = scanformat(L, strfrmt, form);
       switch (*strfrmt++) {
         case 'c': {