update lua to 5.3.2

3rd/lua/lundump.c

@@ -1,5 +1,5 @@
 /*
-** $Id: lundump.c,v 2.41 2014/11/02 19:19:04 roberto Exp $
+** $Id: lundump.c,v 2.44 2015/11/02 16:09:30 roberto Exp $
 ** load precompiled Lua chunks
 ** See Copyright Notice in lua.h
 */
@@ -32,7 +32,6 @@
 typedef struct {
   lua_State *L;
   ZIO *Z;
-  Mbuffer *b;
   const char *name;
 } LoadState;
 
@@ -92,10 +91,15 @@ static TString *LoadString (LoadState *S) {
     LoadVar(S, size);
   if (size == 0)
     return NULL;
-  else {
-    char *s = luaZ_openspace(S->L, S->b, --size);
-    LoadVector(S, s, size);
-    return luaS_newlstr(S->L, s, size);
+  else if (--size <= LUAI_MAXSHORTLEN) {  /* short string? */
+    char buff[LUAI_MAXSHORTLEN];
+    LoadVector(S, buff, size);
+    return luaS_newlstr(S->L, buff, size);
+  }
+  else {  /* long string */
+    TString *ts = luaS_createlngstrobj(S->L, size);
+    LoadVector(S, getstr(ts), size);  /* load directly in final place */
+    return ts;
   }
 }
 
@@ -252,8 +256,7 @@ static void checkHeader (LoadState *S) {
 /*
 ** load precompiled chunk
 */
-LClosure *luaU_undump(lua_State *L, ZIO *Z, Mbuffer *buff,
-                      const char *name) {
+LClosure *luaU_undump(lua_State *L, ZIO *Z, const char *name) {
   LoadState S;
   LClosure *cl;
   if (*name == '@' || *name == '=')
@@ -264,11 +267,10 @@ LClosure *luaU_undump(lua_State *L, ZIO *Z, Mbuffer *buff,
     S.name = name;
   S.L = L;
   S.Z = Z;
-  S.b = buff;
   checkHeader(&S);
   cl = luaF_newLclosure(L, LoadByte(&S));
   setclLvalue(L, L->top, cl);
-  incr_top(L);
+  luaD_inctop(L);
   cl->p = luaF_newproto(L, NULL);
   LoadFunction(&S, cl->p, NULL);
   lua_assert(cl->nupvalues == cl->p->sizeupvalues);