"indent -kr -i2 -br -brf -nut" plus a few manual formating

ldump.c

@@ -1,5 +1,5 @@
 /*
-** $Id: ldump.c,v 2.23 2014/02/28 16:13:01 roberto Exp roberto $
+** $Id: ldump.c,v 2.24 2014/03/01 15:18:44 roberto Exp roberto $
 ** save precompiled Lua chunks
 ** See Copyright Notice in lua.h
 */
@@ -15,176 +15,180 @@
 #include "lstate.h"
 #include "lundump.h"
 
+
 typedef struct {
- lua_State* L;
- lua_Writer writer;
- void* data;
- int strip;
- int status;
+  lua_State *L;
+  lua_Writer writer;
+  void *data;
+  int strip;
+  int status;
 } DumpState;
 
 
 #define DumpVar(x,D)		DumpBlock(&x,sizeof(x),D)
 #define DumpVector(v,n,D)	DumpBlock(v,(n)*sizeof((v)[0]),D)
 
-static void DumpBlock(const void* b, size_t size, DumpState* D)
-{
- if (D->status==0)
- {
-  lua_unlock(D->L);
-  D->status=(*D->writer)(D->L,b,size,D->data);
-  lua_lock(D->L);
- }
+
+static void DumpBlock (const void *b, size_t size, DumpState *D) {
+  if (D->status == 0) {
+    lua_unlock(D->L);
+    D->status = (*D->writer)(D->L, b, size, D->data);
+    lua_lock(D->L);
+  }
 }
 
-static void DumpByte(int y, DumpState* D)
-{
- lu_byte x=(lu_byte)y;
- DumpVar(x,D);
+
+static void DumpByte (int y, DumpState *D) {
+  lu_byte x = (lu_byte)y;
+  DumpVar(x, D);
 }
 
-static void DumpInt(int x, DumpState* D)
-{
- DumpVar(x,D);
+
+static void DumpInt (int x, DumpState *D) {
+  DumpVar(x, D);
 }
 
-static void DumpNumber(lua_Number x, DumpState* D)
-{
- DumpVar(x,D);
+
+static void DumpNumber (lua_Number x, DumpState *D) {
+  DumpVar(x, D);
 }
 
-static void DumpInteger(lua_Integer x, DumpState* D)
-{
- DumpVar(x,D);
+
+static void DumpInteger (lua_Integer x, DumpState *D) {
+  DumpVar(x, D);
 }
 
-static void DumpString(const TString* s, DumpState* D)
-{
- if (s==NULL) DumpByte(0,D);
- else {
-  size_t size = s->tsv.len+1;  /* include trailing '\0' */
-  if (size < 0xFF) DumpByte(size,D);
-  else
-  {
-   DumpByte(0xFF,D);
-   DumpVar(size,D);
+
+static void DumpString (const TString *s, DumpState *D) {
+  if (s == NULL)
+    DumpByte(0, D);
+  else {
+    size_t size = s->tsv.len + 1;  /* include trailing '\0' */
+    if (size < 0xFF)
+      DumpByte(size, D);
+    else {
+      DumpByte(0xFF, D);
+      DumpVar(size, D);
+    }
+    DumpVector(getstr(s), size - 1, D);  /* no need to save '\0' */
   }
-  DumpVector(getstr(s),size-1,D);  /* no need to save '\0' */
- }
 }
 
-static void DumpCode(const Proto* f, DumpState* D)
-{
- DumpInt(f->sizecode,D);
- DumpVector(f->code,f->sizecode,D);
+
+static void DumpCode (const Proto *f, DumpState *D) {
+  DumpInt(f->sizecode, D);
+  DumpVector(f->code, f->sizecode, D);
 }
 
-static void DumpFunction(const Proto* f, DumpState* D);
-
-static void DumpConstants(const Proto* f, DumpState* D)
-{
- int i,n=f->sizek;
- DumpInt(n,D);
- for (i=0; i<n; i++)
- {
-  const TValue* o=&f->k[i];
-  DumpByte(ttype(o),D);
-  switch (ttype(o))
-  {
-   case LUA_TNIL:
-	break;
-   case LUA_TBOOLEAN:
-	DumpByte(bvalue(o),D);
-	break;
-   case LUA_TNUMFLT:
-	DumpNumber(fltvalue(o),D);
-	break;
-   case LUA_TNUMINT:
-	DumpInteger(ivalue(o),D);
-	break;
-   case LUA_TSHRSTR: case LUA_TLNGSTR:
-	DumpString(rawtsvalue(o),D);
-	break;
-    default: lua_assert(0);
+
+static void DumpFunction(const Proto *f, DumpState *D);
+
+static void DumpConstants (const Proto *f, DumpState *D) {
+  int i;
+  int n = f->sizek;
+  DumpInt(n, D);
+  for (i = 0; i < n; i++) {
+    const TValue *o = &f->k[i];
+    DumpByte(ttype(o), D);
+    switch (ttype(o)) {
+    case LUA_TNIL:
+      break;
+    case LUA_TBOOLEAN:
+      DumpByte(bvalue(o), D);
+      break;
+    case LUA_TNUMFLT:
+      DumpNumber(fltvalue(o), D);
+      break;
+    case LUA_TNUMINT:
+      DumpInteger(ivalue(o), D);
+      break;
+    case LUA_TSHRSTR:
+    case LUA_TLNGSTR:
+      DumpString(rawtsvalue(o), D);
+      break;
+    default:
+      lua_assert(0);
+    }
   }
- }
- n=f->sizep;
- DumpInt(n,D);
- for (i=0; i<n; i++) DumpFunction(f->p[i],D);
+  n = f->sizep;
+  DumpInt(n, D);
+  for (i = 0; i < n; i++)
+    DumpFunction(f->p[i], D);
 }
 
-static void DumpUpvalues(const Proto* f, DumpState* D)
-{
- int i,n=f->sizeupvalues;
- DumpInt(n,D);
- for (i=0; i<n; i++)
- {
-  DumpByte(f->upvalues[i].instack,D);
-  DumpByte(f->upvalues[i].idx,D);
- }
+
+static void DumpUpvalues (const Proto *f, DumpState *D) {
+  int i, n = f->sizeupvalues;
+  DumpInt(n, D);
+  for (i = 0; i < n; i++) {
+    DumpByte(f->upvalues[i].instack, D);
+    DumpByte(f->upvalues[i].idx, D);
+  }
 }
 
-static void DumpDebug(const Proto* f, DumpState* D)
-{
- int i,n;
- DumpString((D->strip) ? NULL : f->source,D);
- n= (D->strip) ? 0 : f->sizelineinfo;
- DumpInt(n,D);
- DumpVector(f->lineinfo,n,D);
- n= (D->strip) ? 0 : f->sizelocvars;
- DumpInt(n,D);
- for (i=0; i<n; i++)
- {
-  DumpString(f->locvars[i].varname,D);
-  DumpInt(f->locvars[i].startpc,D);
-  DumpInt(f->locvars[i].endpc,D);
- }
- n= (D->strip) ? 0 : f->sizeupvalues;
- DumpInt(n,D);
- for (i=0; i<n; i++) DumpString(f->upvalues[i].name,D);
+
+static void DumpDebug (const Proto *f, DumpState *D) {
+  int i, n;
+  DumpString((D->strip) ? NULL : f->source, D);
+  n = (D->strip) ? 0 : f->sizelineinfo;
+  DumpInt(n, D);
+  DumpVector(f->lineinfo, n, D);
+  n = (D->strip) ? 0 : f->sizelocvars;
+  DumpInt(n, D);
+  for (i = 0; i < n; i++) {
+    DumpString(f->locvars[i].varname, D);
+    DumpInt(f->locvars[i].startpc, D);
+    DumpInt(f->locvars[i].endpc, D);
+  }
+  n = (D->strip) ? 0 : f->sizeupvalues;
+  DumpInt(n, D);
+  for (i = 0; i < n; i++)
+    DumpString(f->upvalues[i].name, D);
 }
 
-static void DumpFunction(const Proto* f, DumpState* D)
-{
- DumpInt(f->linedefined,D);
- DumpInt(f->lastlinedefined,D);
- DumpByte(f->numparams,D);
- DumpByte(f->is_vararg,D);
- DumpByte(f->maxstacksize,D);
- DumpCode(f,D);
- DumpConstants(f,D);
- DumpUpvalues(f,D);
- DumpDebug(f,D);
+
+static void DumpFunction (const Proto *f, DumpState *D) {
+  DumpInt(f->linedefined, D);
+  DumpInt(f->lastlinedefined, D);
+  DumpByte(f->numparams, D);
+  DumpByte(f->is_vararg, D);
+  DumpByte(f->maxstacksize, D);
+  DumpCode(f, D);
+  DumpConstants(f, D);
+  DumpUpvalues(f, D);
+  DumpDebug(f, D);
 }
 
-static void DumpHeader(DumpState* D)
-{
- DumpBlock(LUA_SIGNATURE,sizeof(LUA_SIGNATURE),D);
- DumpBlock(LUAC_DATA,sizeof(LUAC_DATA),D);
- DumpByte(LUAC_VERSION,D);
- DumpByte(LUAC_FORMAT,D);
- DumpByte(sizeof(int),D);
- DumpByte(sizeof(size_t),D);
- DumpByte(sizeof(Instruction),D);
- DumpByte(sizeof(lua_Integer),D);
- DumpByte(sizeof(lua_Number),D);
- DumpInteger(LUAC_INT,D);
- DumpNumber(LUAC_NUM,D);
+
+static void DumpHeader (DumpState *D) {
+  DumpBlock(LUA_SIGNATURE, sizeof(LUA_SIGNATURE), D);
+  DumpBlock(LUAC_DATA, sizeof(LUAC_DATA), D);
+  DumpByte(LUAC_VERSION, D);
+  DumpByte(LUAC_FORMAT, D);
+  DumpByte(sizeof(int), D);
+  DumpByte(sizeof(size_t), D);
+  DumpByte(sizeof(Instruction), D);
+  DumpByte(sizeof(lua_Integer), D);
+  DumpByte(sizeof(lua_Number), D);
+  DumpInteger(LUAC_INT, D);
+  DumpNumber(LUAC_NUM, D);
 }
 
+
 /*
 ** dump Lua function as precompiled chunk
 */
-int luaU_dump (lua_State* L, const Proto* f, lua_Writer w, void* data, int strip)
-{
- DumpState D;
- D.L=L;
- D.writer=w;
- D.data=data;
- D.strip=strip;
- D.status=0;
- DumpHeader(&D);
- DumpByte(f->sizeupvalues,&D);
- DumpFunction(f,&D);
- return D.status;
+int luaU_dump(lua_State *L, const Proto *f, lua_Writer w, void *data,
+              int strip) {
+  DumpState D;
+  D.L = L;
+  D.writer = w;
+  D.data = data;
+  D.strip = strip;
+  D.status = 0;
+  DumpHeader(&D);
+  DumpByte(f->sizeupvalues, &D);
+  DumpFunction(f, &D);
+  return D.status;
 }
+

lundump.c

@@ -1,5 +1,5 @@
 /*
-** $Id: lundump.c,v 2.29 2014/02/28 16:13:01 roberto Exp roberto $
+** $Id: lundump.c,v 2.30 2014/03/01 15:18:44 roberto Exp roberto $
 ** load precompiled Lua chunks
 ** See Copyright Notice in lua.h
 */
@@ -20,227 +20,242 @@
 #include "lundump.h"
 #include "lzio.h"
 
-typedef struct {
- lua_State* L;
- ZIO* Z;
- Mbuffer* b;
- const char* name;
-} LoadState;
-
-static l_noret error(LoadState* S, const char* why)
-{
- luaO_pushfstring(S->L,"%s: %s precompiled chunk",S->name,why);
- luaD_throw(S->L,LUA_ERRSYNTAX);
-}
 
 #define LoadVar(S,x)		LoadBlock(S,&x,sizeof(x))
 #define LoadVector(S,b,n)	LoadBlock(S,b,(n)*sizeof((b)[0]))
 
 #if !defined(luai_verifycode)
-#define luai_verifycode(L,b,f)	/* empty */
+#define luai_verifycode(L,b,f)  /* empty */
 #endif
 
-static void LoadBlock(LoadState* S, void* b, size_t size)
-{
- if (luaZ_read(S->Z,b,size)!=0) error(S,"truncated");
-}
-
-static lu_byte LoadByte(LoadState* S)
-{
- lu_byte x;
- LoadVar(S,x);
- return x;
-}
-
-static int LoadInt(LoadState* S)
-{
- int x;
- LoadVar(S,x);
- if (x<0) error(S,"corrupted");
- return x;
-}
-
-static lua_Number LoadNumber(LoadState* S)
-{
- lua_Number x;
- LoadVar(S,x);
- return x;
-}
-
-static lua_Integer LoadInteger(LoadState* S)
-{
- lua_Integer x;
- LoadVar(S,x);
- return x;
-}
-
-static TString* LoadString(LoadState* S)
-{
- size_t size = LoadByte(S);
- if (size == 0xFF) 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);
- }
-}
-
-static void LoadCode(LoadState* S, Proto* f)
-{
- int n=LoadInt(S);
- f->code=luaM_newvector(S->L,n,Instruction);
- f->sizecode=n;
- LoadVector(S,f->code,n);
-}
-
-static void LoadFunction(LoadState* S, Proto* f);
-
-static void LoadConstants(LoadState* S, Proto* f)
-{
- int i,n;
- n=LoadInt(S);
- f->k=luaM_newvector(S->L,n,TValue);
- f->sizek=n;
- for (i=0; i<n; i++) setnilvalue(&f->k[i]);
- for (i=0; i<n; i++)
- {
-  TValue* o=&f->k[i];
-  int t=LoadByte(S);
-  switch (t)
-  {
-   case LUA_TNIL:
-	setnilvalue(o);
-	break;
-   case LUA_TBOOLEAN:
-	setbvalue(o,LoadByte(S));
-	break;
-   case LUA_TNUMFLT:
-	setnvalue(o,LoadNumber(S));
-	break;
-   case LUA_TNUMINT:
-	setivalue(o,LoadInteger(S));
-	break;
-   case LUA_TSHRSTR: case LUA_TLNGSTR:
-	setsvalue2n(S->L,o,LoadString(S));
-	break;
-    default: lua_assert(0);
+
+typedef struct {
+  lua_State *L;
+  ZIO *Z;
+  Mbuffer *b;
+  const char *name;
+} LoadState;
+
+
+static l_noret error(LoadState *S, const char *why) {
+  luaO_pushfstring(S->L, "%s: %s precompiled chunk", S->name, why);
+  luaD_throw(S->L, LUA_ERRSYNTAX);
+}
+
+
+static void LoadBlock (LoadState *S, void *b, size_t size) {
+  if (luaZ_read(S->Z, b, size) != 0)
+    error(S, "truncated");
+}
+
+
+static lu_byte LoadByte (LoadState *S) {
+  lu_byte x;
+  LoadVar(S, x);
+  return x;
+}
+
+
+static int LoadInt (LoadState *S) {
+  int x;
+  LoadVar(S, x);
+  if (x < 0)
+    error(S, "corrupted");
+  return x;
+}
+
+
+static lua_Number LoadNumber (LoadState *S) {
+  lua_Number x;
+  LoadVar(S, x);
+  return x;
+}
+
+
+static lua_Integer LoadInteger (LoadState *S) {
+  lua_Integer x;
+  LoadVar(S, x);
+  return x;
+}
+
+
+static TString *LoadString (LoadState *S) {
+  size_t size = LoadByte(S);
+  if (size == 0xFF)
+    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);
   }
- }
- n=LoadInt(S);
- f->p=luaM_newvector(S->L,n,Proto*);
- f->sizep=n;
- for (i=0; i<n; i++) f->p[i]=NULL;
- for (i=0; i<n; i++)
- {
-  f->p[i]=luaF_newproto(S->L);
-  LoadFunction(S,f->p[i]);
- }
-}
-
-static void LoadUpvalues(LoadState* S, Proto* f)
-{
- int i,n;
- n=LoadInt(S);
- f->upvalues=luaM_newvector(S->L,n,Upvaldesc);
- f->sizeupvalues=n;
- for (i=0; i<n; i++) f->upvalues[i].name=NULL;
- for (i=0; i<n; i++)
- {
-  f->upvalues[i].instack=LoadByte(S);
-  f->upvalues[i].idx=LoadByte(S);
- }
-}
-
-static void LoadDebug(LoadState* S, Proto* f)
-{
- int i,n;
- f->source=LoadString(S);
- n=LoadInt(S);
- f->lineinfo=luaM_newvector(S->L,n,int);
- f->sizelineinfo=n;
- LoadVector(S,f->lineinfo,n);
- n=LoadInt(S);
- f->locvars=luaM_newvector(S->L,n,LocVar);
- f->sizelocvars=n;
- for (i=0; i<n; i++) f->locvars[i].varname=NULL;
- for (i=0; i<n; i++)
- {
-  f->locvars[i].varname=LoadString(S);
-  f->locvars[i].startpc=LoadInt(S);
-  f->locvars[i].endpc=LoadInt(S);
- }
- n=LoadInt(S);
- for (i=0; i<n; i++) f->upvalues[i].name=LoadString(S);
-}
-
-static void LoadFunction(LoadState* S, Proto* f)
-{
- f->linedefined=LoadInt(S);
- f->lastlinedefined=LoadInt(S);
- f->numparams=LoadByte(S);
- f->is_vararg=LoadByte(S);
- f->maxstacksize=LoadByte(S);
- LoadCode(S,f);
- LoadConstants(S,f);
- LoadUpvalues(S,f);
- LoadDebug(S,f);
-}
-
-static void checkstring(LoadState *S, const char *s, const char *msg)
-{
- char buff[sizeof(LUA_SIGNATURE)+sizeof(LUAC_DATA)];  /* larger than each */
- LoadVector(S,buff,strlen(s)+1);
- if (strcmp(s,buff)!=0) error(S,msg);
-}
-
-static void fchecksize(LoadState *S, size_t size, const char *tname)
-{
- if (LoadByte(S) != size)
-  error(S,luaO_pushfstring(S->L,"%s size mismatch in",tname));
 }
 
+
+static void LoadCode (LoadState *S, Proto *f) {
+  int n = LoadInt(S);
+  f->code = luaM_newvector(S->L, n, Instruction);
+  f->sizecode = n;
+  LoadVector(S, f->code, n);
+}
+
+
+static void LoadFunction(LoadState *S, Proto *f);
+
+
+static void LoadConstants (LoadState *S, Proto *f) {
+  int i, n;
+  n = LoadInt(S);
+  f->k = luaM_newvector(S->L, n, TValue);
+  f->sizek = n;
+  for (i = 0; i < n; i++)
+    setnilvalue(&f->k[i]);
+  for (i = 0; i < n; i++) {
+    TValue *o = &f->k[i];
+    int t = LoadByte(S);
+    switch (t) {
+    case LUA_TNIL:
+      setnilvalue(o);
+      break;
+    case LUA_TBOOLEAN:
+      setbvalue(o, LoadByte(S));
+      break;
+    case LUA_TNUMFLT:
+      setnvalue(o, LoadNumber(S));
+      break;
+    case LUA_TNUMINT:
+      setivalue(o, LoadInteger(S));
+      break;
+    case LUA_TSHRSTR:
+    case LUA_TLNGSTR:
+      setsvalue2n(S->L, o, LoadString(S));
+      break;
+    default:
+      lua_assert(0);
+    }
+  }
+  n = LoadInt(S);
+  f->p = luaM_newvector(S->L, n, Proto *);
+  f->sizep = n;
+  for (i = 0; i < n; i++)
+    f->p[i] = NULL;
+  for (i = 0; i < n; i++) {
+    f->p[i] = luaF_newproto(S->L);
+    LoadFunction(S, f->p[i]);
+  }
+}
+
+
+static void LoadUpvalues (LoadState *S, Proto *f) {
+  int i, n;
+  n = LoadInt(S);
+  f->upvalues = luaM_newvector(S->L, n, Upvaldesc);
+  f->sizeupvalues = n;
+  for (i = 0; i < n; i++)
+    f->upvalues[i].name = NULL;
+  for (i = 0; i < n; i++) {
+    f->upvalues[i].instack = LoadByte(S);
+    f->upvalues[i].idx = LoadByte(S);
+  }
+}
+
+
+static void LoadDebug (LoadState *S, Proto *f) {
+  int i, n;
+  f->source = LoadString(S);
+  n = LoadInt(S);
+  f->lineinfo = luaM_newvector(S->L, n, int);
+  f->sizelineinfo = n;
+  LoadVector(S, f->lineinfo, n);
+  n = LoadInt(S);
+  f->locvars = luaM_newvector(S->L, n, LocVar);
+  f->sizelocvars = n;
+  for (i = 0; i < n; i++)
+    f->locvars[i].varname = NULL;
+  for (i = 0; i < n; i++) {
+    f->locvars[i].varname = LoadString(S);
+    f->locvars[i].startpc = LoadInt(S);
+    f->locvars[i].endpc = LoadInt(S);
+  }
+  n = LoadInt(S);
+  for (i = 0; i < n; i++)
+    f->upvalues[i].name = LoadString(S);
+}
+
+
+static void LoadFunction (LoadState *S, Proto *f) {
+  f->linedefined = LoadInt(S);
+  f->lastlinedefined = LoadInt(S);
+  f->numparams = LoadByte(S);
+  f->is_vararg = LoadByte(S);
+  f->maxstacksize = LoadByte(S);
+  LoadCode(S, f);
+  LoadConstants(S, f);
+  LoadUpvalues(S, f);
+  LoadDebug(S, f);
+}
+
+
+static void checkstring (LoadState *S, const char *s, const char *msg) {
+  char buff[sizeof(LUA_SIGNATURE) + sizeof(LUAC_DATA)]; /* larger than each */
+  LoadVector(S, buff, strlen(s) + 1);
+  if (strcmp(s, buff) != 0)
+    error(S, msg);
+}
+
+
+static void fchecksize (LoadState *S, size_t size, const char *tname) {
+  if (LoadByte(S) != size)
+    error(S, luaO_pushfstring(S->L, "%s size mismatch in", tname));
+}
+
+
 #define checksize(S,t)	fchecksize(S,sizeof(t),#t)
 
-static void checkHeader(LoadState* S)
-{
- checkstring(S,LUA_SIGNATURE+1,"not a");
- checkstring(S,LUAC_DATA,"corrupted");
- if (LoadByte(S) != LUAC_VERSION) error(S,"version mismatch in");
- if (LoadByte(S) != LUAC_FORMAT) error(S,"format mismatch in");
- checksize(S,int);
- checksize(S,size_t);
- checksize(S,Instruction);
- checksize(S,lua_Integer);
- checksize(S,lua_Number);
- if (LoadInteger(S) != LUAC_INT) error(S,"endianess mismatch in");
- if (LoadNumber(S) != LUAC_NUM) error(S,"float format mismatch in");
+static void checkHeader (LoadState *S) {
+  checkstring(S, LUA_SIGNATURE + 1, "not a");
+  checkstring(S, LUAC_DATA, "corrupted");
+  if (LoadByte(S) != LUAC_VERSION)
+    error(S, "version mismatch in");
+  if (LoadByte(S) != LUAC_FORMAT)
+    error(S, "format mismatch in");
+  checksize(S, int);
+  checksize(S, size_t);
+  checksize(S, Instruction);
+  checksize(S, lua_Integer);
+  checksize(S, lua_Number);
+  if (LoadInteger(S) != LUAC_INT)
+    error(S, "endianess mismatch in");
+  if (LoadNumber(S) != LUAC_NUM)
+    error(S, "float format mismatch in");
 }
 
+
 /*
 ** load precompiled chunk
 */
-Closure* luaU_undump (lua_State* L, ZIO* Z, Mbuffer* buff, const char* name)
-{
- LoadState S;
- Closure* cl;
- if (*name=='@' || *name=='=')
-  S.name=name+1;
- else if (*name==LUA_SIGNATURE[0])
-  S.name="binary string";
- else
-  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);
- cl->l.p=luaF_newproto(L);
- LoadFunction(&S,cl->l.p);
- lua_assert(cl->l.nupvalues==cl->l.p->sizeupvalues);
- luai_verifycode(L,buff,cl->l.p);
- return cl;
+Closure *luaU_undump(lua_State *L, ZIO *Z, Mbuffer *buff,
+                     const char *name) {
+  LoadState S;
+  Closure *cl;
+  if (*name == '@' || *name == '=')
+    S.name = name + 1;
+  else if (*name == LUA_SIGNATURE[0])
+    S.name = "binary string";
+  else
+    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);
+  cl->l.p = luaF_newproto(L);
+  LoadFunction(&S, cl->l.p);
+  lua_assert(cl->l.nupvalues == cl->l.p->sizeupvalues);
+  luai_verifycode(L, buff, cl->l.p);
+  return cl;
 }
+