new versions by lhf

lundump.c

@@ -1,6 +1,6 @@
 /*
-** $Id: lundump.c,v 1.39 2001/02/23 17:17:25 roberto Exp roberto $
-** load bytecodes from files
+** $Id: lundump.c,v 1.35 2001/06/28 13:55:17 lhf Exp lhf $
+** load pre-compiled Lua chunks
 ** See Copyright Notice in lua.h
 */
 
@@ -10,6 +10,7 @@
 #define LUA_PRIVATE
 #include "lua.h"
 
+#include "ldebug.h"
 #include "lfunc.h"
 #include "lmem.h"
 #include "lopcodes.h"
@@ -46,7 +47,7 @@ static void LoadBlock (lua_State* L, void* b, size_t size, ZIO* Z, int swap)
 {
  if (swap)
  {
-  l_char *p=(l_char *) b+size-1;
+  l_char *p=(l_char*) b+size-1;
   int n=size;
   while (n--) *p--=(l_char)ezgetc(L,Z);
  }
@@ -58,7 +59,7 @@ static void LoadVector (lua_State* L, void* b, int m, size_t size, ZIO* Z, int s
 {
  if (swap)
  {
-  l_char *q=(l_char *) b;
+  l_char *q=(l_char*) b;
   while (m--)
   {
    l_char *p=q+size-1;
@@ -99,77 +100,92 @@ static TString* LoadString (lua_State* L, ZIO* Z, int swap)
   return NULL;
  else
  {
-  char* s=luaO_openspace(L,size,char);
+  l_char* s=luaO_openspace(L,size,l_char);
   LoadBlock(L,s,size,Z,0);
-  return luaS_newlstr(L,s,size-1);	/* remove trailing l_c('\0') */
+  return luaS_newlstr(L,s,size-1);	/* remove trailing '\0' */
  }
 }
 
-static void LoadCode (lua_State* L, Proto* tf, ZIO* Z, int swap)
+static void LoadCode (lua_State* L, Proto* f, ZIO* Z, int swap)
 {
  int size=LoadInt(L,Z,swap);
- tf->code=luaM_newvector(L,size,Instruction);
- tf->sizecode=size;
- LoadVector(L,tf->code,size,sizeof(*tf->code),Z,swap);
+ f->code=luaM_newvector(L,size,Instruction);
+ f->sizecode=size;
+ LoadVector(L,f->code,size,sizeof(*f->code),Z,swap);
 }
 
-static void LoadLocals (lua_State* L, Proto* tf, ZIO* Z, int swap)
+static void LoadLocals (lua_State* L, Proto* f, ZIO* Z, int swap)
 {
  int i,n;
  n=LoadInt(L,Z,swap);
- tf->locvars=luaM_newvector(L,n,LocVar);
- tf->sizelocvars=n;
+ f->locvars=luaM_newvector(L,n,LocVar);
+ f->sizelocvars=n;
  for (i=0; i<n; i++)
  {
-  tf->locvars[i].varname=LoadString(L,Z,swap);
-  tf->locvars[i].startpc=LoadInt(L,Z,swap);
-  tf->locvars[i].endpc=LoadInt(L,Z,swap);
+  f->locvars[i].varname=LoadString(L,Z,swap);
+  f->locvars[i].startpc=LoadInt(L,Z,swap);
+  f->locvars[i].endpc=LoadInt(L,Z,swap);
  }
 }
 
-static void LoadLines (lua_State* L, Proto* tf, ZIO* Z, int swap)
+static void LoadLines (lua_State* L, Proto* f, ZIO* Z, int swap)
 {
  int n;
  n=LoadInt(L,Z,swap);
- tf->lineinfo=luaM_newvector(L,n,int);
- tf->sizelineinfo=n;
- LoadVector(L,tf->lineinfo,n,sizeof(*tf->lineinfo),Z,swap);
+ f->lineinfo=luaM_newvector(L,n,int);
+ f->sizelineinfo=n;
+ LoadVector(L,f->lineinfo,n,sizeof(*f->lineinfo),Z,swap);
 }
 
 static Proto* LoadFunction (lua_State* L, ZIO* Z, int swap);
 
-static void LoadConstants (lua_State* L, Proto* tf, ZIO* Z, int swap)
+static void LoadConstants (lua_State* L, Proto* f, ZIO* Z, int swap)
 {
  int i,n;
  n=LoadInt(L,Z,swap);
- tf->kstr=luaM_newvector(L,n,TString*);
- tf->sizekstr=n;
+ f->k=luaM_newvector(L,n,TObject);
+ f->sizek=n;
  for (i=0; i<n; i++)
-  tf->kstr[i]=LoadString(L,Z,swap);
- n=LoadInt(L,Z,swap);
- tf->knum=luaM_newvector(L,n,lua_Number);
- tf->sizeknum=n;
- LoadVector(L,tf->knum,n,sizeof(*tf->knum),Z,swap);
+ {
+  TObject* o=&f->k[i];
+  ttype(o)=LoadByte(L,Z);
+  switch (ttype(o))
+  {
+   case LUA_TNUMBER:
+	nvalue(o)=LoadNumber(L,Z,swap);
+	break;
+   case LUA_TSTRING:
+	tsvalue(o)=LoadString(L,Z,swap);
+	break;
+   default:
+	luaO_verror(L,l_s("bad constant type (%d) in `%.99s'"),ttype(o),ZNAME(Z));
+	break;
+  }
+ }
  n=LoadInt(L,Z,swap);
- tf->kproto=luaM_newvector(L,n,Proto*);
- tf->sizekproto=n;
+ f->p=luaM_newvector(L,n,Proto*);
+ f->sizep=n;
  for (i=0; i<n; i++)
-  tf->kproto[i]=LoadFunction(L,Z,swap);
+  f->p[i]=LoadFunction(L,Z,swap);
 }
 
 static Proto* LoadFunction (lua_State* L, ZIO* Z, int swap)
 {
- Proto* tf=luaF_newproto(L);
- tf->source=LoadString(L,Z,swap);
- tf->lineDefined=LoadInt(L,Z,swap);
- tf->numparams=LoadInt(L,Z,swap);
- tf->is_vararg=LoadByte(L,Z);
- tf->maxstacksize=LoadInt(L,Z,swap);
- LoadLocals(L,tf,Z,swap);
- LoadLines(L,tf,Z,swap);
- LoadConstants(L,tf,Z,swap);
- LoadCode(L,tf,Z,swap);
- return tf;
+ Proto* f=luaF_newproto(L);
+ f->source=LoadString(L,Z,swap);
+ f->lineDefined=LoadInt(L,Z,swap);
+ f->nupvalues=LoadInt(L,Z,swap);
+ f->numparams=LoadInt(L,Z,swap);
+ f->is_vararg=LoadByte(L,Z);
+ f->maxstacksize=LoadInt(L,Z,swap);
+ LoadLocals(L,f,Z,swap);
+ LoadLines(L,f,Z,swap);
+ LoadConstants(L,f,Z,swap);
+ LoadCode(L,f,Z,swap);
+#ifndef TRUST_BINARIES
+ if (luaG_checkcode(f)==0) luaO_verror(L,l_s("bad code in `%.99s'"),ZNAME(Z));
+#endif
+ return f;
 }
 
 static void LoadSignature (lua_State* L, ZIO* Z)
@@ -194,7 +210,7 @@ static void TestSize (lua_State* L, int s, const l_char* what, ZIO* Z)
 static int LoadHeader (lua_State* L, ZIO* Z)
 {
  int version,swap;
- lua_Number f=0,tf=TEST_NUMBER;
+ lua_Number x=0,tx=TEST_NUMBER;
  LoadSignature(L,Z);
  version=ezgetc(L,Z);
  if (version>VERSION)
@@ -205,19 +221,20 @@ static int LoadHeader (lua_State* L, ZIO* Z)
   luaO_verror(L,l_s("`%.99s' too old:\n")
 	l_s("  read version %d.%d; expected at least %d.%d"),
 	ZNAME(Z),V(version),V(VERSION));
- swap=(luaU_endianess()!=ezgetc(L,Z));	/* need to swap bytes? */
+ swap=(luaU_endianness()!=ezgetc(L,Z));	/* need to swap bytes? */
  TESTSIZE(sizeof(int));
  TESTSIZE(sizeof(size_t));
  TESTSIZE(sizeof(Instruction));
- TESTSIZE(SIZE_INSTRUCTION);
  TESTSIZE(SIZE_OP);
+ TESTSIZE(SIZE_A);
  TESTSIZE(SIZE_B);
+ TESTSIZE(SIZE_C);
  TESTSIZE(sizeof(lua_Number));
- f=LoadNumber(L,Z,swap);
- if ((long)f!=(long)tf)		/* disregard errors in last bit of fraction */
+ x=LoadNumber(L,Z,swap);
+ if ((long)x!=(long)tx)		/* disregard errors in last bits of fraction */
   luaO_verror(L,l_s("unknown number format in `%.99s':\n")
       l_s("  read ") l_s(LUA_NUMBER_FMT) l_s("; expected ") l_s(LUA_NUMBER_FMT),
-      ZNAME(Z),f,tf);
+      ZNAME(Z),x,tx);
  return swap;
 }
 
@@ -232,20 +249,20 @@ static Proto* LoadChunk (lua_State* L, ZIO* Z)
 */
 Proto* luaU_undump (lua_State* L, ZIO* Z)
 {
- Proto* tf=NULL;
+ Proto* f=NULL;
  int c=zgetc(Z);
  if (c==ID_CHUNK)
-  tf=LoadChunk(L,Z);
+  f=LoadChunk(L,Z);
  c=zgetc(Z);
  if (c!=EOZ)
   luaO_verror(L,l_s("`%.99s' apparently contains more than one chunk"),ZNAME(Z));
- return tf;
+ return f;
 }
 
 /*
 ** find byte order
 */
-int luaU_endianess (void)
+int luaU_endianness (void)
 {
  int x=1;
  return *(l_char*)&x;

lundump.h

@@ -1,5 +1,5 @@
 /*
-** $Id: lundump.h,v 1.20 2001/02/23 17:17:25 roberto Exp roberto $
+** $Id: lundump.h,v 1.23 2001/06/28 13:55:17 lhf Exp $
 ** load pre-compiled Lua chunks
 ** See Copyright Notice in lua.h
 */
@@ -14,18 +14,14 @@
 Proto* luaU_undump (lua_State* L, ZIO* Z);
 
 /* find byte order */
-int luaU_endianess (void);
+int luaU_endianness (void);
 
 /* definitions for headers of binary files */
-#define	VERSION		0x40		/* last format change was in 4.0 */
-#define	VERSION0	0x40		/* last major  change was in 4.0 */
+#define	VERSION		0x41		/* last format change was in 4.1 */
+#define	VERSION0	0x41		/* last major  change was in 4.1 */
 #define ID_CHUNK	27		/* binary files start with ESC... */
 #define	SIGNATURE	"Lua"		/* ...followed by this signature */
 
-/* formats for error messages */
-#define SOURCE		tf->lineDefined,tf->source->str
-#define IN		tf,SOURCE
-
 /* a multiple of PI for testing native format */
 /* multiplying by 1E8 gives non-trivial integer values */
 #define	TEST_NUMBER	3.14159265358979323846E8