From 2753134a3800eb28185502d68c28d9225420bd04 Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Wed, 16 Nov 2005 09:55:07 -0200
Subject: new versions by lhf

---
 ldump.c | 129 ++++++++++++++++++++++++++++------------------------------------
 1 file changed, 57 insertions(+), 72 deletions(-)

(limited to 'ldump.c')

diff --git a/ldump.c b/ldump.c
index c453175d..eff2c85c 100644
--- a/ldump.c
+++ b/ldump.c
@@ -1,6 +1,6 @@
 /*
-** $Id: ldump.c,v 2.5 2005/05/05 20:47:02 roberto Exp roberto $
-** save pre-compiled Lua chunks
+** $Id: ldump.c,v 1.13 2005/11/01 17:04:55 lhf Exp lhf $
+** save precompiled Lua chunks
 ** See Copyright Notice in lua.h
 */
 
@@ -12,13 +12,9 @@
 #include "lua.h"
 
 #include "lobject.h"
-#include "lopcodes.h"
 #include "lstate.h"
 #include "lundump.h"
 
-#define DumpVector(b,n,size,D)	DumpBlock(b,(n)*(size),D)
-#define DumpLiteral(s,D)	DumpBlock("" s,(sizeof(s))-1,D)
-
 typedef struct {
  lua_State* L;
  lua_Writer writer;
@@ -27,6 +23,9 @@ typedef struct {
  int status;
 } DumpState;
 
+#define DumpMem(b,n,size,D)	DumpBlock(b,(n)*(size),D)
+#define DumpVar(x,D)	 	DumpMem(&x,1,sizeof(x),D)
+
 static void DumpBlock(const void* b, size_t size, DumpState* D)
 {
  if (D->status==0)
@@ -37,135 +36,121 @@ static void DumpBlock(const void* b, size_t size, DumpState* D)
  }
 }
 
-static void DumpByte(int y, DumpState* D)
+static void DumpChar(int y, DumpState* D)
 {
  char x=(char)y;
- DumpBlock(&x,sizeof(x),D);
+ DumpVar(x,D);
 }
 
 static void DumpInt(int x, DumpState* D)
 {
- DumpBlock(&x,sizeof(x),D);
+ DumpVar(x,D);
 }
 
-static void DumpSize(size_t x, DumpState* D)
+static void DumpNumber(lua_Number x, DumpState* D)
 {
- DumpBlock(&x,sizeof(x),D);
+ DumpVar(x,D);
 }
 
-static void DumpNumber(lua_Number x, DumpState* D)
+static void DumpVector(const void* b, int n, size_t size, DumpState* D)
 {
- DumpBlock(&x,sizeof(x),D);
+ DumpInt(n,D);
+ DumpMem(b,n,size,D);
 }
 
 static void DumpString(const TString* s, DumpState* D)
 {
  if (s==NULL || getstr(s)==NULL)
-  DumpSize(0,D);
+ {
+  size_t size=0;
+  DumpVar(size,D);
+ }
  else
  {
   size_t size=s->tsv.len+1;		/* include trailing '\0' */
-  DumpSize(size,D);
+  DumpVar(size,D);
   DumpBlock(getstr(s),size,D);
  }
 }
 
-static void DumpCode(const Proto* f, DumpState* D)
-{
- DumpInt(f->sizecode,D);
- DumpVector(f->code,f->sizecode,sizeof(*f->code),D);
-}
-
-static void DumpLocals(const Proto* f, DumpState* D)
-{
- int i,n=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);
- }
-}
-
-static void DumpLines(const Proto* f, DumpState* D)
-{
- DumpInt(f->sizelineinfo,D);
- DumpVector(f->lineinfo,f->sizelineinfo,sizeof(*f->lineinfo),D);
-}
-
-static void DumpUpvalues(const Proto* f, DumpState* D)
-{
- int i,n=f->sizeupvalues;
- DumpInt(n,D);
- for (i=0; i<n; i++) DumpString(f->upvalues[i],D);
-}
+#define DumpCode(f,D)	 DumpVector(f->code,f->sizecode,sizeof(Instruction),D)
 
 static void DumpFunction(const Proto* f, const TString* p, DumpState* D);
 
 static void DumpConstants(const Proto* f, DumpState* D)
 {
- int i,n;
- DumpInt(n=f->sizek,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);
+  DumpChar(ttype(o),D);
   switch (ttype(o))
   {
+   case LUA_TNIL:
+	break;
+   case LUA_TBOOLEAN:
+	DumpChar(bvalue(o),D);
+	break;
    case LUA_TNUMBER:
 	DumpNumber(nvalue(o),D);
 	break;
    case LUA_TSTRING:
 	DumpString(rawtsvalue(o),D);
 	break;
-   case LUA_TNIL:
-	break;
-   case LUA_TBOOLEAN:
-        DumpByte(bvalue(o),D);
-        break;
    default:
 	lua_assert(0);			/* cannot happen */
 	break;
   }
  }
- DumpInt(n=f->sizep,D);
+ n=f->sizep;
+ DumpInt(n,D);
  for (i=0; i<n; i++) DumpFunction(f->p[i],f->source,D);
 }
 
+static void DumpDebug(const Proto* f, DumpState* D)
+{
+ int i,n;
+ n= (D->strip) ? 0 : f->sizelineinfo;
+ DumpVector(f->lineinfo,n,sizeof(int),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],D);
+}
+
 static void DumpFunction(const Proto* f, const TString* p, DumpState* D)
 {
  DumpString((f->source==p) ? NULL : f->source,D);
  DumpInt(f->linedefined,D);
  DumpInt(f->lastlinedefined,D);
- DumpByte(f->nups,D);
- DumpByte(f->numparams,D);
- DumpByte(f->is_vararg,D);
- DumpByte(f->maxstacksize,D);
- if (D->strip) DumpInt(0,D); else DumpLines(f,D);
- if (D->strip) DumpInt(0,D); else DumpLocals(f,D);
- if (D->strip) DumpInt(0,D); else DumpUpvalues(f,D);
- DumpConstants(f,D);
+ DumpChar(f->nups,D);
+ DumpChar(f->numparams,D);
+ DumpChar(f->is_vararg,D);
+ DumpChar(f->maxstacksize,D);
  DumpCode(f,D);
+ DumpConstants(f,D);
+ DumpDebug(f,D);
 }
 
 static void DumpHeader(DumpState* D)
 {
- DumpLiteral(LUA_SIGNATURE,D);
- DumpByte(VERSION,D);
- DumpByte(luaU_endianness(),D);
- DumpByte(sizeof(int),D);
- DumpByte(sizeof(size_t),D);
- DumpByte(sizeof(Instruction),D);
- DumpByte(sizeof(lua_Number),D);
- DumpNumber(TEST_NUMBER,D);
+ char h[LUAC_HEADERSIZE];
+ luaU_header(h);
+ DumpBlock(h,LUAC_HEADERSIZE,D);
 }
 
 /*
 ** dump Lua function as precompiled chunk
 */
-int luaU_dump (lua_State* L, const Proto* f, lua_Writer w, void* data,
-                             int strip)
+int luaU_dump (lua_State* L, const Proto* f, lua_Writer w, void* data, int strip)
 {
  DumpState D;
  D.L=L;
-- 
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