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/*
** $Id: luacomp.c,v 1.2 2003-12-11 16:53:30 pixel Exp $
** Lua compiler (saves bytecodes to files; also list bytecodes)
** See Copyright Notice in lua.h
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "lua.h"
#include "lauxlib.h"
#include "lfunc.h"
#include "lmem.h"
#include "lobject.h"
#include "lopcodes.h"
#include "lstring.h"
#include "lundump.h"
#ifndef PROGNAME
#define PROGNAME "luacomp" /* program name */
#endif
static const char* progname=PROGNAME; /* actual program name */
static Proto* toproto(lua_State* L, int i)
{
const Closure* c=(const Closure*)lua_topointer(L,i);
return c->l.p;
}
static Proto* combine(lua_State* L, int n)
{
if (n==1)
return toproto(L,-1);
else
{
int i,pc=0;
Proto* f=luaF_newproto(L);
f->source=luaS_newliteral(L,"=(" PROGNAME ")");
f->maxstacksize=1;
f->p=luaM_newvector(L,n,Proto*);
f->sizep=n;
f->sizecode=2*n+1;
f->code=luaM_newvector(L,f->sizecode,Instruction);
for (i=0; i<n; i++)
{
f->p[i]=toproto(L,i-n);
f->code[pc++]=CREATE_ABx(OP_CLOSURE,0,i);
f->code[pc++]=CREATE_ABC(OP_CALL,0,1,1);
}
f->code[pc++]=CREATE_ABC(OP_RETURN,0,1,0);
return f;
}
}
static void strip(lua_State* L, Proto* f)
{
int i,n=f->sizep;
luaM_freearray(L, f->lineinfo, f->sizelineinfo, int);
luaM_freearray(L, f->locvars, f->sizelocvars, struct LocVar);
luaM_freearray(L, f->upvalues, f->sizeupvalues, TString *);
f->lineinfo=NULL; f->sizelineinfo=0;
f->locvars=NULL; f->sizelocvars=0;
f->upvalues=NULL; f->sizeupvalues=0;
f->source=luaS_newliteral(L,"=(none)");
for (i=0; i<n; i++) strip(L,f->p[i]);
}
void luacmain(lua_State * L, int stripping, lua_Chunkwriter w, void * uD) {
Proto * f;
int i;
f = combine(L, 1);
if (stripping)
strip(L, f);
luaU_dump(L, f, w, uD);
}
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