2 ** $Id: ldump.c,v 2.8.1.1 2007/12/27 13:02:25 roberto Exp $
3 ** save precompiled Lua chunks
4 ** See Copyright Notice in lua.h
26 #define DumpMem(b,n,size,D) DumpBlock(b,(n)*(size),D)
27 #define DumpVar(x,D) DumpMem(&x,1,sizeof(x),D)
29 static void DumpBlock(const void* b, size_t size, DumpState* D)
34 D->status=(*D->writer)(D->L,b,size,D->data);
39 static void DumpChar(int y, DumpState* D)
45 static void DumpInt(int x, DumpState* D)
50 static void DumpNumber(lua_Number x, DumpState* D)
55 static void DumpVector(const void* b, int n, size_t size, DumpState* D)
61 static void DumpString(const TString* s, DumpState* D)
63 if (s==NULL || getstr(s)==NULL)
70 size_t size=s->tsv.len+1; /* include trailing '\0' */
72 DumpBlock(getstr(s),size,D);
76 #define DumpCode(f,D) DumpVector(f->code,f->sizecode,sizeof(Instruction),D)
78 static void DumpFunction(const Proto* f, const TString* p, DumpState* D);
80 static void DumpConstants(const Proto* f, DumpState* D)
86 const TValue* o=&f->k[i];
93 DumpChar(bvalue(o),D);
96 DumpNumber(nvalue(o),D);
99 DumpString(rawtsvalue(o),D);
102 lua_assert(0); /* cannot happen */
108 for (i=0; i<n; i++) DumpFunction(f->p[i],f->source,D);
111 static void DumpDebug(const Proto* f, DumpState* D)
114 n= (D->strip) ? 0 : f->sizelineinfo;
115 DumpVector(f->lineinfo,n,sizeof(int),D);
116 n= (D->strip) ? 0 : f->sizelocvars;
120 DumpString(f->locvars[i].varname,D);
121 DumpInt(f->locvars[i].startpc,D);
122 DumpInt(f->locvars[i].endpc,D);
124 n= (D->strip) ? 0 : f->sizeupvalues;
126 for (i=0; i<n; i++) DumpString(f->upvalues[i],D);
129 static void DumpFunction(const Proto* f, const TString* p, DumpState* D)
131 DumpString((f->source==p || D->strip) ? NULL : f->source,D);
132 DumpInt(f->linedefined,D);
133 DumpInt(f->lastlinedefined,D);
135 DumpChar(f->numparams,D);
136 DumpChar(f->is_vararg,D);
137 DumpChar(f->maxstacksize,D);
143 static void DumpHeader(DumpState* D)
145 char h[LUAC_HEADERSIZE];
147 DumpBlock(h,LUAC_HEADERSIZE,D);
151 ** dump Lua function as precompiled chunk
153 int luaU_dump (lua_State* L, const Proto* f, lua_Writer w, void* data, int strip)
162 DumpFunction(f,NULL,&D);