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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186/*** save precompiled Lua chunks** See Copyright Notice in lua.h*/
#include <stddef.h>
#define ldump_c#define LUA_CORE
#include "lua.h"
#include "lobject.h"#include "lstate.h"#include "lundump.h"
#ifndef LUA_DISABLE_BYTECODE
typedef struct { lua_State* L; lua_Writer writer; void* data; int strip; 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) { lua_unlock(D->L); D->status=(*D->writer)(D->L,b,size,D->data); lua_lock(D->L); }}
static void DumpChar(int y, DumpState* D){ char x=(char)y; 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 DumpVector(const void* b, int n, size_t size, DumpState* D){ DumpInt(n,D); DumpMem(b,n,size,D);}
static void DumpString(const TString* s, DumpState* D){ if (s==NULL || getstr(s)==NULL) { size_t size=0; DumpVar(size,D); } else { size_t size=s->tsv.len+1; /* include trailing '\0' */ DumpVar(size,D); DumpBlock(getstr(s),size,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=f->sizek; DumpInt(n,D); for (i=0; i<n; i++) { const TValue* o=&f->k[i]; 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; default: lua_assert(0); /* cannot happen */ break; } } 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;#ifdef LUA_OPTIMIZE_DEBUG n = (D->strip || f->packedlineinfo == NULL) ? 0: f->sizelineinfo; DumpInt(n,D); if (n) { DumpBlock(f->packedlineinfo, n, D); }#else n= (D->strip) ? 0 : f->sizelineinfo; DumpVector(f->lineinfo,n,sizeof(int),D);#endif 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 || D->strip) ? NULL : f->source,D); DumpInt(f->linedefined,D); DumpInt(f->lastlinedefined,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){ 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){ DumpState D; D.L=L; D.writer=w; D.data=data; D.strip=strip; D.status=0; DumpHeader(&D); DumpFunction(f,NULL,&D); return D.status;}#else /* LUA_DISABLE_BYTECODE */#include "lauxlib.h"int luaU_dump (lua_State* L, const Proto* f, lua_Writer w, void* data, int strip){ (void) f; (void) w; (void) data; (void) strip; return luaL_error(L, " bytecode not supported");}#endif