etc/noparser.c

   1 /*
   2 * The code below can be used to make a Lua core that does not contain the
   3 * parsing modules (lcode, llex, lparser), which represent 35% of the total core.
   4 * You'll only be able to load binary files and strings, precompiled with luac.
   5 * (Of course, you'll have to build luac with the original parsing modules!)
   6 *
   7 * To use this module, simply compile it ("make noparser" does that) and list
   8 * its object file before the Lua libraries. The linker should then not load
   9 * the parsing modules. To try it, do "make luab".
  10 *
  11 * If you also want to avoid the dump module (ldump.o), define NODUMP.
  12 * #define NODUMP
  13 */
  14
  15 #define LUA_CORE
  16
  17 #include "llex.h"
  18 #include "lparser.h"
  19 #include "lzio.h"
  20
  21 LUAI_FUNC void luaX_init (lua_State *L) {
  22   UNUSED(L);
  23 }
  24
  25 LUAI_FUNC Proto *luaY_parser (lua_State *L, ZIO *z, Mbuffer *buff, const char *name) {
  26   UNUSED(z);
  27   UNUSED(buff);
  28   UNUSED(name);
  29   lua_pushliteral(L,"parser not loaded");
  30   lua_error(L);
  31   return NULL;
  32 }
  33
  34 #ifdef NODUMP
  35 #include "lundump.h"
  36
  37 LUAI_FUNC int luaU_dump (lua_State* L, const Proto* f, lua_Writer w, void* data, int strip) {
  38   UNUSED(f);
  39   UNUSED(w);
  40   UNUSED(data);
  41   UNUSED(strip);
  42 #if 1
  43   UNUSED(L);
  44   return 0;
  45 #else
  46   lua_pushliteral(L,"dumper not loaded");
  47   lua_error(L);
  48 #endif
  49 }
  50 #endif