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Diffstat (limited to 'etc/noparser.c')
-rw-r--r--etc/noparser.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/etc/noparser.c b/etc/noparser.c
new file mode 100644
index 0000000..13ba546
--- /dev/null
+++ b/etc/noparser.c
@@ -0,0 +1,50 @@
+/*
+* The code below can be used to make a Lua core that does not contain the
+* parsing modules (lcode, llex, lparser), which represent 35% of the total core.
+* You'll only be able to load binary files and strings, precompiled with luac.
+* (Of course, you'll have to build luac with the original parsing modules!)
+*
+* To use this module, simply compile it ("make noparser" does that) and list
+* its object file before the Lua libraries. The linker should then not load
+* the parsing modules. To try it, do "make luab".
+*
+* If you also want to avoid the dump module (ldump.o), define NODUMP.
+* #define NODUMP
+*/
+
+#define LUA_CORE
+
+#include "llex.h"
+#include "lparser.h"
+#include "lzio.h"
+
+LUAI_FUNC void luaX_init (lua_State *L) {
+ UNUSED(L);
+}
+
+LUAI_FUNC Proto *luaY_parser (lua_State *L, ZIO *z, Mbuffer *buff, const char *name) {
+ UNUSED(z);
+ UNUSED(buff);
+ UNUSED(name);
+ lua_pushliteral(L,"parser not loaded");
+ lua_error(L);
+ return NULL;
+}
+
+#ifdef NODUMP
+#include "lundump.h"
+
+LUAI_FUNC int luaU_dump (lua_State* L, const Proto* f, lua_Writer w, void* data, int strip) {
+ UNUSED(f);
+ UNUSED(w);
+ UNUSED(data);
+ UNUSED(strip);
+#if 1
+ UNUSED(L);
+ return 0;
+#else
+ lua_pushliteral(L,"dumper not loaded");
+ lua_error(L);
+#endif
+}
+#endif