2 ** require("upb.pb") -- A Lua extension for upb.pb.
4 ** Exposes all the types defined in upb/pb/{*}.h
5 ** Also defines a few convenience functions on top.
8 #include "upb/bindings/lua/upb.h"
9 #include "upb/decode.h"
10 #include "upb/encode.h"
12 #define LUPB_PBDECODERMETHOD "lupb.pb.decodermethod"
14 static int lupb_pb_decode(lua_State *L) {
16 const upb_msglayout *layout;
17 upb_msg *msg = lupb_msg_checkmsg2(L, 1, &layout);
18 const char *pb = lua_tolstring(L, 2, &len);
20 upb_decode(pb, len, msg, layout, lupb_arena_get(L));
21 /* TODO(haberman): check for error. */
26 static int lupb_pb_encode(lua_State *L) {
27 const upb_msglayout *layout;
28 const upb_msg *msg = lupb_msg_checkmsg2(L, 1, &layout);
29 upb_arena *arena = upb_arena_new();
33 result = upb_encode(msg, (const void*)layout, arena, &size);
35 /* Free resources before we potentially bail on error. */
36 lua_pushlstring(L, result, size);
37 upb_arena_free(arena);
38 /* TODO(haberman): check for error. */
43 static const struct luaL_Reg toplevel_m[] = {
44 {"decode", lupb_pb_decode},
45 {"encode", lupb_pb_encode},
49 int luaopen_upb_pb_c(lua_State *L) {
50 static char module_key;
51 if (lupb_openlib(L, &module_key, "upb.pb_c", toplevel_m)) {