Method coresumeWithTraceback

source/core/StarLua.cpp:721–753

}

int LuaEngine::coresumeWithTraceback(lua_State* state) {
  lua_State* co = lua_tothread(state, 1);
  if (!co) {
    lua_checkstack(state, 2);
    lua_pushboolean(state, 0);
    lua_pushliteral(state, "bad argument #1 to 'resume' (thread expected)");
    return 2;
  }

  int args = lua_gettop(state) - 1;
  lua_checkstack(co, args);
  if (lua_status(co) == LUA_OK && lua_gettop(co) == 0) {
    lua_checkstack(state, 2);
    lua_pushboolean(state, 0);
    lua_pushliteral(state, "cannot resume dead coroutine");
    return 2;
  }

  lua_xmove(state, co, args);
  int status = lua_resume(co, state, args);
  if (status == LUA_OK || status == LUA_YIELD) {
    int res = lua_gettop(co);
    lua_checkstack(state, res + 1);
    lua_pushboolean(state, 1);
    lua_xmove(co, state, res);
    return res + 1;
  } else {
    lua_checkstack(state, 2);
    lua_pushboolean(state, 0);
    propagateErrorWithTraceback(co, state);
    return 2;
  }
}

void LuaEngine::propagateErrorWithTraceback(lua_State* from, lua_State* to) {
  if (const char* error = lua_tostring(from, -1)) {