/**
\return Returns a LuaStackObject describing the current value.
**/
LuaStackObject LuaStackTableIterator::GetValue()
{
// This function is only active if Reset() has been called head.
luaplus_assert( IsValid() );
return LuaStackObject( m_tableObj.GetState(), m_startStackIndex + 2 );
}
LuaStackObject LuaState::PushCClosure(int (*f)(LuaState*), int n)
{
unsigned char* buffer = (unsigned char*)lua_newuserdata(m_state, sizeof(f));
memcpy(buffer, &f, sizeof(f));
Insert(-n-1);
lua_pushcclosure(m_state, LPCD::LuaStateFunctionDispatcher, n + 1);
return LuaStackObject(this, lua_gettop(m_state));
}
LuaStackObject LuaState::PushVFString(const char *fmt, va_list argp) {
lua_State* L = LuaState_to_lua_State(this);
lua_lock(L);
luaC_checkGC(L);
luaO_pushvfstring(L, fmt, argp);
lua_unlock(L);
return LuaStackObject(this, lua_gettop(LuaState_to_lua_State(this)));
}
LuaStackObject LuaState::PushFString(const char *fmt, ...)
{
lua_State* L = m_state;
va_list argp;
lua_lock(L);
luaC_checkGC(L);
va_start(argp, fmt);
luaO_pushvfstring(L, fmt, argp);
va_end(argp);
lua_unlock(L);
return LuaStackObject(this, lua_gettop(m_state));
}
LuaState::LuaState(LuaState* parentState, bool initStandardLibrary)
{
m_state = lua_newthread(*parentState);
m_ownState = false; // Threads are not closeable.
GetHeadObject()->m_prev = NULL;
GetHeadObject()->m_next = GetTailObject();
GetTailObject()->m_prev = GetHeadObject();
GetTailObject()->m_next = NULL;
m_threadObj = LuaStackObject(parentState, parentState->GetTop());
parentState->Pop();
SetupStateEx();
}
LuaStackObject LuaCall::operator<<(const LuaRun& run)
{
int resultsStackPos = m_state->GetTop() - m_numArgs;
int err = m_state->PCall(m_numArgs, run.m_numResults, run.m_alertStackPos);
if (err != 0)
{
LuaStackObject errObj(m_state, -1);
if (errObj.IsString())
{
// Does this string persist long enough?
luaplus_throw(errObj.GetString());
}
else
{
char buf[200];
sprintf(buf, "unknown lua error, code: %d", err);
luaplus_throw(buf);
}
}
return LuaStackObject(m_state, resultsStackPos);
}
LuaStackObject LuaState::StackTop()
{
return LuaStackObject(this, GetTop());
}
LuaStackObject LuaState::Stack(int index)
{
return LuaStackObject(this, index);
}
int LuaState::Where(int lvl)
{
luaL_where(m_state, lvl);
return LuaStackObject(this, GetTop());
}
LuaStackObject LuaState::NewMetaTable(const char* tname)
{
luaL_newmetatable(m_state, tname);
return LuaStackObject(this, GetTop());
}
