C++ CBotStack::SetError方法代码示例

bool CBotFunction::Execute(CBotVar** ppVars, CBotStack* &pj, CBotVar* pInstance)
{
    CBotStack*  pile = pj->AddStack(this, 2);               // one end of stack local to this function
//  if ( pile == EOX ) return true;

    pile->SetBotCall(m_pProg);                              // bases for routines

    if ( pile->GetState() == 0 )
    {
        if ( !m_Param->Execute(ppVars, pile) ) return false;    // define parameters
        pile->IncState();
    }

    if ( pile->GetState() == 1 && !m_MasterClass.IsEmpty() )
    {
        // makes "this" known
        CBotVar* pThis ;
        if ( pInstance == NULL )
        {
            pThis = CBotVar::Create("this", CBotTypResult( CBotTypClass, m_MasterClass ));
            pThis->SetInit(2);
        }
        else
        {
            pThis = CBotVar::Create("this", CBotTypResult( CBotTypPointer, m_MasterClass ));
            pThis->SetPointer(pInstance);
            pThis->SetInit(2);
        }

//      pThis->SetUniqNum(m_nThisIdent);
        pThis->SetUniqNum(-2);
        pile->AddVar(pThis);

        pile->IncState();
    }

    if ( pile->IfStep() ) return false;

    if ( !m_Block->Execute(pile) )
    {
        if ( pile->GetError() < 0 )
            pile->SetError( 0 );
        else
            return false;
    }

    return pj->Return(pile);
}

bool CBotThrow :: Execute(CBotStack* &pj)
{
    CBotStack*  pile = pj->AddStack(this);
//  if ( pile == EOX ) return true;

    if ( pile->GetState() == 0 )
    {
        if ( !m_Value->Execute(pile) ) return false;
        pile->IncState();
    }

    if ( pile->IfStep() ) return false;

    int val = pile->GetVal();
    if ( val < 0 ) val = TX_BADTHROW;
    pile->SetError( val, &m_token );
    return pj->Return( pile );
}

bool CBotLeftExpr::Execute(CBotStack* &pj, CBotStack* array)
{
    CBotStack*    pile = pj->AddStack();

    CBotVar*     var1 = nullptr;
    CBotVar*     var2 = nullptr;
    // fetch a variable (not copy)
    if (!ExecuteVar(var1, array, nullptr, false)) return false;

    if (pile->IfStep()) return false;

    if (var1)
    {
        var2 = pj->GetVar();    // result on the input stack
        if (var2)
        {
            CBotTypResult t1 = var1->GetTypResult();
            CBotTypResult t2 = var2->GetTypResult();
            if (t2.Eq(CBotTypPointer))
            {
                CBotClass*    c1 = t1.GetClass();
                CBotClass*    c2 = var2->GetClass();
                if ( !c2->IsChildOf(c1))
                {
                    CBotToken* pt = &m_token;
                    pile->SetError(CBotErrBadType1, pt);
                    return pj->Return(pile);    // operation performed
                }
                var1->SetVal(var2);     // set pointer
                var1->SetType(t1);      // keep pointer type
            }
            else
                var1->SetVal(var2);     // do assignment
        }
        pile->SetCopyVar(var1);     // replace the stack with the copy of the variable
                                    // (for name)
    }

    return pj->Return(pile);    // operation performed
}

bool CBotClassInst::Execute(CBotStack* &pj)
{
    CBotVar*    pThis = NULL;

    CBotStack*  pile = pj->AddStack(this);//essential for SetState()
//  if ( pile == EOX ) return true;

    CBotToken*  pt = &m_token;
    CBotClass*  pClass = CBotClass::Find(pt);

    bool bIntrincic = pClass->IsIntrinsic();

    // creates the variable of type pointer to the object

    if ( pile->GetState()==0)
    {
        CBotString  name = m_var->m_token.GetString();
        if ( bIntrincic )
        {
            pThis = CBotVar::Create(name, CBotTypResult( CBotTypIntrinsic, pClass ));
        }
        else
        {
            pThis = CBotVar::Create(name, CBotTypResult( CBotTypPointer, pClass ));
        }

        pThis->SetUniqNum((static_cast<CBotLeftExprVar*>(m_var))->m_nIdent); // its attribute as unique number
        pile->AddVar(pThis);                                    // place on the stack
        pile->IncState();
    }

    if ( pThis == NULL ) pThis = pile->FindVar((static_cast<CBotLeftExprVar*>(m_var))->m_nIdent);

    if ( pile->GetState()<3)
    {
        // ss there an assignment or parameters (contructor)

//      CBotVarClass* pInstance = NULL;

        if ( m_expr != NULL )
        {
            // evaluates the expression for the assignment
            if (!m_expr->Execute(pile)) return false;

            if ( bIntrincic )
            {
                CBotVar*    pv = pile->GetVar();
                if ( pv == NULL || pv->GetPointer() == NULL )
                {
                    pile->SetError(TX_NULLPT, &m_token);
                    return pj->Return(pile);
                }
                pThis->Copy(pile->GetVar(), false);
            }
            else
            {
                CBotVarClass* pInstance;
                pInstance = (static_cast<CBotVarPointer*>(pile->GetVar()))->GetPointer();    // value for the assignment
                pThis->SetPointer(pInstance);
            }
            pThis->SetInit(true);
        }

        else if ( m_hasParams )
        {
            // evaluates the constructor of an instance

            if ( !bIntrincic && pile->GetState() == 1)
            {
                CBotToken*  pt = &m_token;
                CBotClass* pClass = CBotClass::Find(pt);

                // creates an instance of the requested class

                CBotVarClass* pInstance;
                pInstance = static_cast<CBotVarClass*>(CBotVar::Create("", pClass));
                pThis->SetPointer(pInstance);
                delete pInstance;

                pile->IncState();
            }

            CBotVar*    ppVars[1000];
            CBotStack*  pile2 = pile;

            int     i = 0;

            CBotInstr*  p = m_Parameters;
            // evaluates the parameters
            // and places the values ​​on the stack
            // to (can) be interrupted (broken) at any time

            if ( p != NULL) while ( true )
            {
                pile2 = pile2->AddStack();                      // place on the stack for the results
                if ( pile2->GetState() == 0 )
                {
                    if (!p->Execute(pile2)) return false;       // interrupted here?
                    pile2->SetState(1);
                }
//.........这里部分代码省略.........

bool CBotDefArray::Execute(CBotStack* &pj)
{
    CBotStack*    pile1 = pj->AddStack(this);

    CBotStack*    pile  = pile1;

    if (pile1->GetState() == 0)
    {
        // seek the maximum dimension of the table
        CBotInstr*    p  = GetNext3b();                             // the different formulas
        int            nb = 0;

        while (p != nullptr)
        {
            pile = pile->AddStack();                                // little room to work
            nb++;
            if (pile->GetState() == 0)
            {
                if (!p->Execute(pile)) return false;                // size calculation //interrupted?
                pile->IncState();
            }
            p = p->GetNext3b();
        }

        p     = GetNext3b();
        pile = pile1;                                               // returns to the stack
        int     n = 0;
        int     max[100];

        while (p != nullptr)
        {
            pile = pile->AddStack();
            CBotVar*    v = pile->GetVar();                         // result
            max[n] = v->GetValInt();                                // value
            if (max[n]>MAXARRAYSIZE)
            {
                pile->SetError(CBotErrOutArray, &m_token);
                return pj->Return (pile);
            }
            n++;
            p = p->GetNext3b();
        }
        while (n<100) max[n++] = 0;

        m_typevar.SetArray(max);                                    // store the limitations

        // create simply a nullptr pointer
        CBotVar*    var = CBotVar::Create(*(m_var->GetToken()), m_typevar);
        var->SetPointer(nullptr);
        var->SetUniqNum((static_cast<CBotLeftExprVar*>(m_var))->m_nIdent);
        pj->AddVar(var);

#if        STACKMEM
        pile1->AddStack()->Delete();
#else
        delete pile1->AddStack();                                   // need more indices
#endif
        pile1->IncState();
    }

    if (pile1->GetState() == 1)
    {
        if (m_listass != nullptr)                                      // there is the assignment for this table
        {
            CBotVar* pVar = pj->FindVar((static_cast<CBotLeftExprVar*>(m_var))->m_nIdent, false);

            if (!m_listass->Execute(pile1, pVar)) return false;
        }
        pile1->IncState();
    }

    if (pile1->IfStep()) return false;

    if ( m_next2b &&
         !m_next2b->Execute(pile1 )) return false;

    return pj->Return(pile1);
}