Пример #1
0
CBotVar* CBotClass::GetItemRef(int nIdent)
{
    CBotVar*    p = m_pVar;

    while ( p != NULL )
    {
        if ( p->GetUniqNum() == nIdent ) return p;
        p = p->GetNext();
    }
    if ( m_pParent != NULL ) return m_pParent->GetItemRef(nIdent);
    return NULL;
}
Пример #2
0
CBotVar* CBotStack::FindVar(long ident, bool bUpdate, bool bModif)
{
    CBotStack*    p = this;
    while (p != NULL)
    {
        CBotVar*    pp = p->m_listVar;
        while ( pp != NULL)
        {
            if (pp->GetUniqNum() == ident)
            {
                if ( bUpdate ) 
                    pp->Maj(m_pUser, false);

                return pp;
            }
            pp = pp->m_next;
        }
        p = p->m_prev;
    }
    return NULL;
}
Пример #3
0
CBotLeftExpr* CBotLeftExpr::Compile(CBotToken* &p, CBotCStack* pStack)
{
    CBotCStack* pStk = pStack->TokenStack();

    pStk->SetStartError(p->GetStart());

    // is it a variable name?
    if (p->GetType() == TokenTypVar)
    {
        CBotLeftExpr* inst = new CBotLeftExpr();    // creates the object

        inst->SetToken(p);

        CBotVar*     var;

        if (nullptr != (var = pStk->FindVar(p)))   // seek if known variable
        {
            inst->m_nIdent = var->GetUniqNum();
            if (inst->m_nIdent > 0 && inst->m_nIdent < 9000)
            {
                if (CBotFieldExpr::CheckProtectionError(pStk, nullptr, var, CBotVar::ProtectionLevel::ReadOnly))
                {
                    pStk->SetError(CBotErrPrivate, p);
                    goto err;
                }
                // this is an element of the current class
                // adds the equivalent of this. before
                CBotToken pthis("this");
                inst->SetToken(&pthis);
                inst->m_nIdent = -2;    // indent for this

                CBotFieldExpr* i = new CBotFieldExpr();     // new element
                i->SetToken(p);     // keeps the name of the token
                inst->AddNext3(i);  // add after

                var = pStk->FindVar(pthis);
                var = var->GetItem(p->GetString());
                i->SetUniqNum(var->GetUniqNum());
            }
            p = p->GetNext();   // next token

            while (true)
            {
                if (var->GetType() == CBotTypArrayPointer)
                {
                    if (IsOfType( p, ID_OPBRK ))
                    {
                        CBotIndexExpr* i = new CBotIndexExpr();
                        i->m_expr = CBotExpression::Compile(p, pStk);
                        inst->AddNext3(i);  // add to the chain

                        var = (static_cast<CBotVarArray*>(var))->GetItem(0,true);    // gets the component [0]

                        if (i->m_expr == nullptr)
                        {
                            pStk->SetError(CBotErrBadIndex, p->GetStart());
                            goto err;
                        }

                        if (!pStk->IsOk() || !IsOfType( p, ID_CLBRK ))
                        {
                            pStk->SetError(CBotErrCloseIndex, p->GetStart());
                            goto err;
                        }
                        continue;
                    }
                }

                if (var->GetType(CBotVar::GetTypeMode::CLASS_AS_POINTER) == CBotTypPointer)                // for classes
                {
                    if (IsOfType(p, ID_DOT))
                    {
                        CBotToken* pp = p;

                        CBotFieldExpr* i = new CBotFieldExpr();            // new element
                        i->SetToken(pp);                                // keeps the name of the token
                        inst->AddNext3(i);                                // adds after

                        if (p->GetType() == TokenTypVar)                // must be a name
                        {
                            CBotVar*   preVar = var;
                            var = var->GetItem(p->GetString());            // get item correspondent
                            if (var != nullptr)
                            {
                                if (CBotFieldExpr::CheckProtectionError(pStk, preVar, var,
                                                                        CBotVar::ProtectionLevel::ReadOnly))
                                {
                                    pStk->SetError(CBotErrPrivate, pp);
                                    goto err;
                                }

                                i->SetUniqNum(var->GetUniqNum());
                                p = p->GetNext();                        // skips the name
                                continue;
                            }
                            pStk->SetError(CBotErrUndefItem, p);
                        }
                        pStk->SetError(CBotErrUndefClass, p->GetStart());
                        goto err;
                    }
                }
                break;
            }


            if (pStk->IsOk()) return static_cast<CBotLeftExpr*> (pStack->Return(inst, pStk));
        }
        pStk->SetError(CBotErrUndefVar, p);
err:
        delete inst;
        return static_cast<CBotLeftExpr*> ( pStack->Return(nullptr, pStk));
    }

    return static_cast<CBotLeftExpr*> ( pStack->Return(nullptr, pStk));
}
Пример #4
0
CBotInstr* CBotExprRetVar::Compile(CBotToken*& p, CBotCStack* pStack, bool bMethodsOnly)
{
    if (p->GetType() == ID_DOT)
    {
        CBotVar*     var = pStack->GetVar();

        if (var == nullptr) return nullptr;

        CBotCStack* pStk = pStack->TokenStack();
        CBotInstr* inst = new CBotExprRetVar();

        while (true)
        {
            pStk->SetStartError(p->GetStart());
            if (var->GetType() == CBotTypArrayPointer)
            {
                if (bMethodsOnly) goto err;

                if (IsOfType( p, ID_OPBRK ))
                {
                    CBotIndexExpr* i = new CBotIndexExpr();
                    i->m_expr = CBotExpression::Compile(p, pStk);
                    inst->AddNext3(i);

                    var = var->GetItem(0,true);

                    if (i->m_expr == nullptr || pStk->GetType() != CBotTypInt)
                    {
                        pStk->SetError(CBotErrBadIndex, p->GetStart());
                        goto err;
                    }
                    if (!pStk->IsOk() || !IsOfType( p, ID_CLBRK ))
                    {
                        pStk->SetError(CBotErrCloseIndex, p->GetStart());
                        goto err;
                    }
                    continue;
                }
            }
            if (var->GetType(CBotVar::GetTypeMode::CLASS_AS_POINTER) == CBotTypPointer)
            {
                if (IsOfType(p, ID_DOT))
                {
                    CBotToken* pp = p;

                    if (p->GetType() == TokenTypVar)
                    {
                        if (p->GetNext()->GetType() == ID_OPENPAR)
                        {
                            CBotInstr* i = CBotInstrMethode::Compile(p, pStk, var, bMethodsOnly);
                            if (!pStk->IsOk()) goto err;
                            inst->AddNext3(i);
                            return pStack->Return(inst, pStk);
                        }
                        else if (bMethodsOnly)
                        {
                            p = p->GetPrev();
                            goto err;
                        }
                        else
                        {
                            CBotFieldExpr* i = new CBotFieldExpr();
                            i->SetToken(pp);
                            inst->AddNext3(i);
                            CBotVar*   preVar = var;
                            var = var->GetItem(p->GetString());
                            if (var != nullptr)
                            {
                                i->SetUniqNum(var->GetUniqNum());
                                if (CBotFieldExpr::CheckProtectionError(pStk, preVar, var))
                                {
                                    pStk->SetError(CBotErrPrivate, pp);
                                    goto err;
                                }
                            }
                        }

                        if (var != nullptr)
                        {
                            p = p->GetNext();
                            continue;
                        }
                        pStk->SetError(CBotErrUndefItem, p);
                        goto err;
                    }
                    pStk->SetError(CBotErrUndefClass, p);
                    goto err;
                }
            }
            break;
        }

        pStk->SetCopyVar(var);
        if (pStk->IsOk()) return pStack->Return(inst, pStk);

        pStk->SetError(CBotErrUndefVar, p);
err:
        delete inst;
        return pStack->Return(nullptr, pStk);
    }
    return nullptr;
}
Пример #5
0
bool CBotClass::CompileDefItem(CBotToken* &p, CBotCStack* pStack, bool bSecond)
{
    bool    bStatic = false;
    int     mProtect = PR_PUBLIC;
    bool    bSynchro = false;

    while (IsOfType(p, ID_SEP)) ;

    CBotTypResult   type( -1 );

    if ( IsOfType(p, ID_SYNCHO) ) bSynchro = true;
    CBotToken*      pBase = p;

    if ( IsOfType(p, ID_STATIC) ) bStatic = true;
    if ( IsOfType(p, ID_PUBLIC) ) mProtect = PR_PUBLIC;
    if ( IsOfType(p, ID_PRIVATE) ) mProtect = PR_PRIVATE;
    if ( IsOfType(p, ID_PROTECTED) ) mProtect = PR_PROTECT;
    if ( IsOfType(p, ID_STATIC) ) bStatic = true;

//  CBotClass* pClass = NULL;
    type = TypeParam(p, pStack);        // type of the result

    if ( type.Eq(-1) )
    {
        pStack->SetError(TX_NOTYP, p);
        return false;
    }

    while (pStack->IsOk()) 
    {
        CBotToken*  pp = p;
        IsOfType(p, ID_NOT);    // skips ~ eventual (destructor)

        if (IsOfType(p, TokenTypVar))
        {
            CBotInstr* limites = NULL;
            while ( IsOfType( p, ID_OPBRK ) )   // a table?
            {
                CBotInstr* i = NULL;

                if ( p->GetType() != ID_CLBRK )
                    i = CBotExpression::Compile( p, pStack );           // expression for the value
                else
                    i = new CBotEmpty();                            // special if not a formula

                type = CBotTypResult(CBotTypArrayPointer, type);

                if (!pStack->IsOk() || !IsOfType( p, ID_CLBRK ) )
                {
                    pStack->SetError(TX_CLBRK, p->GetStart());
                    return false;
                }

/*              CBotVar* pv = pStack->GetVar();
                if ( pv->GetType()>= CBotTypBoolean )
                {
                    pStack->SetError(TX_BADTYPE, p->GetStart());
                    return false;
                }*/

                if (limites == NULL) limites = i;
                else limites->AddNext3(i);
            }

            if ( p->GetType() == ID_OPENPAR )
            {
                if ( !bSecond )
                {
                    p = pBase;
                    CBotFunction* f = 
                    CBotFunction::Compile1(p, pStack, this);

                    if ( f == NULL ) return false;

                    if (m_pMethod == NULL) m_pMethod = f;
                    else m_pMethod->AddNext(f);
                }
                else
                {
                    // return a method precompiled in pass 1
                    CBotFunction*   pf = m_pMethod;
                    CBotFunction*   prev = NULL;
                    while ( pf != NULL ) 
                    {
                        if (pf->GetName() == pp->GetString()) break;
                        prev = pf;
                        pf = pf->Next();
                    }

                    bool bConstructor = (pp->GetString() == GetName());
                    CBotCStack* pile = pStack->TokenStack(NULL, true);

                    // make "this" known
                    CBotToken TokenThis(CBotString("this"), CBotString());
                    CBotVar* pThis = CBotVar::Create(&TokenThis, CBotTypResult( CBotTypClass, this ) );
                    pThis->SetUniqNum(-2);
                    pile->AddVar(pThis);

                    if ( m_pParent )
                    {
                        // makes "super" known
                        CBotToken TokenSuper(CBotString("super"), CBotString());
                        CBotVar* pThis = CBotVar::Create(&TokenSuper, CBotTypResult( CBotTypClass, m_pParent ) );
                        pThis->SetUniqNum(-3);
                        pile->AddVar(pThis);
                    }

//                  int num = 1;
                    CBotClass*  my = this;
                    while (my != NULL)
                    {
                        // places a copy of variables of a class (this) on a stack
                        CBotVar* pv = my->m_pVar;
                        while (pv != NULL)
                        {
                            CBotVar* pcopy = CBotVar::Create(pv);
                            pcopy->SetInit(!bConstructor || pv->IsStatic());
                            pcopy->SetUniqNum(pv->GetUniqNum());
                            pile->AddVar(pcopy);
                            pv = pv->GetNext();
                        }
                        my = my->m_pParent;
                    }

                    // compiles a method
                    p = pBase;
                    CBotFunction* f = 
                    CBotFunction::Compile(p, pile, NULL/*, false*/);

                    if ( f != NULL )
                    {
                        f->m_pProg = pStack->GetBotCall();
                        f->m_bSynchro = bSynchro;
                        // replaces the element in the chain
                        f->m_next = pf->m_next;
                        pf->m_next = NULL;
                        delete pf;
                        if (prev == NULL) m_pMethod = f;
                        else prev->m_next = f;
                    }
                    pStack->Return(NULL, pile);
                }

                return pStack->IsOk();
            }

            // definition of an element
            if (type.Eq(0))
            {
                pStack->SetError(TX_ENDOF, p);
                return false;
            }

            CBotInstr* i = NULL;
            if ( IsOfType(p, ID_ASS ) )
            {
                if ( type.Eq(CBotTypArrayPointer) )
                {
                    i = CBotListArray::Compile(p, pStack, type.GetTypElem());
                }
                else
                {
                    // it has an assignmet to calculate
                    i = CBotTwoOpExpr::Compile(p, pStack);
                }
                if ( !pStack->IsOk() ) return false;
            }


            if ( !bSecond )
            {
                CBotVar*    pv = CBotVar::Create(pp->GetString(), type);
                pv -> SetStatic( bStatic );
                pv -> SetPrivate( mProtect );

                AddItem( pv );

                pv->m_InitExpr = i;
                pv->m_LimExpr = limites;


                if ( pv->IsStatic() && pv->m_InitExpr != NULL )
                {
                    CBotStack* pile = CBotStack::FirstStack();              // independent stack
                    while(pile->IsOk() && !pv->m_InitExpr->Execute(pile));  // evaluates the expression without timer
                    pv->SetVal( pile->GetVar() ) ;
                    pile->Delete();
                }
            }
            else
                delete i;

            if ( IsOfType(p, ID_COMMA) ) continue;
            if ( IsOfType(p, ID_SEP) ) break;
        }
        pStack->SetError(TX_ENDOF, p);
    }
    return pStack->IsOk();
}