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 CBotListExpression::Execute(CBotStack* &pj)
{
CBotStack* pile = pj->AddStack(); // essential
CBotInstr* p = m_Expr; // the first expression
int state = pile->GetState();
while (state-->0) p = p->GetNext(); // returns to the interrupted operation
if ( p != nullptr ) while (true)
{
if ( !p->Execute(pile) ) return false;
p = p->GetNext();
if ( p == nullptr ) break;
if (!pile->IncState()) return false; // ready for next
}
return pj->Return(pile);
}
bool CBotReturn::Execute(CBotStack* &pj)
{
CBotStack* pile = pj->AddStack(this);
// if ( pile == EOX ) return true;
if ( pile->GetState() == 0 )
{
if ( m_Instr != NULL && !m_Instr->Execute(pile) ) return false; // evaluate the result
// the result is on the stack
pile->IncState();
}
if ( pile->IfStep() ) return false;
pile->SetBreak(3, CBotString());
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 CBotListInstr::Execute(CBotStack* &pj)
{
CBotStack* pile = pj->AddStack(this, CBotStack::BlockVisibilityType::BLOCK); //needed for SetState()
if (pile->StackOver() ) return pj->Return( pile);
CBotInstr* p = m_instr; // the first expression
int state = pile->GetState();
while (state-->0) p = p->GetNext(); // returns to the interrupted operation
if (p != nullptr) while (true)
{
if (!p->Execute(pile)) return false;
p = p->GetNext();
if (p == nullptr) break;
(void)pile->IncState(); // ready for next
}
return pj->Return(pile);
}
bool CBotNew::Execute(CBotStack* &pj)
{
CBotStack* pile = pj->AddStack(this); //main stack
if (m_exprRetVar != nullptr) // new Class().method()
{
if (pile->GetState() == 2)
{
CBotStack* pile3 = pile->AddStack();
if (!m_exprRetVar->Execute(pile3)) return false;
return pj->Return(pile3);
}
}
if (pile->IfStep()) return false;
CBotStack* pile1 = pj->AddStack2(); //secondary stack
CBotVar* pThis = nullptr;
CBotToken* pt = &m_vartoken;
CBotClass* pClass = CBotClass::Find(pt);
// create the variable "this" pointer type to the stack
if ( pile->GetState()==0)
{
// create an instance of the requested class
// and initialize the pointer to that object
pThis = CBotVar::Create("this", pClass);
pThis->SetUniqNum(-2) ;
pile1->SetVar(pThis); // place on stack1
pile->IncState();
}
// fetch the this pointer if it was interrupted
if ( pThis == nullptr)
{
pThis = pile1->GetVar(); // find the pointer
}
// is there an assignment or parameters (constructor)
if ( pile->GetState()==1)
{
// evaluates the constructor of the instance
CBotVar* ppVars[1000];
CBotStack* pile2 = pile;
int i = 0;
CBotInstr* p = m_parameters;
// evaluate the parameters
// and places the values on the stack
// to be interrupted at any time
if (p != nullptr) while ( true)
{
pile2 = pile2->AddStack(); // space on the stack for the result
if (pile2->GetState() == 0)
{
if (!p->Execute(pile2)) return false; // interrupted here?
pile2->SetState(1);
}
ppVars[i++] = pile2->GetVar();
p = p->GetNext();
if ( p == nullptr) break;
}
ppVars[i] = nullptr;
// create a variable for the result
CBotVar* pResult = nullptr; // constructos still void
if ( !pClass->ExecuteMethode(m_nMethodeIdent, pClass->GetName(),
pThis, ppVars,
pResult, pile2, GetToken())) return false; // interrupt
pThis->ConstructorSet(); // indicates that the constructor has been called
}
if (m_exprRetVar != nullptr) // new Class().method()
{
pile->AddStack()->Delete(); // release pile2 stack
CBotStack* pile3 = pile->AddStack(); // add new stack
pile3->SetCopyVar(pThis); // copy the pointer (from pile1)
pile1->Delete(); // release secondary stack(pile1)
pile->SetState(2);
return false; // go back to the top ^^^
}
return pj->Return(pile1); // passes below
}
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);
}
ppVars[i++] = pile2->GetVar();
p = p->GetNext();
if ( p == NULL) break;
}
ppVars[i] = NULL;
// creates a variable for the result
CBotVar* pResult = NULL; // constructor still void
if ( !pClass->ExecuteMethode(m_nMethodeIdent, pClass->GetName(),
pThis, ppVars,
pResult, pile2, GetToken())) return false; // interrupt
pThis->SetInit(true);
pThis->ConstructorSet(); // indicates that the constructor has been called
pile->Return(pile2); // releases a piece of stack
// pInstance = pThis->GetPointer();
}
// if ( !bIntrincic ) pThis->SetPointer(pInstance); // a pointer to the instance
pile->SetState(3); // finished this part
}
if ( pile->IfStep() ) return false;
if ( m_next2b != NULL &&
!m_next2b->Execute(pile)) return false; // other (s) definition (s)
return pj->Return( pile ); // transmits below (further)
}
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);
}
int CBotFunction::DoCall(long& nIdent, const char* name, CBotVar* pThis, CBotVar** ppVars, CBotStack* pStack, CBotToken* pToken, CBotClass* pClass)
{
CBotTypResult type;
CBotProgram* pProgCurrent = pStack->GetBotCall();
CBotFunction* pt = FindLocalOrPublic(nIdent, name, ppVars, type, false);
if ( pt != NULL )
{
// DEBUG( "CBotFunction::DoCall" + pt->GetName(), 0, pStack);
CBotStack* pStk = pStack->AddStack(pt, 2);
// if ( pStk == EOX ) return true;
pStk->SetBotCall(pt->m_pProg); // it may have changed module
CBotStack* pStk3 = pStk->AddStack(NULL, true); // to set parameters passed
// preparing parameters on the stack
if ( pStk->GetState() == 0 )
{
// sets the variable "this" on the stack
CBotVar* pthis = CBotVar::Create("this", CBotTypNullPointer);
pthis->Copy(pThis, false);
pthis->SetUniqNum(-2); // special value
pStk->AddVar(pthis);
CBotClass* pClass = pThis->GetClass()->GetParent();
if ( pClass )
{
// sets the variable "super" on the stack
CBotVar* psuper = CBotVar::Create("super", CBotTypNullPointer);
psuper->Copy(pThis, false); // in fact identical to "this"
psuper->SetUniqNum(-3); // special value
pStk->AddVar(psuper);
}
// initializes the variables as parameters
pt->m_Param->Execute(ppVars, pStk3); // cannot be interrupted
pStk->IncState();
}
if ( pStk->GetState() == 1 )
{
if ( pt->m_bSynchro )
{
CBotProgram* pProgBase = pStk->GetBotCall(true);
if ( !pClass->Lock(pProgBase) ) return false; // expected to power \TODO attend de pouvoir
}
pStk->IncState();
}
// finally calls the found function
if ( !pStk3->GetRetVar( // puts the result on the stack
pt->m_Block->Execute(pStk3) )) // GetRetVar said if it is interrupted
{
if ( !pStk3->IsOk() )
{
if ( pt->m_bSynchro )
{
pClass->Unlock(); // release function
}
if ( pt->m_pProg != pProgCurrent )
{
pStk3->SetPosError(pToken); // indicates the error on the procedure call
}
}
return false; // interrupt !
}
if ( pt->m_bSynchro )
{
pClass->Unlock(); // release function
}
return pStack->Return( pStk3 );
}
return -1;
}