bool CBotClass::SaveStaticState(FILE* pf)
{
if (!WriteWord( pf, CBOTVERSION*2)) return false;
// saves the state of static variables in classes
CBotClass* p = m_ExClass;
while ( p != NULL )
{
if (!WriteWord( pf, 1)) return false;
// save the name of the class
if (!WriteString( pf, p->GetName() )) return false;
CBotVar* pv = p->GetVar();
while( pv != NULL )
{
if ( pv->IsStatic() )
{
if (!WriteWord( pf, 1)) return false;
if (!WriteString( pf, pv->GetName() )) return false;
if ( !pv->Save0State(pf)) return false; // common header
if ( !pv->Save1State(pf) ) return false; // saves as the child class
if ( !WriteWord( pf, 0)) return false;
}
pv = pv->GetNext();
}
if (!WriteWord( pf, 0)) return false;
p = p->m_ExNext;
}
if (!WriteWord( pf, 0)) return false;
return true;
}
CBotClass* CBotClass::Find(const char* name)
{
CBotClass* p = m_ExClass;
while ( p != NULL )
{
if ( p->GetName() == name ) return p;
p = p->m_ExNext;
}
return NULL;
}
bool CBotVar::IsElemOfClass(const std::string& name)
{
CBotClass* pc = nullptr;
if ( m_type.Eq(CBotTypPointer) )
{
pc = (static_cast<CBotVarPointer*>(this))->m_pClass;
}
if ( m_type.Eq(CBotTypClass) )
{
pc = (static_cast<CBotVarClass*>(this))->m_pClass;
}
while ( pc != nullptr )
{
if ( pc->GetName() == name ) return true;
pc = pc->GetParent();
}
return false;
}
bool CBotClass::AddItem(CBotString name, CBotTypResult type, int mPrivate)
{
CBotToken token(name, CBotString());
CBotClass* pClass = type.GetClass();
CBotVar* pVar = CBotVar::Create( name, type );
/// pVar->SetUniqNum(CBotVar::NextUniqNum());
pVar->SetPrivate( mPrivate );
if ( pClass != NULL )
{
// pVar->SetClass(pClass);
if ( type.Eq(CBotTypClass) )
{
// adds a new statement for the object initialization
pVar->m_InitExpr = new CBotNew() ;
CBotToken nom( pClass->GetName() );
pVar->m_InitExpr->SetToken(&nom);
}
}
return AddItem( pVar );
}
CBotInstr* CBotNew::Compile(CBotToken* &p, CBotCStack* pStack)
{
CBotToken* pp = p;
if (!IsOfType(p, ID_NEW)) return nullptr;
// verifies that the token is a class name
if (p->GetType() != TokenTypVar)
{
pStack->SetError(CBotErrBadNew, p);
return nullptr;
}
CBotClass* pClass = CBotClass::Find(p);
if (pClass == nullptr)
{
pStack->SetError(CBotErrBadNew, p);
return nullptr;
}
CBotNew* inst = new CBotNew();
inst->SetToken(pp);
inst->m_vartoken = *p;
p = p->GetNext();
// creates the object on the stack
// with a pointer to the object
CBotVar* pVar = CBotVar::Create("", pClass);
// do the call of the creator
CBotCStack* pStk = pStack->TokenStack();
{
// check if there are parameters
CBotVar* ppVars[1000];
inst->m_parameters = CompileParams(p, pStk, ppVars);
if (!pStk->IsOk()) goto error;
// constructor exist?
CBotTypResult r = pClass->CompileMethode(pClass->GetName(), pVar, ppVars, pStk, inst->m_nMethodeIdent);
delete pStk->TokenStack(); // release extra stack
int typ = r.GetType();
// if there is no constructor, and no parameters either, it's ok
if (typ == CBotErrUndefCall && inst->m_parameters == nullptr) typ = 0;
pVar->SetInit(CBotVar::InitType::DEF); // mark the instance as init
if (typ>20)
{
pStk->SetError(static_cast<CBotError>(typ), inst->m_vartoken.GetEnd());
goto error;
}
// if the constructor does not exist, but there are parameters
if (typ<0 && inst->m_parameters != nullptr)
{
pStk->SetError(CBotErrNoConstruct, &inst->m_vartoken);
goto error;
}
// makes pointer to the object on the stack
pStk->SetVar(pVar);
pp = p;
// chained method ?
if (nullptr != (inst->m_exprRetVar = CBotExprRetVar::Compile(p, pStk, true)))
{
inst->m_exprRetVar->SetToken(pp);
delete pStk->TokenStack();
}
if (pStack->IsOk())
return pStack->Return(inst, pStk);
}
error:
delete inst;
return pStack->Return(nullptr, pStk);
}
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
}
void CBotClassInst::RestoreState(CBotStack* &pj, bool bMain)
{
CBotVar* pThis = NULL;
CBotStack* pile = pj;
if ( bMain ) pile = pj->RestoreStack(this);
if ( pile == NULL ) return;
// creates the variable of type pointer to the object
{
CBotString name = m_var->m_token.GetString();
pThis = pile->FindVar(name);
pThis->SetUniqNum((static_cast<CBotLeftExprVar*>(m_var))->m_nIdent); // its attribute a unique number
}
CBotToken* pt = &m_token;
CBotClass* pClass = CBotClass::Find(pt);
bool bIntrincic = pClass->IsIntrinsic();
if ( bMain && pile->GetState()<3)
{
// is there an assignment or parameters (constructor)
// CBotVarClass* pInstance = NULL;
if ( m_expr != NULL )
{
// evaluates the expression for the assignment
m_expr->RestoreState(pile, bMain);
return;
}
else if ( m_hasParams )
{
// evaluates the constructor of an instance
if ( !bIntrincic && pile->GetState() == 1)
{
return;
}
CBotVar* ppVars[1000];
CBotStack* pile2 = pile;
int i = 0;
CBotInstr* p = m_Parameters;
// evaluates the parameters
// and the values an the stack
// for the ability to be interrupted at any time (\TODO pour pouvoir être interrompu n'importe quand)
if ( p != NULL) while ( true )
{
pile2 = pile2->RestoreStack(); // place on the stack for the results
if ( pile2 == NULL ) return;
if ( pile2->GetState() == 0 )
{
p->RestoreState(pile2, bMain); // interrupted here?
return;
}
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
pClass->RestoreMethode(m_nMethodeIdent, pClass->GetName(), pThis, ppVars, pile2);
return;
}
}
if ( m_next2b != NULL )
m_next2b->RestoreState(pile, bMain); // other(s) definition(s)
}
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)
}