/*!
Tries to resolve a member named \a name. If it is found \a mem is
initialized with the result and the class defining this member is
returned. In case of a failed search, 0 is returned and the content
of \a mem is undefined.
*/
const QSClass *QSObject::resolveMember(const QString &name,
QSMember *mem,
const QSClass *owner,
int *offset) const
{
Q_ASSERT(offset);
Q_ASSERT(mem);
Q_ASSERT(!name.isEmpty());
if (!owner)
owner = objectType();
QPtrList<QSClass> enclosing;
QSMember stackedMember;
while (owner) {
if (owner->member(*offset == 0 ? this : 0, name, mem)) {
return owner;
} else if (mem->type() == QSMember::Identifier && !stackedMember.isDefined()) {
stackedMember = *mem;
}
if (owner->enclosingClass())
enclosing.append(owner->enclosingClass());
owner = owner->base();
}
const QSClass *eClass = enclosing.first();
while (eClass) {
const QSClass *enc =
resolveMember(name, mem, eClass, &(++(*offset)));
if (enc) {
if (mem->type() == QSMember::Identifier)
if (!stackedMember.isDefined())
stackedMember = *mem;
else
return enc;
} else {
--(*offset);
}
eClass = enclosing.next();
}
if (stackedMember.isDefined()) {
*mem = stackedMember;
return stackedMember.owner();
}
return 0;
}
void QSResolveNode::check( QSCheckData *c )
{
if ( !c->directLookupEnabled() )
return;
QSClass * cl = c->currentScope();
QSClass *cont = cl;
int uplvl = 0;
int blocks = 0;
QSMember member;
while ( cont ) {
QSMember mem;
if ( cont->member( 0, ident, &mem ) ) {
if ( mem.type()==QSMember::Variable && !mem.isStatic() ) {
member = mem;
break;
}
}
uplvl++;
cont = cont->enclosingClass();
}
if( member.isDefined() ) {
/* If the containing class has an undefined base, the indexes will be moved
when the we call QSAbstractBaseClass::replace() and the lookup info
will be crap. Therefore, we don't create it. */
QSClass *tmp = cont->base();
while (tmp) {
if (tmp->name() == QString::fromLatin1("AbstractBase"))
return;
tmp = tmp->base();
}
// Due to special handling of block scopes in the global object...
if( cont==c->env()->globalClass() )
uplvl+=blocks;
info = new QSLookupInfo( uplvl, member );
}
}
