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#include "stdafx.h"
#include "OffsetSource.h"
#include "OffsetReference.h"
#include "Core/Str.h"
#include "Core/StrBuf.h"
namespace code {
OffsetSource::OffsetSource() : data() {
refs = new (this) WeakSet<OffsetReference>();
}
OffsetSource::OffsetSource(Offset offset) : data(offset) {
refs = new (this) WeakSet<OffsetReference>();
}
void OffsetSource::set(Offset offset) {
data = offset;
update();
}
Offset OffsetSource::offset() const {
if (stolenBy)
return stolenBy->offset();
else
return data;
}
OffsetSource *OffsetSource::findActual() {
if (stolenBy)
return stolenBy->findActual();
else
return this;
}
void OffsetSource::update() {
WeakSet<OffsetReference>::Iter i = refs->iter();
while (OffsetReference *ref = i.next())
ref->onMoved(data);
}
void OffsetSource::steal(OffsetSource *from) {
WeakSet<OffsetReference>::Iter i = from->refs->iter();
while (OffsetReference *ref = i.next()) {
refs->put(ref);
ref->to = this;
ref->onMoved(data);
}
from->refs->clear();
// Make sure it gets its information from us!
from->stolenBy = this;
}
void OffsetSource::toS(StrBuf *to) const {
*to << title();
}
StrOffsetSource::StrOffsetSource(const wchar *title) : OffsetSource() {
name = new (this) Str(title);
}
StrOffsetSource::StrOffsetSource(Str *title) : OffsetSource(), name(title) {}
StrOffsetSource::StrOffsetSource(Str *title, Offset offset) : OffsetSource(offset), name(title) {}
Str *StrOffsetSource::title() const {
return name;
}
}
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