Avoid potential crash on signal disconnection
(cherry picked from commit 32b7f835d8
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32f2b851ab
commit
5676d398e0
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@ -2097,7 +2097,11 @@ Object::~Object() {
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// Disconnect signals that connect to this object.
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while (connections.size()) {
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Connection c = connections.front()->get();
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bool disconnected = c.signal.get_object()->_disconnect(c.signal.get_name(), c.callable, true);
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Object *obj = c.callable.get_object();
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bool disconnected = false;
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if (likely(obj)) {
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disconnected = c.signal.get_object()->_disconnect(c.signal.get_name(), c.callable, true);
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}
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if (unlikely(!disconnected)) {
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// If the disconnect has failed, abandon the connection to avoid getting trapped in an infinite loop here.
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connections.pop_front();
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