Core/Signal: Make operator() const
Former-commit-id: 623f4908ca5e71d02365aea0b717d684a822ea5b
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@ -31,7 +31,7 @@ class NzSignal
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template<typename O> Connection Connect(O& object, void (O::*method)(Args...));
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template<typename O> Connection Connect(O* object, void (O::*method)(Args...));
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void operator()(Args... args);
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void operator()(Args... args) const;
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NzSignal& operator=(const NzSignal&) = delete;
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NzSignal& operator=(NzSignal&& signal);
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@ -59,7 +59,7 @@ typename NzSignal<Args...>::Connection NzSignal<Args...>::Connect(O* object, voi
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}
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template<typename... Args>
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void NzSignal<Args...>::operator()(Args... args)
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void NzSignal<Args...>::operator()(Args... args) const
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{
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for (const SlotPtr& slot : m_slots)
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slot->callback(args...);
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