folly::observer::makeObserver

Synopses

Declared in <folly/observer/Observer.h>

makeObserver(...) creates a new Observer<T> object given a functor to compute it. The functor can return T or std::shared_ptr<const T>.

template<typename F>
Observer<observer_detail::ResultOf<F>>
makeObserver(F&& creator);

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Creates an Observer from a creator returning a shared pointer.

template<typename F>
Observer<observer_detail::ResultOfUnwrapSharedPtr<F>>
makeObserver(F&& creator);

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Creates an Observer from a creator returning an Observer.

template<typename F>
Observer<observer_detail::ResultOfUnwrapObserver<F>>
makeObserver(F&& creator);

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