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並前往https://www.reddit.com/r/learnrust/comments/m7jpz5/how_to_return_t_from_rcrefcellt_in_a_function/

how to return &T from Rc> in a function - Reddit

I have a struct that wraps a Rc<RefCell<dyn Operation>> value, and when I deref it, I want to access the &dyn Operation directly:

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