Implementing Go's defer keyword in C++

Re:Implementing Go's defer keyword in C++ by masklinn on Sunday October 22, 2017 @06:24AM (#15526037)

On the other hand, it means any helper/builder has to handle this pattern on its own rather than be able to return a file object which can be "context managed" by a caller, which Python allows.

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Re:Implementing Go's defer keyword in C++ by RX14 on Sunday October 22, 2017 @07:27AM (#15526252)

True, but it's fairly easy to write:

    def self.open
      File.open(...) { |f| yield f }
    end

Unless they need custom destructor actions, in which case presumably they'd have to implement that manually in python too.

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Re:Implementing Go's defer keyword in C++ by masklinn on Sunday October 22, 2017 @07:45AM (#15526331)

Yup and yup.

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