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impl Default, Copy, Clone for std::io::Sink and Empty #86744

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merged 1 commit into from
Aug 8, 2021

Commits on Jun 30, 2021

  1. impl Default, Copy, Clone for std::io::Sink and Empty

    The omission of Sink: Default is causing me a slight inconvenience in
    a test harness.  There seems little reason for this and Empty not to
    be Clone and Copy too.
    
    I have made all three of these insta-stable, because:
    
    AIUI Copycan only be derived, and I was not able to find any
    examples of how to unstably derive it.  I think it is probably not
    possible.
    
    I hunted through the git history for precedent and found
    
      79b8ad8
      Implement `Copy` for `IoSlice`
      rust-lang#69403
    
    which was also insta-stable.
    
    Signed-off-by: Ian Jackson <[email protected]>
    ijackson committed Jun 30, 2021
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