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1. Sergey Bugaev (bugaevc@floss.social)'s status on Friday, 10-Mar-2023 05:27:33 JST Sergey Bugaev

   #Rust 1.68 is out!

   The coolest thing in there is the newly stabilized pin!() macro, which of course makes any value of type T into a Pin<&mut T>

   This is like the old futures::pin_mut!() macro, but they've done some awesome magic (or: horrible hacks) to make it more ergonomic:

   • Adrian Cochrane repeated this.
   • Sergey Bugaev (bugaevc@floss.social)'s status on Friday, 10-Mar-2023 05:28:42 JST Sergey Bugaev

     in reply to

     futures::pin_mut!() was used like this:

     let stream = make_stream();
     pin_mut!(stream);
     use(stream);

     i.e. it worked on a variable (by shadowing it). The new core::pin::pin!() just works with expressions:

     use(pin!(make_stream()));

     Naturally, you can still save it to a variable if you want to:

     let stream = pin!(make_stream());
     use(stream);