Rust 1.45 - Hackdot

Re:Rust 1.45 by devit on Thursday July 16, 2020 @03:53PM (#23863145)

Can we please deprecate the "as" operator?

Something so lossy and ill-conceived should not be a two-letter operator.

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Re:Rust 1.45 by steveklabnik on Thursday July 16, 2020 @04:12PM (#23863324)

It is possible, someone needs to do the RFC work.

I would say that my personal take of the temperature is "vaguely pro but not a slam dunk", at least from the opinions I've seen. Only one way to find out.

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Re:Rust 1.45 by 95th on Friday July 17, 2020 @01:49AM (#23867481)

Then what do you propose for replacement? C++ style casts `(int) x` ?

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Re:Rust 1.45 by devit on Friday July 17, 2020 @03:59AM (#23868271)

into()/try_into() and methods designed for each of the other cases (e.g. truncate(), saturating_to_int(), approx_to_float(), etc.)

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Re:Rust 1.45 by erk__ on Friday July 17, 2020 @03:07AM (#23867953)

Using `x.into()` instead or `x.try_into()` if it can fail.

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Re:Rust 1.45 by stefano_c on Friday July 17, 2020 @05:10AM (#23868694)

What would you suggest for replacing e.g. `u8 as usize`?

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Re:Rust 1.45 by steveklabnik on Friday July 17, 2020 @08:12AM (#23869657)

For this one, you could use From/Into, because it cannot fail. For numerics that can fail, TryFrom/TryInto.

The numeric casts are the easy part of this.

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