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update promotion docs #67

Merged
merged 2 commits into from
May 13, 2021
Merged

update promotion docs #67

merged 2 commits into from
May 13, 2021

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RalfJung
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@RalfJung RalfJung commented May 9, 2021 •
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"Explicit promotion" is no more 🎉 , so update the docs accordingly.

Blocked on rust-lang/rust#85110.

Fixes #35
Fixes #32

Fixes #53

@RalfJung RalfJung mentioned this pull request May 9, 2021
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RalfJung commented May 9, 2021 •
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I marked this as also closing #53. As far as I know, the only remaining "weirdness" of promotion is that const fn calls get promoted in const/static bodies, and this behavior is discussed at rust-lang/rust#80619. It makes the entire system a bit less clean than I would like, but it also makes it more convenient for users, so maybe that's an okay trade-off. rust-lang/rust#85112 ensures that rustc behaves correctly here.

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rust-lang/rust#85110 landed. :)

@RalfJung RalfJung merged commit 139f190 into rust-lang:master May 13, 2021
@RalfJung RalfJung deleted the promotion branch May 13, 2021 18:56
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Solving the problem with promotion Update for promotion changes Describe promoted MIR quirks
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