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Update for stabilization of the never type - #2283
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| > [!EDITION-2024] | ||
| > Before the 2024 edition, the type was inferred to instead be `()`. |
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A shame that we can't represent "before rust x.y.z with edition < 2024"...
ehuss
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Jun 15, 2026
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Thanks @WaffleLapkin! |
Stabilizing the never type means making `!` available in all positions and changing the never-to-any coercion fallback type to `!` in older editions. Let's make the updates needed for that.
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Jun 23, 2026
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This PR was rebased onto a different master commit. Here's a range-diff highlighting what actually changed. Rebasing is a normal part of keeping PRs up to date, so no action is needed—this note is just to help reviewers. |
traviscross
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Jun 23, 2026
In various places, we had worked around the never type being unstable when writing examples. Now that it is stable, let's clean those examples up.
This moves type.never.intro to the top of the chapter to match the style where the intro should always come first in a section.
This moves the never example to the intro to match our layout style, and adds an example showing a type expression using `!`.
Never can coerce to itself.
This tries to punch up the never type intro by linking to the divergence chapter.
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This updates for the stabilization of the never type proposed in rust-lang/rust#155499.
cc @WaffleLapkin