Update for stabilization of the never type#2283
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With stabilization of never, this constraint is removed. rust-lang#2186 will handle adding call expression divergence behavior.
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 `!`.
In the stabilization, the dependency_on_unit_never_type_fallback is being made a hard error in all editions.
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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"...
Some of these examples can be simplified with using the never type.
Never can coerce to itself.
This tries to punch up the never type intro by linking to the divergence chapter.
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Thanks @WaffleLapkin! |
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This updates for the stabilization of the never type proposed in rust-lang/rust#155499.
cc @WaffleLapkin