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12dc24f460
This commit is a response to feedback on the displayed type signatures results, by making generics act stricter. Generics are tightened by making order significant. This means `Vec<Allocator>` now matches only with a true vector of allocators, instead of matching the second type param. It also makes unboxing within generics stricter, so `Result<A, B>` only matches if `B` is in the error type and `A` is in the success type. The top level of the function search is unaffected. Find the discussion on: * <https://rust-lang.zulipchat.com/#narrow/stream/393423-t-rustdoc.2Fmeetings/topic/meeting.202024-07-08/near/449965149> * <https://github.com/rust-lang/rust/pull/124544#issuecomment-2204272265> * <https://rust-lang.zulipchat.com/#narrow/channel/266220-t-rustdoc/topic/deciding.20on.20semantics.20of.20generics.20in.20rustdoc.20search/near/476841363>
45 lines
693 B
Rust
45 lines
693 B
Rust
#![feature(rustdoc_internals)]
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#[doc(search_unbox)]
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pub struct Out<A, B = ()> {
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a: A,
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b: B,
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}
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#[doc(search_unbox)]
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pub struct Out1<A, const N: usize> {
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a: [A; N],
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}
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#[doc(search_unbox)]
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pub struct Out2<A, const N: usize> {
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a: [A; N],
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}
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#[doc(search_unbox)]
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pub struct Out3<A, B> {
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a: A,
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b: B,
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}
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#[doc(search_unbox)]
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pub struct Out4<A, B> {
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a: A,
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b: B,
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}
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#[doc(search_unbox)]
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pub struct Inside<T>(T);
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pub fn alpha<const N: usize, T>(_: Inside<T>) -> Out<Out1<T, N>, Out2<T, N>> {
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loop {}
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}
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pub fn beta<T, U>(_: Inside<T>) -> Out<Out3<T, U>, Out4<U, T>> {
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loop {}
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}
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pub fn gamma<T, U>(_: Inside<T>) -> Out<Out3<U, T>, Out4<T, U>> {
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loop {}
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}
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