mirror of https://github.com/rust-lang/rust
33 lines
1.1 KiB
Rust
33 lines
1.1 KiB
Rust
#![crate_name = "foo"]
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pub trait Eq {}
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pub trait Eq2 {}
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// Checking that "where predicates" and "generics params" are merged.
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// @has 'foo/trait.T.html'
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// @has - "//*[@id='tymethod.f']/h4" "fn f<'a, 'b, 'c, T>()where Self: Eq, T: Eq + 'a, 'c: 'b + 'a,"
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pub trait T {
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fn f<'a, 'b, 'c: 'a, T: Eq + 'a>()
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where Self: Eq, Self: Eq, T: Eq, 'c: 'b;
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}
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// Checking that a duplicated "where predicate" is removed.
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// @has 'foo/trait.T2.html'
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// @has - "//*[@id='tymethod.f']/h4" "fn f<T>()where Self: Eq + Eq2, T: Eq2 + Eq,"
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pub trait T2 {
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fn f<T: Eq>()
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where Self: Eq, Self: Eq2, T: Eq2;
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}
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// Checking that we support empty bounds (we used to crash on empty outlives-bounds).
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// Note that we don't want to hide them since they have a semantic effect.
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// For outlives-bounds, they force the lifetime param to be early-bound instead of late-bound.
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// For trait bounds, it can affect well-formedness (see `ClauseKind::WellFormed`).
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// @has 'foo/fn.empty.html'
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// @has - '//pre[@class="rust item-decl"]' "empty<'a, T>()where T:, 'a:,"
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pub fn empty<'a, T>()
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where
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T:,
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'a:,
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{}
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