mirror of https://github.com/rust-lang/rust
47 lines
756 B
Rust
47 lines
756 B
Rust
// Check that a trait with by-value self is considered object-safe.
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//@ build-pass (FIXME(62277): could be check-pass?)
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#![allow(dead_code)]
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#![allow(trivial_casts)]
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trait Bar {
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fn bar(self);
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}
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trait Baz {
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fn baz(self: Self);
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}
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trait Quux {
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// Legal because of the where clause:
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fn baz(self: Self) where Self : Sized;
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}
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fn make_bar<T:Bar>(t: &T) -> &dyn Bar {
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t // legal
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}
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fn make_bar_explicit<T:Bar>(t: &T) -> &dyn Bar {
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t as &dyn Bar // legal
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}
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fn make_baz<T:Baz>(t: &T) -> &dyn Baz {
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t // legal
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}
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fn make_baz_explicit<T:Baz>(t: &T) -> &dyn Baz {
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t as &dyn Baz // legal
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}
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fn make_quux<T:Quux>(t: &T) -> &dyn Quux {
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t
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}
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fn make_quux_explicit<T:Quux>(t: &T) -> &dyn Quux {
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t as &dyn Quux
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}
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fn main() {
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}
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