mirror of https://github.com/rust-lang/rust
50 lines
1.0 KiB
Rust
50 lines
1.0 KiB
Rust
trait ListItem<'a> {
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fn list_name() -> &'a str;
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}
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trait Collection { fn len(&self) -> usize; }
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// is now well formed. RFC 2093
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struct List<'a, T: ListItem<'a>> {
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slice: &'a [T]
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}
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impl<'a, T: ListItem<'a>> Collection for List<'a, T> {
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fn len(&self) -> usize {
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0
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}
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}
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struct Foo<T> {
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foo: &'static T
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//~^ ERROR may not live long enough
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}
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trait X<K>: Sized {
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fn foo<'a, L: X<&'a Nested<K>>>();
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//~^ ERROR may not live long enough
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// check that we give a sane error for `Self`
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fn bar<'a, L: X<&'a Nested<Self>>>();
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//~^ ERROR may not live long enough
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// check that we give a sane error for nested generics
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fn baz<'a, L, M: X<&'a Nested<L>>>() {
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//~^ ERROR may not live long enough
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}
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}
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trait TraitB {}
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struct Nested<K>(K);
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impl<K> Nested<K> {
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fn generic_in_parent<'a, L: X<&'a Nested<K>>>() {
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//~^ ERROR may not live long enough
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}
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fn generic_in_child<'a, 'b, L: X<&'a Nested<M>>, M: 'b>() {
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//~^ ERROR may not live long enough
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}
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}
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fn main() {}
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