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Diffstat (limited to 'src/test/ui/underscore-lifetimes.rs')
-rw-r--r-- | src/test/ui/underscore-lifetimes.rs | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/test/ui/underscore-lifetimes.rs b/src/test/ui/underscore-lifetimes.rs new file mode 100644 index 000000000..a1593880d --- /dev/null +++ b/src/test/ui/underscore-lifetimes.rs @@ -0,0 +1,38 @@ +// run-pass + +#![allow(dead_code)] +struct Foo<'a>(&'a u8); + +fn foo(x: &u8) -> Foo<'_> { + Foo(x) +} + +fn foo2(x: &'_ u8) -> Foo<'_> { + Foo(x) +} + +fn foo3(x: &'_ u8) -> Foo { + Foo(x) +} + +fn foo4(_: Foo<'_>) {} + +struct Foo2<'a, 'b> { + a: &'a u8, + b: &'b u8, +} +fn foo5<'b>(foo: Foo2<'_, 'b>) -> &'b u8 { + foo.b +} + +fn main() { + let x = &5; + let _ = foo(x); + let _ = foo2(x); + let _ = foo3(x); + foo4(Foo(x)); + let _ = foo5(Foo2 { + a: x, + b: &6, + }); +} |