From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- .../path-underscore.rs | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 src/test/ui/impl-header-lifetime-elision/path-underscore.rs (limited to 'src/test/ui/impl-header-lifetime-elision/path-underscore.rs') diff --git a/src/test/ui/impl-header-lifetime-elision/path-underscore.rs b/src/test/ui/impl-header-lifetime-elision/path-underscore.rs new file mode 100644 index 000000000..f39ba5733 --- /dev/null +++ b/src/test/ui/impl-header-lifetime-elision/path-underscore.rs @@ -0,0 +1,34 @@ +// Test that `impl MyTrait for Foo<'_>` works. + +// run-pass + +#![allow(warnings)] + +trait MyTrait { } + +struct Foo<'a> { x: &'a u32 } + +impl MyTrait for Foo<'_> { +} + +fn impls_my_trait() { } + +fn impls_my_trait_val(_: T) { + impls_my_trait::(); +} + +fn random_where_clause() +where for<'a> Foo<'a>: MyTrait { } + +fn main() { + let x = 22; + let f = Foo { x: &x }; + + // This type is `Foo<'x>` for a local lifetime `'x`; so the impl + // must apply to any lifetime to apply to this. + impls_my_trait_val(f); + + impls_my_trait::>(); + + random_where_clause(); +} -- cgit v1.2.3