From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:13 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- tests/ui/where-clauses/where-for-self-2.rs | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 tests/ui/where-clauses/where-for-self-2.rs (limited to 'tests/ui/where-clauses/where-for-self-2.rs') diff --git a/tests/ui/where-clauses/where-for-self-2.rs b/tests/ui/where-clauses/where-for-self-2.rs new file mode 100644 index 000000000..37c6954fd --- /dev/null +++ b/tests/ui/where-clauses/where-for-self-2.rs @@ -0,0 +1,24 @@ +// Test that we can quantify lifetimes outside a constraint (i.e., including +// the self type) in a where clause. Specifically, test that implementing for a +// specific lifetime is not enough to satisfy the `for<'a> ...` constraint, which +// should require *all* lifetimes. + +static X: &'static u32 = &42; + +trait Bar { + fn bar(&self); +} + +impl Bar for &'static u32 { + fn bar(&self) {} +} + +fn foo(x: &T) +where + for<'a> &'a T: Bar, +{ +} + +fn main() { + foo(&X); //~ ERROR implementation of `Bar` is not general enough +} -- cgit v1.2.3