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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:03 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:03 +0000 |
commit | 64d98f8ee037282c35007b64c2649055c56af1db (patch) | |
tree | 5492bcf97fce41ee1c0b1cc2add283f3e66cdab0 /tests/ui/traits/inductive-overflow/lifetime.rs | |
parent | Adding debian version 1.67.1+dfsg1-1. (diff) | |
download | rustc-64d98f8ee037282c35007b64c2649055c56af1db.tar.xz rustc-64d98f8ee037282c35007b64c2649055c56af1db.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/traits/inductive-overflow/lifetime.rs')
-rw-r--r-- | tests/ui/traits/inductive-overflow/lifetime.rs | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/tests/ui/traits/inductive-overflow/lifetime.rs b/tests/ui/traits/inductive-overflow/lifetime.rs new file mode 100644 index 000000000..bf536d21c --- /dev/null +++ b/tests/ui/traits/inductive-overflow/lifetime.rs @@ -0,0 +1,33 @@ +// Test that we don't hit the recursion limit for short cycles involving lifetimes. + +// Shouldn't hit this, we should realize that we're in a cycle sooner. +#![recursion_limit="20"] + +trait NotAuto {} +trait Y { + type P; +} + +impl<'a> Y for C<'a> { + type P = Box<X<C<'a>>>; +} + +struct C<'a>(&'a ()); +struct X<T: Y>(T::P); + +impl<T: NotAuto> NotAuto for Box<T> {} //~ NOTE: required +//~^ NOTE unsatisfied trait bound introduced here +impl<T: Y> NotAuto for X<T> where T::P: NotAuto {} +impl<'a> NotAuto for C<'a> {} + +fn is_send<S: NotAuto>() {} +//~^ NOTE: required +//~| NOTE: required + +fn main() { + // Should only be a few notes. + is_send::<X<C<'static>>>(); + //~^ ERROR overflow evaluating + //~| 3 redundant requirements hidden + //~| required for +} |