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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/regions/regions-outlives-projection-container-wc.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/regions/regions-outlives-projection-container-wc.rs')
-rw-r--r-- | src/test/ui/regions/regions-outlives-projection-container-wc.rs | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/test/ui/regions/regions-outlives-projection-container-wc.rs b/src/test/ui/regions/regions-outlives-projection-container-wc.rs new file mode 100644 index 000000000..4fda7774b --- /dev/null +++ b/src/test/ui/regions/regions-outlives-projection-container-wc.rs @@ -0,0 +1,35 @@ +// Test that we are imposing the requirement that every associated +// type of a bound that appears in the where clause on a struct must +// outlive the location in which the type appears, even when the +// constraint is in a where clause not a bound. Issue #22246. + +#![allow(dead_code)] + +pub trait TheTrait { + type TheAssocType; +} + +pub struct TheType<'b> { + m: [fn(&'b()); 0] +} + +impl<'b> TheTrait for TheType<'b> { + type TheAssocType = &'b (); +} + +pub struct WithAssoc<T> where T : TheTrait { + m: [T; 0] +} + +fn with_assoc<'a,'b>() { + // For this type to be valid, the rules require that all + // associated types of traits that appear in `WithAssoc` must + // outlive 'a. In this case, that means TheType<'b>::TheAssocType, + // which is &'b (), must outlive 'a. + + let _: &'a WithAssoc<TheType<'b>> = loop { }; + //~^ ERROR lifetime may not live long enough +} + +fn main() { +} |