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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/traits/impl-evaluation-order.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/traits/impl-evaluation-order.rs')
-rw-r--r-- | tests/ui/traits/impl-evaluation-order.rs | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/tests/ui/traits/impl-evaluation-order.rs b/tests/ui/traits/impl-evaluation-order.rs new file mode 100644 index 000000000..57809d89a --- /dev/null +++ b/tests/ui/traits/impl-evaluation-order.rs @@ -0,0 +1,39 @@ +// Regression test for #79902 + +// Check that evaluation (which is used to determine whether to copy a type in +// MIR building) evaluates bounds from normalizing an impl after evaluating +// any bounds on the impl. + +// check-pass + +trait A { + type B; +} +trait M {} + +struct G<T, U>(*const T, *const U); + +impl<T, U> Clone for G<T, U> { + fn clone(&self) -> Self { + G { ..*self } + } +} + +impl<T, U> Copy for G<T, U::B> +where + T: A<B = U>, + U: A, +{ +} + +impl A for () { + type B = (); +} + +fn is_m<T: M>(_: T) {} + +fn main() { + let x = G(&(), &()); + drop(x); + drop(x); +} |