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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:41 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:41 +0000 |
commit | 4f9fe856a25ab29345b90e7725509e9ee38a37be (patch) | |
tree | e4ffd8a9374cae7b21f7cbfb352927e0e074aff6 /tests/ui/traits/new-solver/temporary-ambiguity.rs | |
parent | Adding upstream version 1.68.2+dfsg1. (diff) | |
download | rustc-4f9fe856a25ab29345b90e7725509e9ee38a37be.tar.xz rustc-4f9fe856a25ab29345b90e7725509e9ee38a37be.zip |
Adding upstream version 1.69.0+dfsg1.upstream/1.69.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | tests/ui/traits/new-solver/temporary-ambiguity.rs | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/tests/ui/traits/new-solver/temporary-ambiguity.rs b/tests/ui/traits/new-solver/temporary-ambiguity.rs new file mode 100644 index 000000000..18ee05457 --- /dev/null +++ b/tests/ui/traits/new-solver/temporary-ambiguity.rs @@ -0,0 +1,22 @@ +// compile-flags: -Ztrait-solver=next +// check-pass + +// Checks that we don't explode when we assemble >1 candidate for a goal. + +struct Wrapper<T>(T); + +trait Foo {} + +impl Foo for Wrapper<i32> {} + +impl Foo for Wrapper<()> {} + +fn needs_foo(_: impl Foo) {} + +fn main() { + let mut x = Default::default(); + let w = Wrapper(x); + needs_foo(w); + x = 1; + drop(x); +} |