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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/impl-trait/issues/infinite-impl-trait-issue-38064.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/impl-trait/issues/infinite-impl-trait-issue-38064.rs')
-rw-r--r-- | src/test/ui/impl-trait/issues/infinite-impl-trait-issue-38064.rs | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/test/ui/impl-trait/issues/infinite-impl-trait-issue-38064.rs b/src/test/ui/impl-trait/issues/infinite-impl-trait-issue-38064.rs new file mode 100644 index 000000000..451ddb3cc --- /dev/null +++ b/src/test/ui/impl-trait/issues/infinite-impl-trait-issue-38064.rs @@ -0,0 +1,25 @@ +// Test that attempts to construct infinite types via impl trait fail +// in a graceful way. +// +// Regression test for #38064. + +trait Quux {} + +fn foo() -> impl Quux { //~ ERROR cannot resolve opaque type + struct Foo<T>(T); + impl<T> Quux for Foo<T> {} + Foo(bar()) +} + +fn bar() -> impl Quux { //~ ERROR cannot resolve opaque type + struct Bar<T>(T); + impl<T> Quux for Bar<T> {} + Bar(foo()) +} + +// effectively: +// struct Foo(Bar); +// struct Bar(Foo); +// should produce an error about infinite size + +fn main() { foo(); } |