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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/issues/issue-28550.rs
parentInitial commit. (diff)
downloadrustc-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/issues/issue-28550.rs')
-rw-r--r--src/test/ui/issues/issue-28550.rs16
1 files changed, 16 insertions, 0 deletions
diff --git a/src/test/ui/issues/issue-28550.rs b/src/test/ui/issues/issue-28550.rs
new file mode 100644
index 000000000..95583f805
--- /dev/null
+++ b/src/test/ui/issues/issue-28550.rs
@@ -0,0 +1,16 @@
+// run-pass
+struct A<F: FnOnce()->T,T>(F::Output);
+struct B<F: FnOnce()->T,T>(A<F,T>);
+
+// Removing Option causes it to compile.
+fn foo<T,F: FnOnce()->T>(f: F) -> Option<B<F,T>> {
+ Some(B(A(f())))
+}
+
+fn main() {
+ let v = (|| foo(||4))();
+ match v {
+ Some(B(A(4))) => {},
+ _ => unreachable!()
+ }
+}