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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/impl-trait/issues/issue-55608-captures-empty-region.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/impl-trait/issues/issue-55608-captures-empty-region.rs')
-rw-r--r--src/test/ui/impl-trait/issues/issue-55608-captures-empty-region.rs22
1 files changed, 22 insertions, 0 deletions
diff --git a/src/test/ui/impl-trait/issues/issue-55608-captures-empty-region.rs b/src/test/ui/impl-trait/issues/issue-55608-captures-empty-region.rs
new file mode 100644
index 000000000..0c34c97e2
--- /dev/null
+++ b/src/test/ui/impl-trait/issues/issue-55608-captures-empty-region.rs
@@ -0,0 +1,22 @@
+// This used to ICE because it creates an `impl Trait` that captures a
+// hidden empty region.
+
+// check-pass
+
+fn server() -> impl FilterBase2 {
+ segment2(|| { loop { } }).map2(|| "")
+}
+
+trait FilterBase2 {
+ fn map2<F>(self, _fn: F) -> Map2<F> where Self: Sized { loop { } }
+}
+
+struct Map2<F> { _func: F }
+
+impl<F> FilterBase2 for Map2<F> { }
+
+fn segment2<F>(_fn: F) -> Map2<F> where F: Fn() -> Result<(), ()> {
+ loop { }
+}
+
+fn main() { server(); }