summaryrefslogtreecommitdiffstats
path: root/src/test/ui/implied-bounds/issue-100690.rs
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:06:31 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:06:31 +0000
commit2ff14448863ac1a1dd9533461708e29aae170c2d (patch)
tree85b9fea2bbfe3f06473cfa381eed11f273b57c5c /src/test/ui/implied-bounds/issue-100690.rs
parentAdding debian version 1.64.0+dfsg1-1. (diff)
downloadrustc-2ff14448863ac1a1dd9533461708e29aae170c2d.tar.xz
rustc-2ff14448863ac1a1dd9533461708e29aae170c2d.zip
Adding debian version 1.65.0+dfsg1-2.debian/1.65.0+dfsg1-2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/implied-bounds/issue-100690.rs')
-rw-r--r--src/test/ui/implied-bounds/issue-100690.rs45
1 files changed, 45 insertions, 0 deletions
diff --git a/src/test/ui/implied-bounds/issue-100690.rs b/src/test/ui/implied-bounds/issue-100690.rs
new file mode 100644
index 000000000..5599cd410
--- /dev/null
+++ b/src/test/ui/implied-bounds/issue-100690.rs
@@ -0,0 +1,45 @@
+// This code (probably) _should_ compile, but it currently does not because we
+// are not smart enough about implied bounds.
+
+use std::io;
+
+fn real_dispatch<T, F>(f: F) -> Result<(), io::Error>
+//~^ NOTE required by a bound in this
+where
+ F: FnOnce(&mut UIView<T>) -> Result<(), io::Error> + Send + 'static,
+ //~^ NOTE required by this bound in `real_dispatch`
+ //~| NOTE required by a bound in `real_dispatch`
+{
+ todo!()
+}
+
+#[derive(Debug)]
+struct UIView<'a, T: 'a> {
+ _phantom: std::marker::PhantomData<&'a mut T>,
+}
+
+trait Handle<'a, T: 'a, V, R> {
+ fn dispatch<F>(&self, f: F) -> Result<(), io::Error>
+ where
+ F: FnOnce(&mut V) -> R + Send + 'static;
+}
+
+#[derive(Debug, Clone)]
+struct TUIHandle<T> {
+ _phantom: std::marker::PhantomData<T>,
+}
+
+impl<'a, T: 'a> Handle<'a, T, UIView<'a, T>, Result<(), io::Error>> for TUIHandle<T> {
+ fn dispatch<F>(&self, f: F) -> Result<(), io::Error>
+ where
+ F: FnOnce(&mut UIView<'a, T>) -> Result<(), io::Error> + Send + 'static,
+ {
+ real_dispatch(f)
+ //~^ ERROR expected a `FnOnce<(&mut UIView<'_, T>,)>` closure, found `F`
+ //~| NOTE expected an `FnOnce<(&mut UIView<'_, T>,)>` closure, found `F`
+ //~| NOTE expected a closure with arguments
+ //~| NOTE required by a bound introduced by this call
+ }
+}
+
+fn main() {}