While let suggestion will work for closure

3 files changed, 22 insertions, 0 deletions

diff --git a/tests/ui/inference/issue-113354.fixed b/tests/ui/inference/issue-113354.fixed
new file mode 100644
index 00000000000..804db985ae1
--- /dev/null
+++ b/tests/ui/inference/issue-113354.fixed
@@ -0,0 +1,4 @@
+//run-rustfix
+fn main() {
+    let _ = || { while let Some(_) = Some(1) { } }; //~ ERROR mismatched types
+}
diff --git a/tests/ui/inference/issue-113354.rs b/tests/ui/inference/issue-113354.rs
new file mode 100644
index 00000000000..ec33d1f8b84
--- /dev/null
+++ b/tests/ui/inference/issue-113354.rs
@@ -0,0 +1,4 @@
+//run-rustfix
+fn main() {
+    let _ = || { while Some(_) = Some(1) { } }; //~ ERROR mismatched types
+}
diff --git a/tests/ui/inference/issue-113354.stderr b/tests/ui/inference/issue-113354.stderr
new file mode 100644
index 00000000000..045a5aa7bf0
--- /dev/null
+++ b/tests/ui/inference/issue-113354.stderr
@@ -0,0 +1,14 @@
+error[E0308]: mismatched types
+  --> $DIR/issue-113354.rs:3:24
+   |
+LL |     let _ = || { while Some(_) = Some(1) { } };
+   |                        ^^^^^^^^^^^^^^^^^ expected `bool`, found `()`
+   |
+help: consider adding `let`
+   |
+LL |     let _ = || { while let Some(_) = Some(1) { } };
+   |                        +++
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0308`.