Merging upstream version 1.71.1+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 29 insertions, 1 deletions

diff --git a/tests/ui/borrowck/let_underscore_temporary.rs b/tests/ui/borrowck/let_underscore_temporary.rs
index 37b5c5d9d..835cd2079 100644
--- a/tests/ui/borrowck/let_underscore_temporary.rs
+++ b/tests/ui/borrowck/let_underscore_temporary.rs
@@ -1,4 +1,4 @@
-// check-pass
+// check-fail
 
 fn let_underscore(string: &Option<&str>, mut num: Option<i32>) {
     let _ = if let Some(s) = *string { s.len() } else { 0 };
@@ -8,6 +8,7 @@ fn let_underscore(string: &Option<&str>, mut num: Option<i32>) {
         s
     } else {
         &mut 0
+        //~^ ERROR temporary value dropped while borrowed
     };
     let _ = if let Some(ref s) = num { s } else { &0 };
     let _ = if let Some(mut s) = num {
@@ -21,6 +22,33 @@ fn let_underscore(string: &Option<&str>, mut num: Option<i32>) {
         s
     } else {
         &mut 0
+        //~^ ERROR temporary value dropped while borrowed
+    };
+}
+
+fn let_ascribe(string: &Option<&str>, mut num: Option<i32>) {
+    let _: _ = if let Some(s) = *string { s.len() } else { 0 };
+    let _: _ = if let Some(s) = &num { s } else { &0 };
+    let _: _ = if let Some(s) = &mut num {
+        *s += 1;
+        s
+    } else {
+        &mut 0
+        //~^ ERROR temporary value dropped while borrowed
+    };
+    let _: _ = if let Some(ref s) = num { s } else { &0 };
+    let _: _ = if let Some(mut s) = num {
+        s += 1;
+        s
+    } else {
+        0
+    };
+    let _: _ = if let Some(ref mut s) = num {
+        *s += 1;
+        s
+    } else {
+        &mut 0
+        //~^ ERROR temporary value dropped while borrowed
     };
 }