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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:03 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:03 +0000
commit64d98f8ee037282c35007b64c2649055c56af1db (patch)
tree5492bcf97fce41ee1c0b1cc2add283f3e66cdab0 /tests/ui/borrowck/borrowck-report-with-custom-diagnostic.rs
parentAdding debian version 1.67.1+dfsg1-1. (diff)
downloadrustc-64d98f8ee037282c35007b64c2649055c56af1db.tar.xz
rustc-64d98f8ee037282c35007b64c2649055c56af1db.zip
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/borrowck/borrowck-report-with-custom-diagnostic.rs')
-rw-r--r--tests/ui/borrowck/borrowck-report-with-custom-diagnostic.rs44
1 files changed, 44 insertions, 0 deletions
diff --git a/tests/ui/borrowck/borrowck-report-with-custom-diagnostic.rs b/tests/ui/borrowck/borrowck-report-with-custom-diagnostic.rs
new file mode 100644
index 000000000..6f323d912
--- /dev/null
+++ b/tests/ui/borrowck/borrowck-report-with-custom-diagnostic.rs
@@ -0,0 +1,44 @@
+#![feature(rustc_attrs)]
+#![allow(dead_code)]
+fn main() { #![rustc_error] // rust-lang/rust#49855
+ // Original borrow ends at end of function
+ let mut x = 1;
+ let y = &mut x;
+ //~^ mutable borrow occurs here
+ let z = &x; //~ ERROR cannot borrow
+ //~^ immutable borrow occurs here
+ z.use_ref();
+ y.use_mut();
+}
+
+fn foo() {
+ match true {
+ true => {
+ // Original borrow ends at end of match arm
+ let mut x = 1;
+ let y = &x;
+ //~^ immutable borrow occurs here
+ let z = &mut x; //~ ERROR cannot borrow
+ //~^ mutable borrow occurs here
+ z.use_mut();
+ y.use_ref();
+ }
+ false => ()
+ }
+}
+
+fn bar() {
+ // Original borrow ends at end of closure
+ || {
+ let mut x = 1;
+ let y = &mut x;
+ //~^ first mutable borrow occurs here
+ let z = &mut x; //~ ERROR cannot borrow
+ //~^ second mutable borrow occurs here
+ z.use_mut();
+ y.use_mut();
+ };
+}
+
+trait Fake { fn use_mut(&mut self) { } fn use_ref(&self) { } }
+impl<T> Fake for T { }