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-rw-r--r--tests/ui/borrowck/issue-25793.rs26
1 files changed, 26 insertions, 0 deletions
diff --git a/tests/ui/borrowck/issue-25793.rs b/tests/ui/borrowck/issue-25793.rs
new file mode 100644
index 000000000..6c8dacc22
--- /dev/null
+++ b/tests/ui/borrowck/issue-25793.rs
@@ -0,0 +1,26 @@
+#![feature(rustc_attrs)]
+macro_rules! width(
+ ($this:expr) => {
+ $this.width.unwrap()
+ //~^ ERROR cannot use `self.width` because it was mutably borrowed
+ }
+);
+
+struct HasInfo {
+ width: Option<usize>
+}
+
+impl HasInfo {
+ fn get_size(&mut self, n: usize) -> usize {
+ n
+ }
+
+ fn get_other(&mut self) -> usize {
+ let r = &mut *self;
+ r.get_size(width!(self))
+ }
+ // Above is like `self.get_size(width!(self))`, but it
+ // deliberately avoids NLL's two phase borrow feature.
+}
+
+fn main() { }