1 files changed, 40 insertions, 0 deletions
diff --git a/src/test/ui/borrowck/borrowck-loan-rcvr.rs b/src/test/ui/borrowck/borrowck-loan-rcvr.rs
new file mode 100644
index 000000000..d2234e17a
--- /dev/null
+++ b/src/test/ui/borrowck/borrowck-loan-rcvr.rs
@@ -0,0 +1,40 @@
+struct Point { x: isize, y: isize }
+
+trait Methods {
+    fn impurem(&self);
+    fn blockm<F>(&self, f: F) where F: FnOnce();
+}
+
+impl Methods for Point {
+    fn impurem(&self) {
+    }
+
+    fn blockm<F>(&self, f: F) where F: FnOnce() { f() }
+}
+
+fn a() {
+    let mut p = Point {x: 3, y: 4};
+
+    // Here: it's ok to call even though receiver is mutable, because we
+    // can loan it out.
+    p.impurem();
+
+    // But in this case we do not honor the loan:
+    p.blockm(|| { //~ ERROR cannot borrow `p` as mutable
+        p.x = 10;
+    })
+}
+
+fn b() {
+    let mut p = Point {x: 3, y: 4};
+
+    // Here I create an outstanding loan and check that we get conflicts:
+
+    let l = &mut p;
+    p.impurem(); //~ ERROR cannot borrow
+
+    l.x += 1;
+}
+
+fn main() {
+}