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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/mut/mut-cant-alias.rs | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/test/ui/mut/mut-cant-alias.rs b/src/test/ui/mut/mut-cant-alias.rs new file mode 100644 index 000000000..9146b931a --- /dev/null +++ b/src/test/ui/mut/mut-cant-alias.rs @@ -0,0 +1,14 @@ +use std::cell::RefCell; + + + +fn main() { + let m = RefCell::new(0); + let mut b = m.borrow_mut(); + let b1 = &mut *b; + let b2 = &mut *b; //~ ERROR cannot borrow + b1.use_mut(); +} + +trait Fake { fn use_mut(&mut self) { } fn use_ref(&self) { } } +impl<T> Fake for T { } |