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Diffstat (limited to 'src/test/ui/borrowck/borrowck-move-mut-base-ptr.rs')
-rw-r--r-- | src/test/ui/borrowck/borrowck-move-mut-base-ptr.rs | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/test/ui/borrowck/borrowck-move-mut-base-ptr.rs b/src/test/ui/borrowck/borrowck-move-mut-base-ptr.rs new file mode 100644 index 000000000..fa2d5531b --- /dev/null +++ b/src/test/ui/borrowck/borrowck-move-mut-base-ptr.rs @@ -0,0 +1,19 @@ +// Test that attempt to move `&mut` pointer while pointee is borrowed +// yields an error. +// +// Example from compiler/rustc_borrowck/borrowck/README.md + + + +fn foo(t0: &mut isize) { + let p: &isize = &*t0; // Freezes `*t0` + let t1 = t0; //~ ERROR cannot move out of `t0` + *t1 = 22; + p.use_ref(); +} + +fn main() { +} + +trait Fake { fn use_mut(&mut self) { } fn use_ref(&self) { } } +impl<T> Fake for T { } |