diff options
Diffstat (limited to 'src/test/ui/typeck/assign-non-lval-mut-ref.stderr')
| -rw-r--r-- | src/test/ui/typeck/assign-non-lval-mut-ref.stderr | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/src/test/ui/typeck/assign-non-lval-mut-ref.stderr b/src/test/ui/typeck/assign-non-lval-mut-ref.stderr new file mode 100644 index 000000000..be2e9fe95 --- /dev/null +++ b/src/test/ui/typeck/assign-non-lval-mut-ref.stderr @@ -0,0 +1,56 @@ +error[E0070]: invalid left-hand side of assignment + --> $DIR/assign-non-lval-mut-ref.rs:5:27 + | +LL | x.last_mut().unwrap() = 2; + | --------------------- ^ + | | + | cannot assign to this expression + | +help: consider dereferencing here to assign to the mutably borrowed value + | +LL | *x.last_mut().unwrap() = 2; + | + + +error[E0368]: binary assignment operation `+=` cannot be applied to type `&mut usize` + --> $DIR/assign-non-lval-mut-ref.rs:7:5 + | +LL | x.last_mut().unwrap() += 1; + | ---------------------^^^^^ + | | + | cannot use `+=` on type `&mut usize` + | +help: `+=` can be used on `usize`, you can dereference `x.last_mut().unwrap()` + | +LL | *x.last_mut().unwrap() += 1; + | + + +error[E0308]: mismatched types + --> $DIR/assign-non-lval-mut-ref.rs:11:9 + | +LL | let y = x.last_mut().unwrap(); + | --------------------- expected due to this value +LL | y = 2; + | ^ expected `&mut usize`, found integer + | +help: consider dereferencing here to assign to the mutably borrowed value + | +LL | *y = 2; + | + + +error[E0368]: binary assignment operation `+=` cannot be applied to type `&mut usize` + --> $DIR/assign-non-lval-mut-ref.rs:13:5 + | +LL | y += 1; + | -^^^^^ + | | + | cannot use `+=` on type `&mut usize` + | +help: `+=` can be used on `usize`, you can dereference `y` + | +LL | *y += 1; + | + + +error: aborting due to 4 previous errors + +Some errors have detailed explanations: E0070, E0308, E0368. +For more information about an error, try `rustc --explain E0070`. |