mirror of
https://github.com/rust-lang/rust.git
synced 2024-12-18 03:25:55 +00:00
76 lines
3.3 KiB
Plaintext
76 lines
3.3 KiB
Plaintext
error[E0499]: cannot borrow `x` as mutable more than once at a time
|
|
--> $DIR/borrowck-closures-two-mut.rs:12:24
|
|
|
|
|
LL | let c1 = to_fn_mut(|| x = 4);
|
|
| -- - first borrow occurs due to use of `x` in closure
|
|
| |
|
|
| first mutable borrow occurs here
|
|
LL | let c2 = to_fn_mut(|| x = 5);
|
|
| ^^ - second borrow occurs due to use of `x` in closure
|
|
| |
|
|
| second mutable borrow occurs here
|
|
LL | drop((c1, c2));
|
|
| -- first borrow later used here
|
|
|
|
error[E0499]: cannot borrow `x` as mutable more than once at a time
|
|
--> $DIR/borrowck-closures-two-mut.rs:23:24
|
|
|
|
|
LL | let c1 = to_fn_mut(|| set(&mut x));
|
|
| -- - first borrow occurs due to use of `x` in closure
|
|
| |
|
|
| first mutable borrow occurs here
|
|
LL | let c2 = to_fn_mut(|| set(&mut x));
|
|
| ^^ - second borrow occurs due to use of `x` in closure
|
|
| |
|
|
| second mutable borrow occurs here
|
|
LL | drop((c1, c2));
|
|
| -- first borrow later used here
|
|
|
|
error[E0499]: cannot borrow `x` as mutable more than once at a time
|
|
--> $DIR/borrowck-closures-two-mut.rs:30:24
|
|
|
|
|
LL | let c1 = to_fn_mut(|| x = 5);
|
|
| -- - first borrow occurs due to use of `x` in closure
|
|
| |
|
|
| first mutable borrow occurs here
|
|
LL | let c2 = to_fn_mut(|| set(&mut x));
|
|
| ^^ - second borrow occurs due to use of `x` in closure
|
|
| |
|
|
| second mutable borrow occurs here
|
|
LL | drop((c1, c2));
|
|
| -- first borrow later used here
|
|
|
|
error[E0499]: cannot borrow `x` as mutable more than once at a time
|
|
--> $DIR/borrowck-closures-two-mut.rs:37:24
|
|
|
|
|
LL | let c1 = to_fn_mut(|| x = 5);
|
|
| -- - first borrow occurs due to use of `x` in closure
|
|
| |
|
|
| first mutable borrow occurs here
|
|
LL | let c2 = to_fn_mut(|| { let _y = to_fn_mut(|| set(&mut x)); }); // (nested closure)
|
|
| ^^ - second borrow occurs due to use of `x` in closure
|
|
| |
|
|
| second mutable borrow occurs here
|
|
LL |
|
|
LL | drop((c1, c2));
|
|
| -- first borrow later used here
|
|
|
|
error[E0499]: cannot borrow `x` as mutable more than once at a time
|
|
--> $DIR/borrowck-closures-two-mut.rs:49:24
|
|
|
|
|
LL | let c1 = to_fn_mut(|| set(&mut *x.f));
|
|
| -- ---- first borrow occurs due to use of `x` in closure
|
|
| |
|
|
| first mutable borrow occurs here
|
|
LL | let c2 = to_fn_mut(|| set(&mut *x.f));
|
|
| ^^ ---- second borrow occurs due to use of `x` in closure
|
|
| |
|
|
| second mutable borrow occurs here
|
|
LL |
|
|
LL | drop((c1, c2));
|
|
| -- first borrow later used here
|
|
|
|
error: aborting due to 5 previous errors
|
|
|
|
For more information about this error, try `rustc --explain E0499`.
|