/
borrow-immutable-upvar-mutation.stderr
78 lines (71 loc) · 3.18 KB
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borrow-immutable-upvar-mutation.stderr
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error[E0387]: cannot assign to data in a captured outer variable in an `Fn` closure
--> $DIR/borrow-immutable-upvar-mutation.rs:15:27
|
LL | let _f = to_fn(|| x = 42);
| ^^^^^^
|
help: consider changing this closure to take self by mutable reference
--> $DIR/borrow-immutable-upvar-mutation.rs:15:24
|
LL | let _f = to_fn(|| x = 42);
| ^^^^^^^^^
error[E0387]: cannot borrow data mutably in a captured outer variable in an `Fn` closure
--> $DIR/borrow-immutable-upvar-mutation.rs:18:36
|
LL | let _g = to_fn(|| set(&mut y));
| ^
|
help: consider changing this closure to take self by mutable reference
--> $DIR/borrow-immutable-upvar-mutation.rs:18:24
|
LL | let _g = to_fn(|| set(&mut y));
| ^^^^^^^^^^^^^^
error[E0387]: cannot assign to data in a captured outer variable in an `Fn` closure
--> $DIR/borrow-immutable-upvar-mutation.rs:21:55
|
LL | let _h = to_fn_mut(|| { set(&mut z); to_fn(|| z = 42); });
| ^^^^^^
|
help: consider changing this closure to take self by mutable reference
--> $DIR/borrow-immutable-upvar-mutation.rs:21:52
|
LL | let _h = to_fn_mut(|| { set(&mut z); to_fn(|| z = 42); });
| ^^^^^^^^^
error[E0594]: cannot assign to captured outer variable in an `Fn` closure
--> $DIR/borrow-immutable-upvar-mutation.rs:27:32
|
LL | let _f = to_fn(move || x = 42);
| ^^^^^^
|
= note: `Fn` closures cannot capture their enclosing environment for modifications
help: consider changing this closure to take self by mutable reference
--> $DIR/borrow-immutable-upvar-mutation.rs:27:24
|
LL | let _f = to_fn(move || x = 42);
| ^^^^^^^^^^^^^^
error[E0596]: cannot borrow captured outer variable in an `Fn` closure as mutable
--> $DIR/borrow-immutable-upvar-mutation.rs:30:41
|
LL | let _g = to_fn(move || set(&mut y));
| ^
|
help: consider changing this closure to take self by mutable reference
--> $DIR/borrow-immutable-upvar-mutation.rs:30:24
|
LL | let _g = to_fn(move || set(&mut y));
| ^^^^^^^^^^^^^^^^^^^
error[E0594]: cannot assign to captured outer variable in an `Fn` closure
--> $DIR/borrow-immutable-upvar-mutation.rs:33:65
|
LL | let _h = to_fn_mut(move || { set(&mut z); to_fn(move || z = 42); });
| ^^^^^^
|
= note: `Fn` closures cannot capture their enclosing environment for modifications
help: consider changing this closure to take self by mutable reference
--> $DIR/borrow-immutable-upvar-mutation.rs:33:57
|
LL | let _h = to_fn_mut(move || { set(&mut z); to_fn(move || z = 42); });
| ^^^^^^^^^^^^^^
error: aborting due to 6 previous errors
Some errors have detailed explanations: E0387, E0596.
For more information about an error, try `rustc --explain E0387`.