mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-23 07:14:28 +00:00
27 lines
1.0 KiB
Plaintext
27 lines
1.0 KiB
Plaintext
error[E0597]: `c` does not live long enough
|
|
--> $DIR/shorter-tail-expr-lifetime.rs:10:5
|
|
|
|
|
LL | let c = std::cell::RefCell::new("..");
|
|
| - binding `c` declared here
|
|
LL | c.borrow().len()
|
|
| ^---------
|
|
| |
|
|
| borrowed value does not live long enough
|
|
| a temporary with access to the borrow is created here ...
|
|
LL | }
|
|
| -
|
|
| |
|
|
| `c` dropped here while still borrowed
|
|
| ... and the borrow might be used here, when that temporary is dropped and runs the destructor for type `Ref<'_, &str>`
|
|
|
|
|
= note: the temporary is part of an expression at the end of a block;
|
|
consider forcing this temporary to be dropped sooner, before the block's local variables are dropped
|
|
help: for example, you could save the expression's value in a new local variable `x` and then make `x` be the expression at the end of the block
|
|
|
|
|
LL | let x = c.borrow().len(); x
|
|
| +++++++ +++
|
|
|
|
error: aborting due to 1 previous error
|
|
|
|
For more information about this error, try `rustc --explain E0597`.
|