rust/tests/ui/span/issue-23338-locals-die-before-temps-of-body.stderr

error[E0597]: `y` does not live long enough
  --> $DIR/issue-23338-locals-die-before-temps-of-body.rs:10:5
   |
LL |     let y = x;
   |         - binding `y` declared here
LL |     y.borrow().clone()
   |     ^---------
   |     |
   |     borrowed value does not live long enough
   |     a temporary with access to the borrow is created here ...
LL | }
   | -
   | |
   | `y` dropped here while still borrowed
   | ... and the borrow might be used here, when that temporary is dropped and runs the destructor for type `Ref<'_, String>`
   |
   = 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 = y.borrow().clone(); x
   |     +++++++                   +++

error[E0597]: `y` does not live long enough
  --> $DIR/issue-23338-locals-die-before-temps-of-body.rs:17:9
   |
LL |         let y = x;
   |             - binding `y` declared here
LL |         y.borrow().clone()
   |         ^---------
   |         |
   |         borrowed value does not live long enough
   |         a temporary with access to the borrow is created here ...
LL |     };
   |     -- ... and the borrow might be used here, when that temporary is dropped and runs the destructor for type `Ref<'_, String>`
   |     |
   |     `y` dropped here while still borrowed
   |
   = 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 = y.borrow().clone(); x
   |         +++++++                   +++

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0597`.
Add new error codes and update tests 2017-05-27 17:58:52 +00:00			error[E0597]: `y` does not live long enough
Remove licenses 2018-12-25 15:56:47 +00:00			`--> $DIR/issue-23338-locals-die-before-temps-of-body.rs:10:5`
improve "Doesn't live long enough" error 2016-10-14 15:55:45 +00:00			`\|`
Account for method call and indexing when looking for inner-most path in expression 2023-01-17 02:52:43 +00:00			`LL \| let y = x;`
			\| - binding `y` declared here
Update UI tests 2018-02-23 00:42:32 +00:00			`LL \| y.borrow().clone()`
Do not set up wrong span for adjustments 2023-06-22 20:30:23 +00:00			`\| ^---------`
update tests for migrate mode by default 2019-04-22 07:40:08 +00:00			`\| \|`
			`\| borrowed value does not live long enough`
			`\| a temporary with access to the borrow is created here ...`
Update UI tests 2018-02-23 00:42:32 +00:00			`LL \| }`
update tests for migrate mode by default 2019-04-22 07:40:08 +00:00			`\| -`
			`\| \|`
			\| `y` dropped here while still borrowed
pretty: trim paths of unique symbols If a symbol name can only be imported from one place for a type, and as long as it was not glob-imported anywhere in the current crate, we can trim its printed path and print only the name. This has wide implications on error messages with types, for example, shortening `std::vec::Vec` to just `Vec`, as long as there is no other `Vec` importable anywhere. This adds a new '-Z trim-diagnostic-paths=false' option to control this feature. On the good path, with no diagnosis printed, we should try to avoid issuing this query, so we need to prevent trimmed_def_paths query on several cases. This change also relies on a previous commit that differentiates between `Debug` and `Display` on various rustc types, where the latter is trimmed and presented to the user and the former is not. 2020-09-02 07:40:56 +00:00			\| ... and the borrow might be used here, when that temporary is dropped and runs the destructor for type `Ref<'_, String>`
improve "Doesn't live long enough" error 2016-10-14 15:55:45 +00:00			`\|`
Suggest `;` or assignment to drop borrows in tail exprs Address the diagnostics part of #70844. ``` error[E0597]: `counter` does not live long enough --> $DIR/issue-54556-niconii.rs:22:20 \| LL \| if let Ok(_) = counter.lock() { } \| ^^^^^^^------- \| \| \| borrowed value does not live long enough \| a temporary with access to the borrow is created here ... ... LL \| } \| - \| \| \| `counter` dropped here while still borrowed \| ... and the borrow might be used here, when that temporary is dropped and runs the destructor for type `std::result::Result<MutexGuard<'_>, ()>` \| help: consider adding semicolon after the expression so its temporaries are dropped sooner, before the local variables declared by the block are dropped \| LL \| if let Ok(_) = counter.lock() { }; \| ^ ``` 2020-04-16 19:43:40 +00:00			`= 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 = y.borrow().clone(); x`
Modify structured suggestion output * On suggestions that include deletions, use a diff inspired output format * When suggesting addition, use `+` as underline * Color highlight modified span 2021-06-22 02:07:19 +00:00			`\| +++++++ +++`
improve "Doesn't live long enough" error 2016-10-14 15:55:45 +00:00
Add new error codes and update tests 2017-05-27 17:58:52 +00:00			error[E0597]: `y` does not live long enough
Remove licenses 2018-12-25 15:56:47 +00:00			`--> $DIR/issue-23338-locals-die-before-temps-of-body.rs:17:9`
improve "Doesn't live long enough" error 2016-10-14 15:55:45 +00:00			`\|`
Account for method call and indexing when looking for inner-most path in expression 2023-01-17 02:52:43 +00:00			`LL \| let y = x;`
			\| - binding `y` declared here
Update UI tests 2018-02-23 00:42:32 +00:00			`LL \| y.borrow().clone()`
Do not set up wrong span for adjustments 2023-06-22 20:30:23 +00:00			`\| ^---------`
update tests for migrate mode by default 2019-04-22 07:40:08 +00:00			`\| \|`
			`\| borrowed value does not live long enough`
			`\| a temporary with access to the borrow is created here ...`
Update UI tests 2018-02-23 00:42:32 +00:00			`LL \| };`
pretty: trim paths of unique symbols If a symbol name can only be imported from one place for a type, and as long as it was not glob-imported anywhere in the current crate, we can trim its printed path and print only the name. This has wide implications on error messages with types, for example, shortening `std::vec::Vec` to just `Vec`, as long as there is no other `Vec` importable anywhere. This adds a new '-Z trim-diagnostic-paths=false' option to control this feature. On the good path, with no diagnosis printed, we should try to avoid issuing this query, so we need to prevent trimmed_def_paths query on several cases. This change also relies on a previous commit that differentiates between `Debug` and `Display` on various rustc types, where the latter is trimmed and presented to the user and the former is not. 2020-09-02 07:40:56 +00:00			\| -- ... and the borrow might be used here, when that temporary is dropped and runs the destructor for type `Ref<'_, String>`
improve "Doesn't live long enough" error 2016-10-14 15:55:45 +00:00			`\| \|`
Improve "Doesn't live long enough" error case with different lifetime with spans 2016-10-26 16:10:39 +00:00			\| `y` dropped here while still borrowed
update tests for migrate mode by default 2019-04-22 07:40:08 +00:00			`\|`
Suggest `;` or assignment to drop borrows in tail exprs Address the diagnostics part of #70844. ``` error[E0597]: `counter` does not live long enough --> $DIR/issue-54556-niconii.rs:22:20 \| LL \| if let Ok(_) = counter.lock() { } \| ^^^^^^^------- \| \| \| borrowed value does not live long enough \| a temporary with access to the borrow is created here ... ... LL \| } \| - \| \| \| `counter` dropped here while still borrowed \| ... and the borrow might be used here, when that temporary is dropped and runs the destructor for type `std::result::Result<MutexGuard<'_>, ()>` \| help: consider adding semicolon after the expression so its temporaries are dropped sooner, before the local variables declared by the block are dropped \| LL \| if let Ok(_) = counter.lock() { }; \| ^ ``` 2020-04-16 19:43:40 +00:00			`= 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 = y.borrow().clone(); x`
Modify structured suggestion output * On suggestions that include deletions, use a diff inspired output format * When suggesting addition, use `+` as underline * Color highlight modified span 2021-06-22 02:07:19 +00:00			`\| +++++++ +++`
improve "Doesn't live long enough" error 2016-10-14 15:55:45 +00:00
Revert "Change error count messages" This reverts commit 5558c64f33446225739c1153b43d2e309bb4f50e. 2017-07-02 10:49:30 +00:00			`error: aborting due to 2 previous errors`
improve "Doesn't live long enough" error 2016-10-14 15:55:45 +00:00
update tests 2018-03-03 14:59:40 +00:00			For more information about this error, try `rustc --explain E0597`.