Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Rephrase improperly reduced borrows introduction #352

Merged
merged 2 commits into from
May 7, 2022
Merged

Rephrase improperly reduced borrows introduction #352

Changes from 1 commit
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
e5aec91
Rephrase improperly reduced borrows introduction
Arthur-Milchior May 5, 2022
01b1274
Update src/lifetime-mismatch.md
JohnTitor May 7, 2022
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
7 changes: 4 additions & 3 deletions src/lifetime-mismatch.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -73,9 +73,10 @@ care about, but the lifetime system is too coarse-grained to handle that.

## Improperly reduced borrows

The following code fails to compile, because Rust doesn't understand that the borrow
is no longer needed and conservatively falls back to using a whole scope for it.
This will eventually get fixed.
The following code fails to compile, because Rust sees that a variable, `map`,
is borrowed twice, and can not infer that the first borrow stops to be needed
before the second one occurs. This is caused by Rust conservatively falling back
to using a whole scope for the first borow. This will eventually get fixed.
JohnTitor marked this conversation as resolved.
Show resolved Hide resolved

```rust,compile_fail
# use std::collections::HashMap;
Expand Down