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Rephrase improperly reduced borrows introduction #352

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Merged
JohnTitor merged 2 commits into from
May 7, 2022
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Rephrase improperly reduced borrows introduction #352

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e5aec91
Rephrase improperly reduced borrows introduction
Arthur-Milchior May 5, 2022
01b1274
Update src/lifetime-mismatch.md
JohnTitor May 7, 2022
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7 changes: 4 additions & 3 deletions src/lifetime-mismatch.md
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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.

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