8d27232141
This patch primarily does two things: (1) it prevents lifetimes from
leaking out of unboxed closures; (2) it allows unboxed closure type
notation, call notation, and construction notation to construct closures
matching any of the three traits.
This breaks code that looked like:
let mut f;
{
let x = &5i;
f = |&mut:| *x + 10;
}
Change this code to avoid having a reference escape. For example:
{
let x = &5i;
let mut f; // <-- move here to avoid dangling reference
f = |&mut:| *x + 10;
}
I believe this is enough to consider unboxed closures essentially
implemented. Further issues (for example, higher-rank lifetimes) should
be filed as followups.
Closes #14449.
[breaking-change]
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||
|---|---|---|
| .. | ||
| common.rs | ||
| creader.rs | ||
| csearch.rs | ||
| cstore.rs | ||
| decoder.rs | ||
| encoder.rs | ||
| filesearch.rs | ||
| loader.rs | ||
| mod.rs | ||
| tydecode.rs | ||
| tyencode.rs | ||