bjoernager/rust
bjoernager/rust
1
Fork 0
Code Issues Pull requests Activity

Rollup merge of #79325 - LingMan:try_op, r=jonas-schievink

Browse source 
Reduce boilerplate with the `?` operator

`@rustbot` modify labels to +C-cleanup.
This commit is contained in:
Jonas Schievink 2020-11-23 15:25:47 +01:00 • committed by GitHub
commit b4db342f51
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
2 changed files with 9 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

10
compiler/rustc_trait_selection/src/traits/select/mod.rs
View file

@ -2372,13 +2372,9 @@ impl<'o, 'tcx> Iterator for TraitObligationStackList<'o, 'tcx> {
type Item = &'o TraitObligationStack<'o, 'tcx>;
fn next(&mut self) -> Option<&'o TraitObligationStack<'o, 'tcx>> {
match self.head {
Some(o) => {
*self = o.previous;
Some(o)
}
None => None,
}
let o = self.head?;
*self = o.previous;
Some(o)
}
}