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Remove unnecessary mut binding #79516

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Merged
merged 1 commit into from
Nov 29, 2020
Merged

Remove unnecessary mut binding #79516

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3 changes: 1 addition & 2 deletions compiler/rustc_trait_selection/src/traits/select/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -833,11 +833,10 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
/// - it also appears in the backtrace at some position `X`,
/// - all the predicates at positions `X..` between `X` and the top are
/// also defaulted traits.
pub fn coinductive_match<I>(&mut self, cycle: I) -> bool
pub fn coinductive_match<I>(&mut self, mut cycle: I) -> bool
where
I: Iterator<Item = ty::Predicate<'tcx>>,
{
let mut cycle = cycle;
cycle.all(|predicate| self.coinductive_predicate(predicate))
}

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