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Unnest some .chain calls, so it's clearer what's going on.

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This commit is contained in:
Benjamin Peterson 2020-10-20 23:10:47 -05:00
parent cb56b1a7e9
commit 4d8a7c2829
1 changed files with 10 additions and 14 deletions
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24
compiler/rustc_typeck/src/bounds.rs
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@ -67,22 +67,18 @@ impl<'tcx> Bounds<'tcx> {
sized_predicate sized_predicate
.into_iter() .into_iter()
.chain(self.region_bounds.iter().map(|&(region_bound, span)| {
let outlives = ty::OutlivesPredicate(param_ty, region_bound);
(ty::Binder::bind(outlives).to_predicate(tcx), span)
}))
.chain(self.trait_bounds.iter().map(|&(bound_trait_ref, span, constness)| {
let predicate = bound_trait_ref.with_constness(constness).to_predicate(tcx);
(predicate, span)
}))
.chain( .chain(
self.region_bounds self.projection_bounds
.iter() .iter()
.map(|&(region_bound, span)| { .map(|&(projection, span)| (projection.to_predicate(tcx), span)),
let outlives = ty::OutlivesPredicate(param_ty, region_bound);
(ty::Binder::bind(outlives).to_predicate(tcx), span)
})
.chain(self.trait_bounds.iter().map(|&(bound_trait_ref, span, constness)| {
let predicate = bound_trait_ref.with_constness(constness).to_predicate(tcx);
(predicate, span)
}))
.chain(
self.projection_bounds
.iter()
.map(|&(projection, span)| (projection.to_predicate(tcx), span)),
),
) )
.collect() .collect()
} }