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ignore higher-ranked object bound conditions created by WF #59132

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Merged
bors merged 2 commits into from
Mar 13, 2019
Merged

ignore higher-ranked object bound conditions created by WF #59132

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4632e33
add a useful debug printout
nikomatsakis Mar 12, 2019
261daf2
ignore higher-ranked WF requirements for trait objects
nikomatsakis Mar 12, 2019
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add a useful debug printout
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@nikomatsakis
nikomatsakis committed Mar 12, 2019
commit 4632e3345b77b3262dd2b33654d9d11d0fc0912d
2 changes: 2 additions & 0 deletions src/librustc/traits/fulfill.rs
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Expand Up @@ -275,6 +275,8 @@ impl<'a, 'b, 'gcx, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'b, 'gcx,
self.selcx.infcx().resolve_type_vars_if_possible(&obligation.predicate);
}

debug!("process_obligation: obligation = {:?}", obligation);

match obligation.predicate {
ty::Predicate::Trait(ref data) => {
let trait_obligation = obligation.with(data.clone());
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