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This commit is contained in:
John Kåre Alsaker 2017-07-13 02:32:36 +02:00
parent 098d6f0597
commit 75eb59895f
1 changed files with 3 additions and 0 deletions
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3
src/librustc/traits/select.rs
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@ -1500,6 +1500,9 @@ impl<'cx, 'gcx, 'tcx> SelectionContext<'cx, 'gcx, 'tcx> {
return Ok(()); return Ok(());
} }
// ok to skip binder because the substs on generator types never
// touch bound regions, they just capture the in-scope
// type/region parameters
let self_ty = *obligation.self_ty().skip_binder(); let self_ty = *obligation.self_ty().skip_binder();
let (closure_def_id, substs) = match self_ty.sty { let (closure_def_id, substs) = match self_ty.sty {
ty::TyGenerator(id, substs, _) => (id, substs), ty::TyGenerator(id, substs, _) => (id, substs),