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Accept quantification of lifetimes outside the self type in where clauses.

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Closes #20022
This commit is contained in:
Nick Cameron
2015-02-05 21:46:01 +13:00
parent 012e9643e4
commit 8122ce81d0
10 changed files with 100 additions and 27 deletions
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7
src/libsyntax/fold.rs
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@@ -806,10 +806,12 @@ pub fn noop_fold_where_predicate<T: Folder>(
fld: &mut T)
-> WherePredicate {
match pred {
ast::WherePredicate::BoundPredicate(ast::WhereBoundPredicate{bounded_ty,
ast::WherePredicate::BoundPredicate(ast::WhereBoundPredicate{bound_lifetimes,
bounded_ty,
bounds,
span}) => {
ast::WherePredicate::BoundPredicate(ast::WhereBoundPredicate {
bound_lifetimes: fld.fold_lifetime_defs(bound_lifetimes),
bounded_ty: fld.fold_ty(bounded_ty),
bounds: bounds.move_map(|x| fld.fold_ty_param_bound(x)),
span: fld.new_span(span)
@@ -895,7 +897,8 @@ pub fn noop_fold_trait_ref<T: Folder>(p: TraitRef, fld: &mut T) -> TraitRef {
pub fn noop_fold_poly_trait_ref<T: Folder>(p: PolyTraitRef, fld: &mut T) -> PolyTraitRef {
ast::PolyTraitRef {
bound_lifetimes: fld.fold_lifetime_defs(p.bound_lifetimes),
trait_ref: fld.fold_trait_ref(p.trait_ref)
trait_ref: fld.fold_trait_ref(p.trait_ref),
span: fld.new_span(p.span),
}
}