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Fix invalid bounds string generation in rustdoc

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GuillaumeGomez committed Mar 31, 2019
1 parent 2002b4b commit ddd034aa6f04e7f452bca398e3982c4a5ef6c0bc
@@ -1918,7 +1918,15 @@ fn explicit_predicates_of<'a, 'tcx>(
}
}

let hir_id = tcx.hir().as_local_hir_id(def_id).unwrap();
let hir_id = match tcx.hir().as_local_hir_id(def_id) {
Some(hir_id) => hir_id,
None => {
return Lrc::new(ty::GenericPredicates {
parent: None,
predicates: Vec::new(),
})
}
};
let node = tcx.hir().get_by_hir_id(hir_id);

let mut is_trait = None;
@@ -568,7 +568,7 @@ impl<'a, 'tcx> AutoTraitFinder<'a, 'tcx> {
(replaced.clone(), replaced.clean(self.cx))
});

let full_generics = (&type_generics, &tcx.predicates_of(did));
let full_generics = (&type_generics, &tcx.explicit_predicates_of(did));
let Generics {
params: mut generic_params,
..
@@ -132,7 +132,7 @@ impl<'a, 'tcx> BlanketImplFinder<'a, 'tcx> {
.collect();

let ty = self.cx.get_real_ty(def_id, def_ctor, &real_name, generics);
let predicates = infcx.tcx.predicates_of(impl_def_id);
let predicates = infcx.tcx.explicit_predicates_of(impl_def_id);

impls.push(Item {
source: infcx.tcx.def_span(impl_def_id).clean(self.cx),
@@ -228,7 +228,7 @@ fn build_external_function(cx: &DocContext<'_>, did: DefId) -> clean::Function {
}

fn build_enum(cx: &DocContext<'_>, did: DefId) -> clean::Enum {
let predicates = cx.tcx.predicates_of(did);
let predicates = cx.tcx.explicit_predicates_of(did);

clean::Enum {
generics: (cx.tcx.generics_of(did), &predicates).clean(cx),
@@ -238,7 +238,7 @@ fn build_enum(cx: &DocContext<'_>, did: DefId) -> clean::Enum {
}

fn build_struct(cx: &DocContext<'_>, did: DefId) -> clean::Struct {
let predicates = cx.tcx.predicates_of(did);
let predicates = cx.tcx.explicit_predicates_of(did);
let variant = cx.tcx.adt_def(did).non_enum_variant();

clean::Struct {
@@ -254,7 +254,7 @@ fn build_struct(cx: &DocContext<'_>, did: DefId) -> clean::Struct {
}

fn build_union(cx: &DocContext<'_>, did: DefId) -> clean::Union {
let predicates = cx.tcx.predicates_of(did);
let predicates = cx.tcx.explicit_predicates_of(did);
let variant = cx.tcx.adt_def(did).non_enum_variant();

clean::Union {
@@ -266,7 +266,7 @@ fn build_union(cx: &DocContext<'_>, did: DefId) -> clean::Union {
}

fn build_type_alias(cx: &DocContext<'_>, did: DefId) -> clean::Typedef {
let predicates = cx.tcx.predicates_of(did);
let predicates = cx.tcx.explicit_predicates_of(did);

clean::Typedef {
type_: cx.tcx.type_of(did).clean(cx),
@@ -325,7 +325,7 @@ pub fn build_impl(cx: &DocContext<'_>, did: DefId, ret: &mut Vec<clean::Item>) {
}
}

let predicates = tcx.predicates_of(did);
let predicates = tcx.explicit_predicates_of(did);
let (trait_items, generics) = if let Some(hir_id) = tcx.hir().as_local_hir_id(did) {
match tcx.hir().expect_item_by_hir_id(hir_id).node {
hir::ItemKind::Impl(.., ref gen, _, _, ref item_ids) => {
@@ -2281,7 +2281,7 @@ impl<'tcx> Clean<Item> for ty::AssociatedItem {
}
ty::AssociatedKind::Method => {
let generics = (cx.tcx.generics_of(self.def_id),
&cx.tcx.predicates_of(self.def_id)).clean(cx);
&cx.tcx.explicit_predicates_of(self.def_id)).clean(cx);
let sig = cx.tcx.fn_sig(self.def_id);
let mut decl = (self.def_id, sig).clean(cx);

@@ -2354,7 +2354,7 @@ impl<'tcx> Clean<Item> for ty::AssociatedItem {
// are actually located on the trait/impl itself, so we need to load
// all of the generics from there and then look for bounds that are
// applied to this associated type in question.
let predicates = cx.tcx.predicates_of(did);
let predicates = cx.tcx.explicit_predicates_of(did);
let generics = (cx.tcx.generics_of(did), &predicates).clean(cx);
let mut bounds = generics.where_predicates.iter().filter_map(|pred| {
let (name, self_type, trait_, bounds) = match *pred {
@@ -3062,7 +3062,7 @@ impl<'tcx> Clean<Type> for Ty<'tcx> {
ty::Opaque(def_id, substs) => {
// Grab the "TraitA + TraitB" from `impl TraitA + TraitB`,
// by looking up the projections associated with the def_id.
let predicates_of = cx.tcx.predicates_of(def_id);
let predicates_of = cx.tcx.explicit_predicates_of(def_id);
let substs = cx.tcx.lift(&substs).expect("Opaque lift failed");
let bounds = predicates_of.instantiate(cx.tcx, substs);
let mut regions = vec![];
@@ -0,0 +1,7 @@
use std::marker::PhantomData;

// @has useless_lifetime_bound/struct.Scope.html
// @!has - '//*[@class="rust struct"]' "'env: 'env"
pub struct Scope<'env> {
_marker: PhantomData<&'env mut &'env ()>,
}

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