bjoernager/rust
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Fix missing impl trait display as ret type

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This commit is contained in:
Guillaume Gomez 2018-08-21 00:43:02 +02:00
parent bf1e461173
commit e67bba8ebe
2 changed files with 49 additions and 0 deletions
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9
src/librustdoc/clean/mod.rs
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@ -2378,6 +2378,7 @@ impl From<ast::FloatTy> for PrimitiveType {
impl Clean<Type> for hir::Ty {
fn clean(&self, cx: &DocContext) -> Type {
use rustc::hir::*;
match self.node {
TyKind::Never => Never,
TyKind::Ptr(ref m) => RawPointer(m.mutbl.clean(cx), box m.ty.clean(cx)),
@ -2415,6 +2416,14 @@ impl Clean<Type> for hir::Ty {
if let Some(bounds) = cx.impl_trait_bounds.borrow_mut().remove(&did) {
return ImplTrait(bounds);
}
} else if let Def::Existential(did) = path.def {
// This block is for returned impl trait only.
if let Some(node_id) = cx.tcx.hir.as_local_node_id(did) {
let item = cx.tcx.hir.expect_item(node_id);
if let hir::ItemKind::Existential(ref ty) = item.node {
return ImplTrait(ty.bounds.clean(cx));
}
}
}
let mut alias = None;