Include type alias implementations

src/librustdoc/html/render.rs

@@ -2595,7 +2595,7 @@ fn item_trait(w: &mut Buffer, cx: &Context, it: &clean::Item, t: &clean::Trait)
     }
 
     // If there are methods directly on this trait object, render them here.
-    render_assoc_items(w, cx, it, it.def_id, AssocItemRender::All);
+    render_assoc_items(w, cx, it, it.def_id, &AssocItemRender::All);
 
     let mut synthetic_types = Vec::new();
 
@@ -2942,7 +2942,7 @@ fn item_struct(w: &mut Buffer, cx: &Context, it: &clean::Item, s: &clean::Struct
             }
         }
     }
-    render_assoc_items(w, cx, it, it.def_id, AssocItemRender::All)
+    render_assoc_items(w, cx, it, it.def_id, &AssocItemRender::All)
 }
 
 fn item_union(w: &mut Buffer, cx: &Context, it: &clean::Item, s: &clean::Union) {
@@ -2988,7 +2988,7 @@ fn item_union(w: &mut Buffer, cx: &Context, it: &clean::Item, s: &clean::Union)
             document(w, cx, field);
         }
     }
-    render_assoc_items(w, cx, it, it.def_id, AssocItemRender::All)
+    render_assoc_items(w, cx, it, it.def_id, &AssocItemRender::All)
 }
 
 fn item_enum(w: &mut Buffer, cx: &Context, it: &clean::Item, e: &clean::Enum) {
@@ -3130,7 +3130,7 @@ fn item_enum(w: &mut Buffer, cx: &Context, it: &clean::Item, e: &clean::Enum) {
             render_stability_since(w, variant, it);
         }
     }
-    render_assoc_items(w, cx, it, it.def_id, AssocItemRender::All)
+    render_assoc_items(w, cx, it, it.def_id, &AssocItemRender::All)
 }
 
 fn render_attribute(attr: &ast::MetaItem) -> Option<String> {
@@ -3344,7 +3344,7 @@ fn render_assoc_items(
     cx: &Context,
     containing_item: &clean::Item,
     it: DefId,
-    what: AssocItemRender<'_>,
+    what: &AssocItemRender<'_>,
 ) {
     let c = &cx.cache;
     let v = match c.impls.get(&it) {
@@ -3377,7 +3377,7 @@ fn render_assoc_items(
                     trait_.print(),
                     type_.print()
                 );
-                RenderMode::ForDeref { mut_: deref_mut_ }
+                RenderMode::ForDeref { mut_: *deref_mut_ }
             }
         };
         for i in &non_trait {
@@ -3461,6 +3461,19 @@ fn render_assoc_items(
     }
 }
 
+fn get_def_id(real_target: &clean::Type, cx: &Context) -> Option<DefId> {
+    if let Some(did) = real_target.def_id() {
+        return Some(did);
+    } else {
+        if let Some(prim) = real_target.primitive_type() {
+            if let Some(&did) = cx.cache.primitive_locations.get(&prim) {
+                return Some(did);
+            }
+        }
+    }
+    None
+}
+
 fn render_deref_methods(
     w: &mut Buffer,
     cx: &Context,
@@ -3475,23 +3488,21 @@ fn render_deref_methods(
         .iter()
         .filter_map(|item| match item.inner {
             clean::TypedefItem(ref t, true) => Some(match *t {
-                clean::Typedef { item_type: Some(ref type_), .. } => (&t.type_, type_),
-                _ => (&t.type_, &t.type_),
+                clean::Typedef { item_type: Some(ref type_), .. } => (&t.type_, Some(type_)),
+                _ => (&t.type_, None),
             }),
             _ => None,
         })
         .next()
         .expect("Expected associated type binding");
+    let did = get_def_id(&target, cx);
     let what =
         AssocItemRender::DerefFor { trait_: deref_type, type_: target, deref_mut_: deref_mut };
-    if let Some(did) = real_target.def_id() {
-        render_assoc_items(w, cx, container_item, did, what)
-    } else {
-        if let Some(prim) = real_target.primitive_type() {
-            if let Some(&did) = cx.cache.primitive_locations.get(&prim) {
-                render_assoc_items(w, cx, container_item, did, what);
-            }
-        }
+    if let Some(did) = did {
+        render_assoc_items(w, cx, container_item, did, &what);
+    }
+    if let Some(did) = real_target.and_then(|x| get_def_id(x, cx)) {
+        render_assoc_items(w, cx, container_item, did, &what);
     }
 }
 
@@ -3873,7 +3884,7 @@ fn item_opaque_ty(w: &mut Buffer, cx: &Context, it: &clean::Item, t: &clean::Opa
     // won't be visible anywhere in the docs. It would be nice to also show
     // associated items from the aliased type (see discussion in #32077), but
     // we need #14072 to make sense of the generics.
-    render_assoc_items(w, cx, it, it.def_id, AssocItemRender::All)
+    render_assoc_items(w, cx, it, it.def_id, &AssocItemRender::All)
 }
 
 fn item_trait_alias(w: &mut Buffer, cx: &Context, it: &clean::Item, t: &clean::TraitAlias) {
@@ -3894,7 +3905,7 @@ fn item_trait_alias(w: &mut Buffer, cx: &Context, it: &clean::Item, t: &clean::T
     // won't be visible anywhere in the docs. It would be nice to also show
     // associated items from the aliased type (see discussion in #32077), but
     // we need #14072 to make sense of the generics.
-    render_assoc_items(w, cx, it, it.def_id, AssocItemRender::All)
+    render_assoc_items(w, cx, it, it.def_id, &AssocItemRender::All)
 }
 
 fn item_typedef(w: &mut Buffer, cx: &Context, it: &clean::Item, t: &clean::Typedef) {
@@ -3915,7 +3926,7 @@ fn item_typedef(w: &mut Buffer, cx: &Context, it: &clean::Item, t: &clean::Typed
     // won't be visible anywhere in the docs. It would be nice to also show
     // associated items from the aliased type (see discussion in #32077), but
     // we need #14072 to make sense of the generics.
-    render_assoc_items(w, cx, it, it.def_id, AssocItemRender::All)
+    render_assoc_items(w, cx, it, it.def_id, &AssocItemRender::All)
 }
 
 fn item_foreign_type(w: &mut Buffer, cx: &Context, it: &clean::Item) {
@@ -3930,7 +3941,7 @@ fn item_foreign_type(w: &mut Buffer, cx: &Context, it: &clean::Item) {
 
     document(w, cx, it);
 
-    render_assoc_items(w, cx, it, it.def_id, AssocItemRender::All)
+    render_assoc_items(w, cx, it, it.def_id, &AssocItemRender::All)
 }
 
 fn print_sidebar(cx: &Context, it: &clean::Item, buffer: &mut Buffer) {
@@ -4602,7 +4613,7 @@ fn item_proc_macro(w: &mut Buffer, cx: &Context, it: &clean::Item, m: &clean::Pr
 
 fn item_primitive(w: &mut Buffer, cx: &Context, it: &clean::Item) {
     document(w, cx, it);
-    render_assoc_items(w, cx, it, it.def_id, AssocItemRender::All)
+    render_assoc_items(w, cx, it, it.def_id, &AssocItemRender::All)
 }
 
 fn item_keyword(w: &mut Buffer, cx: &Context, it: &clean::Item) {