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rustdoc: Show type layout for type aliases #91682

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Dec 11, 2021
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rustdoc: Show type layout for type aliases #91682

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1 change: 1 addition & 0 deletions src/librustdoc/html/render/print_item.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -976,6 +976,7 @@ fn item_typedef(
// 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, def_id, AssocItemRender::All);
document_type_layout(w, cx, def_id);
}

fn item_union(w: &mut Buffer, cx: &Context<'_>, it: &clean::Item, s: &clean::Union) {
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12 changes: 12 additions & 0 deletions src/test/rustdoc/type-layout.rs
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Expand Up @@ -50,6 +50,18 @@ pub struct GenericLifetimes<'a>(&'a str);
// @has - '(unsized)'
pub struct Unsized([u8]);

// @has type_layout/type.TypeAlias.html 'Size: '
// @has - ' bytes'
pub type TypeAlias = X;

// @has type_layout/type.GenericTypeAlias.html 'Size: '
// @has - '8 bytes'
pub type GenericTypeAlias = (Generic<(u32, ())>, Generic<u32>);

// Regression test for the rustdoc equivalent of #85103.
// @has type_layout/type.Edges.html 'Encountered an error during type layout; the type failed to be normalized.'
pub type Edges<'a, E> = std::borrow::Cow<'a, [E]>;

// @!has type_layout/trait.MyTrait.html 'Size: '
pub trait MyTrait {}

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