Rollup merge of #127418 - GuillaumeGomez:wrap-too-long-type-name, r=n…

…otriddle

Wrap too long type name

Fixes #120595.

Takeover of #126209.

cc `@BradMarr`
r? `@notriddle`

src/librustdoc/html/static/css/rustdoc.css

@@ -2174,6 +2174,14 @@ in src-script.js and main.js
  padding: 2px 4px;
  box-shadow: 0 0 4px var(--main-background-color);
  }
+
+ .item-table > li > .item-name {
+ width: 33%;
+ }
+ .item-table > li > div {
+ padding-bottom: 5px;
+ word-break: break-all;
+ }
 }
 
 @media print {

tests/rustdoc-gui/src/lib2/lib.rs

@@ -117,6 +117,7 @@ pub mod too_long {
  pub type ReallyLongTypeNameLongLongLong =
  Option<unsafe extern "C" fn(a: *const u8, b: *const u8) -> *const u8>;
 
+ /// Short doc.
  pub const ReallyLongTypeNameLongLongLongConstBecauseWhyNotAConstRightGigaGigaSupraLong: u32 = 0;
 
  /// This also has a really long doccomment. Lorem ipsum dolor sit amet,

tests/rustdoc-gui/type-declation-overflow.goml

@@ -16,7 +16,11 @@ assert-property: ("pre.item-decl", {"scrollWidth": "1324"})
 
 // In the table-ish view on the module index, the name should not be wrapped more than necessary.
 go-to: "file://" + |DOC_PATH| + "/lib2/too_long/index.html"
-assert-property: (".item-table .struct", {"offsetWidth": "684"})
+
+// We'll ensure that items with short documentation have the same width.
+store-property: ("//*[@class='item-table']//*[@class='struct']/..", {"offsetWidth": offset_width})
+assert: |offset_width| == "277"
+assert-property: ("//*[@class='item-table']//*[@class='constant']/..", {"offsetWidth": |offset_width|})
 
 // We now make the same check on type declaration...
 go-to: "file://" + |DOC_PATH| + "/lib2/too_long/type.ReallyLongTypeNameLongLongLong.html"