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Fix type decl layout "overflow" #87162

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Jul 16, 2021
Merged

Fix type decl layout "overflow" #87162

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59103d1
Fix layout overflow in type declaration
GuillaumeGomez Jul 15, 2021
25e7403
Add regression test for type declaration layout overflow
GuillaumeGomez Jul 15, 2021
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3 changes: 3 additions & 0 deletions src/librustdoc/html/static/css/rustdoc.css
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Original file line number Diff line number Diff line change
Expand Up @@ -247,6 +247,9 @@ code, pre, a.test-arrow {
pre {
padding: 14px;
}
.type-decl pre {
overflow-x: auto;
}

.source .content pre {
padding: 20px;
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7 changes: 7 additions & 0 deletions src/test/rustdoc-gui/src/lib2/lib.rs
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Expand Up @@ -47,3 +47,10 @@ pub mod sub_mod {
/// ```
pub struct Foo;
}

pub mod long_trait {
use std::ops::DerefMut;

pub trait ALongNameBecauseItHelpsTestingTheCurrentProblem: DerefMut<Target = u32>
+ From<u128> + Send + Sync + AsRef<str> + 'static {}
}
8 changes: 8 additions & 0 deletions src/test/rustdoc-gui/type-declation-overflow.goml
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@@ -0,0 +1,8 @@
// This test ensures that the type declaration content overflow is handled inside the <pre> directly.
goto: file://|DOC_PATH|/lib2/long_trait/trait.ALongNameBecauseItHelpsTestingTheCurrentProblem.html
// We set a fixed size so there is no chance of "random" resize.
size: (1100, 800)
// Logically, the <body> scroll width should be the width of the window.
assert-property: ("body", {"scrollWidth": "1100"})
// However, since there is overflow in the type declaration, its scroll width is bigger.
assert-property: (".type-decl pre", {"scrollWidth": "1324"})