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LibWeb: Correct logic for removing end nodes from HTMLOptionsCollection

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This test case would previously crash.

Found with domato.
This commit is contained in:
Sam Atkins
2024-07-27 13:33:51 +01:00
committed by Tim Ledbetter
parent f61e54b10c
commit 0cec68ea99
3 changed files with 17 additions and 2 deletions
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4
Userland/Libraries/LibWeb/HTML/HTMLOptionsCollection.cpp
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@@ -66,8 +66,8 @@ WebIDL::ExceptionOr<void> HTMLOptionsCollection::set_length(WebIDL::UnsignedLong
auto n = current - value;
// 3.2. Remove the last n nodes in the collection from their parent nodes.
for (WebIDL::UnsignedLong i = current - 1; i >= current - n; i--)
this->item(i)->remove();
for (auto i = 0u; i < n; i++)
item(length() - 1)->remove();
}
return {};