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LibJS: Skip trailing empty values in IndexedPropertyIterator

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When we reach the end of the pre-computed indices vector we can just
skip to the end (array-like size) as only empty values will follow.

Fixes #3970.
This commit is contained in:
Linus Groh 2020-11-07 00:18:57 +00:00 • committed by Andreas Kling
parent d5bb5d109b
commit 021c8dea1f
Notes: sideshowbarker 2024-07-19 01:32:27 +09:00
1 changed files with 2 additions and 5 deletions
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7
Libraries/LibJS/Runtime/IndexedProperties.cpp
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@ -264,16 +264,13 @@ ValueAndAttributes IndexedPropertyIterator::value_and_attributes(Object* this_ob
void IndexedPropertyIterator::skip_empty_indices()
{
auto indices = m_indexed_properties.indices();
if (indices.is_empty()) {
m_index = m_indexed_properties.array_like_size();
return;
}
for (auto i : indices) {
if (i < m_index)
continue;
m_index = i;
break;
return;
}
m_index = m_indexed_properties.array_like_size();
}
Optional<ValueAndAttributes> IndexedProperties::get(Object* this_object, u32 index, bool evaluate_accessors) const