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LibWeb/CSS: Implement CSSNumericType.equals()

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This commit is contained in:
Sam Atkins
2025-08-22 12:53:15 +01:00
committed by Andreas Kling
parent d29084997e
commit 7be645a091
Notes: github-actions[bot] 2025-08-29 09:58:23 +00:00 
Author: https://github.com/AtkinsSJ
Commit: https://github.com/LadybirdBrowser/ladybird/commit/7be645a0913
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/5955
Reviewed-by: https://github.com/trflynn89
22 changed files with 181 additions and 16 deletions
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15
Libraries/LibWeb/CSS/CSSUnitValue.cpp
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@@ -95,4 +95,19 @@ String CSSUnitValue::serialize_unit_value(Optional<double> minimum, Optional<dou
return s.to_string_without_validation();
}
// https://drafts.css-houdini.org/css-typed-om-1/#equal-numeric-value
bool CSSUnitValue::is_equal_numeric_value(GC::Ref<CSSNumericValue> other) const
{
// NB: Only steps 1 and 2 are relevant.
// 1. If value1 and value2 are not members of the same interface, return false.
auto* other_unit_value = as_if<CSSUnitValue>(*other);
if (!other_unit_value)
return false;
// 2. If value1 and value2 are both CSSUnitValues, return true if they have equal unit and value internal slots,
// or false otherwise.
return m_unit == other_unit_value->m_unit
&& m_value == other_unit_value->m_value;
}
}