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LibWeb: Turn StyleProperties::m_property_values into an Array

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After style computation, every StyleProperties has a value for every
PropertyID. Given this, it's simpler, faster and less memory-heavy to
use an Array instead of a HashMap. :^)
This commit is contained in:
Andreas Kling 2022-02-18 20:21:49 +01:00
parent eca8208a34
commit 141b01d3e3
3 changed files with 35 additions and 28 deletions
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24
Userland/Libraries/LibWeb/CSS/StyleProperties.cpp
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@ -36,15 +36,15 @@ NonnullRefPtr<StyleProperties> StyleProperties::clone() const
void StyleProperties::set_property(CSS::PropertyID id, NonnullRefPtr<StyleValue> value)
{
m_property_values.set(id, move(value));
m_property_values[to_underlying(id)] = move(value);
}
Optional<NonnullRefPtr<StyleValue>> StyleProperties::property(CSS::PropertyID property_id) const
{
auto it = m_property_values.find(property_id);
if (it == m_property_values.end())
auto value = m_property_values[to_underlying(property_id)];
if (!value)
return {};
return it->value;
return value.release_nonnull();
}
Length StyleProperties::length_or_fallback(CSS::PropertyID id, Length const& fallback) const
@ -390,12 +390,18 @@ bool StyleProperties::operator==(const StyleProperties& other) const
if (m_property_values.size() != other.m_property_values.size())
return false;
for (auto& it : m_property_values) {
auto jt = other.m_property_values.find(it.key);
if (jt == other.m_property_values.end())
for (size_t i = 0; i < m_property_values.size(); ++i) {
auto const& my_ptr = m_property_values[i];
auto const& other_ptr = m_property_values[i];
if (!my_ptr) {
if (other_ptr)
return false;
continue;
}
if (!other_ptr)
return false;
auto& my_value = *it.value;
auto& other_value = *jt->value;
auto const& my_value = *my_ptr;
auto const& other_value = *other_ptr;
if (my_value.type() != other_value.type())
return false;
if (my_value != other_value)