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AK+Everywhere: Remove the null state of DeprecatedString

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This commit removes DeprecatedString's "null" state, and replaces all
its users with one of the following:
- A normal, empty DeprecatedString
- Optional<DeprecatedString>

Note that null states of DeprecatedFlyString/StringView/etc are *not*
affected by this commit. However, DeprecatedString::empty() is now
considered equal to a null StringView.
This commit is contained in:
Ali Mohammad Pur 2023-10-10 15:00:58 +03:30 • committed by Ali Mohammad Pur
parent daf6d8173c
commit aeee98b3a1
189 changed files with 597 additions and 652 deletions
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6
Userland/Libraries/LibWeb/DOM/Element.h
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@ -153,11 +153,11 @@ public:
virtual void apply_presentational_hints(CSS::StyleProperties&) const { }
// https://dom.spec.whatwg.org/#concept-element-attributes-change-ext
using AttributeChangeSteps = Function<void(FlyString const& /*local_name*/, DeprecatedString const& /*old_value*/, DeprecatedString const& /*value*/, DeprecatedFlyString const& /*namespace_*/)>;
using AttributeChangeSteps = Function<void(FlyString const& /*local_name*/, Optional<DeprecatedString> const& /*old_value*/, Optional<DeprecatedString> const& /*value*/, DeprecatedFlyString const& /*namespace_*/)>;
void add_attribute_change_steps(AttributeChangeSteps steps);
void run_attribute_change_steps(FlyString const& local_name, DeprecatedString const& old_value, DeprecatedString const& value, DeprecatedFlyString const& namespace_);
virtual void attribute_changed(FlyString const& name, DeprecatedString const& value);
void run_attribute_change_steps(FlyString const& local_name, Optional<DeprecatedString> const& old_value, Optional<DeprecatedString> const& value, DeprecatedFlyString const& namespace_);
virtual void attribute_changed(FlyString const& name, Optional<DeprecatedString> const& value);
struct [[nodiscard]] RequiredInvalidationAfterStyleChange {
bool repaint { false };