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AK+Everywhere: Remove the null state of DeprecatedString
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.
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189 changed files with 597 additions and 652 deletions
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@ -153,11 +153,11 @@ public:
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virtual void apply_presentational_hints(CSS::StyleProperties&) const { }
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// https://dom.spec.whatwg.org/#concept-element-attributes-change-ext
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using AttributeChangeSteps = Function<void(FlyString const& /*local_name*/, DeprecatedString const& /*old_value*/, DeprecatedString const& /*value*/, DeprecatedFlyString const& /*namespace_*/)>;
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using AttributeChangeSteps = Function<void(FlyString const& /*local_name*/, Optional<DeprecatedString> const& /*old_value*/, Optional<DeprecatedString> const& /*value*/, DeprecatedFlyString const& /*namespace_*/)>;
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void add_attribute_change_steps(AttributeChangeSteps steps);
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void run_attribute_change_steps(FlyString const& local_name, DeprecatedString const& old_value, DeprecatedString const& value, DeprecatedFlyString const& namespace_);
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virtual void attribute_changed(FlyString const& name, DeprecatedString const& value);
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void run_attribute_change_steps(FlyString const& local_name, Optional<DeprecatedString> const& old_value, Optional<DeprecatedString> const& value, DeprecatedFlyString const& namespace_);
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virtual void attribute_changed(FlyString const& name, Optional<DeprecatedString> const& value);
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struct [[nodiscard]] RequiredInvalidationAfterStyleChange {
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bool repaint { false };
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