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AK: Don't implicitly convert Optional<T&> to Optional<T>

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C++ will jovially select the implicit conversion operator, even if it's
complete bogus, such as for unknown-size types or non-destructible
types. Therefore, all such conversions (which incur a copy) must
(unfortunately) be explicit so that non-copyable types continue to work.

NOTE: We make an exception for trivially copyable types, since they
are, well, trivially copyable.

Co-authored-by: kleines Filmröllchen <filmroellchen@serenityos.org>
This commit is contained in:
Jonne Ransijn 2024-11-25 13:23:31 +01:00 • committed by Ali Mohammad Pur
parent 8468fb9ae5
commit d7596a0a61
Notes: github-actions[bot] 2024-12-04 00:59:23 +00:00
22 changed files with 118 additions and 40 deletions
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4
Libraries/LibWeb/CSS/CSSStyleDeclaration.h
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@ -29,7 +29,7 @@ public:
virtual String item(size_t index) const = 0;
virtual Optional<StyleProperty> property(PropertyID) const = 0;
virtual Optional<StyleProperty> custom_property(FlyString const& custom_property_name) const = 0;
virtual Optional<StyleProperty const&> custom_property(FlyString const& custom_property_name) const = 0;
virtual WebIDL::ExceptionOr<void> set_property(PropertyID, StringView css_text, StringView priority = ""sv);
virtual WebIDL::ExceptionOr<String> remove_property(PropertyID);
@ -76,7 +76,7 @@ public:
virtual String item(size_t index) const override;
virtual Optional<StyleProperty> property(PropertyID) const override;
virtual Optional<StyleProperty> custom_property(FlyString const& custom_property_name) const override { return m_custom_properties.get(custom_property_name); }
virtual Optional<StyleProperty const&> custom_property(FlyString const& custom_property_name) const override { return m_custom_properties.get(custom_property_name); }
virtual WebIDL::ExceptionOr<void> set_property(StringView property_name, StringView css_text, StringView priority) override;
virtual WebIDL::ExceptionOr<String> remove_property(StringView property_name) override;