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LibWeb/CSS: Give all style values a visit_edges() method

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Having this hidden away in ImageStyleValue meant that
CSSStyleProperties (and anyone else who holds style values) had to know
exactly which types need visiting. This is a footgun waiting to happen,
so make this a virtual method on CSSStyleValue instead.
This commit is contained in:
Sam Atkins 2025-03-26 14:40:23 +00:00
commit a2c89f585f
Notes: github-actions[bot] 2025-03-27 11:54:20 +00:00
4 changed files with 9 additions and 3 deletions
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1
Libraries/LibWeb/CSS/StyleValues/ImageStyleValue.cpp
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@ -30,6 +30,7 @@ ImageStyleValue::~ImageStyleValue() = default;
void ImageStyleValue::visit_edges(JS::Cell::Visitor& visitor) const
{
Base::visit_edges(visitor);
// FIXME: visit_edges in non-GC allocated classes is confusing pattern.
// Consider making CSSStyleValue to be GC allocated instead.
visitor.visit(m_resource_request);

5
Libraries/LibWeb/CSS/StyleValues/ImageStyleValue.h
View file

@ -21,6 +21,9 @@ namespace Web::CSS {
class ImageStyleValue final
: public AbstractImageStyleValue
, public Weakable<ImageStyleValue> {
using Base = AbstractImageStyleValue;
public:
static ValueComparingNonnullRefPtr<ImageStyleValue> create(URL::URL const& url)
{
@ -28,7 +31,7 @@ public:
}
virtual ~ImageStyleValue() override;
void visit_edges(JS::Cell::Visitor& visitor) const;
virtual void visit_edges(JS::Cell::Visitor& visitor) const override;
virtual String to_string(SerializationMode) const override;
virtual bool equals(CSSStyleValue const& other) const override;