LibWeb: Return NonnullGCPtr<DOMTokenList> from relList getters

Author: https://github.com/tcl3
Commit: fc395716e9
Pull-request: https://github.com/SerenityOS/serenity/pull/24353

Userland/Libraries/LibWeb/HTML/HTMLAnchorElement.cpp

@@ -128,12 +128,12 @@ Optional<ARIA::Role> HTMLAnchorElement::default_role() const
 }
 
 // https://html.spec.whatwg.org/multipage/text-level-semantics.html#dom-a-rellist
-JS::GCPtr<DOM::DOMTokenList> HTMLAnchorElement::rel_list()
+JS::NonnullGCPtr<DOM::DOMTokenList> HTMLAnchorElement::rel_list()
 {
     // The IDL attribute relList must reflect the rel content attribute.
     if (!m_rel_list)
         m_rel_list = DOM::DOMTokenList::create(*this, HTML::AttributeNames::rel);
-    return m_rel_list;
+    return *m_rel_list;
 }
 
 // https://html.spec.whatwg.org/multipage/text-level-semantics.html#dom-a-text

Userland/Libraries/LibWeb/HTML/HTMLAnchorElement.h

@@ -24,7 +24,7 @@ public:
     String target() const { return get_attribute_value(HTML::AttributeNames::target); }
     String download() const { return get_attribute_value(HTML::AttributeNames::download); }
 
-    JS::GCPtr<DOM::DOMTokenList> rel_list();
+    JS::NonnullGCPtr<DOM::DOMTokenList> rel_list();
 
     String text() const;
     void set_text(String const&);

Userland/Libraries/LibWeb/HTML/HTMLAreaElement.cpp

@@ -39,12 +39,12 @@ void HTMLAreaElement::attribute_changed(FlyString const& name, Optional<String>
 }
 
 // https://html.spec.whatwg.org/multipage/image-maps.html#dom-area-rellist
-JS::GCPtr<DOM::DOMTokenList> HTMLAreaElement::rel_list()
+JS::NonnullGCPtr<DOM::DOMTokenList> HTMLAreaElement::rel_list()
 {
     // The IDL attribute relList must reflect the rel content attribute.
     if (!m_rel_list)
         m_rel_list = DOM::DOMTokenList::create(*this, HTML::AttributeNames::rel);
-    return m_rel_list;
+    return *m_rel_list;
 }
 
 Optional<String> HTMLAreaElement::hyperlink_element_utils_href() const

Userland/Libraries/LibWeb/HTML/HTMLAreaElement.h

@@ -20,7 +20,7 @@ class HTMLAreaElement final
 
 public:
     virtual ~HTMLAreaElement() override;
-    JS::GCPtr<DOM::DOMTokenList> rel_list();
+    JS::NonnullGCPtr<DOM::DOMTokenList> rel_list();
 
 private:
     HTMLAreaElement(DOM::Document&, DOM::QualifiedName);

Userland/Libraries/LibWeb/HTML/HTMLFormElement.cpp

@@ -586,12 +586,12 @@ StringView HTMLFormElement::method() const
 }
 
 // https://html.spec.whatwg.org/multipage/forms.html#dom-form-rellist
-JS::GCPtr<DOM::DOMTokenList> HTMLFormElement::rel_list()
+JS::NonnullGCPtr<DOM::DOMTokenList> HTMLFormElement::rel_list()
 {
     // The relList IDL attribute must reflect the rel content attribute.
     if (!m_rel_list)
         m_rel_list = DOM::DOMTokenList::create(*this, HTML::AttributeNames::rel);
-    return m_rel_list;
+    return *m_rel_list;
 }
 
 // https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-fs-method

Userland/Libraries/LibWeb/HTML/HTMLFormElement.h

@@ -92,7 +92,7 @@ public:
     StringView method() const;
     WebIDL::ExceptionOr<void> set_method(String const&);
 
-    JS::GCPtr<DOM::DOMTokenList> rel_list();
+    JS::NonnullGCPtr<DOM::DOMTokenList> rel_list();
 
     String action() const;
     WebIDL::ExceptionOr<void> set_action(String const&);

Userland/Libraries/LibWeb/HTML/HTMLLinkElement.cpp

@@ -91,12 +91,12 @@ void HTMLLinkElement::inserted()
 }
 
 // https://html.spec.whatwg.org/multipage/semantics.html#dom-link-rellist
-JS::GCPtr<DOM::DOMTokenList> HTMLLinkElement::rel_list()
+JS::NonnullGCPtr<DOM::DOMTokenList> HTMLLinkElement::rel_list()
 {
     // The relList IDL attribute must reflect the rel content attribute.
     if (!m_rel_list)
         m_rel_list = DOM::DOMTokenList::create(*this, HTML::AttributeNames::rel);
-    return m_rel_list;
+    return *m_rel_list;
 }
 
 bool HTMLLinkElement::has_loaded_icon() const

Userland/Libraries/LibWeb/HTML/HTMLLinkElement.h

@@ -34,7 +34,7 @@ public:
     String type() const { return get_attribute_value(HTML::AttributeNames::type); }
     String href() const { return get_attribute_value(HTML::AttributeNames::href); }
 
-    JS::GCPtr<DOM::DOMTokenList> rel_list();
+    JS::NonnullGCPtr<DOM::DOMTokenList> rel_list();
 
     bool has_loaded_icon() const;
     bool load_favicon_and_use_if_window_is_active();