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LibWeb: Implement indexed property support for HTML::Storage

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We only supported named properties on Storage, and as a result
`localStorage[0]` would be disconnected from the Storage's backing map.

Fixes at least 20 subtests in WPT in /webstorage.
This commit is contained in:
Jelle Raaijmakers 2024-10-18 00:04:35 +02:00
commit 4c189166f4
Notes: github-actions[bot] 2024-10-18 21:11:13 +00:00
4 changed files with 42 additions and 0 deletions
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17
Userland/Libraries/LibWeb/HTML/Storage.cpp
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@ -23,10 +23,13 @@ Storage::Storage(JS::Realm& realm)
: Bindings::PlatformObject(realm)
{
m_legacy_platform_object_flags = LegacyPlatformObjectFlags {
.supports_indexed_properties = true,
.supports_named_properties = true,
.has_indexed_property_setter = true,
.has_named_property_setter = true,
.has_named_property_deleter = true,
.has_legacy_override_built_ins_interface_extended_attribute = true,
.indexed_property_setter_has_identifier = true,
.named_property_setter_has_identifier = true,
.named_property_deleter_has_identifier = true,
};
@ -168,6 +171,13 @@ Vector<FlyString> Storage::supported_property_names() const
return names;
}
Optional<JS::Value> Storage::item_value(size_t index) const
{
// Handle index as a string since that's our key type
auto key = String::number(index);
return named_item_value(key);
}
JS::Value Storage::named_item_value(FlyString const& name) const
{
auto value = get_item(name);
@ -182,6 +192,13 @@ WebIDL::ExceptionOr<Bindings::PlatformObject::DidDeletionFail> Storage::delete_v
return DidDeletionFail::NotRelevant;
}
WebIDL::ExceptionOr<void> Storage::set_value_of_indexed_property(u32 index, JS::Value unconverted_value)
{
// Handle index as a string since that's our key type
auto key = String::number(index);
return set_value_of_named_property(key, unconverted_value);
}
WebIDL::ExceptionOr<void> Storage::set_value_of_named_property(String const& key, JS::Value unconverted_value)
{
// NOTE: Since PlatformObject does not know the type of value, we must convert it ourselves.