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LibJS: Define constructor slots for describing how to read options

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This is an editorial change in the ECMA-402 spec. See:
a2beb66

We implement this change by introducing a virtual interface that all
Intl "service" objects must implement. A future patch will make use of
the virtualized RelevantExtensionKeys and ResolutionOptionDescriptors
accessors, and we will need to be able to use those slots from a generic
instance type.
This commit is contained in:
Timothy Flynn 2025-04-07 15:56:31 -04:00 • committed by Tim Flynn
commit 62793b1bd8
Notes: github-actions[bot] 2025-04-08 10:53:24 +00:00
29 changed files with 284 additions and 116 deletions
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14
Libraries/LibJS/Runtime/Intl/PluralRules.cpp
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@ -17,6 +17,20 @@ PluralRules::PluralRules(Object& prototype)
{
}
// 17.2.3 Internal slots, https://tc39.es/ecma402/#sec-intl.pluralrules-internal-slots
ReadonlySpan<StringView> PluralRules::relevant_extension_keys() const
{
// The value of the [[RelevantExtensionKeys]] internal slot is « ».
return {};
}
// 17.2.3 Internal slots, https://tc39.es/ecma402/#sec-intl.pluralrules-internal-slots
ReadonlySpan<ResolutionOptionDescriptor> PluralRules::resolution_option_descriptors(VM&) const
{
// The value of the [[ResolutionOptionDescriptors]] internal slot is « ».
return {};
}
// 17.5.2 ResolvePlural ( pluralRules, n ), https://tc39.es/ecma402/#sec-resolveplural
Unicode::PluralCategory resolve_plural(PluralRules const& plural_rules, Value number)
{