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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:
https://github.com/tc39/ecma402/commit/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
parent 19ce186f97
commit 62793b1bd8
Notes: github-actions[bot] 2025-04-08 10:53:24 +00:00 
Author: https://github.com/trflynn89
Commit: https://github.com/LadybirdBrowser/ladybird/commit/62793b1bd88
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/4275
29 changed files with 284 additions and 116 deletions
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36
Libraries/LibJS/Runtime/Intl/IntlObject.h Normal file
View File

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/*
* Copyright (c) 2025, Tim Flynn <trflynn89@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Span.h>
#include <AK/StringView.h>
#include <LibJS/Runtime/AbstractOperations.h>
#include <LibJS/Runtime/Object.h>
#include <LibJS/Runtime/PropertyKey.h>
namespace JS::Intl {
// https://tc39.es/ecma402/#resolution-option-descriptor
struct ResolutionOptionDescriptor {
StringView key;
PropertyKey property;
OptionType type { OptionType::String };
ReadonlySpan<StringView> values {};
};
class IntlObject : public Object {
JS_OBJECT(IntlObject, Object);
public:
virtual ReadonlySpan<StringView> relevant_extension_keys() const = 0;
virtual ReadonlySpan<ResolutionOptionDescriptor> resolution_option_descriptors(VM&) const = 0;
protected:
using Object::Object;
};
}