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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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19
Libraries/LibJS/Runtime/Intl/ListFormat.cpp
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@ -4,11 +4,10 @@
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/StringBuilder.h>
#include <LibJS/Runtime/Array.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/Intl/ListFormat.h>
#include <LibJS/Runtime/Iterator.h>
#include <LibJS/Runtime/VM.h>
#include <LibUnicode/ListFormat.h>
namespace JS::Intl {
@ -17,10 +16,24 @@ GC_DEFINE_ALLOCATOR(ListFormat);
// 14 ListFormat Objects, https://tc39.es/ecma402/#listformat-objects
ListFormat::ListFormat(Object& prototype)
: Object(ConstructWithPrototypeTag::Tag, prototype)
: IntlObject(ConstructWithPrototypeTag::Tag, prototype)
{
}
// 14.2.3 Internal slots, https://tc39.es/ecma402/#sec-Intl.ListFormat-internal-slots
ReadonlySpan<StringView> ListFormat::relevant_extension_keys() const
{
// The value of the [[RelevantExtensionKeys]] internal slot is « ».
return {};
}
// 14.2.3 Internal slots, https://tc39.es/ecma402/#sec-Intl.ListFormat-internal-slots
ReadonlySpan<ResolutionOptionDescriptor> ListFormat::resolution_option_descriptors(VM&) const
{
// The value of the [[ResolutionOptionDescriptors]] internal slot is « ».
return {};
}
// 14.5.2 CreatePartsFromList ( listFormat, list ), https://tc39.es/ecma402/#sec-createpartsfromlist
Vector<Unicode::ListFormat::Partition> create_parts_from_list(ListFormat const& list_format, ReadonlySpan<String> list)
{