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LibJS: Add an initial implementation of Collator Compare Functions

This commit adds an initial implementation (without any real locale
support) of Collator Compare Functions, as well as the matching
CompareStrings AO. These two are used to implement the ECMA402 version
of String.localeCompare() and Int.Collator.compare().
This commit is contained in:
Idan Horowitz 2022-02-20 19:53:50 +02:00 committed by Tim Flynn
parent 7feeb2df0d
commit 0bdb293262
3 changed files with 109 additions and 0 deletions

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/*
* Copyright (c) 2022, Idan Horowitz <idan.horowitz@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibJS/Runtime/NativeFunction.h>
namespace JS::Intl {
class CollatorCompareFunction : public NativeFunction {
JS_OBJECT(CollatorCompareFunction, NativeFunction);
public:
static CollatorCompareFunction* create(GlobalObject&, Collator&);
explicit CollatorCompareFunction(GlobalObject&, Collator&);
virtual void initialize(GlobalObject&) override;
virtual ~CollatorCompareFunction() override = default;
virtual ThrowCompletionOr<Value> call() override;
private:
virtual void visit_edges(Visitor&) override;
Collator& m_collator; // [[Collator]]
};
double compare_strings(Collator&, Utf8View const& x, Utf8View const& y);
}