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