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3b68bb6e73
The IntlMV is meant to be arbitrarily precise. If the user provides a string value to be formatted, we lose precision by converting extremely large values to a double. We were never able to address this, as support for arbitrary precision was a big FIXME. But ICU can handle it by just passing the raw string on through.
74 lines
1.6 KiB
C++
74 lines
1.6 KiB
C++
/*
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* Copyright (c) 2022-2024, Tim Flynn <trflynn89@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 <AK/String.h>
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#include <AK/Variant.h>
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#include <LibCrypto/BigInt/SignedBigInteger.h>
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#include <LibJS/Runtime/BigInt.h>
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#include <LibJS/Runtime/Value.h>
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#include <LibLocale/NumberFormat.h>
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namespace JS::Intl {
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// https://tc39.es/ecma402/#intl-mathematical-value
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class MathematicalValue {
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public:
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enum class Symbol {
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PositiveInfinity,
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NegativeInfinity,
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NegativeZero,
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NotANumber,
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};
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MathematicalValue() = default;
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explicit MathematicalValue(double value)
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: m_value(value_from_number(value))
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{
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}
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explicit MathematicalValue(String value)
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: m_value(move(value))
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{
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}
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explicit MathematicalValue(Symbol symbol)
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: m_value(symbol)
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{
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}
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MathematicalValue(Value value)
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: m_value(value.is_number()
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? value_from_number(value.as_double())
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: ValueType(MUST(value.as_bigint().big_integer().to_base(10))))
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{
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}
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bool is_number() const;
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double as_number() const;
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bool is_string() const;
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String const& as_string() const;
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bool is_mathematical_value() const;
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bool is_positive_infinity() const;
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bool is_negative_infinity() const;
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bool is_negative_zero() const;
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bool is_nan() const;
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::Locale::NumberFormat::Value to_value() const;
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private:
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using ValueType = Variant<double, String, Symbol>;
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static ValueType value_from_number(double number);
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ValueType m_value { 0.0 };
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};
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}
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