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103 lines
2.6 KiB
C++
103 lines
2.6 KiB
C++
/*
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* Copyright (c) 2022, 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/Checked.h>
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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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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(Crypto::SignedBigInteger 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(value.as_bigint().big_integer()))
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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_bigint() const;
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Crypto::SignedBigInteger const& as_bigint() 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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void negate();
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MathematicalValue plus(Checked<i32> addition) const;
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MathematicalValue plus(MathematicalValue const& addition) const;
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MathematicalValue minus(Checked<i32> subtraction) const;
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MathematicalValue minus(MathematicalValue const& subtraction) const;
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MathematicalValue multiplied_by(Checked<i32> multiplier) const;
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MathematicalValue multiplied_by(MathematicalValue const& multiplier) const;
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MathematicalValue divided_by(Checked<i32> divisor) const;
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MathematicalValue divided_by(MathematicalValue const& divisor) const;
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MathematicalValue multiplied_by_power(Checked<i32> exponent) const;
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MathematicalValue divided_by_power(Checked<i32> exponent) const;
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bool modulo_is_zero(Checked<i32> mod) const;
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int logarithmic_floor() const;
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bool is_equal_to(MathematicalValue const&) const;
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bool is_less_than(MathematicalValue const&) const;
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bool is_negative() const;
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bool is_positive() const;
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bool is_zero() const;
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String to_string() const;
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Value to_value(VM&) const;
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private:
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using ValueType = Variant<double, Crypto::SignedBigInteger, 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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