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49 lines
1.3 KiB
C++
49 lines
1.3 KiB
C++
/*
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* Copyright (c) 2020-2022, Linus Groh <linusg@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibCrypto/BigInt/SignedBigInteger.h>
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#include <LibGC/Heap.h>
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#include <LibJS/Runtime/BigInt.h>
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#include <LibJS/Runtime/GlobalObject.h>
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namespace JS {
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GC_DEFINE_ALLOCATOR(BigInt);
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GC::Ref<BigInt> BigInt::create(VM& vm, Crypto::SignedBigInteger big_integer)
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{
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return vm.heap().allocate<BigInt>(move(big_integer));
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}
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BigInt::BigInt(Crypto::SignedBigInteger big_integer)
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: m_big_integer(move(big_integer))
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{
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}
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ErrorOr<String> BigInt::to_string() const
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{
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return String::formatted("{}n", TRY(m_big_integer.to_base(10)));
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}
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Utf16String BigInt::to_utf16_string() const
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{
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return Utf16String::formatted("{}n", MUST(m_big_integer.to_base(10)));
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}
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// 21.2.1.1.1 NumberToBigInt ( number ), https://tc39.es/ecma262/#sec-numbertobigint
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ThrowCompletionOr<GC::Ref<BigInt>> number_to_bigint(VM& vm, Value number)
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{
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VERIFY(number.is_number());
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// 1. If IsIntegralNumber(number) is false, throw a RangeError exception.
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if (!number.is_integral_number())
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return vm.throw_completion<RangeError>(ErrorType::BigIntFromNonIntegral);
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// 2. Return the BigInt value that represents ℝ(number).
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return BigInt::create(vm, Crypto::SignedBigInteger { number.as_double() });
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}
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}
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