b6bef6b688
Produce JS-visible string results as UTF-16 at their source, including numeric formatting, BigInt and BigFraction formatting, URI encoding, console formatting, parser errors, regular expression errors, Intl and Temporal records, LibUnicode locale boundaries, and LibWeb bindings. Handle fractional radix formatting through the UTF-16 builder view.
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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Utf16String BigInt::to_utf16_string() const
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{
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return Utf16String::formatted("{}n", MUST(m_big_integer.to_base_utf16(10)));
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}
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size_t BigInt::external_memory_size() const
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{
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return m_big_integer.external_memory_size();
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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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