ladybird/Libraries/LibJS/Runtime/BigInt.cpp
Shannon Booth f87041bf3a LibGC+Everywhere: Factor out a LibGC from LibJS
Resulting in a massive rename across almost everywhere! Alongside the
namespace change, we now have the following names:

 * JS::NonnullGCPtr -> GC::Ref
 * JS::GCPtr -> GC::Ptr
 * JS::HeapFunction -> GC::Function
 * JS::CellImpl -> GC::Cell
 * JS::Handle -> GC::Root
2024-11-15 14:49:20 +01:00

45 lines
1.2 KiB
C++
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

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