f58891ed42
We already have js_string(VM&, ...) and js_symbol(VM&, ...) overloads, so feels very familiar.
50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
/*
|
||
* Copyright (c) 2020-2021, Linus Groh <linusg@serenityos.org>
|
||
*
|
||
* SPDX-License-Identifier: BSD-2-Clause
|
||
*/
|
||
|
||
#include <LibCrypto/BigInt/SignedBigInteger.h>
|
||
#include <LibJS/Heap/Heap.h>
|
||
#include <LibJS/Runtime/BigInt.h>
|
||
#include <LibJS/Runtime/GlobalObject.h>
|
||
|
||
namespace JS {
|
||
|
||
BigInt::BigInt(Crypto::SignedBigInteger big_integer)
|
||
: m_big_integer(move(big_integer))
|
||
{
|
||
VERIFY(!m_big_integer.is_invalid());
|
||
}
|
||
|
||
BigInt::~BigInt()
|
||
{
|
||
}
|
||
|
||
BigInt* js_bigint(Heap& heap, Crypto::SignedBigInteger big_integer)
|
||
{
|
||
return heap.allocate_without_global_object<BigInt>(move(big_integer));
|
||
}
|
||
|
||
BigInt* js_bigint(VM& vm, Crypto::SignedBigInteger big_integer)
|
||
{
|
||
return js_bigint(vm.heap(), move(big_integer));
|
||
}
|
||
|
||
// 21.2.1.1.1 NumberToBigInt ( number ), https://tc39.es/ecma262/#sec-numbertobigint
|
||
BigInt* number_to_bigint(GlobalObject& global_object, Value number)
|
||
{
|
||
VERIFY(number.is_number());
|
||
auto& vm = global_object.vm();
|
||
|
||
// 1. If IsIntegralNumber(number) is false, throw a RangeError exception.
|
||
if (!number.is_integral_number()) {
|
||
vm.throw_exception<RangeError>(global_object, ErrorType::BigIntFromNonIntegral);
|
||
return {};
|
||
}
|
||
|
||
// 2. Return the BigInt value that represents ℝ(number).
|
||
return js_bigint(vm, Crypto::SignedBigInteger::create_from((i64)number.as_double()));
|
||
}
|
||
|
||
}
|