791855deab
Instead we just use a specific constructor. With this set of constructors using curly braces for constructing is highly recommended. As then it will not do too many implicit conversions which could lead to unexpected loss of data or calling the much slower double constructor. Also to ensure we don't feed (Un)SignedBigInteger infinities we throw RangeError earlier for Durations.
43 lines
1.2 KiB
C++
43 lines
1.2 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 <LibJS/Heap/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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BigInt::BigInt(Crypto::SignedBigInteger big_integer)
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: m_big_integer(move(big_integer))
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{
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VERIFY(!m_big_integer.is_invalid());
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}
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BigInt* js_bigint(Heap& heap, Crypto::SignedBigInteger big_integer)
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{
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return heap.allocate_without_realm<BigInt>(move(big_integer));
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}
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BigInt* js_bigint(VM& vm, Crypto::SignedBigInteger big_integer)
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{
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return js_bigint(vm.heap(), move(big_integer));
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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<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 js_bigint(vm, Crypto::SignedBigInteger { number.as_double() });
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}
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}
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