d00b79568f
https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#cother-other-default-operation-rules "The compiler is more likely to get the default semantics right and you cannot implement these functions better than the compiler."
44 lines
1.3 KiB
C++
44 lines
1.3 KiB
C++
/*
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* Copyright (c) 2020-2021, 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_global_object<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(GlobalObject& global_object, Value number)
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{
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VERIFY(number.is_number());
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auto& vm = global_object.vm();
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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>(global_object, 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::create_from((i64)number.as_double()));
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}
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}
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