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/*
* Copyright (c) 2020-2021, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/String.h>
#include <LibJS/Runtime/BigInt.h>
#include <LibJS/Runtime/BigIntConstructor.h>
#include <LibJS/Runtime/BigIntObject.h>
#include <LibJS/Runtime/Error.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/VM.h>
namespace JS {
BigIntConstructor::BigIntConstructor(GlobalObject& global_object)
: NativeFunction(vm().names.BigInt.as_string(), *global_object.function_prototype())
{
}
void BigIntConstructor::initialize(GlobalObject& global_object)
{
auto& vm = this->vm();
NativeFunction::initialize(global_object);
// 21.2.2.3 BigInt.prototype, https://tc39.es/ecma262/#sec-bigint.prototype
define_direct_property(vm.names.prototype, global_object.bigint_prototype(), 0);
// TODO: Implement these functions below and uncomment this.
// u8 attr = Attribute::Writable | Attribute::Configurable;
// define_native_function(vm.names.asIntN, as_int_n, 2, attr);
// define_native_function(vm.names.asUintN, as_uint_n, 2, attr);
define_direct_property(vm.names.length, Value(1), Attribute::Configurable);
}
BigIntConstructor::~BigIntConstructor()
{
}
// 21.2.1.1 BigInt ( value ), https://tc39.es/ecma262/#sec-bigint-constructor-number-value
Value BigIntConstructor::call()
{
auto& vm = this->vm();
auto& global_object = this->global_object();
auto value = vm.argument(0);
// 2. Let prim be ? ToPrimitive(value, number).
auto primitive = TRY_OR_DISCARD(value.to_primitive(global_object, Value::PreferredType::Number));
// 3. If Type(prim) is Number, return ? NumberToBigInt(prim).
if (primitive.is_number())
return number_to_bigint(global_object, primitive);
// 4. Otherwise, return ? ToBigInt(value).
return TRY_OR_DISCARD(value.to_bigint(global_object));
}
// 21.2.1.1 BigInt ( value ), https://tc39.es/ecma262/#sec-bigint-constructor-number-value
Value BigIntConstructor::construct(FunctionObject&)
{
vm().throw_exception<TypeError>(global_object(), ErrorType::NotAConstructor, "BigInt");
return {};
}
// 21.2.2.1 BigInt.asIntN ( bits, bigint ), https://tc39.es/ecma262/#sec-bigint.asintn
JS_DEFINE_OLD_NATIVE_FUNCTION(BigIntConstructor::as_int_n)
{
TODO();
}
// 21.2.2.2 BigInt.asUintN ( bits, bigint ), https://tc39.es/ecma262/#sec-bigint.asuintn
JS_DEFINE_OLD_NATIVE_FUNCTION(BigIntConstructor::as_uint_n)
{
TODO();
}
}
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