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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_old_native_function(vm.names.asIntN, as_int_n, 2, attr);
- // define_old_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
- ThrowCompletionOr<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(value.to_primitive(global_object, Value::PreferredType::Number));
- // 3. If Type(prim) is Number, return ? NumberToBigInt(prim).
- if (primitive.is_number())
- return TRY(number_to_bigint(global_object, primitive));
- // 4. Otherwise, return ? ToBigInt(value).
- return TRY(value.to_bigint(global_object));
- }
- // 21.2.1.1 BigInt ( value ), https://tc39.es/ecma262/#sec-bigint-constructor-number-value
- ThrowCompletionOr<Object*> BigIntConstructor::construct(FunctionObject&)
- {
- return vm().throw_completion<TypeError>(global_object(), ErrorType::NotAConstructor, "BigInt");
- }
- // 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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