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50f8755792
This is a new concept from the ShadowRealm API stage 3 proposal: https://tc39.es/proposal-shadowrealm/#sec-wrapped-function-exotic-objects
33 lines
1 KiB
C++
33 lines
1 KiB
C++
/*
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* Copyright (c) 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 <LibJS/Runtime/ShadowRealm.h>
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#include <LibJS/Runtime/WrappedFunction.h>
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namespace JS {
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// 3.1.3 GetWrappedValue ( callerRealm, value ), https://tc39.es/proposal-shadowrealm/#sec-getwrappedvalue
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ThrowCompletionOr<Value> get_wrapped_value(GlobalObject& global_object, Realm& caller_realm, Value value)
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{
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auto& vm = global_object.vm();
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// 1. Assert: callerRealm is a Realm Record.
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// 2. If Type(value) is Object, then
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if (value.is_object()) {
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// a. If IsCallable(value) is false, throw a TypeError exception.
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if (!value.is_function())
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return vm.throw_completion<TypeError>(global_object, ErrorType::ShadowRealmWrappedValueNonFunctionObject, value);
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// b. Return ! WrappedFunctionCreate(callerRealm, value).
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return { WrappedFunction::create(global_object, caller_realm, value.as_function()) };
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}
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// 3. Return value.
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return value;
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}
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}
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