62 lines
2.7 KiB
C++
62 lines
2.7 KiB
C++
/*
|
|
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
|
|
* Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Badge.h>
|
|
#include <AK/Optional.h>
|
|
#include <LibJS/Runtime/Completion.h>
|
|
#include <LibJS/Runtime/FunctionObject.h>
|
|
#include <LibJS/Runtime/PropertyKey.h>
|
|
#include <LibJS/SafeFunction.h>
|
|
|
|
namespace JS {
|
|
|
|
class NativeFunction : public FunctionObject {
|
|
JS_OBJECT(NativeFunction, FunctionObject);
|
|
|
|
public:
|
|
static NonnullGCPtr<NativeFunction> create(Realm&, SafeFunction<ThrowCompletionOr<Value>(VM&)> behaviour, i32 length, PropertyKey const& name, Optional<Realm*> = {}, Optional<Object*> prototype = {}, Optional<StringView> const& prefix = {});
|
|
static NonnullGCPtr<NativeFunction> create(Realm&, DeprecatedFlyString const& name, SafeFunction<ThrowCompletionOr<Value>(VM&)>);
|
|
|
|
virtual ~NativeFunction() override = default;
|
|
|
|
virtual ThrowCompletionOr<Value> internal_call(Value this_argument, MarkedVector<Value> arguments_list) override;
|
|
virtual ThrowCompletionOr<NonnullGCPtr<Object>> internal_construct(MarkedVector<Value> arguments_list, FunctionObject& new_target) override;
|
|
|
|
// Used for [[Call]] / [[Construct]]'s "...result of evaluating F in a manner that conforms to the specification of F".
|
|
// Needs to be overridden by all NativeFunctions without an m_native_function.
|
|
virtual ThrowCompletionOr<Value> call();
|
|
virtual ThrowCompletionOr<NonnullGCPtr<Object>> construct(FunctionObject& new_target);
|
|
|
|
virtual DeprecatedFlyString const& name() const override { return m_name; }
|
|
virtual bool is_strict_mode() const override;
|
|
virtual bool has_constructor() const override { return false; }
|
|
virtual Realm* realm() const override { return m_realm; }
|
|
|
|
Optional<DeprecatedFlyString> const& initial_name() const { return m_initial_name; }
|
|
void set_initial_name(Badge<FunctionObject>, DeprecatedFlyString initial_name) { m_initial_name = move(initial_name); }
|
|
|
|
protected:
|
|
NativeFunction(DeprecatedFlyString name, Object& prototype);
|
|
NativeFunction(SafeFunction<ThrowCompletionOr<Value>(VM&)>, Object* prototype, Realm& realm);
|
|
NativeFunction(DeprecatedFlyString name, SafeFunction<ThrowCompletionOr<Value>(VM&)>, Object& prototype);
|
|
explicit NativeFunction(Object& prototype);
|
|
|
|
private:
|
|
virtual bool is_native_function() const final { return true; }
|
|
|
|
DeprecatedFlyString m_name;
|
|
Optional<DeprecatedFlyString> m_initial_name; // [[InitialName]]
|
|
SafeFunction<ThrowCompletionOr<Value>(VM&)> m_native_function;
|
|
GCPtr<Realm> m_realm;
|
|
};
|
|
|
|
template<>
|
|
inline bool Object::fast_is<NativeFunction>() const { return is_native_function(); }
|
|
|
|
}
|