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a4f70986a0
By doing that all instructions required for instantiation are emitted once in compilation and then reused for subsequent calls, instead of running generic instantiation process for each call.
53 lines
1.9 KiB
C++
53 lines
1.9 KiB
C++
/*
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* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021-2022, 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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#pragma once
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#include <AK/Optional.h>
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#include <AK/StringView.h>
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#include <LibJS/Runtime/Object.h>
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#include <LibJS/Runtime/PrivateEnvironment.h>
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#include <LibJS/Runtime/PropertyKey.h>
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namespace JS {
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class FunctionObject : public Object {
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JS_OBJECT(FunctionObject, Object);
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public:
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virtual ~FunctionObject() = default;
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// Table 7: Additional Essential Internal Methods of Function Objects, https://tc39.es/ecma262/#table-additional-essential-internal-methods-of-function-objects
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virtual ThrowCompletionOr<Value> internal_call(Value this_argument, ReadonlySpan<Value> arguments_list) = 0;
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virtual ThrowCompletionOr<NonnullGCPtr<Object>> internal_construct([[maybe_unused]] ReadonlySpan<Value> arguments_list, [[maybe_unused]] FunctionObject& new_target) { VERIFY_NOT_REACHED(); }
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virtual DeprecatedFlyString const& name() const = 0;
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void set_function_name(Variant<PropertyKey, PrivateName> const& name_arg, Optional<StringView> const& prefix = {});
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void set_function_length(double length);
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virtual bool is_strict_mode() const { return false; }
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virtual bool has_constructor() const { return false; }
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// [[Realm]]
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virtual Realm* realm() const { return nullptr; }
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virtual Vector<DeprecatedFlyString> const& local_variables_names() const { VERIFY_NOT_REACHED(); }
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virtual Vector<FunctionParameter> const& formal_parameters() const { VERIFY_NOT_REACHED(); }
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protected:
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explicit FunctionObject(Realm&, Object* prototype, MayInterfereWithIndexedPropertyAccess = MayInterfereWithIndexedPropertyAccess::No);
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explicit FunctionObject(Object& prototype, MayInterfereWithIndexedPropertyAccess = MayInterfereWithIndexedPropertyAccess::No);
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private:
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virtual bool is_function() const override { return true; }
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};
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}
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