ladybird/Libraries/LibJS/Runtime/Function.h
Andreas Kling a007b3c379 LibJS: Move "strict mode" state to the call stack
Each call frame now knows whether it's executing in strict mode.
It's no longer necessary to access the scope stack to find this mode.
2020-10-04 17:03:33 +02:00

81 lines
2.9 KiB
C++

/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/String.h>
#include <LibJS/Runtime/Object.h>
namespace JS {
class Function : public Object {
JS_OBJECT(Function, Object);
public:
enum class ConstructorKind {
Base,
Derived,
};
virtual ~Function();
virtual void initialize(GlobalObject&) override { }
virtual Value call() = 0;
virtual Value construct(Function& new_target) = 0;
virtual const FlyString& name() const = 0;
virtual LexicalEnvironment* create_environment() = 0;
virtual void visit_children(Visitor&) override;
virtual bool is_script_function() const { return false; }
BoundFunction* bind(Value bound_this_value, Vector<Value> arguments);
Value bound_this() const { return m_bound_this; }
const Vector<Value>& bound_arguments() const { return m_bound_arguments; }
Value home_object() const { return m_home_object; }
void set_home_object(Value home_object) { m_home_object = home_object; }
ConstructorKind constructor_kind() const { return m_constructor_kind; };
void set_constructor_kind(ConstructorKind constructor_kind) { m_constructor_kind = constructor_kind; }
virtual bool is_strict_mode() const { return false; }
protected:
explicit Function(Object& prototype);
Function(Object& prototype, Value bound_this, Vector<Value> bound_arguments);
private:
virtual bool is_function() const override { return true; }
Value m_bound_this;
Vector<Value> m_bound_arguments;
Value m_home_object;
ConstructorKind m_constructor_kind = ConstructorKind::Base;
};
}