mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-04-25 14:05:15 +00:00
c3fe9b4df8
Both GlobalObject and LexicalEnvironment now inherit from ScopeObject, and the VM's call frames point to a ScopeObject chain rather than just a LexicalEnvironment chain. This gives us much more flexibility to implement things like "with", and also unifies some of the code paths that previously required special handling of the global object. There's a bunch of more cleanup that can be done in the wake of this change, and there might be some oversights in the handling of the "super" keyword, but this generally seems like a good architectural improvement. :^)
78 lines
3.2 KiB
C++
78 lines
3.2 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 <LibJS/AST.h>
|
|
#include <LibJS/Runtime/Function.h>
|
|
|
|
namespace JS {
|
|
|
|
class ScriptFunction final : public Function {
|
|
JS_OBJECT(ScriptFunction, Function);
|
|
|
|
public:
|
|
static ScriptFunction* create(GlobalObject&, const FlyString& name, const Statement& body, Vector<FunctionNode::Parameter> parameters, i32 m_function_length, ScopeObject* parent_scope, bool is_strict, bool is_arrow_function = false);
|
|
|
|
ScriptFunction(GlobalObject&, const FlyString& name, const Statement& body, Vector<FunctionNode::Parameter> parameters, i32 m_function_length, ScopeObject* parent_scope, Object& prototype, bool is_strict, bool is_arrow_function = false);
|
|
virtual void initialize(GlobalObject&) override;
|
|
virtual ~ScriptFunction();
|
|
|
|
const Statement& body() const { return m_body; }
|
|
const Vector<FunctionNode::Parameter>& parameters() const { return m_parameters; };
|
|
|
|
virtual Value call() override;
|
|
virtual Value construct(Function& new_target) override;
|
|
|
|
virtual const FlyString& name() const override { return m_name; };
|
|
void set_name(const FlyString& name) { m_name = name; };
|
|
|
|
void set_is_class_constructor() { m_is_class_constructor = true; };
|
|
|
|
protected:
|
|
virtual bool is_strict_mode() const final { return m_is_strict; }
|
|
|
|
private:
|
|
virtual bool is_script_function() const override { return true; }
|
|
virtual LexicalEnvironment* create_environment() override;
|
|
virtual void visit_edges(Visitor&) override;
|
|
|
|
Value execute_function_body();
|
|
|
|
JS_DECLARE_NATIVE_GETTER(length_getter);
|
|
JS_DECLARE_NATIVE_GETTER(name_getter);
|
|
|
|
FlyString m_name;
|
|
NonnullRefPtr<Statement> m_body;
|
|
const Vector<FunctionNode::Parameter> m_parameters;
|
|
ScopeObject* m_parent_scope { nullptr };
|
|
i32 m_function_length { 0 };
|
|
bool m_is_strict { false };
|
|
bool m_is_arrow_function { false };
|
|
bool m_is_class_constructor { false };
|
|
};
|
|
|
|
}
|