mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 16:32:45 +00:00
103 lines
3.1 KiB
C++
103 lines
3.1 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/PropertyName.h>
|
|
#include <LibJS/Runtime/Value.h>
|
|
|
|
namespace JS {
|
|
|
|
class Reference {
|
|
public:
|
|
Reference() { }
|
|
Reference(Value base, const PropertyName& name, bool strict = false)
|
|
: m_base(base)
|
|
, m_name(name)
|
|
, m_strict(strict)
|
|
{
|
|
}
|
|
|
|
enum LocalVariableTag { LocalVariable };
|
|
Reference(LocalVariableTag, const String& name, bool strict = false)
|
|
: m_base(js_null())
|
|
, m_name(name)
|
|
, m_strict(strict)
|
|
, m_local_variable(true)
|
|
{
|
|
}
|
|
|
|
enum GlobalVariableTag { GlobalVariable };
|
|
Reference(GlobalVariableTag, const String& name, bool strict = false)
|
|
: m_base(js_null())
|
|
, m_name(name)
|
|
, m_strict(strict)
|
|
, m_global_variable(true)
|
|
{
|
|
}
|
|
|
|
Value base() const { return m_base; }
|
|
const PropertyName& name() const { return m_name; }
|
|
bool is_strict() const { return m_strict; }
|
|
|
|
bool is_unresolvable() const { return m_base.is_undefined(); }
|
|
bool is_property() const
|
|
{
|
|
return m_base.is_object() || has_primitive_base();
|
|
}
|
|
|
|
bool has_primitive_base() const
|
|
{
|
|
return m_base.is_boolean() || m_base.is_string() || m_base.is_number();
|
|
}
|
|
|
|
bool is_local_variable() const
|
|
{
|
|
return m_local_variable;
|
|
}
|
|
|
|
bool is_global_variable() const
|
|
{
|
|
return m_global_variable;
|
|
}
|
|
|
|
void put(GlobalObject&, Value);
|
|
Value get(GlobalObject&);
|
|
|
|
private:
|
|
void throw_reference_error(GlobalObject&);
|
|
|
|
Value m_base { js_undefined() };
|
|
PropertyName m_name;
|
|
bool m_strict { false };
|
|
bool m_local_variable { false };
|
|
bool m_global_variable { false };
|
|
};
|
|
|
|
const LogStream& operator<<(const LogStream&, const Value&);
|
|
|
|
}
|