1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
/*
* Copyright (c) 2020, Matthew Olsson <matthewcolsson@gmail.com>
* Copyright (c) 2020, Linus Groh <mail@linusgroh.de>
* 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/Runtime/Function.h>
namespace JS {
class Accessor final : public Cell {
public:
static Accessor* create(Interpreter& interpreter, Function* getter, Function* setter)
{
return interpreter.heap().allocate<Accessor>(getter, setter);
}
Accessor(Function* getter, Function* setter)
: m_getter(getter)
, m_setter(setter)
{
}
Function* getter() const { return m_getter; }
void set_getter(Function* getter) { m_getter = getter; }
Function* setter() const { return m_setter; }
void set_setter(Function* setter) { m_setter = setter; }
Value call_getter(Value this_value)
{
if (!m_getter)
return js_undefined();
return interpreter().call(*m_getter, this_value);
}
void call_setter(Value this_value, Value setter_value)
{
if (!m_setter)
return;
MarkedValueList arguments(interpreter().heap());
arguments.values().append(setter_value);
interpreter().call(*m_setter, this_value, move(arguments));
}
void visit_children(Cell::Visitor& visitor) override
{
visitor.visit(m_getter);
visitor.visit(m_setter);
}
private:
const char* class_name() const override { return "Accessor"; };
Function* m_getter { nullptr };
Function* m_setter { nullptr };
};
}
|
