1/*
2 * Copyright (C) 2014-2018 Apple Inc. All rights reserved.
3 * Copyright (c) 2010 Google Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met:
8 *
9 * * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * * Redistributions in binary form must reproduce the above
12 * copyright notice, this list of conditions and the following disclaimer
13 * in the documentation and/or other materials provided with the
14 * distribution.
15 * * Neither the name of Google Inc. nor the names of its
16 * contributors may be used to endorse or promote products derived from
17 * this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include "config.h"
33#include "ScriptArguments.h"
34
35#include "CatchScope.h"
36#include "JSCInlines.h"
37#include "ProxyObject.h"
38#include "StrongInlines.h"
39
40namespace Inspector {
41
42Ref<ScriptArguments> ScriptArguments::create(JSC::JSGlobalObject* globalObject, Vector<JSC::Strong<JSC::Unknown>>&& arguments)
43{
44 return adoptRef(*new ScriptArguments(globalObject, WTFMove(arguments)));
45}
46
47ScriptArguments::ScriptArguments(JSC::JSGlobalObject* globalObject, Vector<JSC::Strong<JSC::Unknown>>&& arguments)
48 : m_globalObject(globalObject->vm(), globalObject)
49 , m_arguments(WTFMove(arguments))
50{
51}
52
53ScriptArguments::~ScriptArguments() = default;
54
55JSC::JSValue ScriptArguments::argumentAt(size_t index) const
56{
57 ASSERT(m_arguments.size() > index);
58 return m_arguments[index].get();
59}
60
61JSC::JSGlobalObject* ScriptArguments::globalObject() const
62{
63 return m_globalObject.get();
64}
65
66bool ScriptArguments::getFirstArgumentAsString(String& result) const
67{
68 if (!argumentCount())
69 return false;
70
71 auto* globalObject = this->globalObject();
72 if (!globalObject) {
73 ASSERT_NOT_REACHED();
74 return false;
75 }
76
77 auto value = argumentAt(0);
78 if (JSC::jsDynamicCast<JSC::ProxyObject*>(globalObject->vm(), value)) {
79 result = "[object Proxy]"_s;
80 return true;
81 }
82
83 auto scope = DECLARE_CATCH_SCOPE(globalObject->vm());
84 result = value.toWTFString(globalObject);
85 scope.clearException();
86 return true;
87}
88
89bool ScriptArguments::isEqual(const ScriptArguments& other) const
90{
91 auto size = m_arguments.size();
92
93 if (size != other.m_arguments.size())
94 return false;
95
96 if (!size)
97 return true;
98
99 auto* globalObject = this->globalObject();
100 if (!globalObject)
101 return false;
102
103 for (size_t i = 0; i < size; ++i) {
104 auto a = m_arguments[i].get();
105 auto b = other.m_arguments[i].get();
106 if (!a || !b) {
107 if (a != b)
108 return false;
109 } else {
110 auto scope = DECLARE_CATCH_SCOPE(globalObject->vm());
111 bool result = JSC::JSValue::strictEqual(globalObject, a, b);
112 scope.clearException();
113 if (!result)
114 return false;
115 }
116 }
117
118 return true;
119}
120
121} // namespace Inspector
122