1/*
2 * Copyright (C) 2014 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "CallFrame.h"
29#include "JSGlobalObject.h"
30
31namespace JSC {
32
33class DebuggerEvalEnabler {
34public:
35 enum class Mode {
36 EvalOnCurrentCallFrame,
37 EvalOnGlobalObjectAtDebuggerEntry,
38 };
39
40 DebuggerEvalEnabler(JSGlobalObject* globalObject, Mode mode = Mode::EvalOnCurrentCallFrame)
41 : m_globalObject(globalObject)
42#if !ASSERT_DISABLED
43 , m_mode(mode)
44#endif
45
46 {
47 UNUSED_PARAM(mode);
48 if (globalObject) {
49 m_evalWasDisabled = !globalObject->evalEnabled();
50 if (m_evalWasDisabled)
51 globalObject->setEvalEnabled(true, globalObject->evalDisabledErrorMessage());
52#if !ASSERT_DISABLED
53 if (m_mode == Mode::EvalOnGlobalObjectAtDebuggerEntry)
54 globalObject->setGlobalObjectAtDebuggerEntry(globalObject);
55#endif
56 }
57 }
58
59 ~DebuggerEvalEnabler()
60 {
61 if (m_globalObject) {
62 JSGlobalObject* globalObject = m_globalObject;
63 if (m_evalWasDisabled)
64 globalObject->setEvalEnabled(false, globalObject->evalDisabledErrorMessage());
65#if !ASSERT_DISABLED
66 if (m_mode == Mode::EvalOnGlobalObjectAtDebuggerEntry)
67 globalObject->setGlobalObjectAtDebuggerEntry(nullptr);
68#endif
69 }
70 }
71
72private:
73 JSGlobalObject* m_globalObject;
74 bool m_evalWasDisabled { false };
75#if !ASSERT_DISABLED
76 DebuggerEvalEnabler::Mode m_mode;
77#endif
78};
79
80} // namespace JSC
81