1/*
2 * Copyright (C) 2013 Google 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 are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#ifndef ExceptionStatePlaceholder_h
32#define ExceptionStatePlaceholder_h
33
34#include "bindings/core/v8/ExceptionState.h"
35#include "wtf/Assertions.h"
36#include "wtf/text/WTFString.h"
37#include <v8.h>
38
39namespace blink {
40
41class ExceptionState;
42
43typedef int ExceptionCode;
44
45class IgnorableExceptionState FINAL : public ExceptionState {
46public:
47    IgnorableExceptionState(): ExceptionState(ExceptionState::UnknownContext, 0, 0, v8::Handle<v8::Object>(), 0) { }
48    ExceptionState& returnThis() { return *this; }
49    virtual void throwDOMException(const ExceptionCode&, const String& message = String()) OVERRIDE { }
50    virtual void throwTypeError(const String& message = String()) OVERRIDE { }
51    virtual void throwSecurityError(const String& sanitizedMessage, const String& unsanitizedMessage = String()) OVERRIDE { }
52};
53
54#define IGNORE_EXCEPTION (::blink::IgnorableExceptionState().returnThis())
55
56#if ENABLE(ASSERT)
57
58class NoExceptionStateAssertionChecker FINAL : public ExceptionState {
59public:
60    NoExceptionStateAssertionChecker(const char* file, int line);
61    ExceptionState& returnThis() { return *this; }
62    virtual void throwDOMException(const ExceptionCode&, const String& message = String()) OVERRIDE;
63    virtual void throwTypeError(const String& message = String()) OVERRIDE;
64    virtual void throwSecurityError(const String& sanitizedMessage, const String& unsanitizedMessage = String()) OVERRIDE;
65
66private:
67    const char* m_file;
68    int m_line;
69};
70
71#define ASSERT_NO_EXCEPTION (::blink::NoExceptionStateAssertionChecker(__FILE__, __LINE__).returnThis())
72
73#else
74
75#define ASSERT_NO_EXCEPTION (::blink::IgnorableExceptionState().returnThis())
76
77#endif
78
79} // namespace blink
80
81#endif // ExceptionStatePlaceholder_h
82