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Side by Side Diff: Source/bindings/v8/ExceptionState.h

Issue 351423002: Moved files under Source/bindings/v8 to Source/bindings/core/v8. (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Created 6 years, 5 months ago
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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 ExceptionState_h
32 #define ExceptionState_h
33
34 #include "bindings/v8/ScopedPersistent.h"
35 #include "bindings/v8/V8ThrowException.h"
36 #include "wtf/Noncopyable.h"
37 #include "wtf/text/WTFString.h"
38 #include <v8.h>
39
40 namespace WebCore {
41
42 typedef int ExceptionCode;
43
44 class ExceptionState {
45 WTF_MAKE_NONCOPYABLE(ExceptionState);
46 public:
47 enum Context {
48 ConstructionContext,
49 ExecutionContext,
50 DeletionContext,
51 GetterContext,
52 SetterContext,
53 EnumerationContext,
54 QueryContext,
55 IndexedGetterContext,
56 IndexedSetterContext,
57 IndexedDeletionContext,
58 UnknownContext, // FIXME: Remove this once we've flipped over to the new API.
59 };
60
61 ExceptionState(Context context, const char* propertyName, const char* interf aceName, const v8::Handle<v8::Object>& creationContext, v8::Isolate* isolate)
62 : m_code(0)
63 , m_context(context)
64 , m_propertyName(propertyName)
65 , m_interfaceName(interfaceName)
66 , m_creationContext(creationContext)
67 , m_isolate(isolate) { }
68
69 ExceptionState(Context context, const char* interfaceName, const v8::Handle< v8::Object>& creationContext, v8::Isolate* isolate)
70 : m_code(0)
71 , m_context(context)
72 , m_propertyName(0)
73 , m_interfaceName(interfaceName)
74 , m_creationContext(creationContext)
75 , m_isolate(isolate) { ASSERT(m_context == ConstructionContext || m_cont ext == EnumerationContext || m_context == IndexedSetterContext || m_context == I ndexedGetterContext || m_context == IndexedDeletionContext); }
76
77 virtual void throwDOMException(const ExceptionCode&, const String& message);
78 virtual void throwTypeError(const String& message);
79 virtual void throwSecurityError(const String& sanitizedMessage, const String & unsanitizedMessage = String());
80
81 bool hadException() const { return !m_exception.isEmpty() || m_code; }
82 void clearException();
83
84 ExceptionCode code() const { return m_code; }
85 const String& message() const { return m_message; }
86
87 bool throwIfNeeded()
88 {
89 if (!hadException())
90 return false;
91 throwException();
92 return true;
93 }
94
95 Context context() const { return m_context; }
96 const char* propertyName() const { return m_propertyName; }
97 const char* interfaceName() const { return m_interfaceName; }
98
99 void rethrowV8Exception(v8::Handle<v8::Value> value)
100 {
101 setException(value);
102 }
103
104 protected:
105 ExceptionCode m_code;
106 Context m_context;
107 String m_message;
108 const char* m_propertyName;
109 const char* m_interfaceName;
110
111 private:
112 void setException(v8::Handle<v8::Value>);
113 void throwException();
114
115 String addExceptionContext(const String&) const;
116
117 ScopedPersistent<v8::Value> m_exception;
118 v8::Handle<v8::Object> m_creationContext;
119 v8::Isolate* m_isolate;
120 };
121
122 // Used if exceptions can/should not be directly thrown.
123 class NonThrowableExceptionState FINAL : public ExceptionState {
124 public:
125 NonThrowableExceptionState(): ExceptionState(ExceptionState::UnknownContext, 0, 0, v8::Handle<v8::Object>(), v8::Isolate::GetCurrent()) { }
126 virtual void throwDOMException(const ExceptionCode&, const String& message) OVERRIDE;
127 virtual void throwTypeError(const String& message = String()) OVERRIDE;
128 virtual void throwSecurityError(const String& sanitizedMessage, const String & unsanitizedMessage = String()) OVERRIDE;
129 };
130
131 // Used if any exceptions thrown are ignorable.
132 class TrackExceptionState FINAL : public ExceptionState {
133 public:
134 TrackExceptionState(): ExceptionState(ExceptionState::UnknownContext, 0, 0, v8::Handle<v8::Object>(), v8::Isolate::GetCurrent()) { }
135 virtual void throwDOMException(const ExceptionCode&, const String& message) OVERRIDE;
136 virtual void throwTypeError(const String& message = String()) OVERRIDE;
137 virtual void throwSecurityError(const String& sanitizedMessage, const String & unsanitizedMessage = String()) OVERRIDE;
138 };
139
140 } // namespace WebCore
141
142 #endif // ExceptionState_h
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