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
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
/*
* Copyright (C) 2009 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* 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
* OWNER 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.
*/
#include "third_party/blink/renderer/core/events/error_event.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_binding_for_core.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_error_event_init.h"
#include "third_party/blink/renderer/core/event_interface_names.h"
#include "v8/include/v8.h"
namespace blink {
ErrorEvent* ErrorEvent::CreateSanitizedError(ScriptState* script_state) {
// "6. If script's muted errors is true, then set message to "Script error.",
// urlString to the empty string, line and col to 0, and errorValue to null."
// https://html.spec.whatwg.org/C/#runtime-script-errors:muted-errors
DCHECK(script_state);
return MakeGarbageCollected<ErrorEvent>(
"Script error.",
std::make_unique<SourceLocation>(String(), 0, 0, nullptr),
ScriptValue::CreateNull(script_state->GetIsolate()),
&script_state->World());
}
ErrorEvent::ErrorEvent()
: sanitized_message_(),
location_(std::make_unique<SourceLocation>(String(), 0, 0, nullptr)),
world_(&DOMWrapperWorld::Current(v8::Isolate::GetCurrent())) {}
ErrorEvent::ErrorEvent(ScriptState* script_state,
const AtomicString& type,
const ErrorEventInit* initializer)
: Event(type, initializer),
sanitized_message_(),
world_(&script_state->World()) {
sanitized_message_ = initializer->message();
location_ = std::make_unique<SourceLocation>(initializer->filename(),
initializer->lineno(),
initializer->colno(), nullptr);
// TODO(crbug.com/1070964): Remove this existence check. There is a bug that
// the current code generator does not initialize a ScriptValue with the
// v8::Null value despite that the dictionary member has the default value of
// IDL null. |hasError| guard is necessary here.
if (initializer->hasError()) {
v8::Local<v8::Value> error = initializer->error().V8Value();
// TODO(crbug.com/1070871): Remove the following IsNullOrUndefined() check.
// This null/undefined check fills the gap between the new and old bindings
// code. The new behavior is preferred in a long term, and we'll switch to
// the new behavior once the migration to the new bindings gets settled.
if (!error->IsNullOrUndefined()) {
error_.Set(script_state->GetIsolate(), error);
}
}
}
ErrorEvent::ErrorEvent(const String& message,
std::unique_ptr<SourceLocation> location,
ScriptValue error,
DOMWrapperWorld* world)
: Event(event_type_names::kError, Bubbles::kNo, Cancelable::kYes),
sanitized_message_(message),
location_(std::move(location)),
world_(world) {
if (!error.IsEmpty())
error_.Set(error.GetIsolate(), error.V8Value());
}
void ErrorEvent::SetUnsanitizedMessage(const String& message) {
DCHECK(unsanitized_message_.IsEmpty());
unsanitized_message_ = message;
}
ErrorEvent::~ErrorEvent() = default;
const AtomicString& ErrorEvent::InterfaceName() const {
return event_interface_names::kErrorEvent;
}
bool ErrorEvent::IsErrorEvent() const {
return true;
}
bool ErrorEvent::CanBeDispatchedInWorld(const DOMWrapperWorld& world) const {
return !world_ || world_ == &world;
}
ScriptValue ErrorEvent::error(ScriptState* script_state) const {
// Don't return |error_| when we are in the different worlds to avoid
// leaking a V8 value.
// We do not clone Error objects (exceptions), for 2 reasons:
// 1) Errors carry a reference to the isolated world's global object, and
// thus passing it around would cause leakage.
// 2) Errors cannot be cloned (or serialized):
if (World() != &script_state->World() || error_.IsEmpty())
return ScriptValue::CreateNull(script_state->GetIsolate());
return ScriptValue(script_state->GetIsolate(), error_.Get(script_state));
}
void ErrorEvent::Trace(Visitor* visitor) {
visitor->Trace(error_);
Event::Trace(visitor);
}
} // namespace blink
|
