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
132
133
|
/*
* Copyright (C) 2009, 2012 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.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_WORKER_OR_WORKLET_SCRIPT_CONTROLLER_H_
#define THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_WORKER_OR_WORKLET_SCRIPT_CONTROLLER_H_
#include "third_party/blink/renderer/bindings/core/v8/rejected_promises.h"
#include "third_party/blink/renderer/bindings/core/v8/script_value.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_binding_for_core.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_cache_options.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/platform/wtf/allocator.h"
#include "third_party/blink/renderer/platform/wtf/text/text_position.h"
#include "v8/include/v8.h"
namespace blink {
class ErrorEvent;
class ExceptionState;
class ScriptSourceCode;
class WorkerOrWorkletGlobalScope;
class CORE_EXPORT WorkerOrWorkletScriptController final
: public GarbageCollectedFinalized<WorkerOrWorkletScriptController> {
WTF_MAKE_NONCOPYABLE(WorkerOrWorkletScriptController);
public:
static WorkerOrWorkletScriptController* Create(WorkerOrWorkletGlobalScope*,
v8::Isolate*);
virtual ~WorkerOrWorkletScriptController();
void Dispose();
bool IsExecutionForbidden() const;
// Returns true if the evaluation completed with no uncaught exception.
bool Evaluate(const ScriptSourceCode&,
ErrorEvent** = nullptr,
V8CacheOptions = kV8CacheOptionsDefault);
// Prevents future JavaScript execution.
void ForbidExecution();
// Used by WorkerThread. Returns true if the context is successfully
// initialized or already initialized.
bool InitializeContextIfNeeded(const String& human_readable_name);
// Used by WorkerGlobalScope:
void RethrowExceptionFromImportedScript(ErrorEvent*, ExceptionState&);
void DisableEval(const String&);
// Used by Inspector agents:
ScriptState* GetScriptState() { return script_state_; }
// Used by V8 bindings:
v8::Local<v8::Context> GetContext() {
return script_state_ ? script_state_->GetContext()
: v8::Local<v8::Context>();
}
RejectedPromises* GetRejectedPromises() const {
return rejected_promises_.get();
}
void Trace(blink::Visitor*);
bool IsContextInitialized() const {
return script_state_ && !!script_state_->PerContextData();
}
ScriptValue EvaluateAndReturnValueForTest(const ScriptSourceCode&);
private:
WorkerOrWorkletScriptController(WorkerOrWorkletGlobalScope*, v8::Isolate*);
class ExecutionState;
// Evaluate a script file in the current execution environment.
ScriptValue EvaluateInternal(const ScriptSourceCode&,
V8CacheOptions);
void DisposeContextIfNeeded();
Member<WorkerOrWorkletGlobalScope> global_scope_;
// The v8 isolate associated to the (worker or worklet) global scope. For
// workers this should be the worker thread's isolate, while for worklets
// usually the main thread's isolate is used.
v8::Isolate* isolate_;
Member<ScriptState> script_state_;
scoped_refptr<DOMWrapperWorld> world_;
String disable_eval_pending_;
bool execution_forbidden_;
scoped_refptr<RejectedPromises> rejected_promises_;
// |m_executionState| refers to a stack object that evaluate() allocates;
// evaluate() ensuring that the pointer reference to it is removed upon
// returning. Hence kept as a bare pointer here, and not a Persistent with
// Oilpan enabled; stack scanning will visit the object and
// trace its on-heap fields.
GC_PLUGIN_IGNORE("394615")
ExecutionState* execution_state_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_WORKER_OR_WORKLET_SCRIPT_CONTROLLER_H_
|
