Initial implementation of bindings and basic classes for worklets.

third_party/WebKit/Source/bindings/core/v8/GlobalScopeScriptController.h

 /*
  * 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
@@ skipping 10 matching lines @@
  * 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 WorkerScriptController_h
-#define WorkerScriptController_h
+#ifndef GlobalScopeScriptController_h
+#define GlobalScopeScriptController_h
 
 #include "bindings/core/v8/RejectedPromises.h"
 #include "bindings/core/v8/ScriptValue.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8CacheOptions.h"
 #include "core/CoreExport.h"
 #include "wtf/Allocator.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/ThreadingPrimitives.h"
 #include "wtf/text/TextPosition.h"
 #include <v8.h>
 
 namespace blink {
 
 class CachedMetadataHandler;
 class ErrorEvent;
 class ExceptionState;
 class ScriptSourceCode;
-class WorkerGlobalScope;
 
-class CORE_EXPORT WorkerScriptController : public NoBaseWillBeGarbageCollectedFinalized<WorkerScriptController> {
-    USING_FAST_MALLOC_WILL_BE_REMOVED(WorkerScriptController);
-    WTF_MAKE_NONCOPYABLE(WorkerScriptController);
+class CORE_EXPORT GlobalScopeScriptController : public NoBaseWillBeGarbageCollectedFinalized<GlobalScopeScriptController> {
 public:
-    static PassOwnPtrWillBeRawPtr<WorkerScriptController> create(WorkerGlobalScope*, v8::Isolate*);
-    virtual ~WorkerScriptController();
+    virtual ~GlobalScopeScriptController();
     void dispose();
 
     bool isExecutionForbidden() const;
     bool isExecutionTerminating() const;
 
     // Returns true if the evaluation completed with no uncaught exception.
     bool evaluate(const ScriptSourceCode&, RefPtrWillBeRawPtr<ErrorEvent>* = nullptr, CachedMetadataHandler* = nullptr, V8CacheOptions = V8CacheOptionsDefault);
 
     // Prevents future JavaScript execution. See
     // willScheduleExecutionTermination, isExecutionForbidden.
     void forbidExecution();
 
     // Used by WorkerThread:
     bool initializeContextIfNeeded();
     // Async request to terminate future JavaScript execution on the
     // worker thread. JavaScript evaluation exits with a
-    // non-continuable exception and WorkerScriptController calls
+    // non-continuable exception and GlobalScopeScriptController calls
     // forbidExecution to prevent further JavaScript execution. Use
     // forbidExecution()/isExecutionForbidden() to guard against
     // reentry into JavaScript.
     void willScheduleExecutionTermination();
 
     // Used by WorkerGlobalScope:
     void rethrowExceptionFromImportedScript(PassRefPtrWillBeRawPtr<ErrorEvent>, ExceptionState&);
     void disableEval(const String&);
 
     // Used by Inspector agents:
     ScriptState* scriptState() { return m_scriptState.get(); }
 
     // Used by V8 bindings:
     v8::Local<v8::Context> context() { return m_scriptState ? m_scriptState->context() : v8::Local<v8::Context>(); }
 
     RejectedPromises* rejectedPromises() const { return m_rejectedPromises.get(); }
 
-    DECLARE_TRACE();
+    DECLARE_VIRTUAL_TRACE();
 
     bool isContextInitialized() const { return m_scriptState && !!m_scriptState->perContextData(); }
 
+protected:
+    GlobalScopeScriptController(v8::Isolate*);
+
+    virtual void didStopRunLoop() = 0;

[kinuko, 2015/12/24 04:45:51]

(I think we can remove this from Worker*ScriptController, I'll be uploading a
patch for this)

[ikilpatrick, 2015/12/27 20:22:39]

Done.

+    virtual v8::Isolate* isolate() const = 0;

[kinuko, 2015/12/24 04:45:51]

We can just store isolate ptr given to the ctor as m_isolate

[ikilpatrick, 2015/12/27 20:22:39]

Done.

+    virtual bool isContextThread() const = 0;

[kinuko, 2015/12/24 04:45:51]

For this, runCompiledScript, shouldSanitizedScriptError and reportException I
think this class can simply take ExecutionContext as a ctor param and use the
methods of it (We can assert the context's type in ctor)

[ikilpatrick, 2015/12/27 20:22:39]

Done.

+
+    virtual const WrapperTypeInfo* wrapperTypeInfoForGlobalScope() const = 0;
+    virtual v8::Local<v8::Object> associateGlobalScopeWithWrapper(const WrapperTypeInfo*, v8::Local<v8::Object> wrapper) = 0;

[kinuko, 2015/12/24 04:45:51]

For these ones similarly I think we can basically take ScriptWrappable in ctor
or when we call initializeContextIfNeeded (and evaluate())

[ikilpatrick, 2015/12/27 20:22:39]

Done.

+    virtual v8::MaybeLocal<v8::Value> runCompiledScript(v8::Local<v8::Script>) = 0;
+
+    virtual bool shouldSanitizeScriptError(const String& sourceURL, AccessControlStatus) = 0;
+    virtual void reportException(PassRefPtrWillBeRawPtr<ErrorEvent>, int scriptId, PassRefPtrWillBeRawPtr<ScriptCallStack>, AccessControlStatus) = 0;
+
 private:
-    WorkerScriptController(WorkerGlobalScope*, v8::Isolate*);
-    class WorkerGlobalScopeExecutionState;
+    class ExecutionState;
 
-    v8::Isolate* isolate() const;
 
     // Evaluate a script file in the current execution environment.
     ScriptValue evaluate(const String& script, const String& fileName, const TextPosition& scriptStartPosition, CachedMetadataHandler*, V8CacheOptions);
 
-    RawPtrWillBeMember<WorkerGlobalScope> m_workerGlobalScope;
     RefPtr<ScriptState> m_scriptState;
     RefPtr<DOMWrapperWorld> m_world;
     String m_disableEvalPending;
     bool m_executionForbidden;
     bool m_executionScheduledToTerminate;
     mutable Mutex m_scheduledTerminationMutex;
 
     RefPtrWillBeMember<RejectedPromises> m_rejectedPromises;
 
-    // |m_globalScopeExecutionState| 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
+    // |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")
-    WorkerGlobalScopeExecutionState* m_globalScopeExecutionState;
+    ExecutionState* m_executionState;
 };
 
 } // namespace blink
 
-#endif // WorkerScriptController_h
+#endif // GlobalScopeScriptController_h