runtime/JSJob.cpp

   1 /*
   2  * Copyright (C) 2013 Apple 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
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
  14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
  17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  23  * THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include "config.h"
  27 #include "JSJob.h"
  28
  29 #include "Error.h"
  30 #include "Exception.h"
  31 #include "JSCJSValueInlines.h"
  32 #include "JSCellInlines.h"
  33 #include "JSGlobalObject.h"
  34 #include "Microtask.h"
  35 #include "SlotVisitorInlines.h"
  36 #include "StrongInlines.h"
  37
  38 namespace JSC {
  39
  40 class JSJobMicrotask final : public Microtask {
  41 public:
  42     JSJobMicrotask(VM& vm, JSValue job, JSArray* arguments)
  43     {
  44         m_job.set(vm, job);
  45         m_arguments.set(vm, arguments);
  46     }
  47
  48     virtual ~JSJobMicrotask()
  49     {
  50     }
  51
  52 private:
  53     virtual void run(ExecState*) override;
  54
  55     Strong<Unknown> m_job;
  56     Strong<JSArray> m_arguments;
  57 };
  58
  59 Ref<Microtask> createJSJob(VM& vm, JSValue job, JSArray* arguments)
  60 {
  61     return adoptRef(*new JSJobMicrotask(vm, job, arguments));
  62 }
  63
  64 void JSJobMicrotask::run(ExecState* exec)
  65 {
  66     CallData handlerCallData;
  67     CallType handlerCallType = getCallData(m_job.get(), handlerCallData);
  68     ASSERT(handlerCallType != CallTypeNone);
  69
  70     MarkedArgumentBuffer handlerArguments;
  71     for (unsigned index = 0, length = m_arguments->length(); index < length; ++index)
  72         handlerArguments.append(m_arguments->JSArray::get(exec, index));
  73     call(exec, m_job.get(), handlerCallType, handlerCallData, jsUndefined(), handlerArguments);
  74 }
  75
  76 } // namespace JSC