runtime/TemplateRegistry.cpp

   1 /*
   2  * Copyright (C) 2015 Yusuke Suzuki <utatane.tea@gmail.com>.
   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 "TemplateRegistry.h"
  28
  29 #include "JSCJSValueInlines.h"
  30 #include "JSGlobalObject.h"
  31 #include "ObjectConstructor.h"
  32 #include "StructureInlines.h"
  33 #include "WeakGCMapInlines.h"
  34
  35 namespace JSC {
  36
  37 TemplateRegistry::TemplateRegistry(VM& vm)
  38     : m_templateMap(vm)
  39 {
  40 }
  41
  42 JSArray* TemplateRegistry::getTemplateObject(ExecState* exec, const TemplateRegistryKey& templateKey)
  43 {
  44     JSArray* cached = m_templateMap.get(templateKey);
  45     if (cached)
  46         return cached;
  47
  48     unsigned count = templateKey.cookedStrings().size();
  49     JSArray* templateObject = constructEmptyArray(exec, nullptr, count);
  50     JSArray* rawObject = constructEmptyArray(exec, nullptr, count);
  51
  52     for (unsigned index = 0; index < count; ++index) {
  53         templateObject->putDirectIndex(exec, index, jsString(exec, templateKey.cookedStrings()[index]), ReadOnly | DontDelete, PutDirectIndexLikePutDirect);
  54         rawObject->putDirectIndex(exec, index, jsString(exec, templateKey.rawStrings()[index]), ReadOnly | DontDelete, PutDirectIndexLikePutDirect);
  55     }
  56
  57     objectConstructorFreeze(exec, rawObject);
  58     ASSERT(!exec->hadException());
  59
  60     templateObject->putDirect(exec->vm(), exec->propertyNames().raw, rawObject, ReadOnly | DontEnum | DontDelete);
  61
  62     objectConstructorFreeze(exec, templateObject);
  63     ASSERT(!exec->hadException());
  64
  65     m_templateMap.set(templateKey, templateObject);
  66
  67     return templateObject;
  68 }
  69
  70
  71 } // namespace JSC