Changeset 10076 in webkit for trunk/JavaScriptCore/kjs/nodes.cpp


Ignore:
Timestamp:
Aug 6, 2005, 11:17:49 PM (20 years ago)
Author:
mjs
Message:

JavaScriptCore:

Reviewed by Darin.

Change over to the new PropertySlot mechanism for property
lookup. This allows the elimination of hasOwnProperty
methods. Also did some of the performance tuning enabled by this
(but not yet all the possible improvements for function calls,
assignment, ++, and so forth). And also much code cleanup.

Net result is about a 2% speedup on the JS iBench.

Also redid Geoff's fix for the chrashing applet by avoiding a NULL
prototype in the bindings code and using the default of Null()
instead.

  • JavaScriptCore.xcodeproj/project.pbxproj:
  • bindings/objc/objc_runtime.h:
  • bindings/objc/objc_runtime.mm: (ObjcFallbackObjectImp::ObjcFallbackObjectImp): (ObjcFallbackObjectImp::getOwnPropertySlot):
  • bindings/runtime_array.cpp: (RuntimeArrayImp::lengthGetter): (RuntimeArrayImp::indexGetter): (RuntimeArrayImp::getOwnPropertySlot):
  • bindings/runtime_array.h:
  • bindings/runtime_method.cpp: (RuntimeMethodImp::lengthGetter): (RuntimeMethodImp::getOwnPropertySlot):
  • bindings/runtime_method.h:
  • bindings/runtime_object.cpp: (RuntimeObjectImp::RuntimeObjectImp): (RuntimeObjectImp::fallbackObjectGetter): (RuntimeObjectImp::fieldGetter): (RuntimeObjectImp::methodGetter): (RuntimeObjectImp::getOwnPropertySlot):
  • bindings/runtime_object.h:
  • bindings/runtime_root.h:
  • kjs/array_instance.h:
  • kjs/array_object.cpp: (ArrayInstanceImp::lengthGetter): (ArrayInstanceImp::getOwnPropertySlot): (ArrayPrototypeImp::getOwnPropertySlot):
  • kjs/array_object.h:
  • kjs/date_object.cpp: (DatePrototypeImp::getOwnPropertySlot):
  • kjs/date_object.h:
  • kjs/function.cpp: (KJS::FunctionImp::argumentsGetter): (KJS::FunctionImp::lengthGetter): (KJS::FunctionImp::getOwnPropertySlot): (KJS::FunctionImp::put): (KJS::FunctionImp::deleteProperty): (KJS::ArgumentsImp::mappedIndexGetter): (KJS::ArgumentsImp::getOwnPropertySlot): (KJS::ActivationImp::argumentsGetter): (KJS::ActivationImp::getArgumentsGetter): (KJS::ActivationImp::getOwnPropertySlot): (KJS::ActivationImp::deleteProperty):
  • kjs/function.h:
  • kjs/internal.cpp: (InterpreterImp::InterpreterImp): (InterpreterImp::initGlobalObject): (InterpreterImp::~InterpreterImp): (InterpreterImp::evaluate):
  • kjs/internal.h: (KJS::InterpreterImp::globalExec):
  • kjs/interpreter.cpp: (Interpreter::Interpreter): (Interpreter::createLanguageInstanceForValue):
  • kjs/interpreter.h: (KJS::Interpreter::argumentsIdentifier): (KJS::Interpreter::specialPrototypeIdentifier):
  • kjs/lookup.h: (KJS::staticFunctionGetter): (KJS::staticValueGetter): (KJS::getStaticPropertySlot): (KJS::getStaticFunctionSlot): (KJS::getStaticValueSlot):
  • kjs/math_object.cpp: (MathObjectImp::getOwnPropertySlot):
  • kjs/math_object.h:
  • kjs/nodes.cpp: (ResolveNode::evaluate): (ResolveNode::evaluateReference): (AccessorNode1::evaluate): (AccessorNode2::evaluate):
  • kjs/number_object.cpp: (NumberObjectImp::getOwnPropertySlot):
  • kjs/number_object.h:
  • kjs/object.cpp: (KJS::ObjectImp::get): (KJS::ObjectImp::getProperty): (KJS::ObjectImp::getPropertySlot): (KJS::ObjectImp::getOwnPropertySlot): (KJS::ObjectImp::put): (KJS::ObjectImp::hasProperty): (KJS::ObjectImp::hasOwnProperty):
  • kjs/object.h: (KJS::ObjectImp::getDirectLocation): (KJS::ObjectImp::getPropertySlot): (KJS::ObjectImp::getOwnPropertySlot):
  • kjs/object_wrapper.h: Added. (KJS::): (KJS::Object::Object): (KJS::Object::operator ObjectImp *):
  • kjs/property_map.cpp: (KJS::PropertyMap::getLocation):
  • kjs/property_map.h:
  • kjs/property_slot.cpp: Added. (KJS::PropertySlot::undefinedGetter):
  • kjs/property_slot.h: Added. (KJS::PropertySlot::isSet): (KJS::PropertySlot::getValue): (KJS::PropertySlot::setValueSlot): (KJS::PropertySlot::setStaticEntry): (KJS::PropertySlot::setCustom): (KJS::PropertySlot::setCustomIndex): (KJS::PropertySlot::setUndefined): (KJS::PropertySlot::slotBase): (KJS::PropertySlot::staticEntry): (KJS::PropertySlot::index): (KJS::PropertySlot::):
  • kjs/protect.h:
  • kjs/protected_object.h: Added. (KJS::ProtectedObject::ProtectedObject): (KJS::ProtectedObject::~ProtectedObject): (KJS::ProtectedObject::operator=): (KJS::ProtectedReference::ProtectedReference): (KJS::ProtectedReference::~ProtectedReference): (KJS::ProtectedReference::operator=):
  • kjs/reference.h:
  • kjs/reference_list.cpp:
  • kjs/regexp_object.cpp: (RegExpObjectImp::backrefGetter): (RegExpObjectImp::getOwnPropertySlot):
  • kjs/regexp_object.h:
  • kjs/string_object.cpp: (StringInstanceImp::lengthGetter): (StringInstanceImp::indexGetter): (StringInstanceImp::getOwnPropertySlot): (StringPrototypeImp::getOwnPropertySlot):
  • kjs/string_object.h:

WebCore:

Reviewed by Darin.

Change over to the new PropertySlot mechanism for property
lookup. This allows the elimination of hasOwnProperty methods. I
also did a bunch of code cleanup and regularization of the various
property lookup methods.

Test cases added: Added a test case for a bug I found along the way.

  • layout-tests/fast/js/string-index-overflow.html:
  • layout-tests/fast/js/string-index-overflow-expected.txt:
  • khtml/ecma/kjs_binding.cpp: (KJS::ScriptInterpreter::createLanguageInstanceForValue):
  • khtml/ecma/kjs_binding.h:
  • khtml/ecma/kjs_css.cpp: (KJS::DOMCSSStyleDeclaration::indexGetter): (KJS::DOMCSSStyleDeclaration::cssPropertyGetter): (KJS::DOMCSSStyleDeclaration::getOwnPropertySlot): (KJS::DOMCSSStyleDeclaration::getValueProperty): (KJS::DOMStyleSheet::getOwnPropertySlot): (KJS::DOMStyleSheetList::getValueProperty): (KJS::DOMStyleSheetList::indexGetter): (KJS::DOMStyleSheetList::nameGetter): (KJS::DOMStyleSheetList::getOwnPropertySlot): (KJS::DOMMediaList::getValueProperty): (KJS::DOMMediaList::indexGetter): (KJS::DOMMediaList::getOwnPropertySlot): (KJS::DOMCSSStyleSheet::getValueProperty): (KJS::DOMCSSStyleSheet::getOwnPropertySlot): (KJS::DOMCSSRuleList::getValueProperty): (KJS::DOMCSSRuleList::indexGetter): (KJS::DOMCSSRuleList::getOwnPropertySlot): (KJS::DOMCSSRule::getOwnPropertySlot): (KJS::CSSRuleConstructor::getOwnPropertySlot): (KJS::DOMCSSValue::getValueProperty): (KJS::DOMCSSValue::getOwnPropertySlot): (KJS::CSSValueConstructor::getOwnPropertySlot): (KJS::DOMCSSPrimitiveValue::getValueProperty): (KJS::DOMCSSPrimitiveValue::getOwnPropertySlot): (KJS::CSSPrimitiveValueConstructor::getOwnPropertySlot): (KJS::DOMCSSValueList::getValueProperty): (KJS::DOMCSSValueList::indexGetter): (KJS::DOMCSSValueList::getOwnPropertySlot): (KJS::DOMRGBColor::getOwnPropertySlot): (KJS::DOMRect::getOwnPropertySlot): (KJS::DOMCounter::getOwnPropertySlot):
  • khtml/ecma/kjs_css.h: (KJS::DOMCSSStyleDeclaration::): (KJS::DOMCSSStyleSheet::): (KJS::DOMCSSRule::): (KJS::DOMCSSValueList::):
  • khtml/ecma/kjs_dom.cpp: (KJS::DOMNode::getOwnPropertySlot): (KJS::): (KJS::DOMNodeList::getValueProperty): (KJS::DOMNodeList::indexGetter): (KJS::DOMNodeList::nameGetter): (KJS::DOMNodeList::getOwnPropertySlot): (KJS::DOMNodeList::call): (KJS::DOMAttr::getOwnPropertySlot): (KJS::DOMDocument::getOwnPropertySlot): (KJS::DOMElement::getValueProperty): (KJS::DOMElement::attributeGetter): (KJS::DOMElement::getOwnPropertySlot): (KJS::DOMDocumentType::getOwnPropertySlot): (KJS::DOMNamedNodeMap::lengthGetter): (KJS::DOMNamedNodeMap::indexGetter): (KJS::DOMNamedNodeMap::getOwnPropertySlot): (KJS::DOMProcessingInstruction::getOwnPropertySlot): (KJS::DOMNotation::getOwnPropertySlot): (KJS::DOMEntity::getOwnPropertySlot): (KJS::NodeConstructor::getOwnPropertySlot): (KJS::DOMExceptionConstructor::getOwnPropertySlot): (KJS::DOMNamedNodesCollection::lengthGetter): (KJS::DOMNamedNodesCollection::indexGetter): (KJS::DOMNamedNodesCollection::getOwnPropertySlot): (KJS::DOMCharacterData::getOwnPropertySlot):
  • khtml/ecma/kjs_dom.h:
  • khtml/ecma/kjs_events.cpp: (KJS::EventConstructor::getOwnPropertySlot): (KJS::DOMEvent::getOwnPropertySlot): (KJS::EventExceptionConstructor::getOwnPropertySlot): (KJS::DOMUIEvent::getOwnPropertySlot): (KJS::DOMMouseEvent::getOwnPropertySlot): (KJS::DOMKeyboardEvent::getOwnPropertySlot): (KJS::MutationEventConstructor::getOwnPropertySlot): (KJS::DOMMutationEvent::getOwnPropertySlot): (KJS::DOMWheelEvent::getOwnPropertySlot): (KJS::Clipboard::getOwnPropertySlot):
  • khtml/ecma/kjs_events.h:
  • khtml/ecma/kjs_html.cpp: (KJS::HTMLDocument::namedItemGetter): (KJS::HTMLDocument::getValueProperty): (KJS::HTMLDocument::getOwnPropertySlot): (KJS::HTMLElement::formIndexGetter): (KJS::HTMLElement::formNameGetter): (KJS::HTMLElement::selectIndexGetter): (KJS::HTMLElement::framesetNameGetter): (KJS::HTMLElement::frameWindowPropertyGetter): (KJS::HTMLElement::runtimeObjectGetter): (KJS::HTMLElement::runtimeObjectPropertyGetter): (KJS::HTMLElement::getOwnPropertySlot): (KJS::HTMLCollection::lengthGetter): (KJS::HTMLCollection::indexGetter): (KJS::HTMLCollection::nameGetter): (KJS::HTMLCollection::getOwnPropertySlot): (KJS::HTMLSelectCollection::selectedIndexGetter): (KJS::HTMLSelectCollection::getOwnPropertySlot): (KJS::Image::getOwnPropertySlot): (KJS::Context2D::getOwnPropertySlot): (KJS::Gradient::getOwnPropertySlot): (KJS::ImagePattern::getOwnPropertySlot):
  • khtml/ecma/kjs_html.h: (KJS::HTMLCollection::toBoolean):
  • khtml/ecma/kjs_navigator.cpp: (KJS::Plugins::): (KJS::MimeTypes::): (KJS::Plugin::): (KJS::MimeType::): (KJS::): (KJS::Navigator::getOwnPropertySlot): (KJS::Plugins::getValueProperty): (KJS::Plugins::indexGetter): (KJS::Plugins::nameGetter): (KJS::Plugins::getOwnPropertySlot): (KJS::MimeTypes::getValueProperty): (KJS::MimeTypes::indexGetter): (KJS::MimeTypes::nameGetter): (KJS::MimeTypes::getOwnPropertySlot): (KJS::Plugin::getValueProperty): (KJS::Plugin::indexGetter): (KJS::Plugin::nameGetter): (KJS::Plugin::getOwnPropertySlot): (KJS::MimeType::getValueProperty): (KJS::MimeType::getOwnPropertySlot):
  • khtml/ecma/kjs_navigator.h:
  • khtml/ecma/kjs_range.cpp: (KJS::DOMRange::getOwnPropertySlot): (KJS::RangeConstructor::getOwnPropertySlot):
  • khtml/ecma/kjs_range.h:
  • khtml/ecma/kjs_traversal.cpp: (KJS::DOMNodeIterator::getOwnPropertySlot): (KJS::NodeFilterConstructor::getOwnPropertySlot): (KJS::DOMTreeWalker::getOwnPropertySlot):
  • khtml/ecma/kjs_traversal.h:
  • khtml/ecma/kjs_views.cpp: (KJS::DOMAbstractView::~DOMAbstractView): (KJS::DOMAbstractView::getValueProperty): (KJS::DOMAbstractView::getOwnPropertySlot):
  • khtml/ecma/kjs_views.h:
  • khtml/ecma/kjs_window.cpp: (KJS::FrameArray::): (KJS::FrameArray::classInfo): (KJS::Screen::getOwnPropertySlot): (KJS::Window::getValueProperty): (KJS::Window::childFrameGetter): (KJS::Window::namedFrameGetter): (KJS::Window::indexGetter): (KJS::Window::namedItemGetter): (KJS::Window::getOwnPropertySlot): (KJS::): (KJS::FrameArray::getValueProperty): (KJS::FrameArray::indexGetter): (KJS::FrameArray::nameGetter): (KJS::FrameArray::getOwnPropertySlot): (KJS::Location::getValueProperty): (KJS::Location::getOwnPropertySlot): (KJS::Selection::getValueProperty): (KJS::Selection::getOwnPropertySlot): (KJS::BarInfo::getValueProperty): (KJS::BarInfo::getOwnPropertySlot): (KJS::History::getOwnPropertySlot):
  • khtml/ecma/kjs_window.h:
  • khtml/ecma/xmlhttprequest.cpp: (KJS::XMLHttpRequest::getOwnPropertySlot):
  • khtml/ecma/xmlhttprequest.h:
File:
1 edited

Legend:

Unmodified
Added
Removed

  • trunk/JavaScriptCore/kjs/nodes.cpp

    r9929 r10076  
    278278  ScopeChain chain = exec->context().imp()->scopeChain();
    279279
    280   Value result;
    281   while (!chain.isEmpty()) {
     280  assert(!chain.isEmpty());
     281
     282  PropertySlot slot;
     283  do {
    282284    ObjectImp *o = chain.top();
    283 
    284     if (o->getProperty(exec, ident, result))
    285       return result;
     285    if (o->getPropertySlot(exec, ident, slot))
     286      return slot.getValue(exec, ident);
    286287   
    287288    chain.pop();
    288   }
    289 
    290   UString m = I18N_NOOP("Can't find variable: ") + ident.ustring();
    291   Object err = Error::create(exec, ReferenceError, m.ascii());
    292   exec->setException(err);
    293   return err;
     289  } while (!chain.isEmpty());
     290
     291  return Reference(Null(), ident).getValue(exec);
    294292}
    295293
    … …  
    298296  ScopeChain chain = exec->context().imp()->scopeChain();
    299297
    300   while (!chain.isEmpty()) {
     298  assert(!chain.isEmpty());
     299
     300  PropertySlot slot;
     301  do {
    301302    ObjectImp *o = chain.top();
    302 
    303     //cout << "Resolve: looking at '" << ident.ascii() << "'"
    304     //     << " in " << (void*)o << " " << o->classInfo()->className << endl;
    305     if (o->hasProperty(exec,ident)) {
    306       //cout << "Resolve: FOUND '" << ident.ascii() << "'"
    307       //     << " in " << (void*)o << " " << o->classInfo()->className << endl;
     303    if (o->getPropertySlot(exec, ident, slot))
    308304      return Reference(o, ident);
    309     }
    310305   
    311306    chain.pop();
    312   }
    313 
    314   // identifier not found
    315   //cout << "Resolve: didn't find '" << ident.ascii() << "'" << endl;
     307  } while (!chain.isEmpty());
     308
    316309  return Reference(Null(), ident);
    317310}
    … …  
    530523Value AccessorNode1::evaluate(ExecState *exec)
    531524{
    532   return evaluateReference(exec).getValue(exec);
     525  Value v1 = expr1->evaluate(exec);
     526  KJS_CHECKEXCEPTIONVALUE
     527  Value v2 = expr2->evaluate(exec);
     528  KJS_CHECKEXCEPTIONVALUE
     529  Object o = v1.toObject(exec);
     530  unsigned i;
     531  if (v2.toUInt32(i))
     532    return o.get(exec, i);
     533
     534  String s = v2.toString(exec);
     535  return o.get(exec, Identifier(s.value()));
    533536}
    534537
    … …  
    567570Value AccessorNode2::evaluate(ExecState *exec)
    568571{
    569   return evaluateReference(exec).getValue(exec);
     572  Value v = expr->evaluate(exec);
     573  KJS_CHECKEXCEPTIONVALUE
     574  Object o = v.toObject(exec);
     575  return o.get(exec, ident);
     576
    570577}
    571578
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