WebKit之CodeGenerate-JS的perl脚本的分析和学习
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## perl脚本的学习
package CodeGeneratorJS;my $module = "";my $outputDir = "";my $writeDependencies = 0;my @headerContentHeader = ();my @headerContent = ();my %headerIncludes = ();my %headerTrailingIncludes = ();my @implContentHeader = ();my @implContent = ();my %implIncludes = ();my @depsContent = ();my $numCachedAttributes = 0;my $currentCachedAttribute = 0;# Default .h templatemy $headerTemplate = << "EOF";/* This file is part of the WebKit open source project. This file has been generated by generate-bindings.pl. DO NOT MODIFY! This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.*/EOF# Default constructorsub new{ my $object = shift; my $reference = { }; $codeGenerator = shift; $outputDir = shift; shift; # $outputHeadersDir shift; # $useLayerOnTop shift; # $preprocessor $writeDependencies = shift; bless($reference, $object); return $reference;}sub finish{ my $object = shift; # Commit changes! $object->WriteData();}sub leftShift($$) { my ($value, $distance) = @_; return (($value << $distance) & 0xFFFFFFFF);}# Params: 'domClass' structsub GenerateInterface{ my $object = shift; my $dataNode = shift; my $defines = shift; $codeGenerator->LinkOverloadedFunctions($dataNode); # Start actual generation if ($dataNode->extendedAttributes->{"Callback"}) { $object->GenerateCallbackHeader($dataNode); $object->GenerateCallbackImplementation($dataNode); } else { $object->GenerateHeader($dataNode); $object->GenerateImplementation($dataNode); } my $name = $dataNode->name; # Open files for writing my $headerFileName = "$outputDir/JS$name.h"; my $implFileName = "$outputDir/JS$name.cpp"; my $depsFileName = "$outputDir/JS$name.dep"; # Remove old dependency file. unlink($depsFileName); open($IMPL, ">$implFileName") || die "Couldn't open file $implFileName"; open($HEADER, ">$headerFileName") || die "Couldn't open file $headerFileName"; if (@depsContent) { open($DEPS, ">$depsFileName") || die "Couldn't open file $depsFileName"; }}sub GenerateAttributeEventListenerCall{ my $className = shift; my $implSetterFunctionName = shift; my $windowEventListener = shift; my $wrapperObject = $windowEventListener ? "globalObject" : "thisObject"; my @GenerateEventListenerImpl = (); if ($className eq "JSSVGElementInstance") { # SVGElementInstances have to create JSEventListeners with the wrapper equal to the correspondingElement $wrapperObject = "asObject(correspondingElementWrapper)"; push(@GenerateEventListenerImpl, <<END); JSValue correspondingElementWrapper = toJS(exec, castedThis->globalObject(), imp->correspondingElement()); if (correspondingElementWrapper.isObject())END # Add leading whitespace to format the imp->set... line correctly push(@GenerateEventListenerImpl, " "); } push(@GenerateEventListenerImpl, " imp->set$implSetterFunctionName(createJSAttributeEventListener(exec, value, $wrapperObject));\n"); return @GenerateEventListenerImpl;}sub GenerateEventListenerCall{ my $className = shift; my $functionName = shift; my $passRefPtrHandling = ($functionName eq "add") ? "" : ".get()"; $implIncludes{"JSEventListener.h"} = 1; my @GenerateEventListenerImpl = (); my $wrapperObject = "castedThis"; if ($className eq "JSSVGElementInstance") { # SVGElementInstances have to create JSEventListeners with the wrapper equal to the correspondingElement $wrapperObject = "asObject(correspondingElementWrapper)"; push(@GenerateEventListenerImpl, <<END); JSValue correspondingElementWrapper = toJS(exec, castedThis->globalObject(), imp->correspondingElement()); if (!correspondingElementWrapper.isObject()) return JSValue::encode(jsUndefined());END } push(@GenerateEventListenerImpl, <<END); JSValue listener = exec->argument(1); if (!listener.isObject()) return JSValue::encode(jsUndefined()); imp->${functionName}EventListener(ustringToAtomicString(exec->argument(0).toString(exec)), JSEventListener::create(asObject(listener), $wrapperObject, false, currentWorld(exec))$passRefPtrHandling, exec->argument(2).toBoolean(exec)); return JSValue::encode(jsUndefined());END return @GenerateEventListenerImpl;}# Params: 'idlDocument' structsub GenerateModule{ my $object = shift; my $dataNode = shift; $module = $dataNode->module;}sub GetParentClassName{ my $dataNode = shift; return $dataNode->extendedAttributes->{"LegacyParent"} if $dataNode->extendedAttributes->{"LegacyParent"}; return "JSDOMWrapper" if (@{$dataNode->parents} eq 0); return "JS" . $codeGenerator->StripModule($dataNode->parents(0));}sub GetVisibleClassName{ my $className = shift; return "DOMException" if $className eq "DOMCoreException"; return "FormData" if $className eq "DOMFormData"; return "MimeType" if $className eq "DOMMimeType"; return "MimeTypeArray" if $className eq "DOMMimeTypeArray"; return "Plugin" if $className eq "DOMPlugin"; return "PluginArray" if $className eq "DOMPluginArray"; return $className;}sub GetCallbackClassName{ my $className = shift; return "JSCustomVoidCallback" if $className eq "VoidCallback"; return "JS$className";}sub IndexGetterReturnsStrings{ my $type = shift; return 1 if $type eq "CSSStyleDeclaration" or $type eq "MediaList" or $type eq "DOMStringList" or $type eq "DOMTokenList" or $type eq "DOMSettableTokenList"; return 0;}sub AddIncludesForType{ my $type = $codeGenerator->StripModule(shift); my $isCallback = @_ ? shift : 0; # When we're finished with the one-file-per-class # reorganization, we won't need these special cases. if ($codeGenerator->IsPrimitiveType($type) or $codeGenerator->AvoidInclusionOfType($type) or $type eq "DOMString" or $type eq "DOMObject" or $type eq "Array") { } elsif ($type =~ /SVGPathSeg/) { $joinedName = $type; $joinedName =~ s/Abs|Rel//; $implIncludes{"${joinedName}.h"} = 1; } elsif ($type eq "XPathNSResolver") { $implIncludes{"JSXPathNSResolver.h"} = 1; $implIncludes{"JSCustomXPathNSResolver.h"} = 1; } elsif ($isCallback) { $implIncludes{"JS${type}.h"} = 1; } else { # default, include the same named file $implIncludes{"${type}.h"} = 1; } # additional includes (things needed to compile the bindings but not the header) if ($type eq "CanvasRenderingContext2D") { $implIncludes{"CanvasGradient.h"} = 1; $implIncludes{"CanvasPattern.h"} = 1; $implIncludes{"CanvasStyle.h"} = 1; } if ($type eq "CanvasGradient" or $type eq "XPathNSResolver" or $type eq "MessagePort") { $implIncludes{"PlatformString.h"} = 1; } if ($type eq "Document") { $implIncludes{"NodeFilter.h"} = 1; } if ($type eq "MediaQueryListListener") { $implIncludes{"MediaQueryListListener.h"} = 1; }}# FIXME: This method will go away once all SVG animated properties are converted to the new scheme.sub AddIncludesForSVGAnimatedType{ my $type = shift; $type =~ s/SVGAnimated//; if ($type eq "Point" or $type eq "Rect") { $implIncludes{"Float$type.h"} = 1; } elsif ($type eq "String") { $implIncludes{"PlatformString.h"} = 1; }}sub IsScriptProfileType{ my $type = shift; return 1 if ($type eq "ScriptProfileNode"); return 0;}sub AddTypedefForScriptProfileType{ my $type = shift; (my $jscType = $type) =~ s/Script//; push(@headerContent, "typedef JSC::$jscType $type;\n\n");}sub AddClassForwardIfNeeded{ my $implClassName = shift; # SVGAnimatedLength/Number/etc. are typedefs to SVGAnimatedTemplate, so don't use class forwards for them! unless ($codeGenerator->IsSVGAnimatedType($implClassName) or IsScriptProfileType($implClassName)) { push(@headerContent, "class $implClassName;\n\n"); # ScriptProfile and ScriptProfileNode are typedefs to JSC::Profile and JSC::ProfileNode. } elsif (IsScriptProfileType($implClassName)) { AddTypedefForScriptProfileType($implClassName); }}sub HashValueForClassAndName{ my $class = shift; my $name = shift; # SVG Filter enums live in WebCore namespace (platform/graphics/) if ($class =~ /^SVGFE*/ or $class =~ /^SVGComponentTransferFunctionElement$/) { return "WebCore::$name"; } return "${class}::$name";}sub hashTableAccessor{ my $noStaticTables = shift; my $className = shift; if ($noStaticTables) { return "get${className}Table(exec)"; } else { return "&${className}Table"; }}sub prototypeHashTableAccessor{ my $noStaticTables = shift; my $className = shift; if ($noStaticTables) { return "get${className}PrototypeTable(exec)"; } else { return "&${className}PrototypeTable"; }}sub GenerateConditionalStringFromAttributeValue{ my $conditional = shift; if ($conditional =~ /&/) { return "ENABLE(" . join(") && ENABLE(", split(/&/, $conditional)) . ")"; } elsif ($conditional =~ /\|/) { return "ENABLE(" . join(") || ENABLE(", split(/\|/, $conditional)) . ")"; } else { return "ENABLE(" . $conditional . ")"; }}sub GenerateConditionalString{ my $node = shift; my $conditional = $node->extendedAttributes->{"Conditional"}; if ($conditional) { return GenerateConditionalStringFromAttributeValue($conditional); } else { return ""; }}sub GenerateGetOwnPropertySlotBody{ my ($dataNode, $interfaceName, $className, $implClassName, $hasAttributes, $inlined) = @_; my $namespaceMaybe = ($inlined ? "JSC::" : ""); my @getOwnPropertySlotImpl = (); if ($interfaceName eq "NamedNodeMap" or $interfaceName eq "HTMLCollection" or $interfaceName eq "HTMLAllCollection") { push(@getOwnPropertySlotImpl, " ${namespaceMaybe}JSValue proto = prototype();\n"); push(@getOwnPropertySlotImpl, " if (proto.isObject() && static_cast<${namespaceMaybe}JSObject*>(asObject(proto))->hasProperty(exec, propertyName))\n"); push(@getOwnPropertySlotImpl, " return false;\n\n"); } my $manualLookupGetterGeneration = sub { my $requiresManualLookup = $dataNode->extendedAttributes->{"HasIndexGetter"} || $dataNode->extendedAttributes->{"HasNameGetter"}; if ($requiresManualLookup) { push(@getOwnPropertySlotImpl, " const ${namespaceMaybe}HashEntry* entry = ${className}Table.entry(exec, propertyName);\n"); push(@getOwnPropertySlotImpl, " if (entry) {\n"); push(@getOwnPropertySlotImpl, " slot.setCustom(this, entry->propertyGetter());\n"); push(@getOwnPropertySlotImpl, " return true;\n"); push(@getOwnPropertySlotImpl, " }\n"); } }; if (!$dataNode->extendedAttributes->{"HasOverridingNameGetter"}) { &$manualLookupGetterGeneration(); } if ($dataNode->extendedAttributes->{"HasIndexGetter"} || $dataNode->extendedAttributes->{"HasCustomIndexGetter"} || $dataNode->extendedAttributes->{"HasNumericIndexGetter"}) { push(@getOwnPropertySlotImpl, " bool ok;\n"); push(@getOwnPropertySlotImpl, " unsigned index = propertyName.toUInt32(ok);\n"); # If the item function returns a string then we let the ConvertNullStringTo handle the cases # where the index is out of range. if (IndexGetterReturnsStrings($implClassName)) { push(@getOwnPropertySlotImpl, " if (ok) {\n"); } else { push(@getOwnPropertySlotImpl, " if (ok && index < static_cast<$implClassName*>(impl())->length()) {\n"); } if ($dataNode->extendedAttributes->{"HasCustomIndexGetter"} || $dataNode->extendedAttributes->{"HasNumericIndexGetter"}) { push(@getOwnPropertySlotImpl, " slot.setValue(getByIndex(exec, index));\n"); } else { push(@getOwnPropertySlotImpl, " slot.setCustomIndex(this, index, indexGetter);\n"); } push(@getOwnPropertySlotImpl, " return true;\n"); push(@getOwnPropertySlotImpl, " }\n"); } if ($dataNode->extendedAttributes->{"HasNameGetter"} || $dataNode->extendedAttributes->{"HasOverridingNameGetter"}) { push(@getOwnPropertySlotImpl, " if (canGetItemsForName(exec, static_cast<$implClassName*>(impl()), propertyName)) {\n"); push(@getOwnPropertySlotImpl, " slot.setCustom(this, nameGetter);\n"); push(@getOwnPropertySlotImpl, " return true;\n"); push(@getOwnPropertySlotImpl, " }\n"); if ($inlined) { $headerIncludes{"wtf/text/AtomicString.h"} = 1; } else { $implIncludes{"wtf/text/AtomicString.h"} = 1; } } if ($dataNode->extendedAttributes->{"HasOverridingNameGetter"}) { &$manualLookupGetterGeneration(); } if ($dataNode->extendedAttributes->{"DelegatingGetOwnPropertySlot"}) { push(@getOwnPropertySlotImpl, " if (getOwnPropertySlotDelegate(exec, propertyName, slot))\n"); push(@getOwnPropertySlotImpl, " return true;\n"); } if ($hasAttributes) { if ($inlined) { die "Cannot inline if NoStaticTables is set." if ($dataNode->extendedAttributes->{"NoStaticTables"}); push(@getOwnPropertySlotImpl, " return ${namespaceMaybe}getStaticValueSlot<$className, Base>(exec, s_info.staticPropHashTable, this, propertyName, slot);\n"); } else { push(@getOwnPropertySlotImpl, " return ${namespaceMaybe}getStaticValueSlot<$className, Base>(exec, " . hashTableAccessor($dataNode->extendedAttributes->{"NoStaticTables"}, $className) . ", this, propertyName, slot);\n"); } } else { push(@getOwnPropertySlotImpl, " return Base::getOwnPropertySlot(exec, propertyName, slot);\n"); } return @getOwnPropertySlotImpl;}sub GenerateGetOwnPropertyDescriptorBody{ my ($dataNode, $interfaceName, $className, $implClassName, $hasAttributes, $inlined) = @_; my $namespaceMaybe = ($inlined ? "JSC::" : ""); my @getOwnPropertyDescriptorImpl = (); if ($dataNode->extendedAttributes->{"CheckDomainSecurity"}) { if ($interfaceName eq "DOMWindow") { push(@implContent, " if (!static_cast<$className*>(thisObject)->allowsAccessFrom(exec))\n"); } else { push(@implContent, " if (!allowsAccessFromFrame(exec, static_cast<$className*>(thisObject)->impl()->frame()))\n"); } push(@implContent, " return false;\n"); } if ($interfaceName eq "NamedNodeMap" or $interfaceName eq "HTMLCollection" or $interfaceName eq "HTMLAllCollection") { push(@getOwnPropertyDescriptorImpl, " ${namespaceMaybe}JSValue proto = prototype();\n"); push(@getOwnPropertyDescriptorImpl, " if (proto.isObject() && static_cast<${namespaceMaybe}JSObject*>(asObject(proto))->hasProperty(exec, propertyName))\n"); push(@getOwnPropertyDescriptorImpl, " return false;\n\n"); } my $manualLookupGetterGeneration = sub { my $requiresManualLookup = $dataNode->extendedAttributes->{"HasIndexGetter"} || $dataNode->extendedAttributes->{"HasNameGetter"}; if ($requiresManualLookup) { push(@getOwnPropertyDescriptorImpl, " const ${namespaceMaybe}HashEntry* entry = ${className}Table.entry(exec, propertyName);\n"); push(@getOwnPropertyDescriptorImpl, " if (entry) {\n"); push(@getOwnPropertyDescriptorImpl, " PropertySlot slot;\n"); push(@getOwnPropertyDescriptorImpl, " slot.setCustom(this, entry->propertyGetter());\n"); push(@getOwnPropertyDescriptorImpl, " descriptor.setDescriptor(slot.getValue(exec, propertyName), entry->attributes());\n"); push(@getOwnPropertyDescriptorImpl, " return true;\n"); push(@getOwnPropertyDescriptorImpl, " }\n"); } }; if (!$dataNode->extendedAttributes->{"HasOverridingNameGetter"}) { &$manualLookupGetterGeneration(); } if ($dataNode->extendedAttributes->{"HasIndexGetter"} || $dataNode->extendedAttributes->{"HasCustomIndexGetter"} || $dataNode->extendedAttributes->{"HasNumericIndexGetter"}) { push(@getOwnPropertyDescriptorImpl, " bool ok;\n"); push(@getOwnPropertyDescriptorImpl, " unsigned index = propertyName.toUInt32(ok);\n"); push(@getOwnPropertyDescriptorImpl, " if (ok && index < static_cast<$implClassName*>(impl())->length()) {\n"); if ($dataNode->extendedAttributes->{"HasCustomIndexGetter"} || $dataNode->extendedAttributes->{"HasNumericIndexGetter"}) { # Assume that if there's a setter, the index will be writable if ($dataNode->extendedAttributes->{"HasIndexSetter"} || $dataNode->extendedAttributes->{"HasCustomIndexSetter"}) { push(@getOwnPropertyDescriptorImpl, " descriptor.setDescriptor(getByIndex(exec, index), ${namespaceMaybe}DontDelete);\n"); } else { push(@getOwnPropertyDescriptorImpl, " descriptor.setDescriptor(getByIndex(exec, index), ${namespaceMaybe}DontDelete | ${namespaceMaybe}ReadOnly);\n"); } } else { push(@getOwnPropertyDescriptorImpl, " ${namespaceMaybe}PropertySlot slot;\n"); push(@getOwnPropertyDescriptorImpl, " slot.setCustomIndex(this, index, indexGetter);\n"); # Assume that if there's a setter, the index will be writable if ($dataNode->extendedAttributes->{"HasIndexSetter"} || $dataNode->extendedAttributes->{"HasCustomIndexSetter"}) { push(@getOwnPropertyDescriptorImpl, " descriptor.setDescriptor(slot.getValue(exec, propertyName), ${namespaceMaybe}DontDelete);\n"); } else { push(@getOwnPropertyDescriptorImpl, " descriptor.setDescriptor(slot.getValue(exec, propertyName), ${namespaceMaybe}DontDelete | ${namespaceMaybe}ReadOnly);\n"); } } push(@getOwnPropertyDescriptorImpl, " return true;\n"); push(@getOwnPropertyDescriptorImpl, " }\n"); } if ($dataNode->extendedAttributes->{"HasNameGetter"} || $dataNode->extendedAttributes->{"HasOverridingNameGetter"}) { push(@getOwnPropertyDescriptorImpl, " if (canGetItemsForName(exec, static_cast<$implClassName*>(impl()), propertyName)) {\n"); push(@getOwnPropertyDescriptorImpl, " ${namespaceMaybe}PropertySlot slot;\n"); push(@getOwnPropertyDescriptorImpl, " slot.setCustom(this, nameGetter);\n"); push(@getOwnPropertyDescriptorImpl, " descriptor.setDescriptor(slot.getValue(exec, propertyName), ReadOnly | DontDelete | DontEnum);\n"); push(@getOwnPropertyDescriptorImpl, " return true;\n"); push(@getOwnPropertyDescriptorImpl, " }\n"); if ($inlined) { $headerIncludes{"wtf/text/AtomicString.h"} = 1; } else { $implIncludes{"wtf/text/AtomicString.h"} = 1; } } if ($dataNode->extendedAttributes->{"HasOverridingNameGetter"}) { &$manualLookupGetterGeneration(); } if ($dataNode->extendedAttributes->{"DelegatingGetOwnPropertySlot"}) { push(@getOwnPropertyDescriptorImpl, " if (getOwnPropertyDescriptorDelegate(exec, propertyName, descriptor))\n"); push(@getOwnPropertyDescriptorImpl, " return true;\n"); } if ($hasAttributes) { if ($inlined) { die "Cannot inline if NoStaticTables is set." if ($dataNode->extendedAttributes->{"NoStaticTables"}); push(@getOwnPropertyDescriptorImpl, " return ${namespaceMaybe}getStaticValueDescriptor<$className, Base>(exec, s_info.staticPropHashTable, this, propertyName, descriptor);\n"); } else { push(@getOwnPropertyDescriptorImpl, " return ${namespaceMaybe}getStaticValueDescriptor<$className, Base>(exec, " . hashTableAccessor($dataNode->extendedAttributes->{"NoStaticTables"}, $className) . ", this, propertyName, descriptor);\n"); } } else { push(@getOwnPropertyDescriptorImpl, " return Base::getOwnPropertyDescriptor(exec, propertyName, descriptor);\n"); } return @getOwnPropertyDescriptorImpl;}sub GenerateHeaderContentHeader{ my $dataNode = shift; my $className = "JS" . $dataNode->name; my @headerContentHeader = split("\r", $headerTemplate); # - Add header protection push(@headerContentHeader, "\n#ifndef $className" . "_h"); push(@headerContentHeader, "\n#define $className" . "_h\n\n"); my $conditionalString = GenerateConditionalString($dataNode); push(@headerContentHeader, "#if ${conditionalString}\n\n") if $conditionalString; return @headerContentHeader;}sub GenerateImplementationContentHeader{ my $dataNode = shift; my $className = "JS" . $dataNode->name; my @implContentHeader = split("\r", $headerTemplate); push(@implContentHeader, "\n#include \"config.h\"\n"); my $conditionalString = GenerateConditionalString($dataNode); push(@implContentHeader, "\n#if ${conditionalString}\n\n") if $conditionalString; push(@implContentHeader, "#include \"$className.h\"\n\n"); return @implContentHeader;}my %usesToJSNewlyCreated = ( "CDATASection" => 1, "Element" => 1, "Node" => 1, "Text" => 1, "Touch" => 1, "TouchList" => 1);sub GenerateHeader{ my $object = shift; my $dataNode = shift; my $interfaceName = $dataNode->name; my $className = "JS$interfaceName"; my $implClassName = $interfaceName; my @ancestorInterfaceNames = (); my %structureFlags = (); # We only support multiple parents with SVG (for now). if (@{$dataNode->parents} > 1) { die "A class can't have more than one parent" unless $interfaceName =~ /SVG/; $codeGenerator->AddMethodsConstantsAndAttributesFromParentClasses($dataNode, \@ancestorInterfaceNames); } my $hasLegacyParent = $dataNode->extendedAttributes->{"LegacyParent"}; my $hasRealParent = @{$dataNode->parents} > 0; my $hasParent = $hasLegacyParent || $hasRealParent; my $parentClassName = GetParentClassName($dataNode); my $eventTarget = $dataNode->extendedAttributes->{"EventTarget"}; my $needsMarkChildren = $dataNode->extendedAttributes->{"CustomMarkFunction"} || $dataNode->extendedAttributes->{"EventTarget"}; # - Add default header template and header protection push(@headerContentHeader, GenerateHeaderContentHeader($dataNode)); if ($hasParent) { $headerIncludes{"$parentClassName.h"} = 1; } else { $headerIncludes{"JSDOMBinding.h"} = 1; $headerIncludes{"<runtime/JSGlobalObject.h>"} = 1; $headerIncludes{"<runtime/ObjectPrototype.h>"} = 1; } if ($dataNode->extendedAttributes->{"CustomCall"}) { $headerIncludes{"<runtime/CallData.h>"} = 1; } if ($dataNode->extendedAttributes->{"InlineGetOwnPropertySlot"}) { $headerIncludes{"<runtime/Lookup.h>"} = 1; $headerIncludes{"<wtf/AlwaysInline.h>"} = 1; } if ($hasParent && $dataNode->extendedAttributes->{"GenerateNativeConverter"}) { $headerIncludes{"$implClassName.h"} = 1; } $headerIncludes{"<runtime/JSObjectWithGlobalObject.h>"} = 1; $headerIncludes{"SVGElement.h"} = 1 if $className =~ /^JSSVG/; my $implType = $implClassName; my ($svgPropertyType, $svgListPropertyType, $svgNativeType) = GetSVGPropertyTypes($implType); $implType = $svgNativeType if $svgNativeType; my $svgPropertyOrListPropertyType; $svgPropertyOrListPropertyType = $svgPropertyType if $svgPropertyType; $svgPropertyOrListPropertyType = $svgListPropertyType if $svgListPropertyType; my $numConstants = @{$dataNode->constants}; my $numAttributes = @{$dataNode->attributes}; my $numFunctions = @{$dataNode->functions}; push(@headerContent, "\nnamespace WebCore {\n\n"); if ($codeGenerator->IsSVGAnimatedType($implClassName)) { $headerIncludes{"$implClassName.h"} = 1; } else { # Implementation class forward declaration AddClassForwardIfNeeded($implClassName) unless $svgPropertyOrListPropertyType; } AddClassForwardIfNeeded("JSDOMWindowShell") if $interfaceName eq "DOMWindow"; # Class declaration push(@headerContent, "class $className : public $parentClassName {\n"); push(@headerContent, " typedef $parentClassName Base;\n"); push(@headerContent, "public:\n"); # Constructor if ($interfaceName eq "DOMWindow") { push(@headerContent, " $className(JSC::JSGlobalData&, JSC::Structure*, PassRefPtr<$implType>, JSDOMWindowShell*);\n"); } elsif ($dataNode->extendedAttributes->{"IsWorkerContext"}) { push(@headerContent, " $className(JSC::JSGlobalData&, JSC::Structure*, PassRefPtr<$implType>);\n"); } else { push(@headerContent, " $className(JSC::Structure*, JSDOMGlobalObject*, PassRefPtr<$implType>);\n"); } # Prototype push(@headerContent, " static JSC::JSObject* createPrototype(JSC::ExecState*, JSC::JSGlobalObject*);\n") unless ($dataNode->extendedAttributes->{"ExtendsDOMGlobalObject"}); $headerTrailingIncludes{"${className}Custom.h"} = 1 if $dataNode->extendedAttributes->{"CustomHeader"}; $implIncludes{"${className}Custom.h"} = 1 if !$dataNode->extendedAttributes->{"CustomHeader"} && ($dataNode->extendedAttributes->{"CustomPutFunction"} || $dataNode->extendedAttributes->{"DelegatingPutFunction"}); my $hasGetter = $numAttributes > 0 || !($dataNode->extendedAttributes->{"OmitConstructor"} || $dataNode->extendedAttributes->{"CustomConstructor"}) || $dataNode->extendedAttributes->{"HasIndexGetter"} || $dataNode->extendedAttributes->{"HasCustomIndexGetter"} || $dataNode->extendedAttributes->{"HasNumericIndexGetter"} || $dataNode->extendedAttributes->{"CustomGetOwnPropertySlot"} || $dataNode->extendedAttributes->{"DelegatingGetOwnPropertySlot"} || $dataNode->extendedAttributes->{"HasNameGetter"} || $dataNode->extendedAttributes->{"HasOverridingNameGetter"}; # Getters if ($hasGetter) { push(@headerContent, " virtual bool getOwnPropertySlot(JSC::ExecState*, const JSC::Identifier& propertyName, JSC::PropertySlot&);\n"); push(@headerContent, " virtual bool getOwnPropertyDescriptor(JSC::ExecState*, const JSC::Identifier& propertyName, JSC::PropertyDescriptor&);\n"); push(@headerContent, " virtual bool getOwnPropertySlot(JSC::ExecState*, unsigned propertyName, JSC::PropertySlot&);\n") if ($dataNode->extendedAttributes->{"HasIndexGetter"} || $dataNode->extendedAttributes->{"HasCustomIndexGetter"} || $dataNode->extendedAttributes->{"HasNumericIndexGetter"}) && !$dataNode->extendedAttributes->{"HasOverridingNameGetter"}; push(@headerContent, " bool getOwnPropertySlotDelegate(JSC::ExecState*, const JSC::Identifier&, JSC::PropertySlot&);\n") if $dataNode->extendedAttributes->{"DelegatingGetOwnPropertySlot"}; push(@headerContent, " bool getOwnPropertyDescriptorDelegate(JSC::ExecState*, const JSC::Identifier&, JSC::PropertyDescriptor&);\n") if $dataNode->extendedAttributes->{"DelegatingGetOwnPropertySlot"}; $structureFlags{"JSC::OverridesGetOwnPropertySlot"} = 1; } # Check if we have any writable properties my $hasReadWriteProperties = 0; foreach (@{$dataNode->attributes}) { if ($_->type !~ /^readonly\ attribute$/) { $hasReadWriteProperties = 1; } } my $hasSetter = $hasReadWriteProperties || $dataNode->extendedAttributes->{"CustomPutFunction"} || $dataNode->extendedAttributes->{"DelegatingPutFunction"} || $dataNode->extendedAttributes->{"HasCustomIndexSetter"}; # Getters if ($hasSetter) { push(@headerContent, " virtual void put(JSC::ExecState*, const JSC::Identifier& propertyName, JSC::JSValue, JSC::PutPropertySlot&);\n"); push(@headerContent, " virtual void put(JSC::ExecState*, unsigned propertyName, JSC::JSValue);\n") if $dataNode->extendedAttributes->{"HasCustomIndexSetter"}; push(@headerContent, " bool putDelegate(JSC::ExecState*, const JSC::Identifier&, JSC::JSValue, JSC::PutPropertySlot&);\n") if $dataNode->extendedAttributes->{"DelegatingPutFunction"}; } # Class info push(@headerContent, " static const JSC::ClassInfo s_info;\n\n"); # Structure ID if ($interfaceName eq "DOMWindow") { $structureFlags{"JSC::ImplementsHasInstance"} = 1; $structureFlags{"JSC::NeedsThisConversion"} = 1; } push(@headerContent, " static JSC::Structure* createStructure(JSC::JSGlobalData& globalData, JSC::JSValue prototype)\n" . " {\n" . " return JSC::Structure::create(globalData, prototype, JSC::TypeInfo(JSC::ObjectType, StructureFlags), AnonymousSlotCount, &s_info);\n" . " }\n\n"); # visit function if ($needsMarkChildren) { push(@headerContent, " virtual void visitChildren(JSC::SlotVisitor&);\n\n"); $structureFlags{"JSC::OverridesVisitChildren"} = 1; } # Custom pushEventHandlerScope function push(@headerContent, " virtual JSC::ScopeChainNode* pushEventHandlerScope(JSC::ExecState*, JSC::ScopeChainNode*) const;\n\n") if $dataNode->extendedAttributes->{"CustomPushEventHandlerScope"}; # Custom call functions push(@headerContent, " virtual JSC::CallType getCallData(JSC::CallData&);\n\n") if $dataNode->extendedAttributes->{"CustomCall"}; # Custom deleteProperty function push(@headerContent, " virtual bool deleteProperty(JSC::ExecState*, const JSC::Identifier&);\n") if $dataNode->extendedAttributes->{"CustomDeleteProperty"}; # Custom getPropertyNames function exists on DOMWindow if ($interfaceName eq "DOMWindow") { push(@headerContent, " virtual void getPropertyNames(JSC::ExecState*, JSC::PropertyNameArray&, JSC::EnumerationMode mode = JSC::ExcludeDontEnumProperties);\n"); $structureFlags{"JSC::OverridesGetPropertyNames"} = 1; } # Custom defineProperty function exists on DOMWindow push(@headerContent, " virtual bool defineOwnProperty(JSC::ExecState*, const JSC::Identifier& propertyName, JSC::PropertyDescriptor&, bool shouldThrow);\n") if $interfaceName eq "DOMWindow"; # Custom getOwnPropertyNames function if ($dataNode->extendedAttributes->{"CustomGetPropertyNames"} || $dataNode->extendedAttributes->{"HasIndexGetter"} || $dataNode->extendedAttributes->{"HasCustomIndexGetter"} || $dataNode->extendedAttributes->{"HasNumericIndexGetter"}) { push(@headerContent, " virtual void getOwnPropertyNames(JSC::ExecState*, JSC::PropertyNameArray&, JSC::EnumerationMode mode = JSC::ExcludeDontEnumProperties);\n"); $structureFlags{"JSC::OverridesGetPropertyNames"} = 1; } # Custom defineGetter function push(@headerContent, " virtual void defineGetter(JSC::ExecState*, const JSC::Identifier& propertyName, JSC::JSObject* getterFunction, unsigned attributes);\n") if $dataNode->extendedAttributes->{"CustomDefineGetter"}; # Custom defineSetter function push(@headerContent, " virtual void defineSetter(JSC::ExecState*, const JSC::Identifier& propertyName, JSC::JSObject* setterFunction, unsigned attributes);\n") if $dataNode->extendedAttributes->{"CustomDefineSetter"}; # Custom lookupGetter function push(@headerContent, " virtual JSC::JSValue lookupGetter(JSC::ExecState*, const JSC::Identifier& propertyName);\n") if $dataNode->extendedAttributes->{"CustomLookupGetter"}; # Custom lookupSetter function push(@headerContent, " virtual JSC::JSValue lookupSetter(JSC::ExecState*, const JSC::Identifier& propertyName);\n") if $dataNode->extendedAttributes->{"CustomLookupSetter"}; # Override toBoolean to return false for objects that want to 'MasqueradesAsUndefined'. if ($dataNode->extendedAttributes->{"MasqueradesAsUndefined"}) { push(@headerContent, " virtual bool toBoolean(JSC::ExecState*) const { return false; };\n"); $structureFlags{"JSC::MasqueradesAsUndefined"} = 1; } # Constructor object getter push(@headerContent, " static JSC::JSValue getConstructor(JSC::ExecState*, JSC::JSGlobalObject*);\n") if (!($dataNode->extendedAttributes->{"OmitConstructor"} || $dataNode->extendedAttributes->{"CustomConstructor"})); my $numCustomFunctions = 0; my $numCustomAttributes = 0; # Attribute and function enums if ($numAttributes > 0) { foreach (@{$dataNode->attributes}) { my $attribute = $_; $numCustomAttributes++ if $attribute->signature->extendedAttributes->{"Custom"} || $attribute->signature->extendedAttributes->{"JSCCustom"}; $numCustomAttributes++ if $attribute->signature->extendedAttributes->{"CustomGetter"} || $attribute->signature->extendedAttributes->{"JSCCustomGetter"}; $numCustomAttributes++ if $attribute->signature->extendedAttributes->{"CustomSetter"} || $attribute->signature->extendedAttributes->{"JSCCustomSetter"}; if ($attribute->signature->extendedAttributes->{"CachedAttribute"}) { push(@headerContent, " static const unsigned " . $attribute->signature->name . "Slot = $numCachedAttributes + Base::AnonymousSlotCount;\n"); $numCachedAttributes++; } } } if ($numCachedAttributes > 0) { push(@headerContent, " using $parentClassName" . "::putAnonymousValue;\n"); push(@headerContent, " using $parentClassName" . "::getAnonymousValue;\n"); } if ($numCustomAttributes > 0) { push(@headerContent, "\n // Custom attributes\n"); foreach my $attribute (@{$dataNode->attributes}) { if ($attribute->signature->extendedAttributes->{"Custom"} || $attribute->signature->extendedAttributes->{"JSCCustom"}) { push(@headerContent, " JSC::JSValue " . $codeGenerator->WK_lcfirst($attribute->signature->name) . "(JSC::ExecState*) const;\n"); if ($attribute->type !~ /^readonly/) { push(@headerContent, " void set" . $codeGenerator->WK_ucfirst($attribute->signature->name) . "(JSC::ExecState*, JSC::JSValue);\n"); } } elsif ($attribute->signature->extendedAttributes->{"CustomGetter"} || $attribute->signature->extendedAttributes->{"JSCCustomGetter"}) { push(@headerContent, " JSC::JSValue " . $codeGenerator->WK_lcfirst($attribute->signature->name) . "(JSC::ExecState*) const;\n"); } elsif ($attribute->signature->extendedAttributes->{"CustomSetter"} || $attribute->signature->extendedAttributes->{"JSCCustomSetter"}) { if ($attribute->type !~ /^readonly/) { push(@headerContent, " void set" . $codeGenerator->WK_ucfirst($attribute->signature->name) . "(JSC::ExecState*, JSC::JSValue);\n"); } } } } foreach my $function (@{$dataNode->functions}) { $numCustomFunctions++ if $function->signature->extendedAttributes->{"Custom"} || $function->signature->extendedAttributes->{"JSCCustom"}; } if ($numCustomFunctions > 0) { push(@headerContent, "\n // Custom functions\n"); foreach my $function (@{$dataNode->functions}) { if ($function->signature->extendedAttributes->{"Custom"} || $function->signature->extendedAttributes->{"JSCCustom"}) { my $functionImplementationName = $function->signature->extendedAttributes->{"ImplementationFunction"} || $codeGenerator->WK_lcfirst($function->signature->name); push(@headerContent, " JSC::JSValue " . $functionImplementationName . "(JSC::ExecState*);\n"); } } } if (!$hasParent) { push(@headerContent, " $implType* impl() const { return m_impl.get(); }\n\n"); push(@headerContent, "private:\n"); push(@headerContent, " RefPtr<$implType> m_impl;\n"); } elsif ($dataNode->extendedAttributes->{"GenerateNativeConverter"}) { push(@headerContent, " $implClassName* impl() const\n"); push(@headerContent, " {\n"); push(@headerContent, " return static_cast<$implClassName*>(Base::impl());\n"); push(@headerContent, " }\n"); } # anonymous slots if ($numCachedAttributes) { push(@headerContent, "public:\n"); push(@headerContent, " static const unsigned AnonymousSlotCount = $numCachedAttributes + Base::AnonymousSlotCount;\n"); } # structure flags push(@headerContent, "protected:\n"); push(@headerContent, " static const unsigned StructureFlags = "); foreach my $structureFlag (keys %structureFlags) { push(@headerContent, $structureFlag . " | "); } push(@headerContent, "Base::StructureFlags;\n"); # Index getter if ($dataNode->extendedAttributes->{"HasIndexGetter"}) { push(@headerContent, " static JSC::JSValue indexGetter(JSC::ExecState*, JSC::JSValue, unsigned);\n"); } if ($dataNode->extendedAttributes->{"HasCustomIndexGetter"} || $dataNode->extendedAttributes->{"HasNumericIndexGetter"}) { push(@headerContent, " JSC::JSValue getByIndex(JSC::ExecState*, unsigned index);\n"); } # Index setter if ($dataNode->extendedAttributes->{"HasCustomIndexSetter"}) { push(@headerContent, " void indexSetter(JSC::ExecState*, unsigned index, JSC::JSValue);\n"); } # Name getter if ($dataNode->extendedAttributes->{"HasNameGetter"} || $dataNode->extendedAttributes->{"HasOverridingNameGetter"}) { push(@headerContent, "private:\n"); push(@headerContent, " static bool canGetItemsForName(JSC::ExecState*, $implClassName*, const JSC::Identifier&);\n"); push(@headerContent, " static JSC::JSValue nameGetter(JSC::ExecState*, JSC::JSValue, const JSC::Identifier&);\n"); } push(@headerContent, "};\n\n"); if ($dataNode->extendedAttributes->{"InlineGetOwnPropertySlot"} && !$dataNode->extendedAttributes->{"CustomGetOwnPropertySlot"}) { push(@headerContent, "ALWAYS_INLINE bool ${className}::getOwnPropertySlot(JSC::ExecState* exec, const JSC::Identifier& propertyName, JSC::PropertySlot& slot)\n"); push(@headerContent, "{\n"); push(@headerContent, GenerateGetOwnPropertySlotBody($dataNode, $interfaceName, $className, $implClassName, $numAttributes > 0, 1)); push(@headerContent, "}\n\n"); push(@headerContent, "ALWAYS_INLINE bool ${className}::getOwnPropertyDescriptor(JSC::ExecState* exec, const JSC::Identifier& propertyName, JSC::PropertyDescriptor& descriptor)\n"); push(@headerContent, "{\n"); push(@headerContent, GenerateGetOwnPropertyDescriptorBody($dataNode, $interfaceName, $className, $implClassName, $numAttributes > 0, 1)); push(@headerContent, "}\n\n"); } if ($dataNode->extendedAttributes->{"GenerateIsReachable"} || $dataNode->extendedAttributes->{"CustomIsReachable"} || $dataNode->extendedAttributes->{"CustomFinalize"} || $dataNode->extendedAttributes->{"ActiveDOMObject"}) { push(@headerContent, "class JS${implType}Owner : public JSC::WeakHandleOwner {\n"); push(@headerContent, " virtual bool isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown>, void* context, JSC::SlotVisitor&);\n"); push(@headerContent, " virtual void finalize(JSC::Handle<JSC::Unknown>, void* context);\n"); push(@headerContent, "};\n"); push(@headerContent, "\n"); push(@headerContent, "inline JSC::WeakHandleOwner* wrapperOwner(DOMWrapperWorld*, $implType*)\n"); push(@headerContent, "{\n"); push(@headerContent, " DEFINE_STATIC_LOCAL(JS${implType}Owner, js${implType}Owner, ());\n"); push(@headerContent, " return &js${implType}Owner;\n"); push(@headerContent, "}\n"); push(@headerContent, "\n"); push(@headerContent, "inline void* wrapperContext(DOMWrapperWorld* world, $implType*)\n"); push(@headerContent, "{\n"); push(@headerContent, " return world;\n"); push(@headerContent, "}\n"); push(@headerContent, "\n"); } if (!$hasParent || $dataNode->extendedAttributes->{"GenerateToJS"} || $dataNode->extendedAttributes->{"CustomToJS"}) { push(@headerContent, "JSC::JSValue toJS(JSC::ExecState*, JSDOMGlobalObject*, $implType*);\n"); } if (!$hasParent || $dataNode->extendedAttributes->{"GenerateNativeConverter"}) { if ($interfaceName eq "NodeFilter") { push(@headerContent, "PassRefPtr<NodeFilter> toNodeFilter(JSC::JSGlobalData&, JSC::JSValue);\n"); } else { push(@headerContent, "$implType* to${interfaceName}(JSC::JSValue);\n"); } } if ($usesToJSNewlyCreated{$interfaceName}) { push(@headerContent, "JSC::JSValue toJSNewlyCreated(JSC::ExecState*, JSDOMGlobalObject*, $interfaceName*);\n"); } push(@headerContent, "\n"); # Add prototype declaration. %structureFlags = (); push(@headerContent, "class ${className}Prototype : public JSC::JSObjectWithGlobalObject {\n"); push(@headerContent, " typedef JSC::JSObjectWithGlobalObject Base;\n"); push(@headerContent, "public:\n"); if ($interfaceName eq "DOMWindow") { push(@headerContent, " void* operator new(size_t);\n"); } elsif ($dataNode->extendedAttributes->{"IsWorkerContext"}) { push(@headerContent, " void* operator new(size_t, JSC::JSGlobalData*);\n"); } else { push(@headerContent, " static JSC::JSObject* self(JSC::ExecState*, JSC::JSGlobalObject*);\n"); } push(@headerContent, " static const JSC::ClassInfo s_info;\n"); if ($numFunctions > 0 || $numConstants > 0 || $dataNode->extendedAttributes->{"DelegatingPrototypeGetOwnPropertySlot"}) { push(@headerContent, " virtual bool getOwnPropertySlot(JSC::ExecState*, const JSC::Identifier&, JSC::PropertySlot&);\n"); push(@headerContent, " virtual bool getOwnPropertyDescriptor(JSC::ExecState*, const JSC::Identifier&, JSC::PropertyDescriptor&);\n"); push(@headerContent, " bool getOwnPropertySlotDelegate(JSC::ExecState*, const JSC::Identifier&, JSC::PropertySlot&);\n") if $dataNode->extendedAttributes->{"DelegatingPrototypeGetOwnPropertySlot"}; push(@headerContent, " bool getOwnPropertyDescriptorDelegate(JSC::ExecState*, const JSC::Identifier&, JSC::PropertyDescriptor&);\n") if $dataNode->extendedAttributes->{"DelegatingPrototypeGetOwnPropertySlot"}; $structureFlags{"JSC::OverridesGetOwnPropertySlot"} = 1; } if ($dataNode->extendedAttributes->{"CustomMarkFunction"} or $needsMarkChildren) { $structureFlags{"JSC::OverridesVisitChildren"} = 1; } push(@headerContent, " static JSC::Structure* createStructure(JSC::JSGlobalData& globalData, JSC::JSValue prototype)\n" . " {\n" . " return JSC::Structure::create(globalData, prototype, JSC::TypeInfo(JSC::ObjectType, StructureFlags), AnonymousSlotCount, &s_info);\n" . " }\n"); if ($dataNode->extendedAttributes->{"DelegatingPrototypePutFunction"}) { push(@headerContent, " virtual void put(JSC::ExecState*, const JSC::Identifier& propertyName, JSC::JSValue, JSC::PutPropertySlot&);\n"); push(@headerContent, " bool putDelegate(JSC::ExecState*, const JSC::Identifier&, JSC::JSValue, JSC::PutPropertySlot&);\n"); } # Custom defineGetter function push(@headerContent, " virtual void defineGetter(JSC::ExecState*, const JSC::Identifier& propertyName, JSC::JSObject* getterFunction, unsigned attributes);\n") if $dataNode->extendedAttributes->{"CustomPrototypeDefineGetter"}; push(@headerContent, " ${className}Prototype(JSC::JSGlobalData& globalData, JSC::JSGlobalObject* globalObject, JSC::Structure* structure) : JSC::JSObjectWithGlobalObject(globalData, globalObject, structure) { }\n"); # structure flags push(@headerContent, "protected:\n"); push(@headerContent, " static const unsigned StructureFlags = "); foreach my $structureFlag (keys %structureFlags) { push(@headerContent, $structureFlag . " | "); } push(@headerContent, "Base::StructureFlags;\n"); push(@headerContent, "};\n\n"); # Conditionally emit the constructor object's declaration if ($dataNode->extendedAttributes->{"CustomConstructFunction"}) { GenerateConstructorDeclaration(\@headerContent, $className, $dataNode); } if ($numFunctions > 0) { push(@headerContent,"// Functions\n\n"); foreach my $function (@{$dataNode->functions}) { next if $function->{overloadIndex} && $function->{overloadIndex} > 1; my $functionName = $codeGenerator->WK_lcfirst($className) . "PrototypeFunction" . $codeGenerator->WK_ucfirst($function->signature->name); push(@headerContent, "JSC::EncodedJSValue JSC_HOST_CALL ${functionName}(JSC::ExecState*);\n"); } } if ($numAttributes > 0 || !($dataNode->extendedAttributes->{"OmitConstructor"} || $dataNode->extendedAttributes->{"CustomConstructor"})) { push(@headerContent,"// Attributes\n\n"); foreach my $attribute (@{$dataNode->attributes}) { my $getter = "js" . $interfaceName . $codeGenerator->WK_ucfirst($attribute->signature->name) . ($attribute->signature->type =~ /Constructor$/ ? "Constructor" : ""); push(@headerContent, "JSC::JSValue ${getter}(JSC::ExecState*, JSC::JSValue, const JSC::Identifier&);\n"); unless ($attribute->type =~ /readonly/) { my $setter = "setJS" . $interfaceName . $codeGenerator->WK_ucfirst($attribute->signature->name) . ($attribute->signature->type =~ /Constructor$/ ? "Constructor" : ""); push(@headerContent, "void ${setter}(JSC::ExecState*, JSC::JSObject*, JSC::JSValue);\n"); } } if (!($dataNode->extendedAttributes->{"OmitConstructor"} || $dataNode->extendedAttributes->{"CustomConstructor"})) { my $getter = "js" . $interfaceName . "Constructor"; push(@headerContent, "JSC::JSValue ${getter}(JSC::ExecState*, JSC::JSValue, const JSC::Identifier&);\n"); } if ($dataNode->extendedAttributes->{"ReplaceableConstructor"}) { my $constructorFunctionName = "setJS" . $interfaceName . "Constructor"; push(@headerContent, "void ${constructorFunctionName}(JSC::ExecState*, JSC::JSObject*, JSC::JSValue);\n"); } } if ($numConstants > 0) { push(@headerContent,"// Constants\n\n"); foreach my $constant (@{$dataNode->constants}) { my $getter = "js" . $interfaceName . $codeGenerator->WK_ucfirst($constant->name); push(@headerContent, "JSC::JSValue ${getter}(JSC::ExecState*, JSC::JSValue, const JSC::Identifier&);\n"); } } my $conditionalString = GenerateConditionalString($dataNode); push(@headerContent, "\n} // namespace WebCore\n\n"); push(@headerContent, "#endif // ${conditionalString}\n\n") if $conditionalString; push(@headerContent, "#endif\n"); # - Generate dependencies. if ($writeDependencies && @ancestorInterfaceNames) { push(@depsContent, "$className.h : ", join(" ", map { "$_.idl" } @ancestorInterfaceNames), "\n"); push(@depsContent, map { "$_.idl :\n" } @ancestorInterfaceNames); }}sub GenerateAttributesHashTable($$){ my ($object, $dataNode) = @_; # FIXME: These should be functions on $dataNode. my $interfaceName = $dataNode->name; my $className = "JS$interfaceName"; # - Add all attributes in a hashtable definition my $numAttributes = @{$dataNode->attributes}; $numAttributes++ if (!($dataNode->extendedAttributes->{"OmitConstructor"} || $dataNode->extendedAttributes->{"CustomConstructor"})); return 0 if !$numAttributes; my $hashSize = $numAttributes; my $hashName = $className . "Table"; my @hashKeys = (); my @hashSpecials = (); my @hashValue1 = (); my @hashValue2 = (); my %conditionals = (); my @entries = (); foreach my $attribute (@{$dataNode->attributes}) { my $name = $attribute->signature->name; push(@hashKeys, $name); my @specials = (); push(@specials, "DontDelete") unless $attribute->signature->extendedAttributes->{"Deletable"}; push(@specials, "DontEnum") if $attribute->signature->extendedAttributes->{"DontEnum"}; push(@specials, "ReadOnly") if $attribute->type =~ /readonly/; my $special = (@specials > 0) ? join(" | ", @specials) : "0"; push(@hashSpecials, $special); my $getter = "js" . $interfaceName . $codeGenerator->WK_ucfirst($attribute->signature->name) . ($attribute->signature->type =~ /Constructor$/ ? "Constructor" : ""); push(@hashValue1, $getter); if ($attribute->type =~ /readonly/) { push(@hashValue2, "0"); } else { my $setter = "setJS" . $interfaceName . $codeGenerator->WK_ucfirst($attribute->signature->name) . ($attribute->signature->type =~ /Constructor$/ ? "Constructor" : ""); push(@hashValue2, $setter); } my $conditional = $attribute->signature->extendedAttributes->{"Conditional"}; if ($conditional) { $conditionals{$name} = $conditional; } } if (!($dataNode->extendedAttributes->{"OmitConstructor"} || $dataNode->extendedAttributes->{"CustomConstructor"})) { push(@hashKeys, "constructor"); my $getter = "js" . $interfaceName . "Constructor"; push(@hashValue1, $getter); if ($dataNode->extendedAttributes->{"ReplaceableConstructor"}) { my $setter = "setJS" . $interfaceName . "Constructor"; push(@hashValue2, $setter); push(@hashSpecials, "DontEnum | DontDelete"); } else { push(@hashValue2, "0"); push(@hashSpecials, "DontEnum | ReadOnly"); } } $object->GenerateHashTable($hashName, $hashSize, \@hashKeys, \@hashSpecials, \@hashValue1, \@hashValue2, \%conditionals); return $numAttributes;}sub GenerateParametersCheckExpression{ my $numParameters = shift; my $function = shift; my @andExpression = (); push(@andExpression, "exec->argumentCount() == $numParameters"); my $parameterIndex = 0; foreach $parameter (@{$function->parameters}) { last if $parameterIndex >= $numParameters; my $value = "exec->argument($parameterIndex)"; my $type = $codeGenerator->StripModule($parameter->type); # Only DOMString or wrapper types are checked. # For DOMString, Null, Undefined and any Object are accepted too, as # these are acceptable values for a DOMString argument (any Object can # be converted to a string via .toString). if ($codeGenerator->IsStringType($type)) { push(@andExpression, "(${value}.isNull() || ${value}.isUndefined() || ${value}.isString() || ${value}.isObject())"); } elsif ($parameter->extendedAttributes->{"Callback"}) { # For Callbacks only checks if the value is null or object. push(@andExpression, "(${value}.isNull() || ${value}.isObject())"); } elsif (!IsNativeType($type)) { push(@andExpression, "(${value}.isNull() || (${value}.isObject() && asObject(${value})->inherits(&JS${type}::s_info)))"); } $parameterIndex++; } my $res = join(" && ", @andExpression); $res = "($res)" if @andExpression > 1; return $res;}sub GenerateFunctionParametersCheck{ my $function = shift; my @orExpression = (); my $numParameters = 0; foreach $parameter (@{$function->parameters}) { if ($parameter->extendedAttributes->{"Optional"}) { push(@orExpression, GenerateParametersCheckExpression($numParameters, $function)); } $numParameters++; } push(@orExpression, GenerateParametersCheckExpression($numParameters, $function)); return join(" || ", @orExpression);}sub GenerateOverloadedPrototypeFunction{ my $function = shift; my $dataNode = shift; my $implClassName = shift; # Generate code for choosing the correct overload to call. Overloads are # chosen based on the total number of arguments passed and the type of # values passed in non-primitive argument slots. When more than a single # overload is applicable, precedence is given according to the order of # declaration in the IDL. my $functionName = "js${implClassName}PrototypeFunction" . $codeGenerator->WK_ucfirst($function->signature->name); push(@implContent, "EncodedJSValue JSC_HOST_CALL ${functionName}(ExecState* exec)\n"); push(@implContent, <<END);{END foreach my $overload (@{$function->{overloads}}) { my $parametersCheck = GenerateFunctionParametersCheck($overload); push(@implContent, " if ($parametersCheck)\n"); push(@implContent, " return ${functionName}$overload->{overloadIndex}(exec);\n"); } push(@implContent, <<END); return throwVMTypeError(exec);}END}sub GenerateImplementation{ my ($object, $dataNode) = @_; my $interfaceName = $dataNode->name; my $className = "JS$interfaceName"; my $implClassName = $interfaceName; my $hasLegacyParent = $dataNode->extendedAttributes->{"LegacyParent"}; my $hasRealParent = @{$dataNode->parents} > 0; my $hasParent = $hasLegacyParent || $hasRealParent; my $parentClassName = GetParentClassName($dataNode); my $visibleClassName = GetVisibleClassName($interfaceName); my $eventTarget = $dataNode->extendedAttributes->{"EventTarget"}; my $needsMarkChildren = $dataNode->extendedAttributes->{"CustomMarkFunction"} || $dataNode->extendedAttributes->{"EventTarget"}; # - Add default header template push(@implContentHeader, GenerateImplementationContentHeader($dataNode)); AddIncludesForSVGAnimatedType($interfaceName) if $className =~ /^JSSVGAnimated/; $implIncludes{"<wtf/GetPtr.h>"} = 1; $implIncludes{"<runtime/PropertyNameArray.h>"} = 1 if $dataNode->extendedAttributes->{"HasIndexGetter"} || $dataNode->extendedAttributes->{"HasCustomIndexGetter"} || $dataNode->extendedAttributes->{"HasNumericIndexGetter"}; AddIncludesForType($interfaceName); @implContent = (); push(@implContent, "\nusing namespace JSC;\n\n"); push(@implContent, "namespace WebCore {\n\n"); push(@implContent, "ASSERT_CLASS_FITS_IN_CELL($className);\n\n"); my $numAttributes = GenerateAttributesHashTable($object, $dataNode); my $numConstants = @{$dataNode->constants}; my $numFunctions = @{$dataNode->functions}; # - Add all constants if (!($dataNode->extendedAttributes->{"OmitConstructor"} || $dataNode->extendedAttributes->{"CustomConstructor"})) { $hashSize = $numConstants; $hashName = $className . "ConstructorTable"; @hashKeys = (); @hashValue1 = (); @hashValue2 = (); @hashSpecials = (); # FIXME: we should not need a function for every constant. foreach my $constant (@{$dataNode->constants}) { push(@hashKeys, $constant->name); my $getter = "js" . $interfaceName . $codeGenerator->WK_ucfirst($constant->name); push(@hashValue1, $getter); push(@hashValue2, "0"); push(@hashSpecials, "DontDelete | ReadOnly"); } $object->GenerateHashTable($hashName, $hashSize, \@hashKeys, \@hashSpecials, \@hashValue1, \@hashValue2); push(@implContent, $codeGenerator->GenerateCompileTimeCheckForEnumsIfNeeded($dataNode)); my $protoClassName = "${className}Prototype"; GenerateConstructorDeclaration(\@implContent, $className, $dataNode) unless $dataNode->extendedAttributes->{"CustomConstructFunction"}; GenerateConstructorDefinition(\@implContent, $className, $protoClassName, $interfaceName, $visibleClassName, $dataNode); } # - Add functions and constants to a hashtable definition $hashSize = $numFunctions + $numConstants; $hashName = $className . "PrototypeTable"; @hashKeys = (); @hashValue1 = (); @hashValue2 = (); @hashSpecials = (); # FIXME: we should not need a function for every constant. foreach my $constant (@{$dataNode->constants}) { push(@hashKeys, $constant->name); my $getter = "js" . $interfaceName . $codeGenerator->WK_ucfirst($constant->name); push(@hashValue1, $getter); push(@hashValue2, "0"); push(@hashSpecials, "DontDelete | ReadOnly"); } foreach my $function (@{$dataNode->functions}) { next if $function->{overloadIndex} && $function->{overloadIndex} > 1; my $name = $function->signature->name; push(@hashKeys, $name); my $value = $codeGenerator->WK_lcfirst($className) . "PrototypeFunction" . $codeGenerator->WK_ucfirst($name); push(@hashValue1, $value); my $numParameters = @{$function->parameters}; push(@hashValue2, $numParameters); my @specials = (); push(@specials, "DontDelete") unless $function->signature->extendedAttributes->{"Deletable"}; push(@specials, "DontEnum") if $function->signature->extendedAttributes->{"DontEnum"}; push(@specials, "Function"); my $special = (@specials > 0) ? join(" | ", @specials) : "0"; push(@hashSpecials, $special); } $object->GenerateHashTable($hashName, $hashSize, \@hashKeys, \@hashSpecials, \@hashValue1, \@hashValue2); if ($dataNode->extendedAttributes->{"NoStaticTables"}) { push(@implContent, "static const HashTable* get${className}PrototypeTable(ExecState* exec)\n"); push(@implContent, "{\n"); push(@implContent, " return getHashTableForGlobalData(exec->globalData(), &${className}PrototypeTable);\n"); push(@implContent, "}\n\n"); push(@implContent, "const ClassInfo ${className}Prototype::s_info = { \"${visibleClassName}Prototype\", &JSC::JSObjectWithGlobalObject::s_info, 0, get${className}PrototypeTable };\n\n"); } else { push(@implContent, "const ClassInfo ${className}Prototype::s_info = { \"${visibleClassName}Prototype\", &JSC::JSObjectWithGlobalObject::s_info, &${className}PrototypeTable, 0 };\n\n"); } if ($interfaceName eq "DOMWindow") { push(@implContent, "void* ${className}Prototype::operator new(size_t size)\n"); push(@implContent, "{\n"); push(@implContent, " return JSDOMWindow::commonJSGlobalData()->heap.allocate(size);\n"); push(@implContent, "}\n\n"); } elsif ($dataNode->extendedAttributes->{"IsWorkerContext"}) { push(@implContent, "void* ${className}Prototype::operator new(size_t size, JSGlobalData* globalData)\n"); push(@implContent, "{\n"); push(@implContent, " return globalData->heap.allocate(size);\n"); push(@implContent, "}\n\n"); } else { push(@implContent, "JSObject* ${className}Prototype::self(ExecState* exec, JSGlobalObject* globalObject)\n"); push(@implContent, "{\n"); push(@implContent, " return getDOMPrototype<${className}>(exec, globalObject);\n"); push(@implContent, "}\n\n"); } if ($numConstants > 0 || $numFunctions > 0 || $dataNode->extendedAttributes->{"DelegatingPrototypeGetOwnPropertySlot"}) { push(@implContent, "bool ${className}Prototype::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot& slot)\n"); push(@implContent, "{\n"); if ($dataNode->extendedAttributes->{"DelegatingPrototypeGetOwnPropertySlot"}) { push(@implContent, " if (getOwnPropertySlotDelegate(exec, propertyName, slot))\n"); push(@implContent, " return true;\n"); } if ($numConstants eq 0 && $numFunctions eq 0) { push(@implContent, " return Base::getOwnPropertySlot(exec, propertyName, slot);\n"); } elsif ($numConstants eq 0) { push(@implContent, " return getStaticFunctionSlot<JSObject>(exec, " . prototypeHashTableAccessor($dataNode->extendedAttributes->{"NoStaticTables"}, $className) . ", this, propertyName, slot);\n"); } elsif ($numFunctions eq 0) { push(@implContent, " return getStaticValueSlot<${className}Prototype, JSObject>(exec, " . prototypeHashTableAccessor($dataNode->extendedAttributes->{"NoStaticTables"}, $className) . ", this, propertyName, slot);\n"); } else { push(@implContent, " return getStaticPropertySlot<${className}Prototype, JSObject>(exec, " . prototypeHashTableAccessor($dataNode->extendedAttributes->{"NoStaticTables"}, $className) . ", this, propertyName, slot);\n"); } push(@implContent, "}\n\n"); push(@implContent, "bool ${className}Prototype::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)\n"); push(@implContent, "{\n"); if ($dataNode->extendedAttributes->{"DelegatingPrototypeGetOwnPropertySlot"}) { push(@implContent, " if (getOwnPropertyDescriptorDelegate(exec, propertyName, descriptor))\n"); push(@implContent, " return true;\n"); } if ($numConstants eq 0 && $numFunctions eq 0) { push(@implContent, " return Base::getOwnPropertyDescriptor(exec, propertyName, descriptor);\n"); } elsif ($numConstants eq 0) { push(@implContent, " return getStaticFunctionDescriptor<JSObject>(exec, " . prototypeHashTableAccessor($dataNode->extendedAttributes->{"NoStaticTables"}, $className) . ", this, propertyName, descriptor);\n"); } elsif ($numFunctions eq 0) { push(@implContent, " return getStaticValueDescriptor<${className}Prototype, JSObject>(exec, " . prototypeHashTableAccessor($dataNode->extendedAttributes->{"NoStaticTables"}, $className) . ", this, propertyName, descriptor);\n"); } else { push(@implContent, " return getStaticPropertyDescriptor<${className}Prototype, JSObject>(exec, " . prototypeHashTableAccessor($dataNode->extendedAttributes->{"NoStaticTables"}, $className) . ", this, propertyName, descriptor);\n"); } push(@implContent, "}\n\n"); } if ($dataNode->extendedAttributes->{"DelegatingPrototypePutFunction"}) { push(@implContent, "void ${className}Prototype::put(ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot)\n"); push(@implContent, "{\n"); push(@implContent, " if (putDelegate(exec, propertyName, value, slot))\n"); push(@implContent, " return;\n"); push(@implContent, " Base::put(exec, propertyName, value, slot);\n"); push(@implContent, "}\n\n"); } # - Initialize static ClassInfo object if ($numAttributes > 0 && $dataNode->extendedAttributes->{"NoStaticTables"}) { push(@implContent, "static const HashTable* get${className}Table(ExecState* exec)\n"); push(@implContent, "{\n"); push(@implContent, " return getHashTableForGlobalData(exec->globalData(), &${className}Table);\n"); push(@implContent, "}\n\n"); } push(@implContent, "const ClassInfo $className" . "::s_info = { \"${visibleClassName}\", &" . $parentClassName . "::s_info, "); if ($numAttributes > 0 && !$dataNode->extendedAttributes->{"NoStaticTables"}) { push(@implContent, "&${className}Table"); } else { push(@implContent, "0"); } if ($numAttributes > 0 && $dataNode->extendedAttributes->{"NoStaticTables"}) { push(@implContent, ", get${className}Table "); } else { push(@implContent, ", 0 "); } push(@implContent, "};\n\n"); my $implType = $implClassName; my ($svgPropertyType, $svgListPropertyType, $svgNativeType) = GetSVGPropertyTypes($implType); $implType = $svgNativeType if $svgNativeType; my $svgPropertyOrListPropertyType; $svgPropertyOrListPropertyType = $svgPropertyType if $svgPropertyType; $svgPropertyOrListPropertyType = $svgListPropertyType if $svgListPropertyType; # Constructor if ($interfaceName eq "DOMWindow") { AddIncludesForType("JSDOMWindowShell"); push(@implContent, "${className}::$className(JSGlobalData& globalData, Structure* structure, PassRefPtr<$implType> impl, JSDOMWindowShell* shell)\n"); push(@implContent, " : $parentClassName(globalData, structure, impl, shell)\n"); } elsif ($dataNode->extendedAttributes->{"IsWorkerContext"}) { AddIncludesForType($interfaceName); push(@implContent, "${className}::$className(JSGlobalData& globalData, Structure* structure, PassRefPtr<$implType> impl)\n"); push(@implContent, " : $parentClassName(globalData, structure, impl)\n"); } else { push(@implContent, "${className}::$className(Structure* structure, JSDOMGlobalObject* globalObject, PassRefPtr<$implType> impl)\n"); if ($hasParent) { push(@implContent, " : $parentClassName(structure, globalObject, impl)\n"); } else { push(@implContent, " : $parentClassName(structure, globalObject)\n"); push(@implContent, " , m_impl(impl)\n"); } } push(@implContent, "{\n"); push(@implContent, " ASSERT(inherits(&s_info));\n"); if ($numCachedAttributes > 0) { push(@implContent, " for (unsigned i = Base::AnonymousSlotCount; i < AnonymousSlotCount; i++)\n"); push(@implContent, " putAnonymousValue(globalObject->globalData(), i, JSValue());\n"); } push(@implContent, "}\n\n"); if ($needsMarkChildren && !$dataNode->extendedAttributes->{"CustomMarkFunction"}) { push(@implContent, "void ${className}::visitChildren(SlotVisitor& visitor)\n"); push(@implContent, "{\n"); push(@implContent, " Base::visitChildren(visitor);\n"); push(@implContent, " impl()->visitJSEventListeners(visitor);\n"); push(@implContent, "}\n\n"); } if (!$dataNode->extendedAttributes->{"ExtendsDOMGlobalObject"}) { push(@implContent, "JSObject* ${className}::createPrototype(ExecState* exec, JSGlobalObject* globalObject)\n"); push(@implContent, "{\n"); if ($hasParent && $parentClassName ne "JSC::DOMNodeFilter") { push(@implContent, " return new (exec) ${className}Prototype(exec->globalData(), globalObject, ${className}Prototype::createStructure(exec->globalData(), ${parentClassName}Prototype::self(exec, globalObject)));\n"); } else { push(@implContent, " return new (exec) ${className}Prototype(exec->globalData(), globalObject, ${className}Prototype::createStructure(globalObject->globalData(), globalObject->objectPrototype()));\n"); } push(@implContent, "}\n\n"); } my $hasGetter = $numAttributes > 0 || !($dataNode->extendedAttributes->{"OmitConstructor"} || $dataNode->extendedAttributes->{"CustomConstructor"}) || $dataNode->extendedAttributes->{"HasIndexGetter"} || $dataNode->extendedAttributes->{"HasCustomIndexGetter"} || $dataNode->extendedAttributes->{"HasNumericIndexGetter"} || $dataNode->extendedAttributes->{"DelegatingGetOwnPropertySlot"} || $dataNode->extendedAttributes->{"CustomGetOwnPropertySlot"} || $dataNode->extendedAttributes->{"HasNameGetter"} || $dataNode->extendedAttributes->{"HasOverridingNameGetter"}; # Attributes if ($hasGetter) { if (!$dataNode->extendedAttributes->{"InlineGetOwnPropertySlot"} && !$dataNode->extendedAttributes->{"CustomGetOwnPropertySlot"}) { push(@implContent, "bool ${className}::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot& slot)\n"); push(@implContent, "{\n"); push(@implContent, GenerateGetOwnPropertySlotBody($dataNode, $interfaceName, $className, $implClassName, $numAttributes > 0, 0)); push(@implContent, "}\n\n"); push(@implContent, "bool ${className}::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)\n"); push(@implContent, "{\n"); push(@implContent, GenerateGetOwnPropertyDescriptorBody($dataNode, $interfaceName, $className, $implClassName, $numAttributes > 0, 0)); push(@implContent, "}\n\n"); } if (($dataNode->extendedAttributes->{"HasIndexGetter"} || $dataNode->extendedAttributes->{"HasCustomIndexGetter"} || $dataNode->extendedAttributes->{"HasNumericIndexGetter"}) && !$dataNode->extendedAttributes->{"HasOverridingNameGetter"}) { push(@implContent, "bool ${className}::getOwnPropertySlot(ExecState* exec, unsigned propertyName, PropertySlot& slot)\n"); push(@implContent, "{\n"); push(@implContent, " if (propertyName < static_cast<$implClassName*>(impl())->length()) {\n"); if ($dataNode->extendedAttributes->{"HasCustomIndexGetter"} || $dataNode->extendedAttributes->{"HasNumericIndexGetter"}) { push(@implContent, " slot.setValue(getByIndex(exec, propertyName));\n"); } else { push(@implContent, " slot.setCustomIndex(this, propertyName, indexGetter);\n"); } push(@implContent, " return true;\n"); push(@implContent, " }\n"); push(@implContent, " return getOwnPropertySlot(exec, Identifier::from(exec, propertyName), slot);\n"); push(@implContent, "}\n\n"); } if ($numAttributes > 0) { foreach my $attribute (@{$dataNode->attributes}) { my $name = $attribute->signature->name; my $type = $codeGenerator->StripModule($attribute->signature->type); my $getFunctionName = "js" . $interfaceName . $codeGenerator->WK_ucfirst($attribute->signature->name) . ($attribute->signature->type =~ /Constructor$/ ? "Constructor" : ""); my $implGetterFunctionName = $codeGenerator->WK_lcfirst($name); my $attributeConditionalString = GenerateConditionalString($attribute->signature); push(@implContent, "#if ${attributeConditionalString}\n") if $attributeConditionalString; push(@implContent, "JSValue ${getFunctionName}(ExecState* exec, JSValue slotBase, const Identifier&)\n"); push(@implContent, "{\n"); push(@implContent, " ${className}* castedThis = static_cast<$className*>(asObject(slotBase));\n"); if ($dataNode->extendedAttributes->{"CheckDomainSecurity"} && !$attribute->signature->extendedAttributes->{"DoNotCheckDomainSecurity"} && !$attribute->signature->extendedAttributes->{"DoNotCheckDomainSecurityOnGet"}) { push(@implContent, " if (!castedThis->allowsAccessFrom(exec))\n"); push(@implContent, " return jsUndefined();\n"); } if ($attribute->signature->extendedAttributes->{"Custom"} || $attribute->signature->extendedAttributes->{"JSCCustom"} || $attribute->signature->extendedAttributes->{"CustomGetter"} || $attribute->signature->extendedAttributes->{"JSCCustomGetter"}) { push(@implContent, " return castedThis->$implGetterFunctionName(exec);\n"); } elsif ($attribute->signature->extendedAttributes->{"CheckNodeSecurity"}) { $implIncludes{"JSDOMBinding.h"} = 1; push(@implContent, " $implClassName* imp = static_cast<$implClassName*>(castedThis->impl());\n"); push(@implContent, " return checkNodeSecurity(exec, imp->$implGetterFunctionName()) ? " . NativeToJSValue($attribute->signature, 0, $implClassName, "imp->$implGetterFunctionName()", "castedThis") . " : jsUndefined();\n"); } elsif ($attribute->signature->extendedAttributes->{"CheckFrameSecurity"}) { $implIncludes{"Document.h"} = 1; $implIncludes{"JSDOMBinding.h"} = 1; push(@implContent, " $implClassName* imp = static_cast<$implClassName*>(castedThis->impl());\n"); push(@implContent, " return checkNodeSecurity(exec, imp->contentDocument()) ? " . NativeToJSValue($attribute->signature, 0, $implClassName, "imp->$implGetterFunctionName()", "castedThis") . " : jsUndefined();\n"); } elsif ($type eq "EventListener") { $implIncludes{"EventListener.h"} = 1; push(@implContent, " UNUSED_PARAM(exec);\n"); push(@implContent, " $implClassName* imp = static_cast<$implClassName*>(castedThis->impl());\n"); push(@implContent, " if (EventListener* listener = imp->$implGetterFunctionName()) {\n"); push(@implContent, " if (const JSEventListener* jsListener = JSEventListener::cast(listener)) {\n"); if ($implClassName eq "Document" || $implClassName eq "WorkerContext" || $implClassName eq "SharedWorkerContext" || $implClassName eq "DedicatedWorkerContext") { push(@implContent, " if (JSObject* jsFunction = jsListener->jsFunction(imp))\n"); } else { push(@implContent, " if (JSObject* jsFunction = jsListener->jsFunction(imp->scriptExecutionContext()))\n"); } push(@implContent, " return jsFunction;\n"); push(@implContent, " }\n"); push(@implContent, " }\n"); push(@implContent, " return jsNull();\n"); } elsif ($attribute->signature->type =~ /Constructor$/) { my $constructorType = $codeGenerator->StripModule($attribute->signature->type); $constructorType =~ s/Constructor$//; # Constructor attribute is only used by DOMWindow.idl, so it's correct to pass castedThis as the global object # Once JSDOMWrappers have a back-pointer to the globalObject we can pass castedThis->globalObject() push(@implContent, " return JS" . $constructorType . "::getConstructor(exec, castedThis);\n"); } elsif (!@{$attribute->getterExceptions}) { push(@implContent, " UNUSED_PARAM(exec);\n"); my $cacheIndex = 0; if ($attribute->signature->extendedAttributes->{"CachedAttribute"}) { $cacheIndex = $currentCachedAttribute; $currentCachedAttribute++; push(@implContent, " if (JSValue cachedValue = castedThis->getAnonymousValue(" . $className . "::" . $attribute->signature->name . "Slot))\n"); push(@implContent, " return cachedValue;\n"); } if ($svgListPropertyType) { push(@implContent, " JSValue result = " . NativeToJSValue($attribute->signature, 0, $implClassName, "castedThis->impl()->$implGetterFunctionName()", "castedThis") . ";\n"); } elsif ($svgPropertyOrListPropertyType) { push(@implContent, " $svgPropertyOrListPropertyType& imp = castedThis->impl()->propertyReference();\n"); if ($svgPropertyOrListPropertyType eq "float") { # Special case for JSSVGNumber push(@implContent, " JSValue result = " . NativeToJSValue($attribute->signature, 0, $implClassName, "imp", "castedThis") . ";\n"); } else { push(@implContent, " JSValue result = " . NativeToJSValue($attribute->signature, 0, $implClassName, "imp.$implGetterFunctionName()", "castedThis") . ";\n"); } } else { my $getterExpression = "imp->" . $codeGenerator->GetterExpressionPrefix(\%implIncludes, $interfaceName, $attribute) . ")"; my $jsType = NativeToJSValue($attribute->signature, 0, $implClassName, $getterExpression, "castedThis"); push(@implContent, " $implClassName* imp = static_cast<$implClassName*>(castedThis->impl());\n"); if ($codeGenerator->IsSVGAnimatedType($type)) { push(@implContent, " RefPtr<$type> obj = $jsType;\n"); push(@implContent, " JSValue result = toJS(exec, castedThis->globalObject(), obj.get());\n"); } else { push(@implContent, " JSValue result = $jsType;\n"); } } push(@implContent, " castedThis->putAnonymousValue(exec->globalData(), " . $className . "::" . $attribute->signature->name . "Slot, result);\n") if ($attribute->signature->extendedAttributes->{"CachedAttribute"}); push(@implContent, " return result;\n"); } else { push(@implContent, " ExceptionCode ec = 0;\n"); if ($svgPropertyOrListPropertyType) { push(@implContent, " $svgPropertyOrListPropertyType imp(*castedThis->impl());\n"); push(@implContent, " JSC::JSValue result = " . NativeToJSValue($attribute->signature, 0, $implClassName, "imp.$implGetterFunctionName(ec)", "castedThis") . ";\n"); } else { push(@implContent, " $implClassName* imp = static_cast<$implClassName*>(castedThis->impl());\n"); push(@implContent, " JSC::JSValue result = " . NativeToJSValue($attribute->signature, 0, $implClassName, "imp->$implGetterFunctionName(ec)", "castedThis") . ";\n"); } push(@implContent, " setDOMException(exec, ec);\n"); push(@implContent, " return result;\n"); } push(@implContent, "}\n\n"); push(@implContent, "#endif\n") if $attributeConditionalString; push(@implContent, "\n"); } if (!($dataNode->extendedAttributes->{"OmitConstructor"} || $dataNode->extendedAttributes->{"CustomConstructor"})) { my $constructorFunctionName = "js" . $interfaceName . "Constructor"; push(@implContent, "JSValue ${constructorFunctionName}(ExecState* exec, JSValue slotBase, const Identifier&)\n"); push(@implContent, "{\n"); push(@implContent, " ${className}* domObject = static_cast<$className*>(asObject(slotBase));\n"); if ($dataNode->extendedAttributes->{"CheckDomainSecurity"}) { push(@implContent, " if (!domObject->allowsAccessFrom(exec))\n"); push(@implContent, " return jsUndefined();\n"); } push(@implContent, " return ${className}::getConstructor(exec, domObject->globalObject());\n"); push(@implContent, "}\n\n"); } } # Check if we have any writable attributes my $hasReadWriteProperties = 0; foreach my $attribute (@{$dataNode->attributes}) { $hasReadWriteProperties = 1 if $attribute->type !~ /^readonly/; } my $hasSetter = $hasReadWriteProperties || $dataNode->extendedAttributes->{"DelegatingPutFunction"} || $dataNode->extendedAttributes->{"HasCustomIndexSetter"}; if ($hasSetter) { if (!$dataNode->extendedAttributes->{"CustomPutFunction"}) { push(@implContent, "void ${className}::put(ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot)\n"); push(@implContent, "{\n"); if ($dataNode->extendedAttributes->{"HasCustomIndexSetter"}) { push(@implContent, " bool ok;\n"); push(@implContent, " unsigned index = propertyName.toUInt32(ok);\n"); push(@implContent, " if (ok) {\n"); push(@implContent, " indexSetter(exec, index, value);\n"); push(@implContent, " return;\n"); push(@implContent, " }\n"); } if ($dataNode->extendedAttributes->{"DelegatingPutFunction"}) { push(@implContent, " if (putDelegate(exec, propertyName, value, slot))\n"); push(@implContent, " return;\n"); } if ($hasReadWriteProperties) { push(@implContent, " lookupPut<$className, Base>(exec, propertyName, value, " . hashTableAccessor($dataNode->extendedAttributes->{"NoStaticTables"}, $className) . ", this, slot);\n"); } else { push(@implContent, " Base::put(exec, propertyName, value, slot);\n"); } push(@implContent, "}\n\n"); } if ($dataNode->extendedAttributes->{"HasCustomIndexSetter"}) { push(@implContent, "void ${className}::put(ExecState* exec, unsigned propertyName, JSValue value)\n"); push(@implContent, "{\n"); push(@implContent, " indexSetter(exec, propertyName, value);\n"); push(@implContent, " return;\n"); push(@implContent, "}\n\n"); } if ($hasReadWriteProperties) { foreach my $attribute (@{$dataNode->attributes}) { if ($attribute->type !~ /^readonly/) { my $name = $attribute->signature->name; my $type = $codeGenerator->StripModule($attribute->signature->type); my $putFunctionName = "setJS" . $interfaceName . $codeGenerator->WK_ucfirst($name) . ($attribute->signature->type =~ /Constructor$/ ? "Constructor" : ""); my $implSetterFunctionName = $codeGenerator->WK_ucfirst($name); my $attributeConditionalString = GenerateConditionalString($attribute->signature); push(@implContent, "#if ${attributeConditionalString}\n") if $attributeConditionalString; push(@implContent, "void ${putFunctionName}(ExecState* exec, JSObject* thisObject, JSValue value)\n"); push(@implContent, "{\n"); if ($dataNode->extendedAttributes->{"CheckDomainSecurity"} && !$attribute->signature->extendedAttributes->{"DoNotCheckDomainSecurity"}) { if ($interfaceName eq "DOMWindow") { push(@implContent, " if (!static_cast<$className*>(thisObject)->allowsAccessFrom(exec))\n"); } else { push(@implContent, " if (!allowsAccessFromFrame(exec, static_cast<$className*>(thisObject)->impl()->frame()))\n"); } push(@implContent, " return;\n"); } if ($attribute->signature->extendedAttributes->{"Custom"} || $attribute->signature->extendedAttributes->{"JSCCustom"} || $attribute->signature->extendedAttributes->{"CustomSetter"} || $attribute->signature->extendedAttributes->{"JSCCustomSetter"}) { push(@implContent, " static_cast<$className*>(thisObject)->set$implSetterFunctionName(exec, value);\n"); } elsif ($type eq "EventListener") { $implIncludes{"JSEventListener.h"} = 1; push(@implContent, " UNUSED_PARAM(exec);\n"); push(@implContent, " ${className}* castedThis = static_cast<${className}*>(thisObject);\n"); my $windowEventListener = $attribute->signature->extendedAttributes->{"WindowEventListener"}; if ($windowEventListener) { push(@implContent, " JSDOMGlobalObject* globalObject = castedThis->globalObject();\n"); } push(@implContent, " $implClassName* imp = static_cast<$implClassName*>(castedThis->impl());\n"); if ((($interfaceName eq "DOMWindow") or ($interfaceName eq "WorkerContext")) and $name eq "onerror") { $implIncludes{"JSErrorHandler.h"} = 1; push(@implContent, " imp->set$implSetterFunctionName(createJSErrorHandler(exec, value, thisObject));\n"); } else { push(@implContent, GenerateAttributeEventListenerCall($className, $implSetterFunctionName, $windowEventListener)); } } elsif ($attribute->signature->type =~ /Constructor$/) { my $constructorType = $attribute->signature->type; $constructorType =~ s/Constructor$//; if ($constructorType ne "DOMObject") { $implIncludes{"JS" . $constructorType . ".h"} = 1; } push(@implContent, " // Shadowing a built-in constructor\n"); if ($interfaceName eq "DOMWindow" && $className eq "JSblah") { push(@implContent, " static_cast<$className*>(thisObject)->putDirect(exec->globalData(), exec->propertyNames().constructor, value);\n"); } else { push(@implContent, " static_cast<$className*>(thisObject)->putDirect(exec->globalData(), Identifier(exec, \"$name\"), value);\n"); } } elsif ($attribute->signature->extendedAttributes->{"Replaceable"}) { push(@implContent, " // Shadowing a built-in object\n"); push(@implContent, " static_cast<$className*>(thisObject)->putDirect(exec->globalData(), Identifier(exec, \"$name\"), value);\n"); } else { push(@implContent, " $className* castedThis = static_cast<$className*>(thisObject);\n"); push(@implContent, " $implType* imp = static_cast<$implType*>(castedThis->impl());\n"); push(@implContent, " ExceptionCode ec = 0;\n") if @{$attribute->setterExceptions}; # If the "StrictTypeChecking" extended attribute is present, and the attribute's type is an # interface type, then if the incoming value does not implement that interface, a TypeError # is thrown rather than silently passing NULL to the C++ code. # Per the Web IDL and ECMAScript specifications, incoming values can always be converted to # both strings and numbers, so do not throw TypeError if the attribute is of these types. if ($attribute->signature->extendedAttributes->{"StrictTypeChecking"}) { $implIncludes{"<runtime/Error.h>"} = 1; my $argType = $attribute->signature->type; if (!IsNativeType($argType)) { push(@implContent, " if (!value.isUndefinedOrNull() && !value.inherits(&JS${argType}::s_info)) {\n"); push(@implContent, " throwVMTypeError(exec);\n"); push(@implContent, " return;\n"); push(@implContent, " };\n"); } } my $nativeValue = JSValueToNative($attribute->signature, "value"); if ($svgPropertyOrListPropertyType) { if ($svgPropertyType) { push(@implContent, " if (imp->role() == AnimValRole) {\n"); push(@implContent, " setDOMException(exec, NO_MODIFICATION_ALLOWED_ERR);\n"); push(@implContent, " return;\n"); push(@implContent, " }\n"); } push(@implContent, " $svgPropertyOrListPropertyType& podImp = imp->propertyReference();\n"); if ($svgPropertyOrListPropertyType eq "float") { # Special case for JSSVGNumber push(@implContent, " podImp = $nativeValue;\n"); } else { push(@implContent, " podImp.set$implSetterFunctionName($nativeValue"); push(@implContent, ", ec") if @{$attribute->setterExceptions}; push(@implContent, ");\n"); push(@implContent, " setDOMException(exec, ec);\n") if @{$attribute->setterExceptions}; } if ($svgPropertyType) { if (@{$attribute->setterExceptions}) { push(@implContent, " if (!ec)\n"); push(@implContent, " imp->commitChange();\n"); } else { push(@implContent, " imp->commitChange();\n"); } } } else { my $setterExpressionPrefix = $codeGenerator->SetterExpressionPrefix(\%implIncludes, $interfaceName, $attribute); push(@implContent, " imp->$setterExpressionPrefix$nativeValue"); push(@implContent, ", ec") if @{$attribute->setterExceptions}; push(@implContent, ");\n"); push(@implContent, " setDOMException(exec, ec);\n") if @{$attribute->setterExceptions}; } } push(@implContent, "}\n\n"); push(@implContent, "#endif\n") if $attributeConditionalString; push(@implContent, "\n"); } } } if ($dataNode->extendedAttributes->{"ReplaceableConstructor"}) { my $constructorFunctionName = "setJS" . $interfaceName . "Constructor"; push(@implContent, "void ${constructorFunctionName}(ExecState* exec, JSObject* thisObject, JSValue value)\n"); push(@implContent, "{\n"); if ($dataNode->extendedAttributes->{"CheckDomainSecurity"}) { if ($interfaceName eq "DOMWindow") { push(@implContent, " if (!static_cast<$className*>(thisObject)->allowsAccessFrom(exec))\n"); } else { push(@implContent, " if (!allowsAccessFromFrame(exec, static_cast<$className*>(thisObject)->impl()->frame()))\n"); } push(@implContent, " return;\n"); } push(@implContent, " // Shadowing a built-in constructor\n"); if ($interfaceName eq "DOMWindow") { push(@implContent, " static_cast<$className*>(thisObject)->putDirect(exec->globalData(), exec->propertyNames().constructor, value);\n"); } else { push(@implContent, " static_cast<$className*>(thisObject)->putDirect(exec->globalData(), Identifier(exec, \"$name\"), value);\n"); } push(@implContent, "}\n\n"); } } } if (($dataNode->extendedAttributes->{"HasIndexGetter"} || $dataNode->extendedAttributes->{"HasCustomIndexGetter"} || $dataNode->extendedAttributes->{"HasNumericIndexGetter"}) && !$dataNode->extendedAttributes->{"CustomGetPropertyNames"}) { push(@implContent, "void ${className}::getOwnPropertyNames(ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)\n"); push(@implContent, "{\n"); if ($dataNode->extendedAttributes->{"HasIndexGetter"} || $dataNode->extendedAttributes->{"HasCustomIndexGetter"} || $dataNode->extendedAttributes->{"HasNumericIndexGetter"}) { push(@implContent, " for (unsigned i = 0; i < static_cast<${implClassName}*>(impl())->length(); ++i)\n"); push(@implContent, " propertyNames.add(Identifier::from(exec, i));\n"); } push(@implContent, " Base::getOwnPropertyNames(exec, propertyNames, mode);\n"); push(@implContent, "}\n\n"); } if (!($dataNode->extendedAttributes->{"OmitConstructor"} || $dataNode->extendedAttributes->{"CustomConstructor"})) { push(@implContent, "JSValue ${className}::getConstructor(ExecState* exec, JSGlobalObject* globalObject)\n{\n"); push(@implContent, " return getDOMConstructor<${className}Constructor>(exec, static_cast<JSDOMGlobalObject*>(globalObject));\n"); push(@implContent, "}\n\n"); } # Functions if ($numFunctions > 0) { foreach my $function (@{$dataNode->functions}) { AddIncludesForType($function->signature->type); my $functionName = $codeGenerator->WK_lcfirst($className) . "PrototypeFunction" . $codeGenerator->WK_ucfirst($function->signature->name); if ($function->{overloads} && @{$function->{overloads}} > 1) { # Append a number to an overloaded method's name to make it unique: $functionName = $functionName . $function->{overloadIndex}; # Make this function static to avoid compiler warnings, since we # don't generate a prototype for it in the header. push(@implContent, "static "); } my $functionImplementationName = $function->signature->extendedAttributes->{"ImplementationFunction"} || $codeGenerator->WK_lcfirst($function->signature->name); push(@implContent, "EncodedJSValue JSC_HOST_CALL ${functionName}(ExecState* exec)\n"); push(@implContent, "{\n"); $implIncludes{"<runtime/Error.h>"} = 1; if ($interfaceName eq "DOMWindow") { push(@implContent, " $className* castedThis = toJSDOMWindow(exec->hostThisValue().toThisObject(exec));\n"); push(@implContent, " if (!castedThis)\n"); push(@implContent, " return throwVMTypeError(exec);\n"); } elsif ($dataNode->extendedAttributes->{"IsWorkerContext"}) { push(@implContent, " $className* castedThis = to${className}(exec->hostThisValue().toThisObject(exec));\n"); push(@implContent, " if (!castedThis)\n"); push(@implContent, " return throwVMTypeError(exec);\n"); } else { push(@implContent, " JSValue thisValue = exec->hostThisValue();\n"); push(@implContent, " if (!thisValue.inherits(&${className}::s_info))\n"); push(@implContent, " return throwVMTypeError(exec);\n"); push(@implContent, " $className* castedThis = static_cast<$className*>(asObject(thisValue));\n"); } if ($dataNode->extendedAttributes->{"CheckDomainSecurity"} && !$function->signature->extendedAttributes->{"DoNotCheckDomainSecurity"}) { push(@implContent, " if (!castedThis->allowsAccessFrom(exec))\n"); push(@implContent, " return JSValue::encode(jsUndefined());\n"); } if ($function->signature->extendedAttributes->{"Custom"} || $function->signature->extendedAttributes->{"JSCCustom"}) { push(@implContent, " return JSValue::encode(castedThis->" . $functionImplementationName . "(exec));\n"); } else { push(@implContent, " $implType* imp = static_cast<$implType*>(castedThis->impl());\n"); if ($svgPropertyType) { push(@implContent, " if (imp->role() == AnimValRole) {\n"); push(@implContent, " setDOMException(exec, NO_MODIFICATION_ALLOWED_ERR);\n"); push(@implContent, " return JSValue::encode(jsUndefined());\n"); push(@implContent, " }\n"); push(@implContent, " $svgPropertyType& podImp = imp->propertyReference();\n"); } my $numParameters = @{$function->parameters}; my $requiresAllArguments = $function->signature->extendedAttributes->{"RequiresAllArguments"}; if ($requiresAllArguments) { my $numMandatoryParams = @{$function->parameters}; foreach my $param (reverse(@{$function->parameters})) { if ($param->extendedAttributes->{"Optional"}) { $numMandatoryParams--; } else { last; } } push(@implContent, " if (exec->argumentCount() < $numMandatoryParams)\n"); if ($requiresAllArguments eq "Raise") { push(@implContent, " return throwVMError(exec, createSyntaxError(exec, \"Not enough arguments\"));\n"); } else { push(@implContent, " return JSValue::encode(jsUndefined());\n"); } } if (@{$function->raisesExceptions}) { push(@implContent, " ExceptionCode ec = 0;\n"); } if ($function->signature->extendedAttributes->{"SVGCheckSecurityDocument"}) { push(@implContent, " if (!checkNodeSecurity(exec, imp->getSVGDocument(" . (@{$function->raisesExceptions} ? "ec" : "") .")))\n"); push(@implContent, " return JSValue::encode(jsUndefined());\n"); $implIncludes{"JSDOMBinding.h"} = 1; } if ($function->signature->name eq "addEventListener") { push(@implContent, GenerateEventListenerCall($className, "add")); } elsif ($function->signature->name eq "removeEventListener") { push(@implContent, GenerateEventListenerCall($className, "remove")); } else { my $argsIndex = 0; my $paramIndex = 0; my $functionString = (($svgPropertyOrListPropertyType and !$svgListPropertyType) ? "podImp." : "imp->") . $functionImplementationName . "("; my $hasOptionalArguments = 0; if ($function->signature->extendedAttributes->{"CustomArgumentHandling"}) { push(@implContent, " RefPtr<ScriptArguments> scriptArguments(createScriptArguments(exec, $numParameters));\n"); push(@implContent, " size_t maxStackSize = imp->shouldCaptureFullStackTrace() ? ScriptCallStack::maxCallStackSizeToCapture : 1;\n"); push(@implContent, " RefPtr<ScriptCallStack> callStack(createScriptCallStack(exec, maxStackSize));\n"); $implIncludes{"ScriptArguments.h"} = 1; $implIncludes{"ScriptCallStack.h"} = 1; $implIncludes{"ScriptCallStackFactory.h"} = 1; } my $callWith = $function->signature->extendedAttributes->{"CallWith"}; if ($callWith) { my $callWithArg = "COMPILE_ASSERT(false)"; if ($callWith eq "DynamicFrame") { push(@implContent, " Frame* dynamicFrame = toDynamicFrame(exec);\n"); push(@implContent, " if (!dynamicFrame)\n"); push(@implContent, " return JSValue::encode(jsUndefined());\n"); $callWithArg = "dynamicFrame"; } elsif ($callWith eq "ScriptState") { $callWithArg = "exec"; } elsif ($callWith eq "ScriptExecutionContext") { push(@implContent, " ScriptExecutionContext* scriptContext = static_cast<JSDOMGlobalObject*>(exec->lexicalGlobalObject())->scriptExecutionContext();\n"); push(@implContent, " if (!scriptContext)\n"); push(@implContent, " return JSValue::encode(jsUndefined());\n"); $callWithArg = "scriptContext"; } $functionString .= ", " if $paramIndex; $functionString .= $callWithArg; $paramIndex++; } $implIncludes{"ExceptionCode.h"} = 1; $implIncludes{"JSDOMBinding.h"} = 1; foreach my $parameter (@{$function->parameters}) { # Optional callbacks should be treated differently, because they always have a default value (0), # and we can reduce the number of overloaded functions that take a different number of parameters. if ($parameter->extendedAttributes->{"Optional"} && !$parameter->extendedAttributes->{"Callback"}) { # Generate early call if there are enough parameters. if (!$hasOptionalArguments) { push(@implContent, "\n int argsCount = exec->argumentCount();\n"); $hasOptionalArguments = 1; } push(@implContent, " if (argsCount <= $argsIndex) {\n"); GenerateImplementationFunctionCall($function, $functionString, $paramIndex, " " x 2, $svgPropertyType, $implClassName); push(@implContent, " }\n\n"); } my $name = $parameter->name; my $argType = $codeGenerator->StripModule($parameter->type); if ($argType eq "XPathNSResolver") { push(@implContent, " RefPtr<XPathNSResolver> customResolver;\n"); push(@implContent, " XPathNSResolver* resolver = toXPathNSResolver(exec->argument($argsIndex));\n"); push(@implContent, " if (!resolver) {\n"); push(@implContent, " customResolver = JSCustomXPathNSResolver::create(exec, exec->argument($argsIndex));\n"); push(@implContent, " if (exec->hadException())\n"); push(@implContent, " return JSValue::encode(jsUndefined());\n"); push(@implContent, " resolver = customResolver.get();\n"); push(@implContent, " }\n"); } elsif ($parameter->extendedAttributes->{"Callback"}) { my $callbackClassName = GetCallbackClassName($argType); $implIncludes{"$callbackClassName.h"} = 1; if ($parameter->extendedAttributes->{"Optional"}) { push(@implContent, " RefPtr<$argType> $name;\n"); push(@implContent, " if (exec->argumentCount() > $argsIndex && !exec->argument($argsIndex).isNull() && !exec->argument($argsIndex).isUndefined()) {\n"); push(@implContent, " if (!exec->argument($argsIndex).isObject()) {\n"); push(@implContent, " setDOMException(exec, TYPE_MISMATCH_ERR);\n"); push(@implContent, " return JSValue::encode(jsUndefined());\n"); push(@implContent, " }\n"); push(@implContent, " $name = ${callbackClassName}::create(asObject(exec->argument($argsIndex)), castedThis->globalObject());\n"); push(@implContent, " }\n"); } else { push(@implContent, " if (exec->argumentCount() <= $argsIndex || !exec->argument($argsIndex).isObject()) {\n"); push(@implContent, " setDOMException(exec, TYPE_MISMATCH_ERR);\n"); push(@implContent, " return JSValue::encode(jsUndefined());\n"); push(@implContent, " }\n"); push(@implContent, " RefPtr<$argType> $name = ${callbackClassName}::create(asObject(exec->argument($argsIndex)), castedThis->globalObject());\n"); } } else { # If the "StrictTypeChecking" extended attribute is present, and the argument's type is an # interface type, then if the incoming value does not implement that interface, a TypeError # is thrown rather than silently passing NULL to the C++ code. # Per the Web IDL and ECMAScript semantics, incoming values can always be converted to both # strings and numbers, so do not throw TypeError if the argument is of these types. if ($function->signature->extendedAttributes->{"StrictTypeChecking"}) { $implIncludes{"<runtime/Error.h>"} = 1; my $argValue = "exec->argument($argsIndex)"; if (!IsNativeType($argType)) { push(@implContent, " if (exec->argumentCount() > $argsIndex && !${argValue}.isUndefinedOrNull() && !${argValue}.inherits(&JS${argType}::s_info))\n"); push(@implContent, " return throwVMTypeError(exec);\n"); } } push(@implContent, " " . GetNativeTypeFromSignature($parameter) . " $name(" . JSValueToNative($parameter, "exec->argument($argsIndex)") . ");\n"); # If a parameter is "an index" and it's negative it should throw an INDEX_SIZE_ERR exception. # But this needs to be done in the bindings, because the type is unsigned and the fact that it # was negative will be lost by the time we're inside the DOM. if ($parameter->extendedAttributes->{"IsIndex"}) { push(@implContent, " if ($name < 0) {\n"); push(@implContent, " setDOMException(exec, INDEX_SIZE_ERR);\n"); push(@implContent, " return JSValue::encode(jsUndefined());\n"); push(@implContent, " }\n"); } # Check if the type conversion succeeded. push(@implContent, " if (exec->hadException())\n"); push(@implContent, " return JSValue::encode(jsUndefined());\n"); if ($codeGenerator->IsSVGTypeNeedingTearOff($argType) and not $implClassName =~ /List$/) { push(@implContent, " if (!$name) {\n"); push(@implContent, " setDOMException(exec, TYPE_MISMATCH_ERR);\n"); push(@implContent, " return JSValue::encode(jsUndefined());\n"); push(@implContent, " }\n"); } } $functionString .= ", " if $paramIndex; if ($argType eq "NodeFilter") { $functionString .= "$name.get()"; } elsif ($codeGenerator->IsSVGTypeNeedingTearOff($argType) and not $implClassName =~ /List$/) { $functionString .= "$name->propertyReference()"; } else { $functionString .= $name; } $argsIndex++; $paramIndex++; } if ($function->signature->extendedAttributes->{"NeedsUserGestureCheck"}) { $functionString .= ", " if $paramIndex; $functionString .= "processingUserGesture()"; $paramIndex++; } push(@implContent, "\n"); GenerateImplementationFunctionCall($function, $functionString, $paramIndex, " ", $svgPropertyType, $implClassName); } } push(@implContent, "}\n\n"); if ($function->{overloads} && @{$function->{overloads}} > 1 && $function->{overloadIndex} == @{$function->{overloads}}) { # Generate a function dispatching call to the rest of the overloads. GenerateOverloadedPrototypeFunction($function, $dataNode, $implClassName); } } } if ($numConstants > 0) { push(@implContent, "// Constant getters\n\n"); foreach my $constant (@{$dataNode->constants}) { my $getter = "js" . $interfaceName . $codeGenerator->WK_ucfirst($constant->name); # FIXME: this casts into int to match our previous behavior which turned 0xFFFFFFFF in -1 for NodeFilter.SHOW_ALL push(@implContent, "JSValue ${getter}(ExecState* exec, JSValue, const Identifier&)\n"); push(@implContent, "{\n"); if ($constant->type eq "DOMString") { push(@implContent, " return jsStringOrNull(exec, String(" . $constant->value . "));\n"); } else { push(@implContent, " UNUSED_PARAM(exec);\n"); push(@implContent, " return jsNumber(static_cast<int>(" . $constant->value . "));\n"); } push(@implContent, "}\n\n"); } } if ($dataNode->extendedAttributes->{"HasIndexGetter"}) { push(@implContent, "\nJSValue ${className}::indexGetter(ExecState* exec, JSValue slotBase, unsigned index)\n"); push(@implContent, "{\n"); push(@implContent, " ${className}* thisObj = static_cast<$className*>(asObject(slotBase));\n"); if (IndexGetterReturnsStrings($implClassName)) { $implIncludes{"KURL.h"} = 1; push(@implContent, " return jsStringOrNull(exec, thisObj->impl()->item(index));\n"); } else { push(@implContent, " return toJS(exec, thisObj->globalObject(), static_cast<$implClassName*>(thisObj->impl())->item(index));\n"); } push(@implContent, "}\n\n"); if ($interfaceName eq "HTMLCollection" or $interfaceName eq "HTMLAllCollection") { $implIncludes{"JSNode.h"} = 1; $implIncludes{"Node.h"} = 1; } } if ($dataNode->extendedAttributes->{"HasNumericIndexGetter"}) { push(@implContent, "\nJSValue ${className}::getByIndex(ExecState*, unsigned index)\n"); push(@implContent, "{\n"); push(@implContent, " return jsNumber(static_cast<$implClassName*>(impl())->item(index));\n"); push(@implContent, "}\n\n"); if ($interfaceName eq "HTMLCollection" or $interfaceName eq "HTMLAllCollection") { $implIncludes{"JSNode.h"} = 1; $implIncludes{"Node.h"} = 1; } } if ($dataNode->extendedAttributes->{"GenerateIsReachable"} || $dataNode->extendedAttributes->{"ActiveDOMObject"}) { push(@implContent, "static inline bool isObservable(JS${implType}* js${implType})\n"); push(@implContent, "{\n"); push(@implContent, " if (js${implType}->hasCustomProperties())\n"); push(@implContent, " return true;\n"); if ($eventTarget) { push(@implContent, " if (js${implType}->impl()->hasEventListeners())\n"); push(@implContent, " return true;\n"); } push(@implContent, " return false;\n"); push(@implContent, "}\n\n"); push(@implContent, "bool JS${implType}Owner::isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown> handle, void*, SlotVisitor& visitor)\n"); push(@implContent, "{\n"); push(@implContent, " JS${implType}* js${implType} = static_cast<JS${implType}*>(handle.get().asCell());\n"); # All ActiveDOMObjects implement hasPendingActivity(), but not all of them # increment their C++ reference counts when hasPendingActivity() becomes # true. As a result, ActiveDOMObjects can be prematurely destroyed before # their pending activities complete. To wallpaper over this bug, JavaScript # wrappers unconditionally keep ActiveDOMObjects with pending activity alive. # FIXME: Fix this lifetime issue in the DOM, and move this hasPendingActivity # check below the isObservable check. if ($dataNode->extendedAttributes->{"ActiveDOMObject"}) { push(@implContent, " if (js${implType}->impl()->hasPendingActivity())\n"); push(@implContent, " return true;\n"); } push(@implContent, " if (!isObservable(js${implType}))\n"); push(@implContent, " return false;\n"); if ($dataNode->extendedAttributes->{"GenerateIsReachable"}) { my $rootString; if ($dataNode->extendedAttributes->{"GenerateIsReachable"} eq "Impl") { $rootString = " ${implType}* root = js${implType}->impl();\n"; } elsif ($dataNode->extendedAttributes->{"GenerateIsReachable"} eq "ImplContext") { $rootString = " WebGLRenderingContext* root = js${implType}->impl()->context();\n"; } elsif ($dataNode->extendedAttributes->{"GenerateIsReachable"} eq "ImplFrame") { $rootString = " Frame* root = js${implType}->impl()->frame();\n"; $rootString .= " if (!root)\n"; $rootString .= " return false;\n"; } elsif ($dataNode->extendedAttributes->{"GenerateIsReachable"} eq "ImplDocument") { $rootString = " Document* root = js${implType}->impl()->document();\n"; $rootString .= " if (!root)\n"; $rootString .= " return false;\n"; } elsif ($dataNode->extendedAttributes->{"GenerateIsReachable"} eq "ImplElementRoot") { $rootString = " Element* element = js${implType}->impl()->element();\n"; $rootString .= " if (!element)\n"; $rootString .= " return false;\n"; $rootString .= " void* root = WebCore::root(element);\n"; } elsif ($interfaceName eq "CanvasRenderingContext") { $rootString = " void* root = WebCore::root(js${implType}->impl()->canvas());\n"; } elsif ($interfaceName eq "HTMLCollection") { $rootString = " void* root = WebCore::root(js${implType}->impl()->base());\n"; } else { $rootString = " void* root = WebCore::root(js${implType}->impl());\n"; } push(@implContent, $rootString); push(@implContent, " return visitor.containsOpaqueRoot(root);\n"); } else { push(@implContent, " UNUSED_PARAM(visitor);\n"); push(@implContent, " return false;\n"); } push(@implContent, "}\n\n"); } if (!$dataNode->extendedAttributes->{"CustomFinalize"} && ($dataNode->extendedAttributes->{"GenerateIsReachable"} || $dataNode->extendedAttributes->{"CustomIsReachable"} || $dataNode->extendedAttributes->{"ActiveDOMObject"})) { push(@implContent, "void JS${implType}Owner::finalize(JSC::Handle<JSC::Unknown> handle, void* context)\n"); push(@implContent, "{\n"); push(@implContent, " JS${implType}* js${implType} = static_cast<JS${implType}*>(handle.get().asCell());\n"); push(@implContent, " DOMWrapperWorld* world = static_cast<DOMWrapperWorld*>(context);\n"); push(@implContent, " uncacheWrapper(world, js${implType}->impl(), js${implType});\n"); push(@implContent, "}\n\n"); } if ((!$hasParent or $dataNode->extendedAttributes->{"GenerateToJS"}) and !$dataNode->extendedAttributes->{"CustomToJS"}) { push(@implContent, "JSC::JSValue toJS(JSC::ExecState* exec, JSDOMGlobalObject* globalObject, $implType* impl)\n"); push(@implContent, "{\n"); if ($svgPropertyType) { push(@implContent, " return wrap<$className, $implType>(exec, globalObject, impl);\n"); } else { push(@implContent, " return wrap<$className>(exec, globalObject, impl);\n"); } push(@implContent, "}\n\n"); } if ((!$hasParent or $dataNode->extendedAttributes->{"GenerateNativeConverter"}) and !$dataNode->extendedAttributes->{"CustomNativeConverter"}) { push(@implContent, "$implType* to${interfaceName}(JSC::JSValue value)\n"); push(@implContent, "{\n"); push(@implContent, " return value.inherits(&${className}::s_info) ? static_cast<$className*>(asObject(value))->impl() : 0"); push(@implContent, ";\n}\n"); } push(@implContent, "\n}\n"); my $conditionalString = GenerateConditionalString($dataNode); push(@implContent, "\n#endif // ${conditionalString}\n") if $conditionalString;}sub GenerateCallbackHeader{ my $object = shift; my $dataNode = shift; my $interfaceName = $dataNode->name; my $className = "JS$interfaceName"; # - Add default header template and header protection push(@headerContentHeader, GenerateHeaderContentHeader($dataNode)); $headerIncludes{"ActiveDOMCallback.h"} = 1; $headerIncludes{"$interfaceName.h"} = 1; $headerIncludes{"JSCallbackData.h"} = 1; $headerIncludes{"<wtf/Forward.h>"} = 1; push(@headerContent, "\nnamespace WebCore {\n\n"); push(@headerContent, "class $className : public $interfaceName, public ActiveDOMCallback {\n"); push(@headerContent, "public:\n"); # The static create() method. push(@headerContent, " static PassRefPtr<$className> create(JSC::JSObject* callback, JSDOMGlobalObject* globalObject)\n"); push(@headerContent, " {\n"); push(@headerContent, " return adoptRef(new $className(callback, globalObject));\n"); push(@headerContent, " }\n\n"); # Destructor push(@headerContent, " virtual ~$className();\n"); # Functions my $numFunctions = @{$dataNode->functions}; if ($numFunctions > 0) { push(@headerContent, "\n // Functions\n"); foreach my $function (@{$dataNode->functions}) { my @params = @{$function->parameters}; if (!$function->signature->extendedAttributes->{"Custom"} && !(GetNativeType($function->signature->type) eq "bool")) { push(@headerContent, " COMPILE_ASSERT(false)"); } push(@headerContent, " virtual " . GetNativeType($function->signature->type) . " " . $function->signature->name . "("); my @args = (); foreach my $param (@params) { push(@args, GetNativeType($param->type) . " " . $param->name); } push(@headerContent, join(", ", @args)); push(@headerContent, ");\n"); } } push(@headerContent, "\nprivate:\n"); # Constructor push(@headerContent, " $className(JSC::JSObject* callback, JSDOMGlobalObject*);\n\n"); # Private members push(@headerContent, " JSCallbackData* m_data;\n"); push(@headerContent, "};\n\n"); push(@headerContent, "} // namespace WebCore\n\n"); my $conditionalString = GenerateConditionalString($dataNode); push(@headerContent, "#endif // ${conditionalString}\n\n") if $conditionalString; push(@headerContent, "#endif\n");}sub GenerateCallbackImplementation{ my ($object, $dataNode) = @_; my $interfaceName = $dataNode->name; my $className = "JS$interfaceName"; # - Add default header template push(@implContentHeader, GenerateImplementationContentHeader($dataNode)); $implIncludes{"ScriptExecutionContext.h"} = 1; $implIncludes{"<runtime/JSLock.h>"} = 1; $implIncludes{"<wtf/MainThread.h>"} = 1; @implContent = (); push(@implContent, "\nusing namespace JSC;\n\n"); push(@implContent, "namespace WebCore {\n\n"); # Constructor push(@implContent, "${className}::${className}(JSObject* callback, JSDOMGlobalObject* globalObject)\n"); push(@implContent, " : ActiveDOMCallback(globalObject->scriptExecutionContext())\n"); push(@implContent, " , m_data(new JSCallbackData(callback, globalObject))\n"); push(@implContent, "{\n"); push(@implContent, "}\n\n"); # Destructor push(@implContent, "${className}::~${className}()\n"); push(@implContent, "{\n"); push(@implContent, " ScriptExecutionContext* context = scriptExecutionContext();\n"); push(@implContent, " // When the context is destroyed, all tasks with a reference to a callback\n"); push(@implContent, " // should be deleted. So if the context is 0, we are on the context thread.\n"); push(@implContent, " if (!context || context->isContextThread())\n"); push(@implContent, " delete m_data;\n"); push(@implContent, " else\n"); push(@implContent, " context->postTask(DeleteCallbackDataTask::create(m_data));\n"); push(@implContent, "#ifndef NDEBUG\n"); push(@implContent, " m_data = 0;\n"); push(@implContent, "#endif\n"); push(@implContent, "}\n"); # Functions my $numFunctions = @{$dataNode->functions}; if ($numFunctions > 0) { push(@implContent, "\n// Functions\n"); foreach my $function (@{$dataNode->functions}) { my @params = @{$function->parameters}; if ($function->signature->extendedAttributes->{"Custom"} || !(GetNativeType($function->signature->type) eq "bool")) { next; } AddIncludesForType($function->signature->type); push(@implContent, "\n" . GetNativeType($function->signature->type) . " ${className}::" . $function->signature->name . "("); my @args = (); foreach my $param (@params) { AddIncludesForType($param->type, 1); push(@args, GetNativeType($param->type) . " " . $param->name); } push(@implContent, join(", ", @args)); push(@implContent, ")\n"); push(@implContent, "{\n"); push(@implContent, " if (!canInvokeCallback())\n"); push(@implContent, " return true;\n\n"); push(@implContent, " RefPtr<$className> protect(this);\n\n"); push(@implContent, " JSLock lock(SilenceAssertionsOnly);\n\n"); push(@implContent, " ExecState* exec = m_data->globalObject()->globalExec();\n"); push(@implContent, " MarkedArgumentBuffer args;\n"); foreach my $param (@params) { my $paramName = $param->name; if ($param->type eq "DOMString") { push(@implContent, " args.append(jsString(exec, ${paramName}));\n"); } else { push(@implContent, " args.append(toJS(exec, m_data->globalObject(), ${paramName}));\n"); } } push(@implContent, "\n bool raisedException = false;\n"); push(@implContent, " m_data->invokeCallback(args, &raisedException);\n"); push(@implContent, " return !raisedException;\n"); push(@implContent, "}\n"); } } push(@implContent, "\n}\n"); my $conditionalString = GenerateConditionalString($dataNode); push(@implContent, "\n#endif // ${conditionalString}\n") if $conditionalString;}sub GenerateImplementationFunctionCall(){ my $function = shift; my $functionString = shift; my $paramIndex = shift; my $indent = shift; my $svgPropertyType = shift; my $implClassName = shift; if ($function->signature->extendedAttributes->{"CustomArgumentHandling"}) { $functionString .= ", " if $paramIndex; $paramIndex += 2; $functionString .= "scriptArguments, callStack"; } if (@{$function->raisesExceptions}) { $functionString .= ", " if $paramIndex; $functionString .= "ec"; } $functionString .= ")"; if ($function->signature->type eq "void") { push(@implContent, $indent . "$functionString;\n"); push(@implContent, $indent . "setDOMException(exec, ec);\n") if @{$function->raisesExceptions}; if ($svgPropertyType) { if (@{$function->raisesExceptions}) { push(@implContent, $indent . "if (!ec)\n"); push(@implContent, $indent . " imp->commitChange();\n"); } else { push(@implContent, $indent . "imp->commitChange();\n"); } } push(@implContent, $indent . "return JSValue::encode(jsUndefined());\n"); } else { push(@implContent, "\n" . $indent . "JSC::JSValue result = " . NativeToJSValue($function->signature, 1, $implClassName, $functionString, "castedThis") . ";\n"); push(@implContent, $indent . "setDOMException(exec, ec);\n") if @{$function->raisesExceptions}; $callWith = $function->signature->extendedAttributes->{"CallWith"}; if ($callWith and $callWith eq "ScriptState") { push(@implContent, $indent . "if (exec->hadException())\n"); push(@implContent, $indent . " return JSValue::encode(jsUndefined());\n"); } push(@implContent, $indent . "return JSValue::encode(result);\n"); }}sub GetNativeTypeFromSignature{ my $signature = shift; my $type = $codeGenerator->StripModule($signature->type); if ($type eq "unsigned long" and $signature->extendedAttributes->{"IsIndex"}) { # Special-case index arguments because we need to check that they aren't < 0. return "int"; } return GetNativeType($type);}my %nativeType = ( "CompareHow" => "Range::CompareHow", "DOMString" => "const String&", "DOMObject" => "ScriptValue", "NodeFilter" => "RefPtr<NodeFilter>", "SerializedScriptValue" => "RefPtr<SerializedScriptValue>", "IDBKey" => "RefPtr<IDBKey>", "boolean" => "bool", "double" => "double", "float" => "float", "short" => "short", "long" => "int", "unsigned long" => "unsigned", "unsigned short" => "unsigned short", "long long" => "long long", "unsigned long long" => "unsigned long long", "MediaQueryListListener" => "RefPtr<MediaQueryListListener>");sub GetNativeType{ my $type = shift; my $svgNativeType = $codeGenerator->GetSVGTypeNeedingTearOff($type); return "${svgNativeType}*" if $svgNativeType; return $nativeType{$type} if exists $nativeType{$type}; # For all other types, the native type is a pointer with same type name as the IDL type. return "${type}*";}sub GetSVGPropertyTypes{ my $implType = shift; my $svgPropertyType; my $svgListPropertyType; my $svgNativeType; return ($svgPropertyType, $svgListPropertyType, $svgNativeType) if not $implType =~ /SVG/; $svgNativeType = $codeGenerator->GetSVGTypeNeedingTearOff($implType); return ($svgPropertyType, $svgListPropertyType, $svgNativeType) if not $svgNativeType; # Append space to avoid compilation errors when using PassRefPtr<$svgNativeType> $svgNativeType = "$svgNativeType "; my $svgWrappedNativeType = $codeGenerator->GetSVGWrappedTypeNeedingTearOff($implType); if ($svgNativeType =~ /SVGPropertyTearOff/) { $svgPropertyType = $svgWrappedNativeType; $headerIncludes{"$svgWrappedNativeType.h"} = 1; $headerIncludes{"SVGAnimatedPropertyTearOff.h"} = 1; } elsif ($svgNativeType =~ /SVGListPropertyTearOff/ or $svgNativeType =~ /SVGStaticListPropertyTearOff/) { $svgListPropertyType = $svgWrappedNativeType; $headerIncludes{"$svgWrappedNativeType.h"} = 1; $headerIncludes{"SVGAnimatedListPropertyTearOff.h"} = 1; } elsif ($svgNativeType =~ /SVGTransformListPropertyTearOff/) { $svgListPropertyType = $svgWrappedNativeType; $headerIncludes{"$svgWrappedNativeType.h"} = 1; $headerIncludes{"SVGAnimatedListPropertyTearOff.h"} = 1; $headerIncludes{"SVGTransformListPropertyTearOff.h"} = 1; } elsif ($svgNativeType =~ /SVGPathSegListPropertyTearOff/) { $svgListPropertyType = $svgWrappedNativeType; $headerIncludes{"$svgWrappedNativeType.h"} = 1; $headerIncludes{"SVGAnimatedListPropertyTearOff.h"} = 1; $headerIncludes{"SVGPathSegListPropertyTearOff.h"} = 1; } return ($svgPropertyType, $svgListPropertyType, $svgNativeType);}sub IsNativeType{ my $type = shift; return exists $nativeType{$type};}sub JSValueToNative{ my $signature = shift; my $value = shift; my $type = $codeGenerator->StripModule($signature->type); return "$value.toBoolean(exec)" if $type eq "boolean"; return "$value.toNumber(exec)" if $type eq "double"; return "$value.toFloat(exec)" if $type eq "float"; return "$value.toInt32(exec)" if $type eq "long" or $type eq "short"; return "$value.toUInt32(exec)" if $type eq "unsigned long" or $type eq "unsigned short"; return "static_cast<$type>($value.toInteger(exec))" if $type eq "long long" or $type eq "unsigned long long"; return "valueToDate(exec, $value)" if $type eq "Date"; return "static_cast<Range::CompareHow>($value.toInt32(exec))" if $type eq "CompareHow"; if ($type eq "DOMString") { return "valueToStringWithNullCheck(exec, $value)" if $signature->extendedAttributes->{"ConvertNullToNullString"} || $signature->extendedAttributes->{"Reflect"}; return "valueToStringWithUndefinedOrNullCheck(exec, $value)" if $signature->extendedAttributes->{"ConvertUndefinedOrNullToNullString"}; return "ustringToString($value.toString(exec))"; } if ($type eq "DOMObject") { return "exec->globalData(), $value"; } if ($type eq "NodeFilter") { $implIncludes{"JS$type.h"} = 1; return "to$type(exec->globalData(), $value)"; } if ($type eq "MediaQueryListListener") { $implIncludes{"MediaQueryListListener.h"} = 1; return "MediaQueryListListener::create(ScriptValue(exec->globalData(), " . $value ."))"; } if ($type eq "SerializedScriptValue" or $type eq "any") { $implIncludes{"SerializedScriptValue.h"} = 1; return "SerializedScriptValue::create(exec, $value)"; } if ($type eq "IDBKey") { $implIncludes{"IDBBindingUtilities.h"} = 1; $implIncludes{"IDBKey.h"} = 1; return "createIDBKeyFromValue(exec, $value)"; } $implIncludes{"HTMLOptionElement.h"} = 1 if $type eq "HTMLOptionElement"; $implIncludes{"JSCustomVoidCallback.h"} = 1 if $type eq "VoidCallback"; $implIncludes{"Event.h"} = 1 if $type eq "Event"; # Default, assume autogenerated type conversion routines $implIncludes{"JS$type.h"} = 1; return "to$type($value)";}sub NativeToJSValue{ my $signature = shift; my $inFunctionCall = shift; my $implClassName = shift; my $value = shift; my $thisValue = shift; my $type = $codeGenerator->StripModule($signature->type); return "jsBoolean($value)" if $type eq "boolean"; # Need to check Date type before IsPrimitiveType(). if ($type eq "Date") { return "jsDateOrNull(exec, $value)"; } if ($signature->extendedAttributes->{"Reflect"} and ($type eq "unsigned long" or $type eq "unsigned short")) { $value =~ s/getUnsignedIntegralAttribute/getIntegralAttribute/g; return "jsNumber(std::max(0, " . $value . "))"; } if ($codeGenerator->IsPrimitiveType($type) or $type eq "DOMTimeStamp") { return "jsNumber($value)"; } if ($codeGenerator->IsStringType($type)) { $implIncludes{"KURL.h"} = 1; my $conv = $signature->extendedAttributes->{"ConvertNullStringTo"}; if (defined $conv) { return "jsStringOrNull(exec, $value)" if $conv eq "Null"; return "jsStringOrUndefined(exec, $value)" if $conv eq "Undefined"; return "jsStringOrFalse(exec, $value)" if $conv eq "False"; die "Unknown value for ConvertNullStringTo extended attribute"; } $conv = $signature->extendedAttributes->{"ConvertScriptString"}; return "jsOwnedStringOrNull(exec, $value)" if $conv; $implIncludes{"<runtime/JSString.h>"} = 1; return "jsString(exec, $value)"; } my $globalObject = "$thisValue->globalObject()"; if ($type eq "CSSStyleDeclaration") { $implIncludes{"CSSMutableStyleDeclaration.h"} = 1; } if ($type eq "NodeList") { $implIncludes{"NameNodeList.h"} = 1; } if ($type eq "DOMObject") { if ($implClassName eq "Document") { $implIncludes{"JSCanvasRenderingContext2D.h"} = 1; } else { return "$value.jsValue();"; } } elsif ($type =~ /SVGPathSeg/) { $implIncludes{"JS$type.h"} = 1; $joinedName = $type; $joinedName =~ s/Abs|Rel//; $implIncludes{"$joinedName.h"} = 1; } elsif ($type eq "SerializedScriptValue" or $type eq "any") { $implIncludes{"SerializedScriptValue.h"} = 1; return "$value ? $value->deserialize(exec, castedThis->globalObject()) : jsNull()"; } else { # Default, include header with same name. $implIncludes{"JS$type.h"} = 1; $implIncludes{"$type.h"} = 1 if not $codeGenerator->AvoidInclusionOfType($type); } return $value if $codeGenerator->IsSVGAnimatedType($type); if ($signature->extendedAttributes->{"ReturnsNew"}) { return "toJSNewlyCreated(exec, $globalObject, WTF::getPtr($value))"; } if ($codeGenerator->IsSVGAnimatedType($implClassName)) { # Convert from abstract SVGProperty to real type, so the right toJS() method can be invoked. $value = "static_cast<" . GetNativeType($type) . ">($value)"; } elsif ($codeGenerator->IsSVGTypeNeedingTearOff($type) and not $implClassName =~ /List$/) { my $tearOffType = $codeGenerator->GetSVGTypeNeedingTearOff($type); if ($codeGenerator->IsSVGTypeWithWritablePropertiesNeedingTearOff($type) and $inFunctionCall eq 0 and not defined $signature->extendedAttributes->{"Immutable"}) { my $getter = $value; $getter =~ s/imp\.//; $getter =~ s/imp->//; $getter =~ s/\(\)//; my $updateMethod = "&${implClassName}::update" . $codeGenerator->WK_ucfirst($getter); my $selfIsTearOffType = $codeGenerator->IsSVGTypeNeedingTearOff($implClassName); if ($selfIsTearOffType) { $implIncludes{"SVGStaticPropertyWithParentTearOff.h"} = 1; $tearOffType =~ s/SVGPropertyTearOff</SVGStaticPropertyWithParentTearOff<$implClassName, /; if ($value =~ /matrix/ and $implClassName eq "SVGTransform") { # SVGTransform offers a matrix() method for internal usage that returns an AffineTransform # and a svgMatrix() method returning a SVGMatrix, used for the bindings. $value =~ s/matrix/svgMatrix/; } $value = "${tearOffType}::create(castedThis->impl(), $value, $updateMethod)"; } else { $implIncludes{"SVGStaticPropertyTearOff.h"} = 1; $tearOffType =~ s/SVGPropertyTearOff</SVGStaticPropertyTearOff<$implClassName, /; $value = "${tearOffType}::create(imp, $value, $updateMethod)"; } } elsif ($tearOffType =~ /SVGStaticListPropertyTearOff/) { my $extraImp = "GetOwnerElementForType<$implClassName, IsDerivedFromSVGElement<$implClassName>::value>::ownerElement(imp), "; $value = "${tearOffType}::create($extraImp$value)"; } elsif (not $tearOffType =~ /SVG(Point|PathSeg)List/) { $value = "${tearOffType}::create($value)"; } } return "toJS(exec, $globalObject, WTF::getPtr($value))";}sub ceilingToPowerOf2{ my ($size) = @_; my $powerOf2 = 1; while ($size > $powerOf2) { $powerOf2 <<= 1; } return $powerOf2;}# Internal Helpersub GenerateHashTable{ my $object = shift; my $name = shift; my $size = shift; my $keys = shift; my $specials = shift; my $value1 = shift; my $value2 = shift; my $conditionals = shift; # Generate size data for compact' size hash table my @table = (); my @links = (); my $compactSize = ceilingToPowerOf2($size * 2); my $maxDepth = 0; my $collisions = 0; my $numEntries = $compactSize; my $i = 0; foreach (@{$keys}) { my $depth = 0; my $h = $object->GenerateHashValue($_) % $numEntries; while (defined($table[$h])) { if (defined($links[$h])) { $h = $links[$h]; $depth++; } else { $collisions++; $links[$h] = $compactSize; $h = $compactSize; $compactSize++; } } $table[$h] = $i; $i++; $maxDepth = $depth if ($depth > $maxDepth); } # Start outputing the hashtables my $nameEntries = "${name}Values"; $nameEntries =~ s/:/_/g; if (($name =~ /Prototype/) or ($name =~ /Constructor/)) { my $type = $name; my $implClass; if ($name =~ /Prototype/) { $type =~ s/Prototype.*//; $implClass = $type; $implClass =~ s/Wrapper$//; push(@implContent, "/* Hash table for prototype */\n"); } else { $type =~ s/Constructor.*//; $implClass = $type; $implClass =~ s/Constructor$//; push(@implContent, "/* Hash table for constructor */\n"); } } else { push(@implContent, "/* Hash table */\n"); } # Dump the hash table my $count = scalar @{$keys} + 1; push(@implContent, "#if ENABLE(JIT)\n"); push(@implContent, "#define THUNK_GENERATOR(generator) , generator\n"); push(@implContent, "#else\n"); push(@implContent, "#define THUNK_GENERATOR(generator)\n"); push(@implContent, "#endif\n"); push(@implContent, "\nstatic const HashTableValue $nameEntries\[$count\] =\n\{\n"); $i = 0; foreach my $key (@{$keys}) { my $conditional; my $targetType; if ($conditionals) { $conditional = $conditionals->{$key}; } if ($conditional) { my $conditionalString = GenerateConditionalStringFromAttributeValue($conditional); push(@implContent, "#if ${conditionalString}\n"); } if ("@$specials[$i]" =~ m/Function/) { $targetType = "static_cast<NativeFunction>"; } else { $targetType = "static_cast<PropertySlot::GetValueFunc>"; } push(@implContent, " { \"$key\", @$specials[$i], (intptr_t)" . $targetType . "(@$value1[$i]), (intptr_t)@$value2[$i] THUNK_GENERATOR(0) },\n"); if ($conditional) { push(@implContent, "#endif\n"); } ++$i; } push(@implContent, " { 0, 0, 0, 0 THUNK_GENERATOR(0) }\n"); push(@implContent, "};\n\n"); push(@implContent, "#undef THUNK_GENERATOR\n"); my $compactSizeMask = $numEntries - 1; push(@implContent, "static JSC_CONST_HASHTABLE HashTable $name = { $compactSize, $compactSizeMask, $nameEntries, 0 };\n");}# Internal helpersub GenerateHashValue{ my $object = shift; @chars = split(/ */, $_[0]); # This hash is designed to work on 16-bit chunks at a time. But since the normal case # (above) is to hash UTF-16 characters, we just treat the 8-bit chars as if they # were 16-bit chunks, which should give matching results my $EXP2_32 = 4294967296; my $hash = 0x9e3779b9; my $l = scalar @chars; #I wish this was in Ruby --- Maks my $rem = $l & 1; $l = $l >> 1; my $s = 0; # Main loop for (; $l > 0; $l--) { $hash += ord($chars[$s]); my $tmp = leftShift(ord($chars[$s+1]), 11) ^ $hash; $hash = (leftShift($hash, 16)% $EXP2_32) ^ $tmp; $s += 2; $hash += $hash >> 11; $hash %= $EXP2_32; } # Handle end case if ($rem != 0) { $hash += ord($chars[$s]); $hash ^= (leftShift($hash, 11)% $EXP2_32); $hash += $hash >> 17; } # Force "avalanching" of final 127 bits $hash ^= leftShift($hash, 3); $hash += ($hash >> 5); $hash = ($hash% $EXP2_32); $hash ^= (leftShift($hash, 2)% $EXP2_32); $hash += ($hash >> 15); $hash = $hash% $EXP2_32; $hash ^= (leftShift($hash, 10)% $EXP2_32); # this avoids ever returning a hash code of 0, since that is used to # signal "hash not computed yet", using a value that is likely to be # effectively the same as 0 when the low bits are masked $hash = 0x80000000 if ($hash == 0); return $hash;}# Internal helpersub WriteData{ if (defined($IMPL)) { # Write content to file. print $IMPL @implContentHeader; my @includes = (); foreach my $include (keys %implIncludes) { my $checkType = $include; $checkType =~ s/\.h//; next if $codeGenerator->IsSVGAnimatedType($checkType); $include = "\"$include\"" unless $include =~ /^["<]/; # " push @includes, $include; } foreach my $include (sort @includes) { print $IMPL "#include $include\n"; } print $IMPL @implContent; close($IMPL); undef($IMPL); @implContentHeader = (); @implContent = (); %implIncludes = (); } if (defined($HEADER)) { # Write content to file. print $HEADER @headerContentHeader; my @includes = (); foreach my $include (keys %headerIncludes) { $include = "\"$include\"" unless $include =~ /^["<]/; # " push @includes, $include; } foreach my $include (sort @includes) { print $HEADER "#include $include\n"; } print $HEADER @headerContent; @includes = (); foreach my $include (keys %headerTrailingIncludes) { $include = "\"$include\"" unless $include =~ /^["<]/; # " push @includes, $include; } foreach my $include (sort @includes) { print $HEADER "#include $include\n"; } close($HEADER); undef($HEADER); @headerContentHeader = (); @headerContent = (); %headerIncludes = (); %headerTrailingIncludes = (); } if (defined($DEPS)) { # Write dependency file. print $DEPS @depsContent; close($DEPS); undef($DEPS); @depsContent = (); }}sub GenerateConstructorDeclaration{ my $outputArray = shift; my $className = shift; my $dataNode = shift; my $constructorClassName = "${className}Constructor"; my $canConstruct = $dataNode->extendedAttributes->{"CanBeConstructed"}; my $callWith = $dataNode->extendedAttributes->{"CallWith"}; push(@$outputArray, "class ${constructorClassName} : public DOMConstructorObject {\n"); push(@$outputArray, "public:\n"); push(@$outputArray, " ${constructorClassName}(JSC::ExecState*, JSC::Structure*, JSDOMGlobalObject*);\n\n"); push(@$outputArray, " virtual bool getOwnPropertySlot(JSC::ExecState*, const JSC::Identifier&, JSC::PropertySlot&);\n"); push(@$outputArray, " virtual bool getOwnPropertyDescriptor(JSC::ExecState*, const JSC::Identifier&, JSC::PropertyDescriptor&);\n"); push(@$outputArray, " static const JSC::ClassInfo s_info;\n"); push(@$outputArray, " static JSC::Structure* createStructure(JSC::JSGlobalData& globalData, JSC::JSValue prototype)\n"); push(@$outputArray, " {\n"); push(@$outputArray, " return JSC::Structure::create(globalData, prototype, JSC::TypeInfo(JSC::ObjectType, StructureFlags), AnonymousSlotCount, &s_info);\n"); push(@$outputArray, " }\n"); push(@$outputArray, "protected:\n"); push(@$outputArray, " static const unsigned StructureFlags = JSC::OverridesGetOwnPropertySlot | JSC::ImplementsHasInstance | DOMConstructorObject::StructureFlags;\n"); if ($canConstruct) { push(@$outputArray, " static JSC::EncodedJSValue JSC_HOST_CALL construct${className}(JSC::ExecState*);\n"); push(@$outputArray, " virtual JSC::ConstructType getConstructData(JSC::ConstructData&);\n"); } push(@$outputArray, "};\n\n");}sub GenerateConstructorDefinition{ my $outputArray = shift; my $className = shift; my $protoClassName = shift; my $interfaceName = shift; my $visibleClassName = shift; my $dataNode = shift; my $constructorClassName = "${className}Constructor"; my $canConstruct = $dataNode->extendedAttributes->{"CanBeConstructed"}; my $customConstructFunction = $dataNode->extendedAttributes->{"CustomConstructFunction"}; my $callWith = $dataNode->extendedAttributes->{"CallWith"}; my $numberOfconstructParameters = $dataNode->extendedAttributes->{"ConstructorParameters"}; push(@$outputArray, "const ClassInfo ${constructorClassName}::s_info = { \"${visibleClassName}Constructor\", &DOMConstructorObject::s_info, &${constructorClassName}Table, 0 };\n\n"); push(@$outputArray, "${constructorClassName}::${constructorClassName}(ExecState* exec, Structure* structure, JSDOMGlobalObject* globalObject)\n"); push(@$outputArray, " : DOMConstructorObject(structure, globalObject)\n"); push(@$outputArray, "{\n"); push(@$outputArray, " ASSERT(inherits(&s_info));\n"); if ($interfaceName eq "DOMWindow") { push(@$outputArray, " putDirect(exec->globalData(), exec->propertyNames().prototype, globalObject->prototype(), DontDelete | ReadOnly);\n"); } else { push(@$outputArray, " putDirect(exec->globalData(), exec->propertyNames().prototype, ${protoClassName}::self(exec, globalObject), DontDelete | ReadOnly);\n"); } push(@$outputArray, " putDirect(exec->globalData(), exec->propertyNames().length, jsNumber(${numberOfconstructParameters}), ReadOnly | DontDelete | DontEnum);\n") if $numberOfconstructParameters; push(@$outputArray, "}\n\n"); push(@$outputArray, "bool ${constructorClassName}::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot& slot)\n"); push(@$outputArray, "{\n"); push(@$outputArray, " return getStaticValueSlot<${constructorClassName}, JSDOMWrapper>(exec, &${constructorClassName}Table, this, propertyName, slot);\n"); push(@$outputArray, "}\n\n"); push(@$outputArray, "bool ${constructorClassName}::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)\n"); push(@$outputArray, "{\n"); push(@$outputArray, " return getStaticValueDescriptor<${constructorClassName}, JSDOMWrapper>(exec, &${constructorClassName}Table, this, propertyName, descriptor);\n"); push(@$outputArray, "}\n\n"); if ($canConstruct) { if (!$customConstructFunction) { push(@$outputArray, "EncodedJSValue JSC_HOST_CALL ${constructorClassName}::construct${className}(ExecState* exec)\n"); push(@$outputArray, "{\n"); my $constructorArg = ""; if ($callWith and $callWith eq "ScriptExecutionContext") { $constructorArg = "context"; push(@$outputArray, " ScriptExecutionContext* context = static_cast<${constructorClassName}*>(exec->callee())->scriptExecutionContext();\n"); push(@$outputArray, " if (!context)\n"); push(@$outputArray, " return throwVMError(exec, createReferenceError(exec, \"Reference error\"));\n"); } push(@$outputArray, " return JSValue::encode(asObject(toJS(exec, static_cast<${constructorClassName}*>(exec->callee())->globalObject(), ${interfaceName}::create(${constructorArg}))));\n"); push(@$outputArray, "}\n\n"); } push(@$outputArray, "ConstructType ${constructorClassName}::getConstructData(ConstructData& constructData)\n"); push(@$outputArray, "{\n"); push(@$outputArray, " constructData.native.function = construct${className};\n"); push(@$outputArray, " return ConstructTypeHost;\n"); push(@$outputArray, "}\n\n"); }}1; 0 0
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