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-rw-r--r--JavaScriptCore/API/JSCallbackObjectFunctions.h607
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diff --git a/JavaScriptCore/API/JSCallbackObjectFunctions.h b/JavaScriptCore/API/JSCallbackObjectFunctions.h
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--- a/JavaScriptCore/API/JSCallbackObjectFunctions.h
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-/*
- * Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
- * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "APIShims.h"
-#include "APICast.h"
-#include "Error.h"
-#include "ExceptionHelpers.h"
-#include "JSCallbackFunction.h"
-#include "JSClassRef.h"
-#include "JSFunction.h"
-#include "JSGlobalObject.h"
-#include "JSLock.h"
-#include "JSObjectRef.h"
-#include "JSString.h"
-#include "JSStringRef.h"
-#include "OpaqueJSString.h"
-#include "PropertyNameArray.h"
-#include <wtf/Vector.h>
-
-namespace JSC {
-
-template <class Base>
-inline JSCallbackObject<Base>* JSCallbackObject<Base>::asCallbackObject(JSValue value)
-{
- ASSERT(asObject(value)->inherits(&info));
- return static_cast<JSCallbackObject*>(asObject(value));
-}
-
-template <class Base>
-JSCallbackObject<Base>::JSCallbackObject(ExecState* exec, JSGlobalObject* globalObject, NonNullPassRefPtr<Structure> structure, JSClassRef jsClass, void* data)
- : Base(globalObject, structure)
- , m_callbackObjectData(adoptPtr(new JSCallbackObjectData(data, jsClass)))
-{
- init(exec);
-}
-
-// Global object constructor.
-// FIXME: Move this into a separate JSGlobalCallbackObject class derived from this one.
-template <class Base>
-JSCallbackObject<Base>::JSCallbackObject(JSClassRef jsClass, NonNullPassRefPtr<Structure> structure)
- : Base(structure)
- , m_callbackObjectData(adoptPtr(new JSCallbackObjectData(0, jsClass)))
-{
- ASSERT(Base::isGlobalObject());
- init(static_cast<JSGlobalObject*>(this)->globalExec());
-}
-
-template <class Base>
-void JSCallbackObject<Base>::init(ExecState* exec)
-{
- ASSERT(exec);
-
- Vector<JSObjectInitializeCallback, 16> initRoutines;
- JSClassRef jsClass = classRef();
- do {
- if (JSObjectInitializeCallback initialize = jsClass->initialize)
- initRoutines.append(initialize);
- } while ((jsClass = jsClass->parentClass));
-
- // initialize from base to derived
- for (int i = static_cast<int>(initRoutines.size()) - 1; i >= 0; i--) {
- APICallbackShim callbackShim(exec);
- JSObjectInitializeCallback initialize = initRoutines[i];
- initialize(toRef(exec), toRef(this));
- }
-}
-
-template <class Base>
-JSCallbackObject<Base>::~JSCallbackObject()
-{
- JSObjectRef thisRef = toRef(this);
-
- for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass)
- if (JSObjectFinalizeCallback finalize = jsClass->finalize)
- finalize(thisRef);
-}
-
-template <class Base>
-UString JSCallbackObject<Base>::className() const
-{
- UString thisClassName = classRef()->className();
- if (!thisClassName.isEmpty())
- return thisClassName;
-
- return Base::className();
-}
-
-template <class Base>
-bool JSCallbackObject<Base>::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot& slot)
-{
- JSContextRef ctx = toRef(exec);
- JSObjectRef thisRef = toRef(this);
- RefPtr<OpaqueJSString> propertyNameRef;
-
- for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass) {
- // optional optimization to bypass getProperty in cases when we only need to know if the property exists
- if (JSObjectHasPropertyCallback hasProperty = jsClass->hasProperty) {
- if (!propertyNameRef)
- propertyNameRef = OpaqueJSString::create(propertyName.ustring());
- APICallbackShim callbackShim(exec);
- if (hasProperty(ctx, thisRef, propertyNameRef.get())) {
- slot.setCustom(this, callbackGetter);
- return true;
- }
- } else if (JSObjectGetPropertyCallback getProperty = jsClass->getProperty) {
- if (!propertyNameRef)
- propertyNameRef = OpaqueJSString::create(propertyName.ustring());
- JSValueRef exception = 0;
- JSValueRef value;
- {
- APICallbackShim callbackShim(exec);
- value = getProperty(ctx, thisRef, propertyNameRef.get(), &exception);
- }
- if (exception) {
- throwError(exec, toJS(exec, exception));
- slot.setValue(jsUndefined());
- return true;
- }
- if (value) {
- slot.setValue(toJS(exec, value));
- return true;
- }
- }
-
- if (OpaqueJSClassStaticValuesTable* staticValues = jsClass->staticValues(exec)) {
- if (staticValues->contains(propertyName.impl())) {
- slot.setCustom(this, staticValueGetter);
- return true;
- }
- }
-
- if (OpaqueJSClassStaticFunctionsTable* staticFunctions = jsClass->staticFunctions(exec)) {
- if (staticFunctions->contains(propertyName.impl())) {
- slot.setCustom(this, staticFunctionGetter);
- return true;
- }
- }
- }
-
- return Base::getOwnPropertySlot(exec, propertyName, slot);
-}
-
-template <class Base>
-bool JSCallbackObject<Base>::getOwnPropertySlot(ExecState* exec, unsigned propertyName, PropertySlot& slot)
-{
- return getOwnPropertySlot(exec, Identifier::from(exec, propertyName), slot);
-}
-
-template <class Base>
-bool JSCallbackObject<Base>::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)
-{
- PropertySlot slot;
- if (getOwnPropertySlot(exec, propertyName, slot)) {
- // Ideally we should return an access descriptor, but returning a value descriptor is better than nothing.
- JSValue value = slot.getValue(exec, propertyName);
- if (!exec->hadException())
- descriptor.setValue(value);
- // We don't know whether the property is configurable, but assume it is.
- descriptor.setConfigurable(true);
- // We don't know whether the property is enumerable (we could call getOwnPropertyNames() to find out), but assume it isn't.
- descriptor.setEnumerable(false);
- return true;
- }
-
- return Base::getOwnPropertyDescriptor(exec, propertyName, descriptor);
-}
-
-template <class Base>
-void JSCallbackObject<Base>::put(ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot)
-{
- JSContextRef ctx = toRef(exec);
- JSObjectRef thisRef = toRef(this);
- RefPtr<OpaqueJSString> propertyNameRef;
- JSValueRef valueRef = toRef(exec, value);
-
- for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass) {
- if (JSObjectSetPropertyCallback setProperty = jsClass->setProperty) {
- if (!propertyNameRef)
- propertyNameRef = OpaqueJSString::create(propertyName.ustring());
- JSValueRef exception = 0;
- bool result;
- {
- APICallbackShim callbackShim(exec);
- result = setProperty(ctx, thisRef, propertyNameRef.get(), valueRef, &exception);
- }
- if (exception)
- throwError(exec, toJS(exec, exception));
- if (result || exception)
- return;
- }
-
- if (OpaqueJSClassStaticValuesTable* staticValues = jsClass->staticValues(exec)) {
- if (StaticValueEntry* entry = staticValues->get(propertyName.impl())) {
- if (entry->attributes & kJSPropertyAttributeReadOnly)
- return;
- if (JSObjectSetPropertyCallback setProperty = entry->setProperty) {
- if (!propertyNameRef)
- propertyNameRef = OpaqueJSString::create(propertyName.ustring());
- JSValueRef exception = 0;
- bool result;
- {
- APICallbackShim callbackShim(exec);
- result = setProperty(ctx, thisRef, propertyNameRef.get(), valueRef, &exception);
- }
- if (exception)
- throwError(exec, toJS(exec, exception));
- if (result || exception)
- return;
- } else
- throwError(exec, createReferenceError(exec, "Attempt to set a property that is not settable."));
- }
- }
-
- if (OpaqueJSClassStaticFunctionsTable* staticFunctions = jsClass->staticFunctions(exec)) {
- if (StaticFunctionEntry* entry = staticFunctions->get(propertyName.impl())) {
- if (entry->attributes & kJSPropertyAttributeReadOnly)
- return;
- JSCallbackObject<Base>::putDirect(propertyName, value); // put as override property
- return;
- }
- }
- }
-
- return Base::put(exec, propertyName, value, slot);
-}
-
-template <class Base>
-bool JSCallbackObject<Base>::deleteProperty(ExecState* exec, const Identifier& propertyName)
-{
- JSContextRef ctx = toRef(exec);
- JSObjectRef thisRef = toRef(this);
- RefPtr<OpaqueJSString> propertyNameRef;
-
- for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass) {
- if (JSObjectDeletePropertyCallback deleteProperty = jsClass->deleteProperty) {
- if (!propertyNameRef)
- propertyNameRef = OpaqueJSString::create(propertyName.ustring());
- JSValueRef exception = 0;
- bool result;
- {
- APICallbackShim callbackShim(exec);
- result = deleteProperty(ctx, thisRef, propertyNameRef.get(), &exception);
- }
- if (exception)
- throwError(exec, toJS(exec, exception));
- if (result || exception)
- return true;
- }
-
- if (OpaqueJSClassStaticValuesTable* staticValues = jsClass->staticValues(exec)) {
- if (StaticValueEntry* entry = staticValues->get(propertyName.impl())) {
- if (entry->attributes & kJSPropertyAttributeDontDelete)
- return false;
- return true;
- }
- }
-
- if (OpaqueJSClassStaticFunctionsTable* staticFunctions = jsClass->staticFunctions(exec)) {
- if (StaticFunctionEntry* entry = staticFunctions->get(propertyName.impl())) {
- if (entry->attributes & kJSPropertyAttributeDontDelete)
- return false;
- return true;
- }
- }
- }
-
- return Base::deleteProperty(exec, propertyName);
-}
-
-template <class Base>
-bool JSCallbackObject<Base>::deleteProperty(ExecState* exec, unsigned propertyName)
-{
- return deleteProperty(exec, Identifier::from(exec, propertyName));
-}
-
-template <class Base>
-ConstructType JSCallbackObject<Base>::getConstructData(ConstructData& constructData)
-{
- for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass) {
- if (jsClass->callAsConstructor) {
- constructData.native.function = construct;
- return ConstructTypeHost;
- }
- }
- return ConstructTypeNone;
-}
-
-template <class Base>
-EncodedJSValue JSCallbackObject<Base>::construct(ExecState* exec)
-{
- JSObject* constructor = exec->callee();
- JSContextRef execRef = toRef(exec);
- JSObjectRef constructorRef = toRef(constructor);
-
- for (JSClassRef jsClass = static_cast<JSCallbackObject<Base>*>(constructor)->classRef(); jsClass; jsClass = jsClass->parentClass) {
- if (JSObjectCallAsConstructorCallback callAsConstructor = jsClass->callAsConstructor) {
- int argumentCount = static_cast<int>(exec->argumentCount());
- Vector<JSValueRef, 16> arguments(argumentCount);
- for (int i = 0; i < argumentCount; i++)
- arguments[i] = toRef(exec, exec->argument(i));
- JSValueRef exception = 0;
- JSObject* result;
- {
- APICallbackShim callbackShim(exec);
- result = toJS(callAsConstructor(execRef, constructorRef, argumentCount, arguments.data(), &exception));
- }
- if (exception)
- throwError(exec, toJS(exec, exception));
- return JSValue::encode(result);
- }
- }
-
- ASSERT_NOT_REACHED(); // getConstructData should prevent us from reaching here
- return JSValue::encode(JSValue());
-}
-
-template <class Base>
-bool JSCallbackObject<Base>::hasInstance(ExecState* exec, JSValue value, JSValue)
-{
- JSContextRef execRef = toRef(exec);
- JSObjectRef thisRef = toRef(this);
-
- for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass) {
- if (JSObjectHasInstanceCallback hasInstance = jsClass->hasInstance) {
- JSValueRef valueRef = toRef(exec, value);
- JSValueRef exception = 0;
- bool result;
- {
- APICallbackShim callbackShim(exec);
- result = hasInstance(execRef, thisRef, valueRef, &exception);
- }
- if (exception)
- throwError(exec, toJS(exec, exception));
- return result;
- }
- }
- return false;
-}
-
-template <class Base>
-CallType JSCallbackObject<Base>::getCallData(CallData& callData)
-{
- for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass) {
- if (jsClass->callAsFunction) {
- callData.native.function = call;
- return CallTypeHost;
- }
- }
- return CallTypeNone;
-}
-
-template <class Base>
-EncodedJSValue JSCallbackObject<Base>::call(ExecState* exec)
-{
- JSContextRef execRef = toRef(exec);
- JSObjectRef functionRef = toRef(exec->callee());
- JSObjectRef thisObjRef = toRef(exec->hostThisValue().toThisObject(exec));
-
- for (JSClassRef jsClass = static_cast<JSCallbackObject<Base>*>(toJS(functionRef))->classRef(); jsClass; jsClass = jsClass->parentClass) {
- if (JSObjectCallAsFunctionCallback callAsFunction = jsClass->callAsFunction) {
- int argumentCount = static_cast<int>(exec->argumentCount());
- Vector<JSValueRef, 16> arguments(argumentCount);
- for (int i = 0; i < argumentCount; i++)
- arguments[i] = toRef(exec, exec->argument(i));
- JSValueRef exception = 0;
- JSValue result;
- {
- APICallbackShim callbackShim(exec);
- result = toJS(exec, callAsFunction(execRef, functionRef, thisObjRef, argumentCount, arguments.data(), &exception));
- }
- if (exception)
- throwError(exec, toJS(exec, exception));
- return JSValue::encode(result);
- }
- }
-
- ASSERT_NOT_REACHED(); // getCallData should prevent us from reaching here
- return JSValue::encode(JSValue());
-}
-
-template <class Base>
-void JSCallbackObject<Base>::getOwnPropertyNames(ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
-{
- JSContextRef execRef = toRef(exec);
- JSObjectRef thisRef = toRef(this);
-
- for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass) {
- if (JSObjectGetPropertyNamesCallback getPropertyNames = jsClass->getPropertyNames) {
- APICallbackShim callbackShim(exec);
- getPropertyNames(execRef, thisRef, toRef(&propertyNames));
- }
-
- if (OpaqueJSClassStaticValuesTable* staticValues = jsClass->staticValues(exec)) {
- typedef OpaqueJSClassStaticValuesTable::const_iterator iterator;
- iterator end = staticValues->end();
- for (iterator it = staticValues->begin(); it != end; ++it) {
- StringImpl* name = it->first.get();
- StaticValueEntry* entry = it->second;
- if (entry->getProperty && (!(entry->attributes & kJSPropertyAttributeDontEnum) || (mode == IncludeDontEnumProperties)))
- propertyNames.add(Identifier(exec, name));
- }
- }
-
- if (OpaqueJSClassStaticFunctionsTable* staticFunctions = jsClass->staticFunctions(exec)) {
- typedef OpaqueJSClassStaticFunctionsTable::const_iterator iterator;
- iterator end = staticFunctions->end();
- for (iterator it = staticFunctions->begin(); it != end; ++it) {
- StringImpl* name = it->first.get();
- StaticFunctionEntry* entry = it->second;
- if (!(entry->attributes & kJSPropertyAttributeDontEnum) || (mode == IncludeDontEnumProperties))
- propertyNames.add(Identifier(exec, name));
- }
- }
- }
-
- Base::getOwnPropertyNames(exec, propertyNames, mode);
-}
-
-template <class Base>
-double JSCallbackObject<Base>::toNumber(ExecState* exec) const
-{
- // We need this check to guard against the case where this object is rhs of
- // a binary expression where lhs threw an exception in its conversion to
- // primitive
- if (exec->hadException())
- return NaN;
- JSContextRef ctx = toRef(exec);
- JSObjectRef thisRef = toRef(this);
-
- for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass)
- if (JSObjectConvertToTypeCallback convertToType = jsClass->convertToType) {
- JSValueRef exception = 0;
- JSValueRef value;
- {
- APICallbackShim callbackShim(exec);
- value = convertToType(ctx, thisRef, kJSTypeNumber, &exception);
- }
- if (exception) {
- throwError(exec, toJS(exec, exception));
- return 0;
- }
-
- double dValue;
- if (value)
- return toJS(exec, value).getNumber(dValue) ? dValue : NaN;
- }
-
- return Base::toNumber(exec);
-}
-
-template <class Base>
-UString JSCallbackObject<Base>::toString(ExecState* exec) const
-{
- JSContextRef ctx = toRef(exec);
- JSObjectRef thisRef = toRef(this);
-
- for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass)
- if (JSObjectConvertToTypeCallback convertToType = jsClass->convertToType) {
- JSValueRef exception = 0;
- JSValueRef value;
- {
- APICallbackShim callbackShim(exec);
- value = convertToType(ctx, thisRef, kJSTypeString, &exception);
- }
- if (exception) {
- throwError(exec, toJS(exec, exception));
- return "";
- }
- if (value)
- return toJS(exec, value).getString(exec);
- }
-
- return Base::toString(exec);
-}
-
-template <class Base>
-void JSCallbackObject<Base>::setPrivate(void* data)
-{
- m_callbackObjectData->privateData = data;
-}
-
-template <class Base>
-void* JSCallbackObject<Base>::getPrivate()
-{
- return m_callbackObjectData->privateData;
-}
-
-template <class Base>
-bool JSCallbackObject<Base>::inherits(JSClassRef c) const
-{
- for (JSClassRef jsClass = classRef(); jsClass; jsClass = jsClass->parentClass)
- if (jsClass == c)
- return true;
-
- return false;
-}
-
-template <class Base>
-JSValue JSCallbackObject<Base>::staticValueGetter(ExecState* exec, JSValue slotBase, const Identifier& propertyName)
-{
- JSCallbackObject* thisObj = asCallbackObject(slotBase);
-
- JSObjectRef thisRef = toRef(thisObj);
- RefPtr<OpaqueJSString> propertyNameRef;
-
- for (JSClassRef jsClass = thisObj->classRef(); jsClass; jsClass = jsClass->parentClass)
- if (OpaqueJSClassStaticValuesTable* staticValues = jsClass->staticValues(exec))
- if (StaticValueEntry* entry = staticValues->get(propertyName.impl()))
- if (JSObjectGetPropertyCallback getProperty = entry->getProperty) {
- if (!propertyNameRef)
- propertyNameRef = OpaqueJSString::create(propertyName.ustring());
- JSValueRef exception = 0;
- JSValueRef value;
- {
- APICallbackShim callbackShim(exec);
- value = getProperty(toRef(exec), thisRef, propertyNameRef.get(), &exception);
- }
- if (exception) {
- throwError(exec, toJS(exec, exception));
- return jsUndefined();
- }
- if (value)
- return toJS(exec, value);
- }
-
- return throwError(exec, createReferenceError(exec, "Static value property defined with NULL getProperty callback."));
-}
-
-template <class Base>
-JSValue JSCallbackObject<Base>::staticFunctionGetter(ExecState* exec, JSValue slotBase, const Identifier& propertyName)
-{
- JSCallbackObject* thisObj = asCallbackObject(slotBase);
-
- // Check for cached or override property.
- PropertySlot slot2(thisObj);
- if (thisObj->Base::getOwnPropertySlot(exec, propertyName, slot2))
- return slot2.getValue(exec, propertyName);
-
- for (JSClassRef jsClass = thisObj->classRef(); jsClass; jsClass = jsClass->parentClass) {
- if (OpaqueJSClassStaticFunctionsTable* staticFunctions = jsClass->staticFunctions(exec)) {
- if (StaticFunctionEntry* entry = staticFunctions->get(propertyName.impl())) {
- if (JSObjectCallAsFunctionCallback callAsFunction = entry->callAsFunction) {
-
- JSObject* o = new (exec) JSCallbackFunction(exec, asGlobalObject(thisObj->getAnonymousValue(0)), callAsFunction, propertyName);
- thisObj->putDirect(propertyName, o, entry->attributes);
- return o;
- }
- }
- }
- }
-
- return throwError(exec, createReferenceError(exec, "Static function property defined with NULL callAsFunction callback."));
-}
-
-template <class Base>
-JSValue JSCallbackObject<Base>::callbackGetter(ExecState* exec, JSValue slotBase, const Identifier& propertyName)
-{
- JSCallbackObject* thisObj = asCallbackObject(slotBase);
-
- JSObjectRef thisRef = toRef(thisObj);
- RefPtr<OpaqueJSString> propertyNameRef;
-
- for (JSClassRef jsClass = thisObj->classRef(); jsClass; jsClass = jsClass->parentClass)
- if (JSObjectGetPropertyCallback getProperty = jsClass->getProperty) {
- if (!propertyNameRef)
- propertyNameRef = OpaqueJSString::create(propertyName.ustring());
- JSValueRef exception = 0;
- JSValueRef value;
- {
- APICallbackShim callbackShim(exec);
- value = getProperty(toRef(exec), thisRef, propertyNameRef.get(), &exception);
- }
- if (exception) {
- throwError(exec, toJS(exec, exception));
- return jsUndefined();
- }
- if (value)
- return toJS(exec, value);
- }
-
- return throwError(exec, createReferenceError(exec, "hasProperty callback returned true for a property that doesn't exist."));
-}
-
-} // namespace JSC
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