void Arguments::put(JSCell* cell, ExecState* exec, PropertyName propertyName, JSValue value, PutPropertySlot& slot) { Arguments* thisObject = jsCast<Arguments*>(cell); unsigned i = propertyName.asIndex(); if (thisObject->trySetArgument(exec->vm(), i, value)) return; if (propertyName == exec->propertyNames().length && !thisObject->m_overrodeLength) { thisObject->m_overrodeLength = true; thisObject->putDirect(exec->vm(), propertyName, value, DontEnum); return; } if (propertyName == exec->propertyNames().callee && !thisObject->m_overrodeCallee) { if (!thisObject->m_isStrictMode) { thisObject->m_overrodeCallee = true; thisObject->putDirect(exec->vm(), propertyName, value, DontEnum); return; } thisObject->createStrictModeCalleeIfNecessary(exec); } if (propertyName == exec->propertyNames().caller && thisObject->m_isStrictMode) thisObject->createStrictModeCallerIfNecessary(exec); JSObject::put(thisObject, exec, propertyName, value, slot); }
bool Arguments::deleteProperty(JSCell* cell, ExecState* exec, PropertyName propertyName) { if (exec->vm().isInDefineOwnProperty()) return Base::deleteProperty(cell, exec, propertyName); Arguments* thisObject = jsCast<Arguments*>(cell); unsigned i = propertyName.asIndex(); if (i < thisObject->m_numArguments) { RELEASE_ASSERT(i < PropertyName::NotAnIndex); if (!Base::deleteProperty(cell, exec, propertyName)) return false; if (thisObject->tryDeleteArgument(exec->vm(), i)) return true; } if (propertyName == exec->propertyNames().length && !thisObject->m_overrodeLength) { thisObject->m_overrodeLength = true; return true; } if (propertyName == exec->propertyNames().callee && !thisObject->m_overrodeCallee) { if (!thisObject->m_isStrictMode) { thisObject->m_overrodeCallee = true; return true; } thisObject->createStrictModeCalleeIfNecessary(exec); } if (propertyName == exec->propertyNames().caller && thisObject->m_isStrictMode) thisObject->createStrictModeCallerIfNecessary(exec); return JSObject::deleteProperty(thisObject, exec, propertyName); }
bool Arguments::deleteProperty(JSCell* cell, ExecState* exec, const Identifier& propertyName) { Arguments* thisObject = static_cast<Arguments*>(cell); bool isArrayIndex; unsigned i = propertyName.toArrayIndex(isArrayIndex); if (isArrayIndex && i < thisObject->d->numArguments) { if (!thisObject->d->deletedArguments) { thisObject->d->deletedArguments = adoptArrayPtr(new bool[thisObject->d->numArguments]); memset(thisObject->d->deletedArguments.get(), 0, sizeof(bool) * thisObject->d->numArguments); } if (!thisObject->d->deletedArguments[i]) { thisObject->d->deletedArguments[i] = true; return true; } } if (propertyName == exec->propertyNames().length && !thisObject->d->overrodeLength) { thisObject->d->overrodeLength = true; return true; } if (propertyName == exec->propertyNames().callee && !thisObject->d->overrodeCallee) { if (!thisObject->d->isStrictMode) { thisObject->d->overrodeCallee = true; return true; } thisObject->createStrictModeCalleeIfNecessary(exec); } if (propertyName == exec->propertyNames().caller && !thisObject->d->isStrictMode) thisObject->createStrictModeCallerIfNecessary(exec); return JSObject::deleteProperty(thisObject, exec, propertyName); }
bool Arguments::getOwnPropertySlot(JSCell* cell, ExecState* exec, const Identifier& propertyName, PropertySlot& slot) { Arguments* thisObject = static_cast<Arguments*>(cell); bool isArrayIndex; unsigned i = propertyName.toArrayIndex(isArrayIndex); if (isArrayIndex && i < thisObject->d->numArguments && (!thisObject->d->deletedArguments || !thisObject->d->deletedArguments[i])) { if (i < thisObject->d->numParameters) { slot.setValue(thisObject->d->registers[thisObject->d->firstParameterIndex + i].get()); } else slot.setValue(thisObject->d->extraArguments[i - thisObject->d->numParameters].get()); return true; } if (propertyName == exec->propertyNames().length && LIKELY(!thisObject->d->overrodeLength)) { slot.setValue(jsNumber(thisObject->d->numArguments)); return true; } if (propertyName == exec->propertyNames().callee && LIKELY(!thisObject->d->overrodeCallee)) { if (!thisObject->d->isStrictMode) { slot.setValue(thisObject->d->callee.get()); return true; } thisObject->createStrictModeCalleeIfNecessary(exec); } if (propertyName == exec->propertyNames().caller && thisObject->d->isStrictMode) thisObject->createStrictModeCallerIfNecessary(exec); return JSObject::getOwnPropertySlot(thisObject, exec, propertyName, slot); }
void Arguments::put(JSCell* cell, ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot) { Arguments* thisObject = static_cast<Arguments*>(cell); bool isArrayIndex; unsigned i = propertyName.toArrayIndex(isArrayIndex); if (isArrayIndex && i < thisObject->d->numArguments && (!thisObject->d->deletedArguments || !thisObject->d->deletedArguments[i])) { if (i < thisObject->d->numParameters) thisObject->d->registers[thisObject->d->firstParameterIndex + i].set(exec->globalData(), thisObject->d->activation ? static_cast<JSCell*>(thisObject->d->activation.get()) : static_cast<JSCell*>(thisObject), value); else thisObject->d->extraArguments[i - thisObject->d->numParameters].set(exec->globalData(), thisObject, value); return; } if (propertyName == exec->propertyNames().length && !thisObject->d->overrodeLength) { thisObject->d->overrodeLength = true; thisObject->putDirect(exec->globalData(), propertyName, value, DontEnum); return; } if (propertyName == exec->propertyNames().callee && !thisObject->d->overrodeCallee) { if (!thisObject->d->isStrictMode) { thisObject->d->overrodeCallee = true; thisObject->putDirect(exec->globalData(), propertyName, value, DontEnum); return; } thisObject->createStrictModeCalleeIfNecessary(exec); } if (propertyName == exec->propertyNames().caller && thisObject->d->isStrictMode) thisObject->createStrictModeCallerIfNecessary(exec); JSObject::put(thisObject, exec, propertyName, value, slot); }
void Arguments::put(JSCell* cell, ExecState* exec, PropertyName propertyName, JSValue value, PutPropertySlot& slot) { Arguments* thisObject = jsCast<Arguments*>(cell); unsigned i = propertyName.asIndex(); if (i < thisObject->d->numArguments && (!thisObject->d->deletedArguments || !thisObject->d->deletedArguments[i])) { ASSERT(i < PropertyName::NotAnIndex); thisObject->argument(i).set(exec->globalData(), thisObject, value); return; } if (propertyName == exec->propertyNames().length && !thisObject->d->overrodeLength) { thisObject->d->overrodeLength = true; thisObject->putDirect(exec->globalData(), propertyName, value, DontEnum); return; } if (propertyName == exec->propertyNames().callee && !thisObject->d->overrodeCallee) { if (!thisObject->d->isStrictMode) { thisObject->d->overrodeCallee = true; thisObject->putDirect(exec->globalData(), propertyName, value, DontEnum); return; } thisObject->createStrictModeCalleeIfNecessary(exec); } if (propertyName == exec->propertyNames().caller && thisObject->d->isStrictMode) thisObject->createStrictModeCallerIfNecessary(exec); JSObject::put(thisObject, exec, propertyName, value, slot); }
bool Arguments::getOwnPropertyDescriptor(JSObject* object, ExecState* exec, PropertyName propertyName, PropertyDescriptor& descriptor) { Arguments* thisObject = jsCast<Arguments*>(object); unsigned i = propertyName.asIndex(); if (i < thisObject->d->numArguments && (!thisObject->d->deletedArguments || !thisObject->d->deletedArguments[i])) { ASSERT(i < PropertyName::NotAnIndex); descriptor.setDescriptor(thisObject->argument(i).get(), None); return true; } if (propertyName == exec->propertyNames().length && LIKELY(!thisObject->d->overrodeLength)) { descriptor.setDescriptor(jsNumber(thisObject->d->numArguments), DontEnum); return true; } if (propertyName == exec->propertyNames().callee && LIKELY(!thisObject->d->overrodeCallee)) { if (!thisObject->d->isStrictMode) { descriptor.setDescriptor(thisObject->d->callee.get(), DontEnum); return true; } thisObject->createStrictModeCalleeIfNecessary(exec); } if (propertyName == exec->propertyNames().caller && thisObject->d->isStrictMode) thisObject->createStrictModeCallerIfNecessary(exec); return JSObject::getOwnPropertyDescriptor(thisObject, exec, propertyName, descriptor); }
bool Arguments::getOwnPropertySlot(JSCell* cell, ExecState* exec, PropertyName propertyName, PropertySlot& slot) { Arguments* thisObject = jsCast<Arguments*>(cell); unsigned i = propertyName.asIndex(); if (i < thisObject->d->numArguments && (!thisObject->d->deletedArguments || !thisObject->d->deletedArguments[i])) { ASSERT(i < PropertyName::NotAnIndex); slot.setValue(thisObject->argument(i).get()); return true; } if (propertyName == exec->propertyNames().length && LIKELY(!thisObject->d->overrodeLength)) { slot.setValue(jsNumber(thisObject->d->numArguments)); return true; } if (propertyName == exec->propertyNames().callee && LIKELY(!thisObject->d->overrodeCallee)) { if (!thisObject->d->isStrictMode) { slot.setValue(thisObject->d->callee.get()); return true; } thisObject->createStrictModeCalleeIfNecessary(exec); } if (propertyName == exec->propertyNames().caller && thisObject->d->isStrictMode) thisObject->createStrictModeCallerIfNecessary(exec); return JSObject::getOwnPropertySlot(thisObject, exec, propertyName, slot); }
bool Arguments::defineOwnProperty(JSObject* object, ExecState* exec, PropertyName propertyName, PropertyDescriptor& descriptor, bool shouldThrow) { Arguments* thisObject = jsCast<Arguments*>(object); unsigned i = propertyName.asIndex(); if (i < thisObject->d->numArguments) { ASSERT(i < PropertyName::NotAnIndex); // If the property is not yet present on the object, and is not yet marked as deleted, then add it now. PropertySlot slot; if ((!thisObject->d->deletedArguments || !thisObject->d->deletedArguments[i]) && !JSObject::getOwnPropertySlot(thisObject, exec, propertyName, slot)) object->putDirect(exec->globalData(), propertyName, thisObject->argument(i).get(), 0); if (!Base::defineOwnProperty(object, exec, propertyName, descriptor, shouldThrow)) return false; if (!thisObject->d->deletedArguments) { thisObject->d->deletedArguments = adoptArrayPtr(new bool[thisObject->d->numArguments]); memset(thisObject->d->deletedArguments.get(), 0, sizeof(bool) * thisObject->d->numArguments); } // From ES 5.1, 10.6 Arguments Object // 5. If the value of isMapped is not undefined, then if (!thisObject->d->deletedArguments[i]) { // a. If IsAccessorDescriptor(Desc) is true, then if (descriptor.isAccessorDescriptor()) { // i. Call the [[Delete]] internal method of map passing P, and false as the arguments. thisObject->d->deletedArguments[i] = true; } else { // b. Else // i. If Desc.[[Value]] is present, then // 1. Call the [[Put]] internal method of map passing P, Desc.[[Value]], and Throw as the arguments. if (descriptor.value()) thisObject->argument(i).set(exec->globalData(), thisObject, descriptor.value()); // ii. If Desc.[[Writable]] is present and its value is false, then // 1. Call the [[Delete]] internal method of map passing P and false as arguments. if (descriptor.writablePresent() && !descriptor.writable()) thisObject->d->deletedArguments[i] = true; } } return true; } if (propertyName == exec->propertyNames().length && !thisObject->d->overrodeLength) { thisObject->putDirect(exec->globalData(), propertyName, jsNumber(thisObject->d->numArguments), DontEnum); thisObject->d->overrodeLength = true; } else if (propertyName == exec->propertyNames().callee && !thisObject->d->overrodeCallee) { thisObject->putDirect(exec->globalData(), propertyName, thisObject->d->callee.get(), DontEnum); thisObject->d->overrodeCallee = true; } else if (propertyName == exec->propertyNames().caller && thisObject->d->isStrictMode) thisObject->createStrictModeCallerIfNecessary(exec); return Base::defineOwnProperty(object, exec, propertyName, descriptor, shouldThrow); }
bool Arguments::defineOwnProperty(JSObject* object, ExecState* exec, PropertyName propertyName, const PropertyDescriptor& descriptor, bool shouldThrow) { Arguments* thisObject = jsCast<Arguments*>(object); unsigned i = propertyName.asIndex(); if (i < thisObject->m_numArguments) { RELEASE_ASSERT(i < PropertyName::NotAnIndex); // If the property is not yet present on the object, and is not yet marked as deleted, then add it now. PropertySlot slot(thisObject); if (!thisObject->isDeletedArgument(i) && !JSObject::getOwnPropertySlot(thisObject, exec, propertyName, slot)) { JSValue value = thisObject->tryGetArgument(i); ASSERT(value); object->putDirectMayBeIndex(exec, propertyName, value); } if (!Base::defineOwnProperty(object, exec, propertyName, descriptor, shouldThrow)) return false; // From ES 5.1, 10.6 Arguments Object // 5. If the value of isMapped is not undefined, then if (thisObject->isArgument(i)) { // a. If IsAccessorDescriptor(Desc) is true, then if (descriptor.isAccessorDescriptor()) { // i. Call the [[Delete]] internal method of map passing P, and false as the arguments. thisObject->tryDeleteArgument(exec->vm(), i); } else { // b. Else // i. If Desc.[[Value]] is present, then // 1. Call the [[Put]] internal method of map passing P, Desc.[[Value]], and Throw as the arguments. if (descriptor.value()) thisObject->trySetArgument(exec->vm(), i, descriptor.value()); // ii. If Desc.[[Writable]] is present and its value is false, then // 1. Call the [[Delete]] internal method of map passing P and false as arguments. if (descriptor.writablePresent() && !descriptor.writable()) thisObject->tryDeleteArgument(exec->vm(), i); } } return true; } if (propertyName == exec->propertyNames().length && !thisObject->m_overrodeLength) { thisObject->putDirect(exec->vm(), propertyName, jsNumber(thisObject->m_numArguments), DontEnum); thisObject->m_overrodeLength = true; } else if (propertyName == exec->propertyNames().callee && !thisObject->m_overrodeCallee) { thisObject->putDirect(exec->vm(), propertyName, thisObject->m_callee.get(), DontEnum); thisObject->m_overrodeCallee = true; } else if (propertyName == exec->propertyNames().caller && thisObject->m_isStrictMode) thisObject->createStrictModeCallerIfNecessary(exec); return Base::defineOwnProperty(object, exec, propertyName, descriptor, shouldThrow); }
bool Arguments::deleteProperty(JSCell* cell, ExecState* exec, PropertyName propertyName) { if (exec->globalData().isInDefineOwnProperty()) return Base::deleteProperty(cell, exec, propertyName); Arguments* thisObject = jsCast<Arguments*>(cell); unsigned i = propertyName.asIndex(); if (i < thisObject->d->numArguments) { ASSERT(i < PropertyName::NotAnIndex); if (!Base::deleteProperty(cell, exec, propertyName)) return false; if (!thisObject->d->deletedArguments) { thisObject->d->deletedArguments = adoptArrayPtr(new bool[thisObject->d->numArguments]); memset(thisObject->d->deletedArguments.get(), 0, sizeof(bool) * thisObject->d->numArguments); } if (!thisObject->d->deletedArguments[i]) { thisObject->d->deletedArguments[i] = true; return true; } } if (propertyName == exec->propertyNames().length && !thisObject->d->overrodeLength) { thisObject->d->overrodeLength = true; return true; } if (propertyName == exec->propertyNames().callee && !thisObject->d->overrodeCallee) { if (!thisObject->d->isStrictMode) { thisObject->d->overrodeCallee = true; return true; } thisObject->createStrictModeCalleeIfNecessary(exec); } if (propertyName == exec->propertyNames().caller && thisObject->d->isStrictMode) thisObject->createStrictModeCallerIfNecessary(exec); return JSObject::deleteProperty(thisObject, exec, propertyName); }
bool Arguments::getOwnPropertySlot(JSObject* object, ExecState* exec, PropertyName propertyName, PropertySlot& slot) { Arguments* thisObject = jsCast<Arguments*>(object); unsigned i = propertyName.asIndex(); if (JSValue value = thisObject->tryGetArgument(i)) { RELEASE_ASSERT(i < PropertyName::NotAnIndex); slot.setValue(thisObject, None, value); return true; } if (propertyName == exec->propertyNames().length && LIKELY(!thisObject->m_overrodeLength)) { slot.setValue(thisObject, DontEnum, jsNumber(thisObject->m_numArguments)); return true; } if (propertyName == exec->propertyNames().callee && LIKELY(!thisObject->m_overrodeCallee)) { if (!thisObject->m_isStrictMode) { slot.setValue(thisObject, DontEnum, thisObject->m_callee.get()); return true; } thisObject->createStrictModeCalleeIfNecessary(exec); } if (propertyName == exec->propertyNames().caller && thisObject->m_isStrictMode) thisObject->createStrictModeCallerIfNecessary(exec); if (JSObject::getOwnPropertySlot(thisObject, exec, propertyName, slot)) return true; if (propertyName == exec->propertyNames().iteratorPrivateName) { VM& vm = exec->vm(); JSGlobalObject* globalObject = exec->lexicalGlobalObject(); thisObject->JSC_NATIVE_FUNCTION(exec->propertyNames().iteratorPrivateName, argumentsFuncIterator, DontEnum, 0); if (JSObject::getOwnPropertySlot(thisObject, exec, propertyName, slot)) return true; } return false; }