JSValue JSInspectorFrontendHost::showContextMenu(ExecState* execState, const ArgList& args)
{
    if (args.size() < 2)
        return jsUndefined();

    Event* event = toEvent(args.at(0));

    JSArray* array = asArray(args.at(1));
    Vector<ContextMenuItem*> items;

    for (size_t i = 0; i < array->length(); ++i) {
        JSObject* item = asObject(array->getIndex(i));
        JSValue label = item->get(execState, Identifier(execState, "label"));
        JSValue id = item->get(execState, Identifier(execState, "id"));
        if (label.isUndefined() || id.isUndefined())
            items.append(new ContextMenuItem(SeparatorType, ContextMenuItemTagNoAction, String()));
        else {
            ContextMenuAction typedId = static_cast<ContextMenuAction>(ContextMenuItemBaseCustomTag + id.toInt32(execState));
            items.append(new ContextMenuItem(ActionType, typedId, label.toString(execState)));
        }
    }

    impl()->showContextMenu(event, items);
    return jsUndefined();
}
static void populateContextMenuItems(ExecState* exec, JSArray* array, ContextMenu& menu)
{
    for (size_t i = 0; i < array->length(); ++i) {
        JSObject* item = asObject(array->getIndex(exec, i));
        JSValue label = item->get(exec, Identifier::fromString(exec, "label"));
        JSValue type = item->get(exec, Identifier::fromString(exec, "type"));
        JSValue id = item->get(exec, Identifier::fromString(exec, "id"));
        JSValue enabled = item->get(exec, Identifier::fromString(exec, "enabled"));
        JSValue checked = item->get(exec, Identifier::fromString(exec, "checked"));
        JSValue subItems = item->get(exec, Identifier::fromString(exec, "subItems"));
        if (!type.isString())
            continue;

        String typeString = type.toWTFString(exec);
        if (typeString == "separator") {
            ContextMenuItem item(SeparatorType, ContextMenuItemTagNoAction, String());
            menu.appendItem(item);
        } else if (typeString == "subMenu" && subItems.inherits(JSArray::info())) {
            ContextMenu subMenu;
            JSArray* subItemsArray = asArray(subItems);
            populateContextMenuItems(exec, subItemsArray, subMenu);
            ContextMenuItem item(SubmenuType, ContextMenuItemTagNoAction, label.toWTFString(exec), &subMenu);
            menu.appendItem(item);
        } else {
            ContextMenuAction typedId = static_cast<ContextMenuAction>(ContextMenuItemBaseCustomTag + id.toInt32(exec));
            ContextMenuItem menuItem((typeString == "checkbox" ? CheckableActionType : ActionType), typedId, label.toWTFString(exec));
            if (!enabled.isUndefined())
                menuItem.setEnabled(enabled.toBoolean(exec));
            if (!checked.isUndefined())
                menuItem.setChecked(checked.toBoolean(exec));
            menu.appendItem(menuItem);
        }
    }
}
Beispiel #3
0
// ECMA-262 5.1, 15.11.4.4
EncodedJSValue JSC_HOST_CALL errorProtoFuncToString(ExecState* exec)
{
    VM& vm = exec->vm();
    auto scope = DECLARE_THROW_SCOPE(vm);

    // 1. Let O be the this value.
    JSValue thisValue = exec->thisValue();

    // 2. If Type(O) is not Object, throw a TypeError exception.
    if (!thisValue.isObject())
        return throwVMTypeError(exec, scope);
    JSObject* thisObj = asObject(thisValue);

    // Guard against recursion!
    StringRecursionChecker checker(exec, thisObj);
    ASSERT(!scope.exception() || checker.earlyReturnValue());
    if (JSValue earlyReturnValue = checker.earlyReturnValue())
        return JSValue::encode(earlyReturnValue);

    // 3. Let name be the result of calling the [[Get]] internal method of O with argument "name".
    JSValue name = thisObj->get(exec, exec->propertyNames().name);
    RETURN_IF_EXCEPTION(scope, encodedJSValue());

    // 4. If name is undefined, then let name be "Error"; else let name be ToString(name).
    String nameString;
    if (name.isUndefined())
        nameString = ASCIILiteral("Error");
    else {
        nameString = name.toWTFString(exec);
        RETURN_IF_EXCEPTION(scope, encodedJSValue());
    }

    // 5. Let msg be the result of calling the [[Get]] internal method of O with argument "message".
    JSValue message = thisObj->get(exec, exec->propertyNames().message);
    RETURN_IF_EXCEPTION(scope, encodedJSValue());

    // (sic)
    // 6. If msg is undefined, then let msg be the empty String; else let msg be ToString(msg).
    // 7. If msg is undefined, then let msg be the empty String; else let msg be ToString(msg).
    String messageString;
    if (message.isUndefined())
        messageString = String();
    else {
        messageString = message.toWTFString(exec);
        RETURN_IF_EXCEPTION(scope, encodedJSValue());
    }

    // 8. If name is the empty String, return msg.
    if (!nameString.length())
        return JSValue::encode(message.isString() ? message : jsString(exec, messageString));

    // 9. If msg is the empty String, return name.
    if (!messageString.length())
        return JSValue::encode(name.isString() ? name : jsString(exec, nameString));

    // 10. Return the result of concatenating name, ":", a single space character, and msg.
    scope.release();
    return JSValue::encode(jsMakeNontrivialString(exec, nameString, ": ", messageString));
}
template<> DictionaryImplName convertDictionary<DictionaryImplName>(ExecState& state, JSValue value)
{
    VM& vm = state.vm();
    auto throwScope = DECLARE_THROW_SCOPE(vm);
    bool isNullOrUndefined = value.isUndefinedOrNull();
    auto* object = isNullOrUndefined ? nullptr : value.getObject();
    if (UNLIKELY(!isNullOrUndefined && !object)) {
        throwTypeError(&state, throwScope);
        return { };
    }
    DictionaryImplName result;
    JSValue boolMemberValue;
    if (isNullOrUndefined)
        boolMemberValue = jsUndefined();
    else {
        boolMemberValue = object->get(&state, Identifier::fromString(&state, "boolMember"));
        RETURN_IF_EXCEPTION(throwScope, { });
    }
    if (!boolMemberValue.isUndefined()) {
        result.boolMember = convert<IDLBoolean>(state, boolMemberValue);
        RETURN_IF_EXCEPTION(throwScope, { });
    }
    JSValue callbackMemberValue;
    if (isNullOrUndefined)
        callbackMemberValue = jsUndefined();
    else {
        callbackMemberValue = object->get(&state, Identifier::fromString(&state, "callbackMember"));
        RETURN_IF_EXCEPTION(throwScope, { });
    }
    if (!callbackMemberValue.isUndefined()) {
        result.callbackMember = convert<IDLCallbackFunction<JSVoidCallback>>(state, callbackMemberValue, *jsCast<JSDOMGlobalObject*>(state.lexicalGlobalObject()));
        RETURN_IF_EXCEPTION(throwScope, { });
    }
    JSValue enumMemberValue;
    if (isNullOrUndefined)
        enumMemberValue = jsUndefined();
    else {
        enumMemberValue = object->get(&state, Identifier::fromString(&state, "enumMember"));
        RETURN_IF_EXCEPTION(throwScope, { });
    }
    if (!enumMemberValue.isUndefined()) {
        result.enumMember = convert<IDLEnumeration<TestStandaloneDictionary::EnumInStandaloneDictionaryFile>>(state, enumMemberValue);
        RETURN_IF_EXCEPTION(throwScope, { });
    }
    JSValue stringMemberValue;
    if (isNullOrUndefined)
        stringMemberValue = jsUndefined();
    else {
        stringMemberValue = object->get(&state, Identifier::fromString(&state, "stringMember"));
        RETURN_IF_EXCEPTION(throwScope, { });
    }
    if (!stringMemberValue.isUndefined()) {
        result.stringMember = convert<IDLDOMString>(state, stringMemberValue);
        RETURN_IF_EXCEPTION(throwScope, { });
    }
    return result;
}
Beispiel #5
0
JSValue RegExpConstructor::getBackref(ExecState* exec, unsigned i)
{
    JSArray* array = m_cachedResult.lastResult(exec, this);

    if (i < array->length()) {
        JSValue result = JSValue(array).get(exec, i);
        ASSERT(result.isString() || result.isUndefined());
        if (!result.isUndefined())
            return result;
    }
    return jsEmptyString(exec);
}
Beispiel #6
0
JSValue RegExpConstructor::getLastParen(ExecState* exec)
{
    JSArray* array = m_cachedResult.lastResult(exec, this);
    unsigned length = array->length();
    if (length > 1) {
        JSValue result = JSValue(array).get(exec, length - 1);
        ASSERT(result.isString() || result.isUndefined());
        if (!result.isUndefined())
            return result;
    }
    return jsEmptyString(exec);
}
static int compareByStringForQSort(const void *a, const void *b)
{
    ExecState *exec = execForCompareByStringForQSort;
    JSValue *va = *(JSValue **)a;
    JSValue *vb = *(JSValue **)b;
    if (va->isUndefined()) {
        return vb->isUndefined() ? 0 : 1;
    }
    if (vb->isUndefined()) {
        return -1;
    }
    return compare(va->toString(exec), vb->toString(exec));
}
Beispiel #8
0
JSObject* constructRegExp(ExecState* exec, JSGlobalObject* globalObject, const ArgList& args,  JSObject* callee, JSValue newTarget)
{
    VM& vm = exec->vm();
    auto scope = DECLARE_THROW_SCOPE(vm);
    JSValue patternArg = args.at(0);
    JSValue flagsArg = args.at(1);

    bool isPatternRegExp = patternArg.inherits(vm, RegExpObject::info());
    bool constructAsRegexp = isRegExp(vm, exec, patternArg);
    RETURN_IF_EXCEPTION(scope, nullptr);

    if (newTarget.isUndefined() && constructAsRegexp && flagsArg.isUndefined()) {
        JSValue constructor = patternArg.get(exec, vm.propertyNames->constructor);
        RETURN_IF_EXCEPTION(scope, nullptr);
        if (callee == constructor) {
            // We know that patternArg is a object otherwise constructAsRegexp would be false.
            return patternArg.getObject();
        }
    }

    if (isPatternRegExp) {
        RegExp* regExp = jsCast<RegExpObject*>(patternArg)->regExp();
        Structure* structure = getRegExpStructure(exec, globalObject, newTarget);
        RETURN_IF_EXCEPTION(scope, nullptr);

        if (!flagsArg.isUndefined()) {
            RegExpFlags flags = toFlags(exec, flagsArg);
            ASSERT(!!scope.exception() == (flags == InvalidFlags));
            if (flags == InvalidFlags)
                return nullptr;
            regExp = RegExp::create(vm, regExp->pattern(), flags);
        }

        return RegExpObject::create(vm, structure, regExp);
    }

    if (constructAsRegexp) {
        JSValue pattern = patternArg.get(exec, vm.propertyNames->source);
        RETURN_IF_EXCEPTION(scope, nullptr);
        if (flagsArg.isUndefined()) {
            flagsArg = patternArg.get(exec, vm.propertyNames->flags);
            RETURN_IF_EXCEPTION(scope, nullptr);
        }
        patternArg = pattern;
    }

    scope.release();
    return regExpCreate(exec, globalObject, newTarget, patternArg, flagsArg);
}
static EncodedJSValue JSC_HOST_CALL callSymbol(ExecState* exec)
{
    JSValue description = exec->argument(0);
    if (description.isUndefined())
        return JSValue::encode(Symbol::create(exec->vm()));
    return JSValue::encode(Symbol::create(exec, description.toString(exec)));
}
static EncodedJSValue JSC_HOST_CALL IntlDateTimeFormatFuncFormatDateTime(ExecState* state)
{
    // 12.3.4 DateTime Format Functions (ECMA-402 2.0)
    // 1. Let dtf be the this value.
    // 2. Assert: Type(dtf) is Object and dtf has an [[initializedDateTimeFormat]] internal slot whose value is true.
    IntlDateTimeFormat* format = jsCast<IntlDateTimeFormat*>(state->thisValue());

    JSValue date = state->argument(0);
    double value;

    // 3. If date is not provided or is undefined, then
    if (date.isUndefined()) {
        // a. Let x be %Date_now%().
        value = JSValue::decode(dateNow(state)).toNumber(state);
    } else {
        // 4. Else
        // a. Let x be ToNumber(date).
        value = date.toNumber(state);
        // b. ReturnIfAbrupt(x).
        if (state->hadException())
            return JSValue::encode(jsUndefined());
    }

    // 5. Return FormatDateTime(dtf, x).
    return JSValue::encode(format->format(*state, value));
}
Beispiel #11
0
static inline double normalizeHighWaterMark(ExecState& exec, JSObject& strategy)
{
    JSValue jsHighWaterMark = getPropertyFromObject(exec, strategy, "highWaterMark");

    if (exec.hadException())
        return 0;

    if (jsHighWaterMark.isUndefined())
        return 1;

    double highWaterMark = jsHighWaterMark.toNumber(&exec);

    if (exec.hadException())
        return 0;

    if (std::isnan(highWaterMark)) {
        throwVMError(&exec, createTypeError(&exec, ASCIILiteral("Value is NaN")));
        return 0;
    }
    if (highWaterMark < 0) {
        throwVMError(&exec, createRangeError(&exec, ASCIILiteral("Not a positive value")));
        return 0;
    }
    return highWaterMark;
}
Beispiel #12
0
RuntimeType TypeSet::getRuntimeTypeForValue(JSValue v)
{
    RuntimeType ret;
    if (v.isFunction())
        ret = TypeFunction;
    else if (v.isUndefined())
        ret = TypeUndefined;
    else if (v.isNull())
        ret = TypeNull;
    else if (v.isBoolean())
        ret = TypeBoolean;
    else if (v.isMachineInt())
        ret = TypeMachineInt;
    else if (v.isNumber())
        ret = TypeNumber;
    else if (v.isString())
        ret = TypeString;
    else if (v.isPrimitive())
        ret = TypePrimitive;
    else if (v.isObject())
        ret = TypeObject;
    else
        CRASH();

    return ret;
}
Beispiel #13
0
bool _NPN_HasMethod(NPP, NPObject* o, NPIdentifier methodName)
{
    if (o->_class == NPScriptObjectClass) {
        JavaScriptObject* obj = reinterpret_cast<JavaScriptObject*>(o); 

        PrivateIdentifier* i = static_cast<PrivateIdentifier*>(methodName);
        if (!i->isString)
            return false;

        RootObject* rootObject = obj->rootObject;
        if (!rootObject || !rootObject->isValid())
            return false;

        ExecState* exec = rootObject->globalObject()->globalExec();
        JSLock lock(false);
        JSValue* func = obj->imp->get(exec, identifierFromNPIdentifier(i->value.string));
        exec->clearException();
        return !func->isUndefined();
    }
    
    if (o->_class->hasMethod)
        return o->_class->hasMethod(o, methodName);
    
    return false;
}
bool injectIDBKeyIntoScriptValue(JSC::ExecState& exec, const IDBKeyData& keyData, JSC::JSValue value, const IDBKeyPath& keyPath)
{
    LOG(IndexedDB, "injectIDBKeyIntoScriptValue");

    ASSERT(keyPath.type() == IndexedDB::KeyPathType::String);

    Vector<String> keyPathElements;
    IDBKeyPathParseError error;
    IDBParseKeyPath(keyPath.string(), keyPathElements, error);
    ASSERT(error == IDBKeyPathParseError::None);

    if (keyPathElements.isEmpty())
        return false;

    JSValue parent = ensureNthValueOnKeyPath(&exec, value, keyPathElements, keyPathElements.size() - 1);
    if (parent.isUndefined())
        return false;

    auto key = keyData.maybeCreateIDBKey();
    if (!key)
        return false;

    if (!set(&exec, parent, keyPathElements.last(), idbKeyToJSValue(&exec, exec.lexicalGlobalObject(), key.get())))
        return false;

    return true;
}
Beispiel #15
0
bool _NPN_HasMethod(NPP, NPObject* o, NPIdentifier methodName)
{
    if (o->_class == NPScriptObjectClass) {
        JavaScriptObject* obj = (JavaScriptObject*)o; 
        if (!_isSafeScript(obj))
            return false;

        PrivateIdentifier* i = (PrivateIdentifier*)methodName;
        if (!i->isString)
            return false;

        RootObject* rootObject = obj->rootObject;
        if (!rootObject || !rootObject->isValid())
            return false;

        ExecState* exec = rootObject->interpreter()->globalExec();
        JSLock lock;
        JSValue* func = obj->imp->get(exec, identifierFromNPIdentifier(i->value.string));
        return !func->isUndefined();
    }
    
    if (o->_class->hasMethod)
        return o->_class->hasMethod(o, methodName);
    
    return false;
}
Beispiel #16
0
EncodedJSValue JSC_HOST_CALL objectProtoFuncToString(ExecState* exec)
{
    VM& vm = exec->vm();
    JSValue thisValue = exec->thisValue().toThis(exec, StrictMode);
    if (thisValue.isUndefinedOrNull())
        return JSValue::encode(thisValue.isUndefined() ? vm.smallStrings.undefinedObjectString() : vm.smallStrings.nullObjectString());
    JSObject* thisObject = thisValue.toObject(exec);

    JSValue stringTag = thisObject->get(exec, exec->propertyNames().toStringTagSymbol);
    if (stringTag.isString()) {
        JSRopeString::RopeBuilder<RecordOverflow> ropeBuilder(vm);
        ropeBuilder.append(vm.smallStrings.objectStringStart());
        ropeBuilder.append(jsCast<JSString*>(stringTag));
        ropeBuilder.append(vm.smallStrings.singleCharacterString(']'));
        if(ropeBuilder.hasOverflowed())
            return JSValue::encode(throwOutOfMemoryError(exec));

        return JSValue::encode(ropeBuilder.release());
    }

    JSString* result = thisObject->structure(vm)->objectToStringValue();
    if (!result) {
        RefPtr<StringImpl> newString = WTF::tryMakeString("[object ", thisObject->methodTable(exec->vm())->className(thisObject), "]");
        if (!newString)
            return JSValue::encode(throwOutOfMemoryError(exec));

        result = jsNontrivialString(&vm, newString.release());
        thisObject->structure(vm)->setObjectToStringValue(vm, result);
    }
    return JSValue::encode(result);
}
Beispiel #17
0
RefPtr<IDBRequest> IDBObjectStore::put(ExecState& execState, JSValue value, JSValue key, ExceptionCodeWithMessage& ec)
{
    RefPtr<IDBKey> idbKey;
    if (!key.isUndefined())
        idbKey = scriptValueToIDBKey(execState, key);
    return putOrAdd(execState, value, idbKey, IndexedDB::ObjectStoreOverwriteMode::Overwrite, InlineKeyCheck::Perform, ec);
}
RuntimeType runtimeTypeForValue(JSValue value)
{
    if (UNLIKELY(!value))
        return TypeNothing;

    if (value.isUndefined())
        return TypeUndefined;
    if (value.isNull())
        return TypeNull;
    if (value.isAnyInt())
        return TypeAnyInt;
    if (value.isNumber())
        return TypeNumber;
    if (value.isString())
        return TypeString;
    if (value.isBoolean())
        return TypeBoolean;
    if (value.isObject())
        return TypeObject;
    if (value.isFunction())
        return TypeFunction;
    if (value.isSymbol())
        return TypeSymbol;

    return TypeNothing;
}
bool injectIDBKeyIntoScriptValue(DOMRequestState* requestState, PassRefPtr<IDBKey> key, Deprecated::ScriptValue& value, const IDBKeyPath& keyPath)
{
    LOG(StorageAPI, "injectIDBKeyIntoScriptValue");

    ASSERT(keyPath.type() == IndexedDB::KeyPathType::String);

    Vector<String> keyPathElements;
    IDBKeyPathParseError error;
    IDBParseKeyPath(keyPath.string(), keyPathElements, error);
    ASSERT(error == IDBKeyPathParseError::None);

    if (keyPathElements.isEmpty())
        return false;

    ExecState* exec = requestState->exec();

    JSValue parent = ensureNthValueOnKeyPath(exec, value.jsValue(), keyPathElements, keyPathElements.size() - 1);
    if (parent.isUndefined())
        return false;

    if (!set(exec, parent, keyPathElements.last(), idbKeyToJSValue(exec, exec->lexicalGlobalObject(), key.get())))
        return false;

    return true;
}
Beispiel #20
0
JSValue jsTypeStringForValue(VM& vm, JSGlobalObject* globalObject, JSValue v)
{
    if (v.isUndefined())
        return vm.smallStrings.undefinedString();
    if (v.isBoolean())
        return vm.smallStrings.booleanString();
    if (v.isNumber())
        return vm.smallStrings.numberString();
    if (v.isString())
        return vm.smallStrings.stringString();
    if (v.isSymbol())
        return vm.smallStrings.symbolString();
    if (v.isObject()) {
        JSObject* object = asObject(v);
        // Return "undefined" for objects that should be treated
        // as null when doing comparisons.
        if (object->structure(vm)->masqueradesAsUndefined(globalObject))
            return vm.smallStrings.undefinedString();
        if (object->type() == JSFunctionType)
            return vm.smallStrings.functionString();
        if (object->inlineTypeFlags() & TypeOfShouldCallGetCallData) {
            CallData callData;
            JSObject* object = asObject(v);
            if (object->methodTable(vm)->getCallData(object, callData) != CallTypeNone)
                return vm.smallStrings.functionString();
        }
    }
    return vm.smallStrings.objectString();
}
Beispiel #21
0
 void dumpImmediate(JSValue value)
 {
     if (value.isNull())
         write(NullTag);
     else if (value.isUndefined())
         write(UndefinedTag);
     else if (value.isNumber()) {
         if (value.isInt32()) {
             if (!value.asInt32())
                 write(ZeroTag);
             else if (value.asInt32() == 1)
                 write(OneTag);
             else {
                 write(IntTag);
                 write(static_cast<uint32_t>(value.asInt32()));
             }
         } else {
             write(DoubleTag);
             write(value.asDouble());
         }
     } else if (value.isBoolean()) {
         if (value.isTrue())
             write(TrueTag);
         else
             write(FalseTag);
     }
 }
bool injectIDBKeyIntoScriptValue(ExecState& exec, const IDBKeyData& keyData, JSValue value, const IDBKeyPath& keyPath)
{
    LOG(IndexedDB, "injectIDBKeyIntoScriptValue");

    ASSERT(WTF::holds_alternative<String>(keyPath));

    Vector<String> keyPathElements;
    IDBKeyPathParseError error;
    IDBParseKeyPath(WTF::get<String>(keyPath), keyPathElements, error);
    ASSERT(error == IDBKeyPathParseError::None);

    if (keyPathElements.isEmpty())
        return false;

    JSValue parent = ensureNthValueOnKeyPath(exec, value, keyPathElements, keyPathElements.size() - 1);
    if (parent.isUndefined())
        return false;

    auto key = keyData.maybeCreateIDBKey();
    if (!key)
        return false;

    if (!set(exec, parent, keyPathElements.last(), toJS(exec, *exec.lexicalGlobalObject(), key.get())))
        return false;

    return true;
}
static EncodedJSValue JSC_HOST_CALL constructIntlDateTimeFormat(ExecState* state)
{
    // 12.1.2 Intl.DateTimeFormat ([locales [, options]]) (ECMA-402 2.0)
    // 1. If NewTarget is undefined, let newTarget be the active function object, else let newTarget be NewTarget.
    JSValue newTarget = state->newTarget();
    if (newTarget.isUndefined())
        newTarget = state->callee();

    // 2. Let dateTimeFormat be OrdinaryCreateFromConstructor(newTarget, %DateTimeFormatPrototype%).
    VM& vm = state->vm();
    IntlDateTimeFormat* dateTimeFormat = IntlDateTimeFormat::create(vm, jsCast<IntlDateTimeFormatConstructor*>(state->callee()));
    if (dateTimeFormat && !jsDynamicCast<IntlDateTimeFormatConstructor*>(newTarget)) {
        JSValue proto = asObject(newTarget)->getDirect(vm, vm.propertyNames->prototype);
        asObject(dateTimeFormat)->setPrototype(vm, state, proto);
        if (vm.exception())
            return JSValue::encode(JSValue());
    }

    // 3. ReturnIfAbrupt(dateTimeFormat).
    ASSERT(dateTimeFormat);

    // 4. Return InitializeDateTimeFormat(dateTimeFormat, locales, options).
    JSValue locales = state->argument(0);
    JSValue options = state->argument(1);
    dateTimeFormat->initializeDateTimeFormat(*state, locales, options);
    return JSValue::encode(dateTimeFormat);
}
template<> TestEventConstructor::Init convertDictionary<TestEventConstructor::Init>(ExecState& state, JSValue value)
{
    VM& vm = state.vm();
    auto throwScope = DECLARE_THROW_SCOPE(vm);
    bool isNullOrUndefined = value.isUndefinedOrNull();
    auto* object = isNullOrUndefined ? nullptr : value.getObject();
    if (UNLIKELY(!isNullOrUndefined && !object)) {
        throwTypeError(&state, throwScope);
        return { };
    }
    if (UNLIKELY(object && object->type() == RegExpObjectType)) {
        throwTypeError(&state, throwScope);
        return { };
    }
    TestEventConstructor::Init result;
    JSValue bubblesValue = isNullOrUndefined ? jsUndefined() : object->get(&state, Identifier::fromString(&state, "bubbles"));
    if (!bubblesValue.isUndefined()) {
        result.bubbles = convert<IDLBoolean>(state, bubblesValue);
        RETURN_IF_EXCEPTION(throwScope, { });
    } else
        result.bubbles = false;
    JSValue cancelableValue = isNullOrUndefined ? jsUndefined() : object->get(&state, Identifier::fromString(&state, "cancelable"));
    if (!cancelableValue.isUndefined()) {
        result.cancelable = convert<IDLBoolean>(state, cancelableValue);
        RETURN_IF_EXCEPTION(throwScope, { });
    } else
        result.cancelable = false;
    JSValue composedValue = isNullOrUndefined ? jsUndefined() : object->get(&state, Identifier::fromString(&state, "composed"));
    if (!composedValue.isUndefined()) {
        result.composed = convert<IDLBoolean>(state, composedValue);
        RETURN_IF_EXCEPTION(throwScope, { });
    } else
        result.composed = false;
    JSValue attr2Value = isNullOrUndefined ? jsUndefined() : object->get(&state, Identifier::fromString(&state, "attr2"));
    if (!attr2Value.isUndefined()) {
        result.attr2 = convert<IDLDOMString>(state, attr2Value);
        RETURN_IF_EXCEPTION(throwScope, { });
    } else
        result.attr2 = "";
    JSValue attr3Value = isNullOrUndefined ? jsUndefined() : object->get(&state, Identifier::fromString(&state, "attr3"));
    if (!attr3Value.isUndefined()) {
        result.attr3 = convert<IDLDOMString>(state, attr3Value);
        RETURN_IF_EXCEPTION(throwScope, { });
    } else
        result.attr3 = "";
    return result;
}
Beispiel #25
0
void JSArray::sort(ExecState* exec)
{
    unsigned lengthNotIncludingUndefined = compactForSorting();
    if (m_storage->m_sparseValueMap) {
        throwOutOfMemoryError(exec);
        return;
    }

    if (!lengthNotIncludingUndefined)
        return;

    // Converting JavaScript values to strings can be expensive, so we do it once up front and sort based on that.
    // This is a considerable improvement over doing it twice per comparison, though it requires a large temporary
    // buffer. Besides, this protects us from crashing if some objects have custom toString methods that return
    // random or otherwise changing results, effectively making compare function inconsistent.

    Vector<ValueStringPair> values(lengthNotIncludingUndefined);
    if (!values.begin()) {
        throwOutOfMemoryError(exec);
        return;
    }

    for (size_t i = 0; i < lengthNotIncludingUndefined; i++) {
        JSValue value = m_storage->m_vector[i];
        Q_ASSERT(!value.isUndefined());
        values[i].first = value;
    }

    // FIXME: While calling these toString functions, the array could be mutated.
    // In that case, objects pointed to by values in this vector might get garbage-collected!

    // FIXME: The following loop continues to call toString on subsequent values even after
    // a toString call raises an exception.

    for (size_t i = 0; i < lengthNotIncludingUndefined; i++)
        values[i].second = values[i].first.toString(exec);

    if (exec->hadException())
        return;

    // FIXME: Since we sort by string value, a fast algorithm might be to use a radix sort. That would be O(N) rather
    // than O(N log N).

#if HAVE(MERGESORT)
    mergesort(values.begin(), values.size(), sizeof(ValueStringPair), compareByStringPairForQSort);
#else
    // FIXME: The qsort library function is likely to not be a stable sort.
    // ECMAScript-262 does not specify a stable sort, but in practice, browsers perform a stable sort.
    qsort(values.begin(), values.size(), sizeof(ValueStringPair), compareByStringPairForQSort);
#endif

    // FIXME: If the toString function changed the length of the array, this might be
    // modifying the vector incorrectly.

    for (size_t i = 0; i < lengthNotIncludingUndefined; i++)
        m_storage->m_vector[i] = values[i].first;

    checkConsistency(SortConsistencyCheck);
}
EncodedJSValue JSC_HOST_CALL errorProtoFuncToString(ExecState* exec)
{
    JSObject* thisObj = exec->hostThisValue().toThisObject(exec);
    JSValue name = thisObj->get(exec, exec->propertyNames().name);
    JSValue message = thisObj->get(exec, exec->propertyNames().message);

    // Mozilla-compatible format.

    if (!name.isUndefined()) {
        if (!message.isUndefined())
            return JSValue::encode(jsMakeNontrivialString(exec, name.toString(exec), ": ", message.toString(exec)));
        return JSValue::encode(jsNontrivialString(exec, name.toString(exec)));
    }
    if (!message.isUndefined())
        return JSValue::encode(jsMakeNontrivialString(exec, "Error: ", message.toString(exec)));
    return JSValue::encode(jsNontrivialString(exec, "Error"));
}
Beispiel #27
0
bool JSValueIsUndefined(JSContextRef ctx, JSValueRef value)
{
    ExecState* exec = toJS(ctx);
    APIEntryShim entryShim(exec);

    JSValue jsValue = toJS(exec, value);
    return jsValue.isUndefined();
}
Beispiel #28
0
JSValue* ErrorProtoFunc::callAsFunction(ExecState* exec, JSObject* thisObj, const List &/*args*/)
{
  // toString()
  UString s = "Error";

  JSValue* v = thisObj->get(exec, exec->propertyNames().name);
  if (!v->isUndefined()) {
    s = v->toString(exec);
  }

  v = thisObj->get(exec, exec->propertyNames().message);
  if (!v->isUndefined()) {
    s += ": " + v->toString(exec); // Mozilla compatible format
  }

  return jsString(s);
}
EncodedJSValue JSC_HOST_CALL JSPromisePrototypeFuncThen(ExecState* exec)
{
    JSPromise* thisObject = jsDynamicCast<JSPromise*>(exec->thisValue());
    if (!thisObject)
        return throwVMError(exec, createTypeError(exec, "Receiver of then must be a Promise"));

    JSValue fulfillCallback = exec->argument(0);
    if (!fulfillCallback.isUndefined()) {
        CallData callData;
        CallType callType = getCallData(fulfillCallback, callData);
        if (callType == CallTypeNone)
            return throwVMError(exec, createTypeError(exec, "Expected function or undefined as as first argument"));
    }
    
    JSValue rejectCallback = exec->argument(1);
    if (!rejectCallback.isUndefined()) {
        CallData callData;
        CallType callType = getCallData(rejectCallback, callData);
        if (callType == CallTypeNone)
            return throwVMError(exec, createTypeError(exec, "Expected function or undefined as as second argument"));
    }

    JSFunction* callee = jsCast<JSFunction*>(exec->callee());
    JSGlobalObject* globalObject = callee->globalObject();

    // 1. Let promise be a new promise.
    JSPromise* promise = JSPromise::createWithResolver(exec->vm(), globalObject);

    // 2. Let resolver be promise's associated resolver.
    JSPromiseResolver* resolver = promise->resolver();

    // 3. Let fulfillWrapper be a promise wrapper callback for resolver and fulfillCallback if fulfillCallback is
    //    not omitted and a promise callback for resolver and its fulfill algorithm otherwise.
    InternalFunction* fulfillWrapper = wrapCallback(exec, globalObject, fulfillCallback, resolver, JSPromiseCallback::Fulfill);

    // 4. Let rejectWrapper be a promise wrapper callback for resolver and rejectCallback if rejectCallback is
    //    not omitted and a promise callback for resolver and its reject algorithm otherwise.
    InternalFunction* rejectWrapper = wrapCallback(exec, globalObject, rejectCallback, resolver, JSPromiseCallback::Reject);

    // 5. Append fulfillWrapper and rejectWrapper to the context object.
    thisObject->appendCallbacks(exec, fulfillWrapper, rejectWrapper);

    // 6. Return promise.
    return JSValue::encode(promise);
}
bool JSHTMLAllCollection::nameGetter(ExecState* state, PropertyName propertyName, JSValue& value)
{
    JSValue items = namedItems(*state, this, propertyName);
    if (items.isUndefined())
        return false;

    value = items;
    return true;
}