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C++ JSFunction::methodTable方法代码示例

本文整理汇总了C++中JSFunction::methodTable方法的典型用法代码示例。如果您正苦于以下问题：C++ JSFunction::methodTable方法的具体用法？C++ JSFunction::methodTable怎么用？C++ JSFunction::methodTable使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类JSFunction的用法示例。


在下文中一共展示了JSFunction::methodTable方法的9个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: put

void JSFunction::put(JSCell* cell, ExecState* exec, PropertyName propertyName, JSValue value, PutPropertySlot& slot)
{
    JSFunction* thisObject = jsCast<JSFunction*>(cell);
    if (thisObject->isHostFunction()) {
        Base::put(thisObject, exec, propertyName, value, slot);
        return;
    }
    if (propertyName == exec->propertyNames().prototype) {
        // Make sure prototype has been reified, such that it can only be overwritten
        // following the rules set out in ECMA-262 8.12.9.
        PropertySlot slot;
        thisObject->methodTable()->getOwnPropertySlot(thisObject, exec, propertyName, slot);
        thisObject->m_allocationProfile.clear();
        thisObject->m_allocationProfileWatchpoint.notifyWrite();
        // Don't allow this to be cached, since a [[Put]] must clear m_allocationProfile.
        PutPropertySlot dontCache;
        Base::put(thisObject, exec, propertyName, value, dontCache);
        return;
    }
    if (thisObject->jsExecutable()->isStrictMode() && (propertyName == exec->propertyNames().arguments || propertyName == exec->propertyNames().caller)) {
        // This will trigger the property to be reified, if this is not already the case!
        bool okay = thisObject->hasProperty(exec, propertyName);
        ASSERT_UNUSED(okay, okay);
        Base::put(thisObject, exec, propertyName, value, slot);
        return;
    }
    if (propertyName == exec->propertyNames().arguments || propertyName == exec->propertyNames().length || propertyName == exec->propertyNames().name || propertyName == exec->propertyNames().caller) {
        if (slot.isStrictMode())
            throwTypeError(exec, StrictModeReadonlyPropertyWriteError);
        return;
    }
    Base::put(thisObject, exec, propertyName, value, slot);
}
开发者ID:fatman2021，项目名称:webkitgtk，代码行数:33，代码来源:JSFunction.cpp

示例2: defineOwnProperty

bool JSFunction::defineOwnProperty(JSObject* object, ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor, bool throwException)
{
    JSFunction* thisObject = jsCast<JSFunction*>(object);
    if (thisObject->isHostFunction())
        return Base::defineOwnProperty(object, exec, propertyName, descriptor, throwException);

    if (propertyName == exec->propertyNames().prototype) {
        // Make sure prototype has been reified, such that it can only be overwritten
        // following the rules set out in ECMA-262 8.12.9.
        PropertySlot slot;
        thisObject->methodTable()->getOwnPropertySlot(thisObject, exec, propertyName, slot);
    } else if (propertyName == exec->propertyNames().arguments || propertyName == exec->propertyNames().length || propertyName == exec->propertyNames().caller) {
        if (!object->isExtensible()) {
            if (throwException)
                throwError(exec, createTypeError(exec, "Attempting to define property on object that is not extensible."));
            return false;
        }
        if (descriptor.configurablePresent() && descriptor.configurable()) {
            if (throwException)
                throwError(exec, createTypeError(exec, "Attempting to configurable attribute of unconfigurable property."));
            return false;
        }
        if (descriptor.enumerablePresent() && descriptor.enumerable()) {
            if (throwException)
                throwError(exec, createTypeError(exec, "Attempting to change enumerable attribute of unconfigurable property."));
            return false;
        }
        if (descriptor.isAccessorDescriptor()) {
            if (throwException)
                throwError(exec, createTypeError(exec, "Attempting to change access mechanism for an unconfigurable property."));
            return false;
        }
        if (descriptor.writablePresent() && descriptor.writable()) {
            if (throwException)
                throwError(exec, createTypeError(exec, "Attempting to change writable attribute of unconfigurable property."));
            return false;
        }
        if (!descriptor.value())
            return true;
        if (propertyName == exec->propertyNames().arguments && sameValue(exec, descriptor.value(), exec->interpreter()->retrieveArgumentsFromVMCode(exec, thisObject)))
            return true;
        if (propertyName == exec->propertyNames().length && sameValue(exec, descriptor.value(), jsNumber(thisObject->jsExecutable()->parameterCount())))
            return true;
        if (propertyName == exec->propertyNames().caller && sameValue(exec, descriptor.value(), exec->interpreter()->retrieveCallerFromVMCode(exec, thisObject)))
            return true;
        if (throwException)
            throwError(exec, createTypeError(exec, "Attempting to change value of a readonly property."));
        return false;
    }

    return Base::defineOwnProperty(object, exec, propertyName, descriptor, throwException);
}
开发者ID:，项目名称:，代码行数:52，代码来源:

示例3: getOwnPropertyDescriptor

bool JSFunction::getOwnPropertyDescriptor(JSObject* object, ExecState* exec, PropertyName propertyName, PropertyDescriptor& descriptor)
{
    JSFunction* thisObject = jsCast<JSFunction*>(object);
    if (thisObject->isHostFunction())
        return Base::getOwnPropertyDescriptor(thisObject, exec, propertyName, descriptor);
    
    if (propertyName == exec->propertyNames().prototype) {
        PropertySlot slot;
        thisObject->methodTable()->getOwnPropertySlot(thisObject, exec, propertyName, slot);
        return Base::getOwnPropertyDescriptor(thisObject, exec, propertyName, descriptor);
    }
    
    if (propertyName == exec->propertyNames().arguments) {
        if (thisObject->jsExecutable()->isStrictMode()) {
            bool result = Base::getOwnPropertyDescriptor(thisObject, exec, propertyName, descriptor);
            if (!result) {
                thisObject->putDirectAccessor(exec, propertyName, thisObject->globalObject()->throwTypeErrorGetterSetter(exec), DontDelete | DontEnum | Accessor);
                result = Base::getOwnPropertyDescriptor(thisObject, exec, propertyName, descriptor);
                ASSERT(result);
            }
            return result;
        }
        descriptor.setDescriptor(exec->interpreter()->retrieveArgumentsFromVMCode(exec, thisObject), ReadOnly | DontEnum | DontDelete);
        return true;
    }
    
    if (propertyName == exec->propertyNames().length) {
        descriptor.setDescriptor(jsNumber(thisObject->jsExecutable()->parameterCount()), ReadOnly | DontEnum | DontDelete);
        return true;
    }
    
    if (propertyName == exec->propertyNames().name) {
        descriptor.setDescriptor(thisObject->jsExecutable()->nameValue(), ReadOnly | DontEnum | DontDelete);
        return true;
    }

    if (propertyName == exec->propertyNames().caller) {
        if (thisObject->jsExecutable()->isStrictMode()) {
            bool result = Base::getOwnPropertyDescriptor(thisObject, exec, propertyName, descriptor);
            if (!result) {
                thisObject->putDirectAccessor(exec, propertyName, thisObject->globalObject()->throwTypeErrorGetterSetter(exec), DontDelete | DontEnum | Accessor);
                result = Base::getOwnPropertyDescriptor(thisObject, exec, propertyName, descriptor);
                ASSERT(result);
            }
            return result;
        }
        descriptor.setDescriptor(exec->interpreter()->retrieveCallerFromVMCode(exec, thisObject), ReadOnly | DontEnum | DontDelete);
        return true;
    }
    
    return Base::getOwnPropertyDescriptor(thisObject, exec, propertyName, descriptor);
}
开发者ID:fatman2021，项目名称:webkitgtk，代码行数:52，代码来源:JSFunction.cpp

示例4: getOwnPropertyNames

void JSFunction::getOwnPropertyNames(JSObject* object, ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
{
    JSFunction* thisObject = jsCast<JSFunction*>(object);
    if (!thisObject->isHostFunction() && (mode == IncludeDontEnumProperties)) {
        // Make sure prototype has been reified.
        PropertySlot slot;
        thisObject->methodTable()->getOwnPropertySlot(thisObject, exec, exec->propertyNames().prototype, slot);

        propertyNames.add(exec->propertyNames().arguments);
        propertyNames.add(exec->propertyNames().caller);
        propertyNames.add(exec->propertyNames().length);
    }
    Base::getOwnPropertyNames(thisObject, exec, propertyNames, mode);
}
开发者ID:，项目名称:，代码行数:14，代码来源:

示例5: getOwnNonIndexPropertyNames

void JSFunction::getOwnNonIndexPropertyNames(JSObject* object, ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
{
    JSFunction* thisObject = jsCast<JSFunction*>(object);
    if (!thisObject->isHostOrBuiltinFunction() && mode.includeDontEnumProperties()) {
        VM& vm = exec->vm();
        // Make sure prototype has been reified.
        PropertySlot slot(thisObject);
        thisObject->methodTable(vm)->getOwnPropertySlot(thisObject, exec, vm.propertyNames->prototype, slot);

        propertyNames.add(vm.propertyNames->arguments);
        propertyNames.add(vm.propertyNames->caller);
        propertyNames.add(vm.propertyNames->length);
        propertyNames.add(vm.propertyNames->name);
    }
    Base::getOwnNonIndexPropertyNames(thisObject, exec, propertyNames, mode);
}
开发者ID:B-Stefan，项目名称:webkit，代码行数:16，代码来源:JSFunction.cpp

示例6: constructEmptyObject

JSCell* DFG_OPERATION operationCreateThis(ExecState* exec, JSCell* prototype)
{
    JSFunction* constructor = asFunction(exec->callee());
    
#if !ASSERT_DISABLED
    ConstructData constructData;
    ASSERT(constructor->methodTable()->getConstructData(constructor, constructData) == ConstructTypeJS);
#endif
    
    JSGlobalData& globalData = exec->globalData();
    
    Structure* structure;
    if (prototype->isObject())
        structure = asObject(prototype)->inheritorID(globalData);
    else
        structure = constructor->scope()->globalObject->emptyObjectStructure();
    
    return constructEmptyObject(exec, structure);
}
开发者ID:sysrqb，项目名称:chromium-src，代码行数:19，代码来源:DFGOperations.cpp

示例7: evaluate

JSValue JSInjectedScriptHost::evaluate(ExecState* exec)
{
    JSValue expression = exec->argument(0);
    if (!expression.isString())
        return throwError(exec, createError(exec, "String argument expected."));
    JSGlobalObject* globalObject = exec->lexicalGlobalObject();
    JSFunction* evalFunction = globalObject->evalFunction();
    CallData callData;
    CallType callType = evalFunction->methodTable()->getCallData(evalFunction, callData);
    if (callType == CallTypeNone)
        return jsUndefined();
    MarkedArgumentBuffer args;
    args.append(expression);

    bool wasEvalEnabled = globalObject->evalEnabled();
    globalObject->setEvalEnabled(true);
    JSValue result = JSC::call(exec, evalFunction, callType, callData, exec->globalThisValue(), args);
    globalObject->setEvalEnabled(wasEvalEnabled);

    return result;
}
开发者ID:littledj007，项目名称:RespImg-WebCore，代码行数:21，代码来源:JSInjectedScriptHostCustom.cpp

示例8: put

void JSFunction::put(JSCell* cell, ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot)
{
    JSFunction* thisObject = jsCast<JSFunction*>(cell);
    if (thisObject->isHostFunction()) {
        Base::put(thisObject, exec, propertyName, value, slot);
        return;
    }
    if (propertyName == exec->propertyNames().prototype) {
        // Make sure prototype has been reified, such that it can only be overwritten
        // following the rules set out in ECMA-262 8.12.9.
        PropertySlot slot;
        thisObject->methodTable()->getOwnPropertySlot(thisObject, exec, propertyName, slot);
    }
    if (thisObject->jsExecutable()->isStrictMode() && (propertyName == exec->propertyNames().arguments || propertyName == exec->propertyNames().caller)) {
        // This will trigger the property to be reified, if this is not already the case!
        bool okay = thisObject->hasProperty(exec, propertyName);
        ASSERT_UNUSED(okay, okay);
        Base::put(thisObject, exec, propertyName, value, slot);
        return;
    }
    if (propertyName == exec->propertyNames().arguments || propertyName == exec->propertyNames().length)
        return;
    Base::put(thisObject, exec, propertyName, value, slot);
}
开发者ID:sohocoke，项目名称:webkit，代码行数:24，代码来源:JSFunction.cpp

示例9: defineOwnProperty

bool JSFunction::defineOwnProperty(JSObject* object, ExecState* exec, PropertyName propertyName, PropertyDescriptor& descriptor, bool throwException)
{
    JSFunction* thisObject = jsCast<JSFunction*>(object);
    if (thisObject->isHostFunction())
        return Base::defineOwnProperty(object, exec, propertyName, descriptor, throwException);

    if (propertyName == exec->propertyNames().prototype) {
        // Make sure prototype has been reified, such that it can only be overwritten
        // following the rules set out in ECMA-262 8.12.9.
        PropertySlot slot;
        thisObject->methodTable()->getOwnPropertySlot(thisObject, exec, propertyName, slot);
        thisObject->m_allocationProfile.clear();
        thisObject->m_allocationProfileWatchpoint.notifyWrite();
        return Base::defineOwnProperty(object, exec, propertyName, descriptor, throwException);
    }

    bool valueCheck;
    if (propertyName == exec->propertyNames().arguments) {
        if (thisObject->jsExecutable()->isStrictMode()) {
            if (!Base::getOwnPropertyDescriptor(thisObject, exec, propertyName, descriptor))
                thisObject->putDirectAccessor(exec, propertyName, thisObject->globalObject()->throwTypeErrorGetterSetter(exec), DontDelete | DontEnum | Accessor);
            return Base::defineOwnProperty(object, exec, propertyName, descriptor, throwException);
        }
        valueCheck = !descriptor.value() || sameValue(exec, descriptor.value(), exec->interpreter()->retrieveArgumentsFromVMCode(exec, thisObject));
    } else if (propertyName == exec->propertyNames().caller) {
        if (thisObject->jsExecutable()->isStrictMode()) {
            if (!Base::getOwnPropertyDescriptor(thisObject, exec, propertyName, descriptor))
                thisObject->putDirectAccessor(exec, propertyName, thisObject->globalObject()->throwTypeErrorGetterSetter(exec), DontDelete | DontEnum | Accessor);
            return Base::defineOwnProperty(object, exec, propertyName, descriptor, throwException);
        }
        valueCheck = !descriptor.value() || sameValue(exec, descriptor.value(), exec->interpreter()->retrieveCallerFromVMCode(exec, thisObject));
    } else if (propertyName == exec->propertyNames().length)
        valueCheck = !descriptor.value() || sameValue(exec, descriptor.value(), jsNumber(thisObject->jsExecutable()->parameterCount()));
    else if (propertyName == exec->propertyNames().name)
        valueCheck = !descriptor.value() || sameValue(exec, descriptor.value(), thisObject->jsExecutable()->nameValue());
    else
        return Base::defineOwnProperty(object, exec, propertyName, descriptor, throwException);
     
    if (descriptor.configurablePresent() && descriptor.configurable()) {
        if (throwException)
            throwError(exec, createTypeError(exec, ASCIILiteral("Attempting to configurable attribute of unconfigurable property.")));
        return false;
    }
    if (descriptor.enumerablePresent() && descriptor.enumerable()) {
        if (throwException)
            throwError(exec, createTypeError(exec, ASCIILiteral("Attempting to change enumerable attribute of unconfigurable property.")));
        return false;
    }
    if (descriptor.isAccessorDescriptor()) {
        if (throwException)
            throwError(exec, createTypeError(exec, ASCIILiteral("Attempting to change access mechanism for an unconfigurable property.")));
        return false;
    }
    if (descriptor.writablePresent() && descriptor.writable()) {
        if (throwException)
            throwError(exec, createTypeError(exec, ASCIILiteral("Attempting to change writable attribute of unconfigurable property.")));
        return false;
    }
    if (!valueCheck) {
        if (throwException)
            throwError(exec, createTypeError(exec, ASCIILiteral("Attempting to change value of a readonly property.")));
        return false;
    }
    return true;
}
开发者ID:fatman2021，项目名称:webkitgtk，代码行数:65，代码来源:JSFunction.cpp


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