如何在函数中的class里的装饰器中调用外层class中的变量

Question

class libAddress(tfLibClass):
    """
    @class libAddress
    @brief Pack some common APIs for Pba/Lba 
    """
    def __init__(self, testcase):
        """
        @fn __init__
        @brief Initialization of the commands class.  Sets class instance variables.
        @retval This method returns no values.
        @exception This method raises no exceptions.
        """
        super(libAddress, self).__init__(testcase)
        self.storPhyInfo               = self.testcase.vs.getStoragePhyInfo()
        self.rgPageCntPerRgBlk         = self.storPhyInfo.numPagesInBlock
        
    def _getPbaStr(self):
        class pbaStr(ctypes.LittleEndianStructure):
             _fields_ = [
                                ("unit",    ctypes.c_uint32, self.cfgAddr.pbaBitsCountOfUnit), 
                                ("die",     ctypes.c_uint32, self.cfgAddr.pbaBitsCountOfDie),
                                ("rgRow",   ctypes.c_uint32, self.cfgAddr.pbaBitsCountOfRgRow),
                                ("rg",      ctypes.c_uint32, self.cfgAddr.pbaBitsCountOfRg),
                                #no revd bit("rsvd",   ctypes.c_uint32, self.cfgAddr.pbaBitsCountOfRsvd),
                                #RgBlk & RgPage add here only for parsing RgRow,not normal Pba struct
                                # ("rgPage",  ctypes.c_uint32, self.cfgAddr.pbaBitsCountOfRgPage),
                                # ("rgBlk",   ctypes.c_uint32, self.cfgAddr.pbaBitsCountOfRgBlk),
                                ]
            @property
            def rgPage(self):
                return self.rgPage
            @rgPage.setter
            def rgPage(self, rgPageVal):
                rgBlkOldVal = self.rgRow // self.rgPageCntPerRgBlk         
                rgRawVal = rgBlkOldVal * self.rgPageCntPerRgBlk + rgPageVal
                self.rgRow = rgRawVal
    return type('PBAStrCls', (pbaStr,), {})

直接调用self.rgPageCntPerRgBlk 会报AttributeError: 'PBAStrCls' object has no attribute 'rgPageCntPerRgBlk'，如何在以上rgPage的函数中调用self.rgPageCntPerRgBlk

Answer 1

基于new Bing的编写：
在您提供的代码中，rgPage属性的setter方法试图访问self.rgPageCntPerRgBlk，但是这个属性是定义在libAddress类中的，而不是在内部类pbaStr中。由于pbaStr类没有定义rgPageCntPerRgBlk属性，所以会报错。

您可以通过将libAddress类的实例作为参数传递给pbaStr类来解决此问题。例如，在_getPbaStr方法中，您可以将当前实例（即self）作为参数传递给pbaStr类：

def _getPbaStr(self):
    class pbaStr(ctypes.LittleEndianStructure):
        def __init__(self, lib_address):
            self.lib_address = lib_address
            ...
        ...
        @rgPage.setter
        def rgPage(self, rgPageVal):
            rgBlkOldVal = self.rgRow // self.lib_address.rgPageCntPerRgBlk
            ...

然后，在创建pbaStr类的实例时，您可以将当前实例（即self）作为参数传递：

pba_str = pbaStr(self)

这样，在pbaStr类中，您就可以通过访问self.lib_address.rgPageCntPerRgBlk来访问外层类中的变量了。
修改过后：

class libAddress(tfLibClass):
    """
    @class libAddress
    @brief Pack some common APIs for Pba/Lba 
    """
    def __init__(self, testcase):
        """
        @fn __init__
        @brief Initialization of the commands class.  Sets class instance variables.
        @retval This method returns no values.
        @exception This method raises no exceptions.
        """
        super(libAddress, self).__init__(testcase)
        self.storPhyInfo               = self.testcase.vs.getStoragePhyInfo()
        self.rgPageCntPerRgBlk         = self.storPhyInfo.numPagesInBlock
        
    def _getPbaStr(self):
        class pbaStr(ctypes.LittleEndianStructure):
            # 添加一个初始化方法，接收外层类的实例作为参数
            def __init__(self, lib_address):
                self.lib_address = lib_address
            _fields_ = [
                            ("unit",    ctypes.c_uint32, self.cfgAddr.pbaBitsCountOfUnit), 
                            ("die",     ctypes.c_uint32, self.cfgAddr.pbaBitsCountOfDie),
                            ("rgRow",   ctypes.c_uint32, self.cfgAddr.pbaBitsCountOfRgRow),
                            ("rg",      ctypes.c_uint32, self.cfgAddr.pbaBitsCountOfRg),
                            #no revd bit("rsvd",   ctypes.c_uint32, self.cfgAddr.pbaBitsCountOfRsvd),
                            #RgBlk & RgPage add here only for parsing RgRow,not normal Pba struct
                            # ("rgPage",  ctypes.c_uint32, self.cfgAddr.pbaBitsCountOfRgPage),
                            # ("rgBlk",   ctypes.c_uint32, self.cfgAddr.pbaBitsCountOfRgBlk),
                            ]
            @property
            def rgPage(self):
                return self.rgPage
            @rgPage.setter
            def rgPage(self, rgPageVal):
                # 通过访问self.lib_address.rgPageCntPerRgBlk来访问外层类中的变量
                rgBlkOldVal = self.rgRow // self.lib_address.rgPageCntPerRgBlk         
                rgRawVal = rgBlkOldVal * self.lib_address.rgPageCntPerRgBlk + rgPageVal
                self.rgRow = rgRawVal

        # 在创建pbaStr类的实例时，将当前实例（即self）作为参数传递
        pba_str = pbaStr(self)