encoder.py 文件源码

def encodeValue(self, encodeFun, client, defMode, maxChunkSize):
        if isinstance(client, univ.SequenceAndSetBase):
            client.setDefaultComponents()
        client.verifySizeSpec()
        substrate = null; idx = len(client)
        # This is certainly a hack but how else do I distinguish SetOf
        # from Set if they have the same tags&constraints?
        if isinstance(client, univ.SequenceAndSetBase):
            # Set
            comps = []
            while idx > 0:
                idx = idx - 1
                if client[idx] is None:  # Optional component
                    continue
                if client.getDefaultComponentByPosition(idx) == client[idx]:
                    continue
                comps.append(client[idx])
            comps.sort(key=lambda x: isinstance(x, univ.Choice) and \
                                     x.getMinTagSet() or x.getTagSet())
            for c in comps:
                substrate += encodeFun(c, defMode, maxChunkSize)
        else:
            # SetOf
            compSubs = []
            while idx > 0:
                idx = idx - 1
                compSubs.append(
                    encodeFun(client[idx], defMode, maxChunkSize)
                    )
            compSubs.sort()  # perhaps padding's not needed
            substrate = null
            for compSub in compSubs:
                substrate += compSub
        return substrate, 1