basicTypes.py

from collections import namedtuple

Pointer = namedtuple('Pointer', 'pointedType target')
Array = namedtuple('Array', 'pointedType length')
Stack = namedtuple('Stack', 'offset')
Struct = namedtuple('Struct', 'name size parent members')
EnumType = namedtuple('EnumType', 'enum')
Enum = namedtuple('Enum', 'name base values')
Flag = namedtuple('Flag', 'base bits')
FunctionSignature = namedtuple('FunctionSignature', 'name args')
Variable = namedtuple('Variable', 'name type')

class Primitive:
    lookup = {}
    def __init__(self, name, size):
        self.size = size
        self.name = name
        Primitive.lookup[name] = self
    def __repr__(self):
        return 'Primitive({})'.format(self.name)
    def __format__(self, spec):
        return self.name

unknown = Primitive('unknown', 0)
bad = Primitive('bad', 0)
boolean = Primitive('boolean', 4)   #1/0 boolean, full word
word = Primitive('word', 4)
address = Primitive('address', 4)
short = Primitive('short', 2)
ushort = Primitive('ushort', 2)
byte = Primitive('byte', 1)
ubyte = Primitive('ubyte', 1)

single = Primitive('single' ,4)
double = Primitive('double', 8)

def getCode(t):
    codeTable = {
        unknown: '',
        bad    : 'x',
        boolean: '?',
        word   : 'w',
        address: 'p',
        short  : 'h',
        ushort : 'H',
        byte   : 'b',
        ubyte  : 'B',
        single : 'f',
        double : 'd'
    }
    return codeTable[t] if isinstance(t, Primitive) else 'p'

def isIndexable(t):
    return isinstance(t, Array) or isinstance(t, str)