class Layout:
    def __init__(self):
        self.mems = []

    def __eq__(self, other):
        return self.mems == other.mems


class Memory:
    def __init__(self, address=0x0):
        self.inputs = []
        self.address = address
        self.size = 0x0

    def add_input(self, inp):
        assert isinstance(inp, Input)
        self.inputs.append(inp)


class Input:
    pass


class SectionInput(Input):
    def __init__(self, section_name):
        self.section_name = section_name


def load_layout(f):
    return deserialize(json.load(f))


def make_int(txt):
    if txt.startswith('0x'):
        return int(txt[2:], 16)
    else:
        return int(txt)


class LayoutParser:
    def __init__(self):
        toks = ['ID', '{', '}', 'MEMORY', 'ALIGN', '.', pyyacc.EPS, pyyacc.EOF]
        g = pyyacc.Grammar(toks)
        g.add_production('layout', ['MEMORY', '{', 'input_list', '}'])
        g.add_production('input_list', ['MEMORY', '{', 'input_list', '}'])


def deserialize(d):
    layout = Layout()
    for mem_node in d['memories']:
        m = Memory()
        m.address = make_int(mem_node['address'])
        m.size = make_int(mem_node['size'])
        for input_node in mem_node['inputs']:
            pass
    return layout