import lldb
class fooSynthProvider:
    def __init__(self, valobj, dict):
        self.valobj = valobj;
        self.int_type = valobj.GetType().GetBasicType(lldb.eBasicTypeInt)
    def num_children(self):
        return 3;
    def get_child_at_index(self, index):
        if index == 0:
            child = self.valobj.GetChildMemberWithName('a');
        if index == 1:
            child = self.valobj.CreateChildAtOffset ('fake_a', 1, self.int_type);
        if index == 2:
            child = self.valobj.GetChildMemberWithName('r');
        return child;
    def get_child_index(self, name):
        if name == 'a':
            return 0;
        if name == 'fake_a':
            return 1;
        return 2;
