| class VariableDefinition: | |
| def __init__(self, defs=set()): | |
| self.defs = set(defs) | |
| def add_definition(self, definition): | |
| self.defs.add(definition) | |
| def __contains__(self, item): | |
| return item in self.defs | |
| def __eq__(self, other): | |
| return self.defs == other.defs | |
| def __copy__(self): | |
| return VariableDefinition(set(self.defs)) | |
| def __len__(self): | |
| return len(self.defs) | |
| def __iter__(self): | |
| return iter(self.defs) | |
| def __str__(self): | |
| return "Def: " + str(self.defs) | |