Method copy_common

mypy/copytype.py:129–134

(self, t: ProperType, t2: ProperType)

        assert False, "only ProperTypes supported"

    def copy_common(self, t: ProperType, t2: ProperType) -> ProperType:
        t2.line = t.line
        t2.column = t.column
        t2.can_be_false = t.can_be_false
        t2.can_be_true = t.can_be_true
        return t2