typish.functions._get_alias.get_alias()

Complexity

Conditions

4

Size

Total Lines	19
Code Lines	10

Duplication

Lines	19
Ratio	100 %

Importance

Changes

0

import typing
@lru_cache()

This code seems to be duplicated in your project.

def get_alias(cls: T) -> typing.Optional[T]:
    """
    Return the alias from the ``typing`` module for ``cls``. For example, for
    ``cls=list``, the result would be ``typing.List``. If ``cls`` is
    parameterized (>=3.9), then a parameterized ``typing`` equivalent is
    returned. If no alias exists for ``cls``, then ``None`` is returned.
    If ``cls`` already is from ``typing`` it is returned as is.
    :param cls: the type for which the ``typing`` equivalent is to be found.
    :return: the alias from ``typing``.
    """
    if is_from_typing(cls):
        return cls
    alias = _alias_per_type.get(cls.__name__, None)
    if alias:
        args = getattr(cls, '__args__', tuple())
        if args:
            alias = alias[args]
    return alias