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from __future__ import unicode_literals
from .base import Always, Never
from .types import SimpleFilter, CLIFilter
__all__ = (
'to_cli_filter',
'to_simple_filter',
)
_always = Always()
_never = Never()
def to_simple_filter(bool_or_filter):
"""
Accept both booleans and CLIFilters as input and
turn it into a SimpleFilter.
"""
if not isinstance(bool_or_filter, (bool, SimpleFilter)):
raise TypeError('Expecting a bool or a SimpleFilter instance. Got %r' % bool_or_filter)
return {
True: _always,
False: _never,
}.get(bool_or_filter, bool_or_filter)
def to_cli_filter(bool_or_filter):
"""
Accept both booleans and CLIFilters as input and
turn it into a CLIFilter.
"""
if not isinstance(bool_or_filter, (bool, CLIFilter)):
raise TypeError('Expecting a bool or a CLIFilter instance. Got %r' % bool_or_filter)
return {
True: _always,
False: _never,
}.get(bool_or_filter, bool_or_filter)
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