Module diffq.utils
Expand source code
# Copyright (c) Facebook, Inc. and its affiliates.
# All rights reserved.
#
# This source code is licensed under the license found in the
# LICENSE file in the root directory of this source tree.
import functools
import inspect
from typing import Optional, List
def simple_repr(obj, attrs: Optional[List[str]] = None, overrides={}):
"""
Return a simple representation string for `obj`.
If `attrs` is not None, it should be a list of attributes to include.
"""
params = inspect.signature(obj.__class__).parameters
attrs_repr = []
if attrs is None:
attrs = params.keys()
for attr in attrs:
display = False
if attr in overrides:
value = overrides[attr]
elif hasattr(obj, attr):
value = getattr(obj, attr)
else:
continue
if attr in params:
param = params[attr]
if param.default is inspect._empty or value != param.default:
display = True
else:
display = True
if display:
attrs_repr.append(f"{attr}={value}")
return f"{obj.__class__.__name__}({','.join(attrs_repr)})"
def capture_init(init):
"""capture_init.
Decorate `__init__` with this, and you can then
recover the *args and **kwargs passed to it in `self._init_args_kwargs`
"""
signature = inspect.signature(init)
@functools.wraps(init)
def __init__(self, *args, **kwargs):
bound = signature.bind(self, *args, **kwargs)
actual_kwargs = dict(bound.arguments)
del actual_kwargs['self']
actual_kwargs.update(bound.kwargs)
self._init_kwargs = actual_kwargs
init(self, *args, **kwargs)
return __init__
Functions
def capture_init(init)
-
capture_init.
Decorate
__init__
with this, and you can then recover the args and *kwargs passed to it inself._init_args_kwargs
Expand source code
def capture_init(init): """capture_init. Decorate `__init__` with this, and you can then recover the *args and **kwargs passed to it in `self._init_args_kwargs` """ signature = inspect.signature(init) @functools.wraps(init) def __init__(self, *args, **kwargs): bound = signature.bind(self, *args, **kwargs) actual_kwargs = dict(bound.arguments) del actual_kwargs['self'] actual_kwargs.update(bound.kwargs) self._init_kwargs = actual_kwargs init(self, *args, **kwargs) return __init__
def simple_repr(obj, attrs: Optional[List[str]] = None, overrides={})
-
Return a simple representation string for
obj
. Ifattrs
is not None, it should be a list of attributes to include.Expand source code
def simple_repr(obj, attrs: Optional[List[str]] = None, overrides={}): """ Return a simple representation string for `obj`. If `attrs` is not None, it should be a list of attributes to include. """ params = inspect.signature(obj.__class__).parameters attrs_repr = [] if attrs is None: attrs = params.keys() for attr in attrs: display = False if attr in overrides: value = overrides[attr] elif hasattr(obj, attr): value = getattr(obj, attr) else: continue if attr in params: param = params[attr] if param.default is inspect._empty or value != param.default: display = True else: display = True if display: attrs_repr.append(f"{attr}={value}") return f"{obj.__class__.__name__}({','.join(attrs_repr)})"