def __args_as_attributes(self):
'''
Validate the arguments passed to the constructor against the spec for
the factory (necessary because we use *args and so the user doesn't
get the feedback they will expect if they make a mistake). As a side
effect we also associated arguments with names and expand defaults
so that attributes are more predictable.
'''
try:
# function wrapper, so we have two levels, and we must construct
# a new, empty function (ie this is a fake function that helps
# us use the code below, even though there's no arguments because
# factory is a dummy generated in make_factory below)
def empty():
return
document(empty, self.factory.factory)
spec = getargspec(empty)
except:
spec = getargspec(self.factory)
names = list(spec.args)
defaults = dict(
zip(names[::-1], spec.defaults[::-1] if spec.defaults else []))
for name in names:
if name in self.__kargs:
self._karg(**{name: self.__kargs[name]})
del self.__kargs[name]
elif self.__args:
self._arg(**{name: self.__args[0]})
self.__args = self.__args[1:]
elif name in defaults:
self._karg(**{name: defaults[name]})
else:
raise TypeError(
fmt("No value for argument '{0}' in "
"{1}(...)", name, self._small_str))
if self.__args:
if spec.varargs:
self._args(**{spec.varargs: self.__args})
else:
raise TypeError(
fmt(
"No parameter matches the argument "
"{0!r} in {1}(...)", self.__args[0], self._small_str))
if self.__kargs:
if spec.keywords:
self.__kargs(**{spec.keywords: self.__kargs})
else:
name = list(self.__kargs.keys())[0]
value = self.__kargs[name]
raise TypeError(
fmt(
"No parameter matches the argument "
"{0}={1!r} in {2}(...)", name, value, self._small_str))
def __args_as_attributes(self):
'''
Validate the arguments passed to the constructor against the spec for
the factory (necessary because we use *args and so the user doesn't
get the feedback they will expect if they make a mistake). As a side
effect we also associated arguments with names and expand defaults
so that attributes are more predictable.
'''
try:
# function wrapper, so we have two levels, and we must construct
# a new, empty function (ie this is a fake function that helps
# us use the code below, even though there's no arguments because
# factory is a dummy generated in make_factory below)
def empty(): return
document(empty, self.factory.factory)
spec = getargspec(empty)
except:
spec = getargspec(self.factory)
names = list(spec.args)
defaults = dict(zip(names[::-1], spec.defaults[::-1] if spec.defaults else []))
for name in names:
if name in self.__kargs:
self._karg(**{name: self.__kargs[name]})
del self.__kargs[name]
elif self.__args:
self._arg(**{name: self.__args[0]})
self.__args = self.__args[1:]
elif name in defaults:
self._karg(**{name: defaults[name]})
else:
raise TypeError(fmt("No value for argument '{0}' in "
"{1}(...)",
name, self._small_str))
if self.__args:
if spec.varargs:
self._args(**{spec.varargs: self.__args})
else:
raise TypeError(fmt("No parameter matches the argument "
"{0!r} in {1}(...)",
self.__args[0], self._small_str))
if self.__kargs:
if spec.keywords:
self.__kargs(**{spec.keywords: self.__kargs})
else:
name = list(self.__kargs.keys())[0]
value = self.__kargs[name]
raise TypeError(fmt("No parameter matches the argument "
"{0}={1!r} in {2}(...)",
name, value, self._small_str))
def make_factory(maker, matcher):
'''
A helper function that assembles a matcher from a wrapper class and
a function that contains the logic.
This works by generating a dummy factory and delegating to
`make_wrapper_factory`.
'''
def factory(*args, **kargs):
if args or kargs:
raise TypeError(fmt('{0}() takes no arguments', matcher.__name__))
return matcher
document(factory, matcher)
factory.factory = matcher
return maker(factory)
def make_factory(maker, matcher):
'''
A helper function that assembles a matcher from a wrapper class and
a function that contains the logic.
This works by generating a dummy factory and delegating to
`make_wrapper_factory`.
'''
def factory(*args, **kargs):
if args or kargs:
raise TypeError(format('{0}() takes no arguments',
matcher.__name__))
return matcher
document(factory, matcher)
factory.factory = matcher
return maker(factory)
def search_factory(factory):
'''
Add the arg processing common to all searching.
'''
def new_factory(first, start, stop, rest=None):
rest = first if rest is None else rest
return factory(first, start, stop, rest)
return document(new_factory, factory)
def search_factory(factory):
'''
Add the arg processing common to all searching.
'''
def new_factory(first, start, stop, rest=None):
rest = first if rest is None else rest
return factory(first, start, stop, rest)
return document(new_factory, factory)
def search_factory(factory):
'''
Add the arg processing common to all searching.
'''
def new_factory(first, start, stop, rest=None,
generator_manager_queue_len=None):
rest = first if rest is None else rest
return factory(first, start, stop, rest, generator_manager_queue_len)
return document(new_factory, factory)
def search_factory(factory):
'''
Add the arg processing common to all searching.
'''
def new_factory(first,
start,
stop,
rest=None,
generator_manager_queue_len=None):
rest = first if rest is None else rest
return factory(first, start, stop, rest, generator_manager_queue_len)
return document(new_factory, factory)