def unsatisfied(self, ba):
m = self.get_meta(ba)
if m.sub is not None:
raise errors.MissingRequiredArguments((self,))
if m.get_deriv().unsatisfied:
return super(DecoratedArgumentParameter, self).unsatisfied(ba)
else:
return False
def coerce_value(self, arg, ba):
val = super(DecoratedArgumentParameter, self).coerce_value(arg, ba)
d = self.get_meta(ba).pop_sub()
if d is None:
if self.cli.required:
raise errors.MissingRequiredArguments(self.cli.required)
args = []
kwargs = {}
else:
args = d.args
kwargs = d.kwargs
return self.decorator(val, *args, **kwargs)
def process_arguments(self):
"""Process the arguments in `.in_args`, setting the `.func`,
`.post_name`, `.args` and `.kwargs` attributes as a result.
This methods reads `str`'s from `.in_args`. For each one, it finds the
relevant `Parameter` instance in `.posparam` or `.namedparam` and
delegates processing to it """
self.posparam = iter(self.sig.positional)
self.namedparams = dict(self.sig.aliases)
self.unsatisfied = set(self.sig.required)
self.not_provided = set(self.sig.optional)
self.sticky = None
self.posarg_only = False
self.skip = 0
with _SeekFallbackCommand():
for i, arg in enumerate(self.in_args):
if self.skip > 0:
self.skip -= 1
continue
with errors.SetArgumentErrorContext(pos=i, val=arg, ba=self):
if self.posarg_only or len(arg) < 2 or arg[0] != '-':
if self.sticky is not None:
param = self.sticky
else:
try:
param = next(self.posparam)
except StopIteration:
exc = errors.TooManyArguments(self.in_args[i:])
exc.__cause__ = None
raise exc
elif arg == '--':
self.posarg_only = True
continue
else:
if arg.startswith('--'):
name = arg.partition('=')[0]
else:
name = arg[:2]
try:
param = self.namedparams[name]
except KeyError:
raise errors.UnknownOption(name)
with errors.SetArgumentErrorContext(param=param):
param.read_argument(self, i)
param.apply_generic_flags(self)
if not self.func:
if self.unsatisfied:
unsatisfied = []
for p in self.unsatisfied:
with errors.SetArgumentErrorContext(param=p):
if p.unsatisfied(self):
unsatisfied.append(p)
if unsatisfied:
raise errors.MissingRequiredArguments(unsatisfied)
for p in self.sig.parameters.values():
p.post_parse(self)
del self.sticky, self.posarg_only, self.skip, self.unsatisfied, self.not_provided
def __init__(self, sig, args, name):
self.sig = sig
self.name = name
self.in_args = tuple(args)
self.func = None
self.post_name = []
self.args = []
self.kwargs = {}
self.meta = {}
self.posparam = iter(self.sig.positional)
self.sticky = None
self.posarg_only = False
self.skip = 0
self.unsatisfied = set(self.sig.required)
with _SeekFallbackCommand():
for i, arg in enumerate(self.in_args):
if self.skip > 0:
self.skip -= 1
continue
with errors.SetArgumentErrorContext(pos=i, val=arg, ba=self):
if self.posarg_only or len(arg) < 2 or arg[0] != '-':
if self.sticky is not None:
param = self.sticky
else:
try:
param = next(self.posparam)
except StopIteration:
exc = errors.TooManyArguments(self.in_args[i:])
exc.__cause__ = None
raise exc
elif arg == '--':
self.posarg_only = True
continue
else:
if arg.startswith('--'):
name = arg.partition('=')[0]
else:
name = arg[:2]
try:
param = self.sig.aliases[name]
except KeyError:
raise errors.UnknownOption(name)
with errors.SetArgumentErrorContext(param=param):
param.read_argument(self, i)
param.apply_generic_flags(self)
if not self.func:
if self.unsatisfied:
unsatisfied = []
for p in self.unsatisfied:
with errors.SetArgumentErrorContext(param=p):
if p.unsatisfied(self):
unsatisfied.append(p)
if unsatisfied:
raise errors.MissingRequiredArguments(unsatisfied)
for p in self.sig.parameters.values():
p.post_parse(self)
del self.sticky, self.posarg_only, self.skip, self.unsatisfied