def settings(func): #{{{
signal = getattr(func, 'signal', None)
if isinstance(signal, DecoSignalExtension) and isinstance(signal, BaseSignal):
DecoSignalFunction = func
elif not _isf(func) and not isclass(func):
raise TypeError('argument must be a python function or a python class')
else:
signal = mkdeco(func, opt)
args, vargs, vkeys, defaults = spec = cgetargspec(func)
code_args = args + [v for v in (vargs, vkeys) if v != None]
fcode = Code(CodeList(), (), code_args, bool(vargs), bool(vkeys), True, 'f', '<dynamic decorator signal function>', 1, None)
fcode.code[:] = ([(SetLineno, 2), (LOAD_GLOBAL, 'signal')] + bp_call_args(*spec) +
[(RETURN_VALUE, None)])
DecoSignalFunction = newfunction(fcode.to_code(), locals(), 'DecoSignalFunction', default_argvals(args, defaults))
d = DecoSignalFunction
d = wraps(func)(d)
d.signal = signal
signal.signalfunc = d
for n in signal.decorators:
setattr(d, n, getattr(signal, n))
opt['MAKE_SIGNAL'] = 1
return global_settings(d, **opt)(d)
def _func_settings(self, func): #{{{
global_settings = self._vars['global_settings']
mk_sig = global_settings.pop('MAKE_SIGNAL', 0)
s = self._csettings()
options = self._func_settings_options(s, global_settings)
block = self._blocked_func_settings()
custom_block = self._custom_blocked_func_settings
news = dict((k, v) for k, v in s.iteritems() if k not in block and not custom_block(k))
ism = bool(s.get('ismethod', False))
istup = isinstance(func, tuple)
meth_app = self._vars['methods'].append
# Add to methods var so callfunc can process both
# conditional callables and target callables
if ism:
callmeth = bool(s.get('callmethod', False))
if callmeth and not mk_sig:
if options['overload']:
raise ValueError("Keywords 'overload' and 'callmethod' cannot be True at the same time")
func_obj = func[1] if istup else func
name, vardict = func_obj.__name__, dict()
# Low-level function creation to avoid use of exec
# which allows turning this class into a builtin type
args, vargs, vkeys, defaults = spec = cgetargspec(func_obj)
code_args = args + [v for v in (vargs, vkeys) if v != None]
fcode = Code(CodeList(), (), code_args, bool(vargs), bool(vkeys), True, 'f', '<dyn>', 1, None)
fcode.code[:] = ([(SetLineno, 2), (LOAD_GLOBAL, 'getattr'),
(LOAD_FAST, 'self'), (LOAD_CONST, name),
(CALL_FUNCTION, 2),
] + bp_call_args(callmethod=True, *spec) +
[(RETURN_VALUE, None)])
f = newfunction(fcode.to_code(), dict(getattr=getattr), 'f', default_argvals(args, defaults))
func = (func[0], f) if istup else f
if istup:
for f in func:
meth_app(f)
else:
meth_app(func)
return func, news, options
def factory(func):
args, vargs, vkeys, defaults = spec = cgetargspec(func)
names = set(list(args) + [vargs, vkeys])
n, _join, csg = 'cs_str', ''.join, dict(__builtin__.__dict__)
csg.update(self.connect_settings.get('globals', {}))
# Find name that is unbound
while n in names or n in csg:
n = _join(n, '_')
# Pre-compile expression into a code object
csg[n] = compile_str(s.strip(), __file__, 'eval')
# Build a new function
code_args = args + [v for v in (vargs, vkeys) if v != None]
fcode = Code(CodeList(), (), code_args, bool(vargs), bool(vkeys), True, 'whenfunc', '<dyn>', 1, None)
fcode.code[:] = ([(SetLineno, 2), (LOAD_GLOBAL, 'bool'), (LOAD_GLOBAL, 'eval'),
(LOAD_GLOBAL, n), (CALL_FUNCTION, 1), (CALL_FUNCTION, 1),
(RETURN_VALUE, None)])
whenfunc = newfunction(fcode.to_code(), csg, 'whenfunc', default_argvals(args, defaults))
self._vars['settings']['weakcondf'] = False
return condfunc(whenfunc)(func)
def factory(func):
args, vargs, vkeys, defaults = cgetargspec(func)
names = set(list(args) + [vargs, vkeys])
n, sn, _join, csg = 'cs_str', 'cs_stop_str', ''.join, dict(__builtin__.__dict__)
csg['StopCascade'] = StopCascade
csg.update(self.connect_settings.get('globals', {}))
# Find names that are unbound
while n in names or n in csg:
n = _join(n, '_')
while sn in names or sn in csg:
sn = _join(sn, '_')
# Pre-compile expression into a code object
csg[n] = compile_str(s.strip(), '<dynamic cascade expression>', 'eval')
csg[sn] = (stop if not isinstance(stop, basestring)
else compile_str(str(stop).strip(), '<dynamic cascade stop condition>', 'eval'))
# Build a new function:
# def cascadefunc(*args, **kwargs): # Not really, dynamically generate args
# ret = bool(eval(s))
# if isinstance(stop, basestring):
# stop = eval(stop)
# if bool(stop):
# raise StopCascade(ret)
# return ret
code_args = args + [v for v in (vargs, vkeys) if v != None]
fcode = Code(CodeList(), (), code_args, bool(vargs), bool(vkeys), True, 'cascadefunc', '<dynamic cascade function>', 1, None)
labels = map(lambda i: Label(), xrange(4))
fcode.code[:] = ([(SetLineno, 2),
(LOAD_GLOBAL, 'bool'),
(LOAD_GLOBAL, 'eval'),
(LOAD_GLOBAL, n),
(CALL_FUNCTION, 1),
(CALL_FUNCTION, 1),
(STORE_FAST, 'ret'),
(SetLineno, 3),
(LOAD_GLOBAL, sn),
(STORE_FAST, 'stop'),
(SetLineno, 4),
(LOAD_GLOBAL, 'isinstance'),
(LOAD_FAST, 'stop'),
(LOAD_GLOBAL, 'basestring'),
(CALL_FUNCTION, 2),
(JUMP_IF_FALSE, labels[0]),
(POP_TOP, None),
(SetLineno, 5),
(LOAD_GLOBAL, 'eval'),
(LOAD_FAST, 'stop'),
(CALL_FUNCTION, 1),
(STORE_FAST, 'stop'),
(JUMP_FORWARD, labels[1]),
(labels[0], None),
(POP_TOP, None),
(labels[1], None),
(SetLineno, 6),
(LOAD_FAST, 'stop'),
(JUMP_IF_FALSE, labels[2]),
(POP_TOP, None),
(SetLineno, 7),
(LOAD_GLOBAL, 'StopCascade'),
(LOAD_FAST, 'ret'),
(CALL_FUNCTION, 1),
(RAISE_VARARGS, 1),
(JUMP_FORWARD, labels[3]),
(labels[2], None),
(POP_TOP, None),
(SetLineno, 8),
(labels[3], None),
(LOAD_FAST, 'ret'),
(RETURN_VALUE, None)])
cascadefunc = newfunction(fcode.to_code(), csg, 'cascadefunc', default_argvals(args, defaults))
self._vars['settings']['weakcondf'] = False
return condfunc(cascadefunc)(func)