def apply(self, workbench, effective):
payload = self.payload
name = self.name
_next_method = getattr(workbench.origin, self.name)
if utils.isclass(workbench.origin):
@wraps(payload)
def wrapper(self, *args, **kw):
__traceback_info__ = name
@wraps(_next_method)
def _next(*args, **kw):
return _next_method(self, *args, **kw)
# All _next methods, not just for the current name,
# are available via _next.all
_next.all = AllNext(workbench.origin, self)
return payload(_next, self, *args, **kw)
else:
@wraps(payload)
def wrapper(self, *args, **kw):
__traceback_info__ = name
@wraps(_next_method)
def _next(*args, **kw):
return _next_method(*args, **kw)
# All _next methods, not just for the current name,
# are available via _next.all
_next.all = AllNext(workbench.origin)
return payload(_next, self, *args, **kw)
# set wrapper
workbench.dct[self.name] = wrapper
return True
def apply(self, workbench, effective):
function_list = list(self.function_list)
# If the last function is a default or overwrite instruction,
# we pop it off and later evaluate its usage versus a function
# retrieved from the origin. If origin is an instance, this
# function builds the bridge to it and therefore needs to be
# bound to it.
instr = None
if isinstance(function_list[-1], (default, overwrite)):
instr = function_list.pop()
fn = instr.payload
if not utils.isclass(workbench.origin):
fn = fn.__get__(workbench.origin, workbench.origin.__class__)
# overwrite wins over origin, default loses
if isinstance(instr, overwrite):
_next_method = fn
else:
try:
_next_method = getattr(workbench.origin, self.name)
except AttributeError:
if isinstance(instr, default):
_next_method = fn
else:
raise
# nest remaining functions
for i, fn in enumerate(reversed(function_list)):
_next_is_bound = (i == 0) and not utils.isclass(workbench.origin)
_next_method = self._wrap(workbench.origin, fn,
_next_method, _next_is_bound)
# set wrapper
workbench.dct[self.name] = _next_method
return True