# 需要导入模块: import code [as 别名]

# 或者: from code import co_consts [as 别名]

def get_generic_cmd(obj, ui, cliclass=GenericCLI, aliases=None, gbl=None):

"""get a GenericCLI (or other) command set wrapping any class instance

object. The wrapped objects public methods have CLI command counterparts

automatically created."""

import new

from pycopia.methodholder import MethodHolder

cmd = cliclass(ui, aliases)

if gbl is None:

gbl = globals()

hashfilter = {}

for name in _get_methodnames(obj):

if hasattr(cmd, name):

continue # don't override already defined methods

# all this mess does is introspect the object methods and map it to a CLI

# object method of the same name, with a docstring showing the attributes

# and their default values, and the actual code mirroring the

# _generic_call method in the GenericCLI class.

else:

obj_meth = getattr(obj, name)

if id(obj_meth.__func__) in hashfilter: # filter out aliases

continue

else:

hashfilter[id(obj_meth.__func__)] = True

mh = MethodHolder(obj_meth)

doc = "%s *\n%s" % (mh, obj_meth.__doc__ or "")

code = cliclass._generic_call.func_code

nc = new.code(code.co_argcount, code.co_nlocals, code.co_stacksize,

code.co_flags, code.co_code,

(doc,)+code.co_consts[1:], # replace docstring

code.co_names, code.co_varnames, code.co_filename,

code.co_name, code.co_firstlineno, code.co_lnotab)

f = new.function(nc, gbl, name)

m = new.instancemethod(f, cmd, cliclass)

setattr(cmd, name, m)

cmd._setup(obj, "Object:%s> " % (obj.__class__.__name__,))

return cmd