def _matchlambda(func, line): """check if lambda object 'func' matches raw line of code 'line'""" from dill.detect import code as getcode from dill.detect import freevars, globalvars, varnames dummy = lambda: '__this_is_a_big_dummy_function__' # process the line (removing leading whitespace, etc) lhs, rhs = line.split('lambda ', 1)[-1].split(":", 1) #FIXME: if !1 inputs try: #FIXME: unsafe _ = eval("lambda %s : %s" % (lhs, rhs), globals(), locals()) except: _ = dummy # get code objects, for comparison _, code = getcode(_).co_code, getcode(func).co_code # check if func is in closure _f = [line.count(i) for i in freevars(func).keys()] if not _f: # not in closure # check if code matches if _ == code: return True return False # weak check on freevars if not all(_f): return False #XXX: VERY WEAK # weak check on varnames and globalvars _f = varnames(func) _f = [line.count(i) for i in _f[0] + _f[1]] if _f and not all(_f): return False #XXX: VERY WEAK _f = [line.count(i) for i in globalvars(func).keys()] if _f and not all(_f): return False #XXX: VERY WEAK # check if func is a double lambda if (line.count('lambda ') > 1) and (lhs in freevars(func).keys()): _lhs, _rhs = rhs.split('lambda ', 1)[-1].split(":", 1) #FIXME: if !1 inputs try: #FIXME: unsafe _f = eval("lambda %s : %s" % (_lhs, _rhs), globals(), locals()) except: _f = dummy # get code objects, for comparison _, code = getcode(_f).co_code, getcode(func).co_code if len(_) != len(code): return False #NOTE: should be same code same order, but except for 't' and '\x88' _ = set((i, j) for (i, j) in zip(_, code) if i != j) if len(_) != 1: return False #('t','\x88') return True # check indentsize if not indentsize(line): return False #FIXME: is this a good check??? # check if code 'pattern' matches #XXX: or pattern match against dis.dis(code)? (or use uncompyle2?) _ = _.split(_[0]) # 't' #XXX: remove matching values if starts the same? _f = code.split(code[0]) # '\x88' #NOTE: should be same code different order, with different first element _ = dict( re.match('([\W\D\S])(.*)', _[i]).groups() for i in range(1, len(_))) _f = dict( re.match('([\W\D\S])(.*)', _f[i]).groups() for i in range(1, len(_f))) if (_.keys() == _f.keys()) and (sorted(_.values()) == sorted(_f.values())): return True return False
def _matchlambda(func, line): """check if lambda object 'func' matches raw line of code 'line'""" from dill.detect import code as getcode from dill.detect import freevars, globalvars, varnames dummy = lambda : '__this_is_a_big_dummy_function__' # process the line (removing leading whitespace, etc) lhs,rhs = line.split('lambda ',1)[-1].split(":", 1) #FIXME: if !1 inputs try: #FIXME: unsafe _ = eval("lambda %s : %s" % (lhs,rhs), globals(),locals()) except: _ = dummy # get code objects, for comparison _, code = getcode(_).co_code, getcode(func).co_code # check if func is in closure _f = [line.count(i) for i in freevars(func).keys()] if not _f: # not in closure # check if code matches if _ == code: return True return False # weak check on freevars if not all(_f): return False #XXX: VERY WEAK # weak check on varnames and globalvars _f = varnames(func) _f = [line.count(i) for i in _f[0]+_f[1]] if _f and not all(_f): return False #XXX: VERY WEAK _f = [line.count(i) for i in globalvars(func).keys()] if _f and not all(_f): return False #XXX: VERY WEAK # check if func is a double lambda if (line.count('lambda ') > 1) and (lhs in freevars(func).keys()): _lhs,_rhs = rhs.split('lambda ',1)[-1].split(":",1) #FIXME: if !1 inputs try: #FIXME: unsafe _f = eval("lambda %s : %s" % (_lhs,_rhs), globals(),locals()) except: _f = dummy # get code objects, for comparison _, code = getcode(_f).co_code, getcode(func).co_code if len(_) != len(code): return False #NOTE: should be same code same order, but except for 't' and '\x88' _ = set((i,j) for (i,j) in zip(_,code) if i != j) if len(_) != 1: return False #('t','\x88') return True # check indentsize if not indentsize(line): return False #FIXME: is this a good check??? # check if code 'pattern' matches #XXX: or pattern match against dis.dis(code)? (or use uncompyle2?) _ = _.split(_[0]) # 't' #XXX: remove matching values if starts the same? _f = code.split(code[0]) # '\x88' #NOTE: should be same code different order, with different first element _ = dict(re.match('([\W\D\S])(.*)', _[i]).groups() for i in range(1,len(_))) _f = dict(re.match('([\W\D\S])(.*)', _f[i]).groups() for i in range(1,len(_f))) if (_.keys() == _f.keys()) and (sorted(_.values()) == sorted(_f.values())): return True return False