diff options
Diffstat (limited to 'lib/automata.py')
| -rwxr-xr-x | lib/automata.py | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/automata.py b/lib/automata.py index 3220d81..71dcacc 100755 --- a/lib/automata.py +++ b/lib/automata.py @@ -85,6 +85,9 @@ class State: trace_filter -- list of lists. Each sub-list is a trace. Only traces matching one of the provided sub-lists are returned. E.g. trace_filter = [['init', 'foo'], ['init', 'bar']] will only return traces with init as first and foo or bar as second element. """ + + if trace_filter is not None and next(filter(lambda x: x == '$', map(lambda x: x[0], trace_filter)), None) is not None: + yield [] if depth == 0: for trans in self.outgoing_transitions.values(): if trace_filter is not None and len(list(filter(lambda x: x == trans.name, map(lambda x: x[0], trace_filter)))) == 0: @@ -100,7 +103,7 @@ class State: yield [(trans,)] else: for trans in self.outgoing_transitions.values(): - if trace_filter is not None and len(list(filter(lambda x: x == trans.name, map(lambda x: x[0], trace_filter)))) == 0: + if trace_filter is not None and next(filter(lambda x: x == trans.name, map(lambda x: x[0], trace_filter)), None) is None: continue if trace_filter is not None: new_trace_filter = map(lambda x: x[1:], filter(lambda x: x[0] == trans.name, trace_filter)) |