def tighten_guarantees(tlsf_file: str) -> Tuple[str, Atom]:
tlsf = open(tlsf_file).read()
matches = re.findall(r"(GUARANTEES( |\n)*?\{(.|\n)*?\})", tlsf, re.M)
if len(matches) > 1:
"Multiple guarantees clauses. Not doing anything in this case."
if len(matches) == 0:
"No guarantees clauses. Not doing anything in this case."
# TODO
print("Assuming tlsf file does not use definitions in guarantees.")
match: str = matches[0][0]
without_header = match.replace("GUARANTEES", "").replace("{", "").replace(
"}", "").strip().strip(";")
guarantee = "(" + without_header.replace(";", ") & (") + ")"
to_LTL = string_to_ltl(guarantee)
(tightened, new_out, end_act) = tighten_ltl(to_LTL)
tightened_str = str(tightened)
tightened_tlsf = tlsf.replace(without_header, tightened_str)
tightened_tlsf = re.sub(
r"OUTPUTS( |\n*?)\{", "OUTPUTS {\n\t" +
";\n\n\t".join(map(lambda o: str(o), new_out)) + ";\n", tightened_tlsf,
re.M)
path = tlsf_file.replace(".tlsf", "") + "-tightened" + ".tlsf"
tightened_tlsf_file = open(path, "w+")
tightened_tlsf_file.seek(0)
tightened_tlsf_file.write(tightened_tlsf)
tightened_tlsf_file.truncate()
## TODO Need to add end events to outputs
return (path, end_act)
def test_tighten_ltl_0(self):
ltl = eventually(Atom("a"))
tightened = tighten_ltl(ltl)
print(tightened)
if tightened is None:
self.fail()
def test_tighten_ltl_6(self):
ltl = orr(next(Atom("a")), Atom("b"))
tightened = tighten_ltl(ltl)
print(tightened)
if tightened is None:
self.fail()
def test_tighten_ltl_5(self):
ltl = nott(next(Atom("a")))
tightened = tighten_ltl(ltl)
print(tightened)
if tightened is not None:
self.fail()
def test_tighten_ltl_2(self):
ltl = next(Atom("a"))
tightened = tighten_ltl(ltl)
print(tightened)
if tightened is None:
self.fail()
def test_tighten_ltl_1(self):
ltl = andd(Atom("a"), Atom("b"))
tightened = tighten_ltl(ltl)
print(tightened)
if tightened is None:
self.fail()
def test_tighten_ltl_1(self):
ltl = globally(Atom("a"))
tightened = tighten_ltl(ltl)
print(tightened)
if tightened is not None:
self.fail()