def __init__(self, outer, pyname, argsast, bodyast):
BaseTranslator.__init__(self, outer)
self.function = IRCode(pyname)
program.codes.add(self.function)
self.function.module = self.currentModule()
self.pullDocstring(bodyast)
#args can be Names, Assign([Name], expr), or Tuple
with IRBlock(self.function.body):
self.function.args = []
for argast in argsast.args:
if matches(argast, ast.Name):
argname = argast.id
self.function.args.append(argname)
var = self.getTargetNamed(argname)
self.function.argvars.append(var)
elif matches(argast, ast.Assign([ast.Name], __)):
# we assume the expression was evaluated externally
argname = argast.targets[0].id
self.function.defaults.append(argname)
self.function.args.append(argname)
var = self.getTargetNamed(argname)
self.function.argvars.append(var)
elif matches(argast, ast.Tuple):
self.function.args.append(None)
argvar = IRVar()
self.function.argvars.append(argvar)
self.makeAssignment(argast, argvar)
else:
self.error("unexpected argument %s" % argast)
self.buildBlock(
self.function.body,
bodyast
)
with IRBlock(self.function.body):
Return(NoneLiteral())
self.function.docstring = self.docstring
self.function.namespace = self.namespace
self.function.globals = self.getGlobals()
self.function.locals = self.getLocals() - set(self.function.args)
def _evaluate(root, hash):
hash_observables = utils.get_observables_with_hashes(root)
for o in hash_observables:
id_ = utils.get_id(o)
props = utils.get_properties(o)
hashes = utils.get_hashes(o)
is_match = any(utils.matches(x, hash) for x in hashes)
is_singleton = len(props) == 1 # TODO: Does the object only contain a Hashes element?
is_negated = bool(o.attrib.get('negate', False))
if is_match and is_singleton:
result = RESULT_MATCH
elif is_match and not(is_singleton):
result = RESULT_PARTIAL
else:
result = RESULT_UNMATCHED
if is_negated and result == RESULT_MATCH:
result = RESULT_UNMATCHED
if is_negated and result == RESULT_UNMATCHED:
result = RESULT_MATCH
OBSERVABLE_TO_RESULT[id_] = result
def pullDocstring(s, astcode): if matches(astcode, [ast.Expr(ast.Str), ___]): s.docstring = astcode.pop(0).value.s else: s.docstring = None