def tracemessage(self, maxlen=6):
"""
if maxlen > 0, the message is shortened to maxlen traces.
"""
result = "\nFormula traceback:\n"
for i, frame in enumerate(self):
result += "{0}: {1}".format(i, get_node_repr(frame[0]))
if frame[1]:
result += ", line %s" % frame[1]
result += "\n"
result = result.rstrip("\n")
lines = result.split("\n")
if maxlen and len(lines) > maxlen:
i = int(maxlen / 2)
lines = lines[:i] + ["..."] + lines[-(maxlen - i):]
result = "\n".join(lines)
# last formula
src = "\nFormula source:\n"
src += self[-1][0][OBJ].formula.source
result += "\n" + src
return result
def _store_value(self, key, value):
if value is not None:
self.data[key] = value
elif self.get_property("allow_none"):
self.data[key] = value
else:
raise NoneReturnedError(get_node_repr((self, key, None)))
return value
def tracemessage(self, maxlen=6):
"""
if maxlen > 0, the message is shortened to maxlen traces.
"""
result = ""
for i, value in enumerate(self):
result += "{0}: {1}\n".format(i, get_node_repr(value))
result = result.strip("\n")
lines = result.split("\n")
if maxlen and len(lines) > maxlen:
i = int(maxlen / 2)
lines = lines[:i] + ["..."] + lines[-(maxlen - i):]
result = "\n".join(lines)
return result
def find_match(self, args, kwargs):
node = get_node(self, args, kwargs)
key = node[KEY]
keylen = len(key)
if not self.get_property("allow_none"):
raise NoneReturnedError(get_node_repr(node))
for match_len in range(keylen, -1, -1):
for idxs in combinations(range(keylen), match_len):
masked = [None] * keylen
for idx in idxs:
masked[idx] = key[idx]
value = self.get_value(masked)
if value is not None:
return ArgsValuePair(tuple(masked), value)
return ArgsValuePair(None, None)
def __init__(self, node, trace_msg):
msg = self.message_template.format(get_node_repr(node), trace_msg)
ValueError.__init__(self, msg)