def _warn_conflict(self, nonterminal, terminal, area):
"Emits a warning for a conflictive state."
msg = ''
msg += i18n.i18n('Conflictive rule for: ("%s", "%s")\n') % (
nonterminal, terminal)
msg += i18n.i18n('Will choose first production:\n')
msg += utils.indent(bnf_rule_to_str(
self._parse_table[(nonterminal, terminal)]))
self.warn(ParserException(msg, area))
def backtrace(self, msg):
def describe(ar, indent_):
loc = ar.routine.nearby_elems.get(ar.ip, self.program.tree).pos_begin.file_row()
return '%s%s %s %s' % (' ' * indent_, ar.routine.prfn, ar.routine.name, loc)
cs = self.callstack + [self.ar]
res = ''
res += msg + '\n\n'
res += i18n.i18n('At:') + '\n'
res += indent('\n'.join([
describe(x, y)
for x, y in zip(cs, range(0, len(cs)))
])) + '\n'
bindings = [(k, v) for k, v in seq_sorted(self.ar.bindings.items())
if k[0] != '_']
if len(bindings) > 0:
res += i18n.i18n('Locals:') + '\n'
res += indent('\n'.join(['%s: %s' % (k, v) for k, v in bindings]))
return res
def reraise(self, new_class, old_exception, new_msg, new_area):
if self._source_filename == self._toplevel_filename:
raise new_class(
new_msg + '\n' + utils.indent(
'%s\n%s' % (old_exception.area, old_exception.msg)
),
new_area
)
else:
raise old_exception
def parse_error(self, top, _previous_token, token):
"Raises a ParserException describing a parse error."
if is_nonterminal(top):
follow = self._followups(top)
else:
follow = [Token.type_description(top)]
if len(follow) == 1:
msg = i18n.i18n('Found: %s\nExpected: %s') % (token, follow[0])
else:
msg = ''
msg += i18n.i18n('\n'.join([
'Found: %s',
'Expected one of the following tokens:'])) % (
token,)
msg += '\n' + utils.indent('\n'.join(follow))
raise ParserException(msg, position.ProgramAreaNear(token))
def report_error(errtype, msg):
LOGGER.error('%s:\n' % (errtype,))
LOGGER.error('%s\n' % (utils.indent(msg),))