def _check_infinite_while_loop(self, node: AnyLoop) -> None:
if not isinstance(node, ast.While):
return
real_node = operators.unwrap_unary_node(node.test)
if isinstance(real_node, ast.NameConstant) and real_node.value is True:
if not loops.has_break(node, break_nodes=self._breaks):
self.add_violation(InfiniteWhileLoopViolation(node))
def _check_infinite_while_loop(self, node: AnyLoop) -> None:
if not isinstance(node, ast.While):
return
if loops.has_break(node, break_nodes=self._can_break_loop):
return
with suppress(ValueError):
evaled = ast.literal_eval(node.test)
if not isinstance(evaled, ast.Name) and bool(evaled):
self.add_violation(InfiniteWhileLoopViolation(node))
def _check_loop_needs_else(self, node: AnyLoop) -> None:
if node.orelse and not loops.has_break(node,
break_nodes=(ast.Break, )):
self.add_violation(UselessLoopElseViolation(node))