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playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
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playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
1,902
is_abstract
def
function
def is_abstract(method): return method.is_abstract(pass_is_abstract=_False) # check if this class abstract if class_is_abstract(node): return methods = sorted( unimplemented_abstract_methods(node, is_abstract).items(), key=lambda item: item[0], ) for name, method in methods: owner = method.parent.frame(future=_True) if owner is node: continue # owner is not this class, it must be a parent class # check that the ancestor's method is not abstract if name in node.locals: # it is redefined as an attribute or with a descriptor continue self.add_message("abstract-method", node=node, args=(name, owner.name)) def _check_init(self, node: nodes.FunctionDef, klass_node: nodes.ClassDef) -> None: """Check that the __init__ method call super or ancestors'__init__ method (unless it is used for type hinting with `typing.overload`) """ if not self.linter.is_message_enabled( "super-init-not-called" ) and not self.linter.is_message_enabled("non-parent-init-called"): return to_call = _ancestors_to_call(klass_node) not_called_yet = dict(to_call) parents_with_called_inits: Set[bases.UnboundMethod] = set() for stmt in node.nodes_of_class(nodes.Call): expr = stmt.func if not isinstance(expr, nodes.Attribute) or expr.attrname != "__init__": continue # skip the test if using super if ( isinstance(expr.expr, nodes.Call) and isinstance(expr.expr.func, nodes.Name) and expr.expr.func.name == "super" ): return try: for klass in expr.expr.infer(): if klass is astroid.Uninferable: continue # The inferred klass can be super(), which was # assigned to a variable and the `__init__` # was called later. # # base = super() # base.__init__(...) if ( isinstance(klass, astroid.Instance) and isinstance(klass._proxied, nodes.ClassDef) and is_builtin_object(klass._proxied) and klass._proxied.name == "super" ): return if isinstance(klass, astroid.objects.Super): return try: method = not_called_yet.pop(klass) # Record that the class' init has been called parents_with_called_inits.add(node_frame_class(method)) except KeyError: if klass not in to_call: self.add_message( "non-parent-init-called", node=expr, args=klass.name ) except astroid.InferenceError: continue for klass, method in not_called_yet.items(): # Check if the init of the class that defines this init has already # been called. if node_frame_class(method) in parents_with_called_inits: return # Return if klass is protocol if klass.qname() in utils.TYPING_PROTOCOLS: return # Return if any of the klass' first-order bases is protocol for base in klass.bases: # We don't need to catch InferenceError here as _ancestors_to_call # already does this for us. for inf_base in base.infer(): if inf_base.qname() in utils.TYPING_PROTOCOLS: return if decorated_with(node, ["typing.overload"]): continue cls = node_frame_class(method) if klass.name == "object" or (cls and cls.name == "object"): continue self.add_message( "super-init-not-called", args=klass.name, node=node, confidence=INFERENCE, ) def _check_signature(self, method1, refmethod, class_type, cls): """Check that the signature of the two given methods match.""" if not ( isinstance(method1, nodes.FunctionDef) and isinstance(refmethod, nodes.FunctionDef) ): self.add_message( "method-check-failed", args=(method1, refmethod), node=method1 ) return instance = cls.instantiate_class() method1 = astroid.scoped_nodes.function_to_method(method1, instance) refmethod = astroid.scoped_nodes.function_to_method(refmethod, instance) # Don't care about functions with unknown argument (builtins). if method1.args.args is None or refmethod.args.args is None: return # Ignore private to class methods. if is_attr_private(method1.name): return # Ignore setters, they have an implicit extra argument, # which shouldn't be taken in consideration. if is_property_setter(method1): return arg_differ_output = _different_parameters( refmethod, method1, dummy_parameter_regex=self._dummy_rgx ) if len(arg_differ_output) > 0: for msg in arg_differ_output: if "Number" in msg: total_args_method1 = len(method1.args.args) if method1.args.vararg: total_args_method1 += 1 if method1.args.kwarg: total_args_method1 += 1 if method1.args.kwonlyargs: total_args_method1 += len(method1.args.kwonlyargs) total_args_refmethod = len(refmethod.args.args) if refmethod.args.vararg: total_args_refmethod += 1 if refmethod.args.kwarg: total_args_refmethod += 1 if refmethod.args.kwonlyargs: total_args_refmethod += len(refmethod.args.kwonlyargs) error_type = "arguments-differ" msg_args = ( msg + f"was {total_args_refmethod} in '{refmethod.parent.frame().name}.{refmethod.name}' and " f"is now {total_args_method1} in", class_type, f"{method1.parent.frame().name}.{method1.name}", ) elif "renamed" in msg: error_type = "arguments-renamed" msg_args = ( msg, class_type, f"{method1.parent.frame().name}.{method1.name}", ) else: error_type = "arguments-differ" msg_args = ( msg, class_type, f"{method1.parent.frame().name}.{method1.name}", ) self.add_message(error_type, args=msg_args, node=method1) elif ( len(method1.args.defaults) < len(refmethod.args.defaults) and not method1.args.vararg ): self.add_message( "signature-differs", args=(class_type, method1.name), node=method1 ) def _uses_mandatory_method_param(self, node): """Check that attribute lookup name use first attribute variable name. Name is `self` for method, `cls` for classmethod and `mcs` for metaclass. """ return self._is_mandatory_method_param(node.expr) def _is_mandatory_method_param(self, node: nodes.NodeNG) -> bool: """Check if nodes.Name corresponds to first attribute variable name. Name is `self` for method, `cls` for classmethod and `mcs` for metaclass. """ if self._first_attrs: first_attr = self._first_attrs[-1] else: # It's possible the function was already unregistered. closest_func = utils.get_node_first_ancestor_of_type( node, nodes.FunctionDef ) if closest_func is None: return _False if not closest_func.args.args: return _False first_attr = closest_func.args.args[0].name return isinstance(node, nodes.Name) and node.name == first_attr
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
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is_abstract
ref
function
return method.is_abstract(pass_is_abstract=False)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
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unimplemented_abstract_methods(node, is_abstract).items(),
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
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owner = method.parent.frame(future=True)
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pylint/checkers/classes/class_checker.py
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add_message
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self.add_message("abstract-method", node=node, args=(name, owner.name))
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
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def _check_init(self, node: nodes.FunctionDef, klass_node: nodes.ClassDef) -> None: """Check that the __init__ method call super or ancestors'__init__ method (unless it is used for type hinting with `typing.overload`) """ if not self.linter.is_message_enabled( "super-init-not-called" ) and not self.linter.is_message_enabled("non-parent-init-called"): return to_call = _ancestors_to_call(klass_node) not_called_yet = dict(to_call) parents_with_called_inits: Set[bases.UnboundMethod] = set() for stmt in node.nodes_of_class(nodes.Call): expr = stmt.func if not isinstance(expr, nodes.Attribute) or expr.attrname != "__init__": continue # skip the test if using super if ( isinstance(expr.expr, nodes.Call) and isinstance(expr.expr.func, nodes.Name) and expr.expr.func.name == "super" ): return try: for klass in expr.expr.infer(): if klass is astroid.Uninferable: continue # The inferred klass can be super(), which was # assigned to a variable and the `__init__` # was called later. # # base = super() # base.__init__(...) if ( isinstance(klass, astroid.Instance) and isinstance(klass._proxied, nodes.ClassDef) and is_builtin_object(klass._proxied) and klass._proxied.name == "super" ): return if isinstance(klass, astroid.objects.Super): return try: method = not_called_yet.pop(klass) # Record that the class' init has been called parents_with_called_inits.add(node_frame_class(method)) except KeyError: if klass not in to_call: self.add_message( "non-parent-init-called", node=expr, args=klass.name ) except astroid.InferenceError: continue for klass, method in not_called_yet.items(): # Check if the init of the class that defines this init has already # been called. if node_frame_class(method) in parents_with_called_inits: return # Return if klass is protocol if klass.qname() in utils.TYPING_PROTOCOLS: return # Return if any of the klass' first-order bases is protocol for base in klass.bases: # We don't need to catch InferenceError here as _ancestors_to_call # already does this for us. for inf_base in base.infer(): if inf_base.qname() in utils.TYPING_PROTOCOLS: return if decorated_with(node, ["typing.overload"]): continue cls = node_frame_class(method) if klass.name == "object" or (cls and cls.name == "object"): continue self.add_message( "super-init-not-called", args=klass.name, node=node, confidence=INFERENCE, ) def _check_signature(self, method1, refmethod, class_type, cls): """Check that the signature of the two given methods match.""" if not ( isinstance(method1, nodes.FunctionDef) and isinstance(refmethod, nodes.FunctionDef) ): self.add_message( "method-check-failed", args=(method1, refmethod), node=method1 ) return instance = cls.instantiate_class() method1 = astroid.scoped_nodes.function_to_method(method1, instance) refmethod = astroid.scoped_nodes.function_to_method(refmethod, instance) # Don't care about functions with unknown argument (builtins). if method1.args.args is None or refmethod.args.args is None: return # Ignore private to class methods. if is_attr_private(method1.name): return # Ignore setters, they have an implicit extra argument, # which shouldn't be taken in consideration. if is_property_setter(method1): return arg_differ_output = _different_parameters( refmethod, method1, dummy_parameter_regex=self._dummy_rgx ) if len(arg_differ_output) > 0: for msg in arg_differ_output: if "Number" in msg: total_args_method1 = len(method1.args.args) if method1.args.vararg: total_args_method1 += 1 if method1.args.kwarg: total_args_method1 += 1 if method1.args.kwonlyargs: total_args_method1 += len(method1.args.kwonlyargs) total_args_refmethod = len(refmethod.args.args) if refmethod.args.vararg: total_args_refmethod += 1 if refmethod.args.kwarg: total_args_refmethod += 1 if refmethod.args.kwonlyargs: total_args_refmethod += len(refmethod.args.kwonlyargs) error_type = "arguments-differ" msg_args = ( msg + f"was {total_args_refmethod} in '{refmethod.parent.frame().name}.{refmethod.name}' and " f"is now {total_args_method1} in", class_type, f"{method1.parent.frame().name}.{method1.name}", ) elif "renamed" in msg: error_type = "arguments-renamed" msg_args = ( msg, class_type, f"{method1.parent.frame().name}.{method1.name}", ) else: error_type = "arguments-differ" msg_args = ( msg, class_type, f"{method1.parent.frame().name}.{method1.name}", ) self.add_message(error_type, args=msg_args, node=method1) elif ( len(method1.args.defaults) < len(refmethod.args.defaults) and not method1.args.vararg ): self.add_message( "signature-differs", args=(class_type, method1.name), node=method1 ) def _uses_mandatory_method_param(self, node): """Check that attribute lookup name use first attribute variable name. Name is `self` for method, `cls` for classmethod and `mcs` for metaclass. """ return self._is_mandatory_method_param(node.expr) def _is_mandatory_method_param(self, node: nodes.NodeNG) -> bool: """Check if nodes.Name corresponds to first attribute variable name. Name is `self` for method, `cls` for classmethod and `mcs` for metaclass. """ if self._first_attrs: first_attr = self._first_attrs[-1] else: # It's possible the function was already unregistered. closest_func = utils.get_node_first_ancestor_of_type( node, nodes.FunctionDef ) if closest_func is None: return _False if not closest_func.args.args: return _False first_attr = closest_func.args.args[0].name return isinstance(node, nodes.Name) and node.name == first_attr
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
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is_message_enabled
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function
if not self.linter.is_message_enabled(
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
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is_message_enabled
ref
function
) and not self.linter.is_message_enabled("non-parent-init-called"):
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
1,932
_ancestors_to_call
ref
function
to_call = _ancestors_to_call(klass_node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
1,935
nodes_of_class
ref
class
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
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infer
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function
for klass in expr.expr.infer():
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
1,960
is_builtin_object
ref
function
and is_builtin_object(klass._proxied)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
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node_frame_class
ref
class
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
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add_message
ref
function
self.add_message(
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
1,980
node_frame_class
ref
class
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
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qname
ref
function
if klass.qname() in utils.TYPING_PROTOCOLS:
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
1,991
infer
ref
function
for inf_base in base.infer():
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
1,992
qname
ref
function
if inf_base.qname() in utils.TYPING_PROTOCOLS:
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
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decorated_with
ref
function
if decorated_with(node, ["typing.overload"]):
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
1,997
node_frame_class
ref
class
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
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add_message
ref
function
self.add_message(
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
2,007
_check_signature
def
class
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
2,013
add_message
ref
function
self.add_message(
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
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instantiate_class
ref
class
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
2,019
function_to_method
ref
function
method1 = astroid.scoped_nodes.function_to_method(method1, instance)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
2,020
function_to_method
ref
function
refmethod = astroid.scoped_nodes.function_to_method(refmethod, instance)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
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is_attr_private
ref
function
if is_attr_private(method1.name):
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
2,031
is_property_setter
ref
function
if is_property_setter(method1):
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
2,034
_different_parameters
ref
function
arg_differ_output = _different_parameters(
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
2,057
frame
ref
function
+ f"was {total_args_refmethod} in '{refmethod.parent.frame().name}.{refmethod.name}' and "
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
2,060
frame
ref
function
f"{method1.parent.frame().name}.{method1.name}",
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
2,067
frame
ref
function
f"{method1.parent.frame().name}.{method1.name}",
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
2,074
frame
ref
function
f"{method1.parent.frame().name}.{method1.name}",
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
2,076
add_message
ref
function
self.add_message(error_type, args=msg_args, node=method1)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
2,081
add_message
ref
function
self.add_message(
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
2,085
_uses_mandatory_method_param
def
function
def _uses_mandatory_method_param(self, node): """Check that attribute lookup name use first attribute variable name. Name is `self` for method, `cls` for classmethod and `mcs` for metaclass. """ return self._is_mandatory_method_param(node.expr) def _is_mandatory_method_param(self, node: nodes.NodeNG) -> bool: """Check if nodes.Name corresponds to first attribute variable name. Name is `self` for method, `cls` for classmethod and `mcs` for metaclass. """ if self._first_attrs: first_attr = self._first_attrs[-1] else: # It's possible the function was already unregistered. closest_func = utils.get_node_first_ancestor_of_type( node, nodes.FunctionDef ) if closest_func is None: return _False if not closest_func.args.args: return _False first_attr = closest_func.args.args[0].name return isinstance(node, nodes.Name) and node.name == first_attr
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
2,090
_is_mandatory_method_param
ref
function
return self._is_mandatory_method_param(node.expr)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
2,092
_is_mandatory_method_param
def
function
def _is_mandatory_method_param(self, node: nodes.NodeNG) -> bool: """Check if nodes.Name corresponds to first attribute variable name. Name is `self` for method, `cls` for classmethod and `mcs` for metaclass. """ if self._first_attrs: first_attr = self._first_attrs[-1] else: # It's possible the function was already unregistered. closest_func = utils.get_node_first_ancestor_of_type( node, nodes.FunctionDef ) if closest_func is None: return _False if not closest_func.args.args: return _False first_attr = closest_func.args.args[0].name return isinstance(node, nodes.Name) and node.name == first_attr
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
2,101
get_node_first_ancestor_of_type
ref
function
closest_func = utils.get_node_first_ancestor_of_type(
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
2,112
_ancestors_to_call
def
function
def _ancestors_to_call( klass_node: nodes.ClassDef, method="__init__"
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
2,119
ancestors
ref
function
for base_node in klass_node.ancestors(recurs=False):
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/class_checker.py
pylint/checkers/classes/class_checker.py
2,121
igetattr
ref
function
to_call[base_node] = next(base_node.igetattr(method))
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
22
_safe_infer_call_result
def
function
def _safe_infer_call_result(node, caller, context=None): """Safely infer the return value of a function. Returns None if inference failed or if there is some ambiguity (more than one node has been inferred). Otherwise, returns inferred value. """ try: inferit = node.infer_call_result(caller, context=context) value = next(inferit) except astroid.InferenceError: return None # inference failed except StopIteration: return None # no values inferred try: next(inferit) return None # there is ambiguity on the inferred node except astroid.InferenceError: return None # there is some kind of ambiguity except StopIteration: return value
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
29
infer_call_result
ref
function
inferit = node.infer_call_result(caller, context=context)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
44
SpecialMethodsChecker
def
class
__init__ visit_functiondef _check_unexpected_method_signature _is_wrapped_type _is_int _is_str _is_bool _is_bytes _is_tuple _is_dict _is_iterator _check_iter _check_len _check_bool _check_index _check_repr _check_str _check_bytes _check_hash _check_length_hint _check_format _check_getnewargs _check_getnewargs_ex
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
152
check_messages
ref
function
@check_messages(
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
167
visit_functiondef
def
function
def visit_functiondef(self, node: nodes.FunctionDef) -> None: if not node.is_method(): return inferred = _safe_infer_call_result(node, node) # Only want to check types that we are able to infer if ( inferred and node.name in self._protocol_map and not is_function_body_ellipsis(node) ): self._protocol_map[node.name](node, inferred) if node.name in PYMETHODS: self._check_unexpected_method_signature(node) visit_asyncfunctiondef = visit_functiondef def _check_unexpected_method_signature(self, node): expected_params = SPECIAL_METHODS_PARAMS[node.name] if expected_params is None: # This can support a variable number of parameters. return if not node.args.args and not node.args.vararg: # Method has no parameter, will be caught # by no-method-argument. return if decorated_with(node, ["builtins.staticmethod"]): # We expect to not take in consideration self. all_args = node.args.args else: all_args = node.args.args[1:] mandatory = len(all_args) - len(node.args.defaults) optional = len(node.args.defaults) current_params = mandatory + optional if isinstance(expected_params, tuple): # The expected number of parameters can be any value from this # tuple, although the user should implement the method # to take all of them in consideration. emit = mandatory not in expected_params # pylint: disable-next=consider-using-f-string expected_params = "between %d or %d" % expected_params else: # If the number of mandatory parameters doesn't # suffice, the expected parameters for this # function will be deduced from the optional # parameters. rest = expected_params - mandatory if rest == 0: emit = _False elif rest < 0: emit = _True elif rest > 0: emit = not ((optional - rest) >= 0 or node.args.vararg) if emit: verb = "was" if current_params <= 1 else "were" self.add_message( "unexpected-special-method-signature", args=(node.name, expected_params, current_params, verb), node=node, ) @staticmethod def _is_wrapped_type(node, type_): return ( isinstance(node, astroid.Instance) and node.name == type_ and not isinstance(node, nodes.Const) ) @staticmethod def _is_int(node): if SpecialMethodsChecker._is_wrapped_type(node, "int"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, int) @staticmethod def _is_str(node): if SpecialMethodsChecker._is_wrapped_type(node, "str"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, str) @staticmethod def _is_bool(node): if SpecialMethodsChecker._is_wrapped_type(node, "bool"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, bool) @staticmethod def _is_bytes(node): if SpecialMethodsChecker._is_wrapped_type(node, "bytes"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, bytes) @staticmethod def _is_tuple(node): if SpecialMethodsChecker._is_wrapped_type(node, "tuple"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, tuple) @staticmethod def _is_dict(node): if SpecialMethodsChecker._is_wrapped_type(node, "dict"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, dict) @staticmethod def _is_iterator(node): if node is astroid.Uninferable: # Just ignore Uninferable objects. return _True if isinstance(node, astroid.bases.Generator): # Generators can be iterated. return _True if isinstance(node, astroid.Instance): try: node.local_attr(NEXT_METHOD) return _True except astroid.NotFoundError: pass elif isinstance(node, nodes.ClassDef): metaclass = node.metaclass() if metaclass and isinstance(metaclass, nodes.ClassDef): try: metaclass.local_attr(NEXT_METHOD) return _True except astroid.NotFoundError: pass return _False def _check_iter(self, node, inferred): if not self._is_iterator(inferred): self.add_message("non-iterator-returned", node=node) def _check_len(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-returned", node=node) def _check_bool(self, node, inferred): if not self._is_bool(inferred): self.add_message("invalid-bool-returned", node=node) def _check_index(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-index-returned", node=node) def _check_repr(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-repr-returned", node=node) def _check_str(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-str-returned", node=node) def _check_bytes(self, node, inferred): if not self._is_bytes(inferred): self.add_message("invalid-bytes-returned", node=node) def _check_hash(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-hash-returned", node=node) def _check_length_hint(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-hint-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-hint-returned", node=node) def _check_format(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-format-returned", node=node) def _check_getnewargs(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-returned", node=node) def _check_getnewargs_ex(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-ex-returned", node=node) return if not isinstance(inferred, nodes.Tuple): # If it's not an astroid.Tuple we can't analyze it further return found_error = _False if len(inferred.elts) != 2: found_error = _True else: for arg, check in ( (inferred.elts[0], self._is_tuple), (inferred.elts[1], self._is_dict), ): if isinstance(arg, nodes.Call): arg = safe_infer(arg) if arg and arg is not astroid.Uninferable: if not check(arg): found_error = _True break if found_error: self.add_message("invalid-getnewargs-ex-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
168
is_method
ref
function
if not node.is_method():
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
171
_safe_infer_call_result
ref
function
inferred = _safe_infer_call_result(node, node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
176
is_function_body_ellipsis
ref
function
and not is_function_body_ellipsis(node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
181
_check_unexpected_method_signature
ref
function
self._check_unexpected_method_signature(node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
185
_check_unexpected_method_signature
def
function
def _check_unexpected_method_signature(self, node): expected_params = SPECIAL_METHODS_PARAMS[node.name] if expected_params is None: # This can support a variable number of parameters. return if not node.args.args and not node.args.vararg: # Method has no parameter, will be caught # by no-method-argument. return if decorated_with(node, ["builtins.staticmethod"]): # We expect to not take in consideration self. all_args = node.args.args else: all_args = node.args.args[1:] mandatory = len(all_args) - len(node.args.defaults) optional = len(node.args.defaults) current_params = mandatory + optional if isinstance(expected_params, tuple): # The expected number of parameters can be any value from this # tuple, although the user should implement the method # to take all of them in consideration. emit = mandatory not in expected_params # pylint: disable-next=consider-using-f-string expected_params = "between %d or %d" % expected_params else: # If the number of mandatory parameters doesn't # suffice, the expected parameters for this # function will be deduced from the optional # parameters. rest = expected_params - mandatory if rest == 0: emit = _False elif rest < 0: emit = _True elif rest > 0: emit = not ((optional - rest) >= 0 or node.args.vararg) if emit: verb = "was" if current_params <= 1 else "were" self.add_message( "unexpected-special-method-signature", args=(node.name, expected_params, current_params, verb), node=node, ) @staticmethod def _is_wrapped_type(node, type_): return ( isinstance(node, astroid.Instance) and node.name == type_ and not isinstance(node, nodes.Const) ) @staticmethod def _is_int(node): if SpecialMethodsChecker._is_wrapped_type(node, "int"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, int) @staticmethod def _is_str(node): if SpecialMethodsChecker._is_wrapped_type(node, "str"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, str) @staticmethod def _is_bool(node): if SpecialMethodsChecker._is_wrapped_type(node, "bool"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, bool) @staticmethod def _is_bytes(node): if SpecialMethodsChecker._is_wrapped_type(node, "bytes"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, bytes) @staticmethod def _is_tuple(node): if SpecialMethodsChecker._is_wrapped_type(node, "tuple"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, tuple) @staticmethod def _is_dict(node): if SpecialMethodsChecker._is_wrapped_type(node, "dict"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, dict) @staticmethod def _is_iterator(node): if node is astroid.Uninferable: # Just ignore Uninferable objects. return _True if isinstance(node, astroid.bases.Generator): # Generators can be iterated. return _True if isinstance(node, astroid.Instance): try: node.local_attr(NEXT_METHOD) return _True except astroid.NotFoundError: pass elif isinstance(node, nodes.ClassDef): metaclass = node.metaclass() if metaclass and isinstance(metaclass, nodes.ClassDef): try: metaclass.local_attr(NEXT_METHOD) return _True except astroid.NotFoundError: pass return _False def _check_iter(self, node, inferred): if not self._is_iterator(inferred): self.add_message("non-iterator-returned", node=node) def _check_len(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-returned", node=node) def _check_bool(self, node, inferred): if not self._is_bool(inferred): self.add_message("invalid-bool-returned", node=node) def _check_index(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-index-returned", node=node) def _check_repr(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-repr-returned", node=node) def _check_str(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-str-returned", node=node) def _check_bytes(self, node, inferred): if not self._is_bytes(inferred): self.add_message("invalid-bytes-returned", node=node) def _check_hash(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-hash-returned", node=node) def _check_length_hint(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-hint-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-hint-returned", node=node) def _check_format(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-format-returned", node=node) def _check_getnewargs(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-returned", node=node) def _check_getnewargs_ex(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-ex-returned", node=node) return if not isinstance(inferred, nodes.Tuple): # If it's not an astroid.Tuple we can't analyze it further return found_error = _False if len(inferred.elts) != 2: found_error = _True else: for arg, check in ( (inferred.elts[0], self._is_tuple), (inferred.elts[1], self._is_dict), ): if isinstance(arg, nodes.Call): arg = safe_infer(arg) if arg and arg is not astroid.Uninferable: if not check(arg): found_error = _True break if found_error: self.add_message("invalid-getnewargs-ex-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
196
decorated_with
ref
function
if decorated_with(node, ["builtins.staticmethod"]):
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
227
add_message
ref
function
self.add_message(
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
234
_is_wrapped_type
def
function
def _is_wrapped_type(node, type_): return ( isinstance(node, astroid.Instance) and node.name == type_ and not isinstance(node, nodes.Const) ) @staticmethod def _is_int(node): if SpecialMethodsChecker._is_wrapped_type(node, "int"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, int) @staticmethod def _is_str(node): if SpecialMethodsChecker._is_wrapped_type(node, "str"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, str) @staticmethod def _is_bool(node): if SpecialMethodsChecker._is_wrapped_type(node, "bool"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, bool) @staticmethod def _is_bytes(node): if SpecialMethodsChecker._is_wrapped_type(node, "bytes"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, bytes) @staticmethod def _is_tuple(node): if SpecialMethodsChecker._is_wrapped_type(node, "tuple"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, tuple) @staticmethod def _is_dict(node): if SpecialMethodsChecker._is_wrapped_type(node, "dict"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, dict) @staticmethod def _is_iterator(node): if node is astroid.Uninferable: # Just ignore Uninferable objects. return _True if isinstance(node, astroid.bases.Generator): # Generators can be iterated. return _True if isinstance(node, astroid.Instance): try: node.local_attr(NEXT_METHOD) return _True except astroid.NotFoundError: pass elif isinstance(node, nodes.ClassDef): metaclass = node.metaclass() if metaclass and isinstance(metaclass, nodes.ClassDef): try: metaclass.local_attr(NEXT_METHOD) return _True except astroid.NotFoundError: pass return _False def _check_iter(self, node, inferred): if not self._is_iterator(inferred): self.add_message("non-iterator-returned", node=node) def _check_len(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-returned", node=node) def _check_bool(self, node, inferred): if not self._is_bool(inferred): self.add_message("invalid-bool-returned", node=node) def _check_index(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-index-returned", node=node) def _check_repr(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-repr-returned", node=node) def _check_str(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-str-returned", node=node) def _check_bytes(self, node, inferred): if not self._is_bytes(inferred): self.add_message("invalid-bytes-returned", node=node) def _check_hash(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-hash-returned", node=node) def _check_length_hint(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-hint-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-hint-returned", node=node) def _check_format(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-format-returned", node=node) def _check_getnewargs(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-returned", node=node) def _check_getnewargs_ex(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-ex-returned", node=node) return if not isinstance(inferred, nodes.Tuple): # If it's not an astroid.Tuple we can't analyze it further return found_error = _False if len(inferred.elts) != 2: found_error = _True else: for arg, check in ( (inferred.elts[0], self._is_tuple), (inferred.elts[1], self._is_dict), ): if isinstance(arg, nodes.Call): arg = safe_infer(arg) if arg and arg is not astroid.Uninferable: if not check(arg): found_error = _True break if found_error: self.add_message("invalid-getnewargs-ex-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
242
_is_int
def
function
def _is_int(node): if SpecialMethodsChecker._is_wrapped_type(node, "int"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, int) @staticmethod def _is_str(node): if SpecialMethodsChecker._is_wrapped_type(node, "str"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, str) @staticmethod def _is_bool(node): if SpecialMethodsChecker._is_wrapped_type(node, "bool"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, bool) @staticmethod def _is_bytes(node): if SpecialMethodsChecker._is_wrapped_type(node, "bytes"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, bytes) @staticmethod def _is_tuple(node): if SpecialMethodsChecker._is_wrapped_type(node, "tuple"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, tuple) @staticmethod def _is_dict(node): if SpecialMethodsChecker._is_wrapped_type(node, "dict"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, dict) @staticmethod def _is_iterator(node): if node is astroid.Uninferable: # Just ignore Uninferable objects. return _True if isinstance(node, astroid.bases.Generator): # Generators can be iterated. return _True if isinstance(node, astroid.Instance): try: node.local_attr(NEXT_METHOD) return _True except astroid.NotFoundError: pass elif isinstance(node, nodes.ClassDef): metaclass = node.metaclass() if metaclass and isinstance(metaclass, nodes.ClassDef): try: metaclass.local_attr(NEXT_METHOD) return _True except astroid.NotFoundError: pass return _False def _check_iter(self, node, inferred): if not self._is_iterator(inferred): self.add_message("non-iterator-returned", node=node) def _check_len(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-returned", node=node) def _check_bool(self, node, inferred): if not self._is_bool(inferred): self.add_message("invalid-bool-returned", node=node) def _check_index(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-index-returned", node=node) def _check_repr(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-repr-returned", node=node) def _check_str(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-str-returned", node=node) def _check_bytes(self, node, inferred): if not self._is_bytes(inferred): self.add_message("invalid-bytes-returned", node=node) def _check_hash(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-hash-returned", node=node) def _check_length_hint(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-hint-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-hint-returned", node=node) def _check_format(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-format-returned", node=node) def _check_getnewargs(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-returned", node=node) def _check_getnewargs_ex(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-ex-returned", node=node) return if not isinstance(inferred, nodes.Tuple): # If it's not an astroid.Tuple we can't analyze it further return found_error = _False if len(inferred.elts) != 2: found_error = _True else: for arg, check in ( (inferred.elts[0], self._is_tuple), (inferred.elts[1], self._is_dict), ): if isinstance(arg, nodes.Call): arg = safe_infer(arg) if arg and arg is not astroid.Uninferable: if not check(arg): found_error = _True break if found_error: self.add_message("invalid-getnewargs-ex-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
243
_is_wrapped_type
ref
function
if SpecialMethodsChecker._is_wrapped_type(node, "int"):
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
249
_is_str
def
function
def _is_str(node): if SpecialMethodsChecker._is_wrapped_type(node, "str"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, str) @staticmethod def _is_bool(node): if SpecialMethodsChecker._is_wrapped_type(node, "bool"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, bool) @staticmethod def _is_bytes(node): if SpecialMethodsChecker._is_wrapped_type(node, "bytes"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, bytes) @staticmethod def _is_tuple(node): if SpecialMethodsChecker._is_wrapped_type(node, "tuple"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, tuple) @staticmethod def _is_dict(node): if SpecialMethodsChecker._is_wrapped_type(node, "dict"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, dict) @staticmethod def _is_iterator(node): if node is astroid.Uninferable: # Just ignore Uninferable objects. return _True if isinstance(node, astroid.bases.Generator): # Generators can be iterated. return _True if isinstance(node, astroid.Instance): try: node.local_attr(NEXT_METHOD) return _True except astroid.NotFoundError: pass elif isinstance(node, nodes.ClassDef): metaclass = node.metaclass() if metaclass and isinstance(metaclass, nodes.ClassDef): try: metaclass.local_attr(NEXT_METHOD) return _True except astroid.NotFoundError: pass return _False def _check_iter(self, node, inferred): if not self._is_iterator(inferred): self.add_message("non-iterator-returned", node=node) def _check_len(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-returned", node=node) def _check_bool(self, node, inferred): if not self._is_bool(inferred): self.add_message("invalid-bool-returned", node=node) def _check_index(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-index-returned", node=node) def _check_repr(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-repr-returned", node=node) def _check_str(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-str-returned", node=node) def _check_bytes(self, node, inferred): if not self._is_bytes(inferred): self.add_message("invalid-bytes-returned", node=node) def _check_hash(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-hash-returned", node=node) def _check_length_hint(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-hint-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-hint-returned", node=node) def _check_format(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-format-returned", node=node) def _check_getnewargs(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-returned", node=node) def _check_getnewargs_ex(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-ex-returned", node=node) return if not isinstance(inferred, nodes.Tuple): # If it's not an astroid.Tuple we can't analyze it further return found_error = _False if len(inferred.elts) != 2: found_error = _True else: for arg, check in ( (inferred.elts[0], self._is_tuple), (inferred.elts[1], self._is_dict), ): if isinstance(arg, nodes.Call): arg = safe_infer(arg) if arg and arg is not astroid.Uninferable: if not check(arg): found_error = _True break if found_error: self.add_message("invalid-getnewargs-ex-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
250
_is_wrapped_type
ref
function
if SpecialMethodsChecker._is_wrapped_type(node, "str"):
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
256
_is_bool
def
function
def _is_bool(node): if SpecialMethodsChecker._is_wrapped_type(node, "bool"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, bool) @staticmethod def _is_bytes(node): if SpecialMethodsChecker._is_wrapped_type(node, "bytes"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, bytes) @staticmethod def _is_tuple(node): if SpecialMethodsChecker._is_wrapped_type(node, "tuple"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, tuple) @staticmethod def _is_dict(node): if SpecialMethodsChecker._is_wrapped_type(node, "dict"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, dict) @staticmethod def _is_iterator(node): if node is astroid.Uninferable: # Just ignore Uninferable objects. return _True if isinstance(node, astroid.bases.Generator): # Generators can be iterated. return _True if isinstance(node, astroid.Instance): try: node.local_attr(NEXT_METHOD) return _True except astroid.NotFoundError: pass elif isinstance(node, nodes.ClassDef): metaclass = node.metaclass() if metaclass and isinstance(metaclass, nodes.ClassDef): try: metaclass.local_attr(NEXT_METHOD) return _True except astroid.NotFoundError: pass return _False def _check_iter(self, node, inferred): if not self._is_iterator(inferred): self.add_message("non-iterator-returned", node=node) def _check_len(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-returned", node=node) def _check_bool(self, node, inferred): if not self._is_bool(inferred): self.add_message("invalid-bool-returned", node=node) def _check_index(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-index-returned", node=node) def _check_repr(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-repr-returned", node=node) def _check_str(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-str-returned", node=node) def _check_bytes(self, node, inferred): if not self._is_bytes(inferred): self.add_message("invalid-bytes-returned", node=node) def _check_hash(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-hash-returned", node=node) def _check_length_hint(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-hint-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-hint-returned", node=node) def _check_format(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-format-returned", node=node) def _check_getnewargs(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-returned", node=node) def _check_getnewargs_ex(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-ex-returned", node=node) return if not isinstance(inferred, nodes.Tuple): # If it's not an astroid.Tuple we can't analyze it further return found_error = _False if len(inferred.elts) != 2: found_error = _True else: for arg, check in ( (inferred.elts[0], self._is_tuple), (inferred.elts[1], self._is_dict), ): if isinstance(arg, nodes.Call): arg = safe_infer(arg) if arg and arg is not astroid.Uninferable: if not check(arg): found_error = _True break if found_error: self.add_message("invalid-getnewargs-ex-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
257
_is_wrapped_type
ref
function
if SpecialMethodsChecker._is_wrapped_type(node, "bool"):
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
263
_is_bytes
def
function
def _is_bytes(node): if SpecialMethodsChecker._is_wrapped_type(node, "bytes"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, bytes) @staticmethod def _is_tuple(node): if SpecialMethodsChecker._is_wrapped_type(node, "tuple"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, tuple) @staticmethod def _is_dict(node): if SpecialMethodsChecker._is_wrapped_type(node, "dict"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, dict) @staticmethod def _is_iterator(node): if node is astroid.Uninferable: # Just ignore Uninferable objects. return _True if isinstance(node, astroid.bases.Generator): # Generators can be iterated. return _True if isinstance(node, astroid.Instance): try: node.local_attr(NEXT_METHOD) return _True except astroid.NotFoundError: pass elif isinstance(node, nodes.ClassDef): metaclass = node.metaclass() if metaclass and isinstance(metaclass, nodes.ClassDef): try: metaclass.local_attr(NEXT_METHOD) return _True except astroid.NotFoundError: pass return _False def _check_iter(self, node, inferred): if not self._is_iterator(inferred): self.add_message("non-iterator-returned", node=node) def _check_len(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-returned", node=node) def _check_bool(self, node, inferred): if not self._is_bool(inferred): self.add_message("invalid-bool-returned", node=node) def _check_index(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-index-returned", node=node) def _check_repr(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-repr-returned", node=node) def _check_str(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-str-returned", node=node) def _check_bytes(self, node, inferred): if not self._is_bytes(inferred): self.add_message("invalid-bytes-returned", node=node) def _check_hash(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-hash-returned", node=node) def _check_length_hint(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-hint-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-hint-returned", node=node) def _check_format(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-format-returned", node=node) def _check_getnewargs(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-returned", node=node) def _check_getnewargs_ex(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-ex-returned", node=node) return if not isinstance(inferred, nodes.Tuple): # If it's not an astroid.Tuple we can't analyze it further return found_error = _False if len(inferred.elts) != 2: found_error = _True else: for arg, check in ( (inferred.elts[0], self._is_tuple), (inferred.elts[1], self._is_dict), ): if isinstance(arg, nodes.Call): arg = safe_infer(arg) if arg and arg is not astroid.Uninferable: if not check(arg): found_error = _True break if found_error: self.add_message("invalid-getnewargs-ex-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
264
_is_wrapped_type
ref
function
if SpecialMethodsChecker._is_wrapped_type(node, "bytes"):
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
270
_is_tuple
def
function
def _is_tuple(node): if SpecialMethodsChecker._is_wrapped_type(node, "tuple"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, tuple) @staticmethod def _is_dict(node): if SpecialMethodsChecker._is_wrapped_type(node, "dict"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, dict) @staticmethod def _is_iterator(node): if node is astroid.Uninferable: # Just ignore Uninferable objects. return _True if isinstance(node, astroid.bases.Generator): # Generators can be iterated. return _True if isinstance(node, astroid.Instance): try: node.local_attr(NEXT_METHOD) return _True except astroid.NotFoundError: pass elif isinstance(node, nodes.ClassDef): metaclass = node.metaclass() if metaclass and isinstance(metaclass, nodes.ClassDef): try: metaclass.local_attr(NEXT_METHOD) return _True except astroid.NotFoundError: pass return _False def _check_iter(self, node, inferred): if not self._is_iterator(inferred): self.add_message("non-iterator-returned", node=node) def _check_len(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-returned", node=node) def _check_bool(self, node, inferred): if not self._is_bool(inferred): self.add_message("invalid-bool-returned", node=node) def _check_index(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-index-returned", node=node) def _check_repr(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-repr-returned", node=node) def _check_str(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-str-returned", node=node) def _check_bytes(self, node, inferred): if not self._is_bytes(inferred): self.add_message("invalid-bytes-returned", node=node) def _check_hash(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-hash-returned", node=node) def _check_length_hint(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-hint-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-hint-returned", node=node) def _check_format(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-format-returned", node=node) def _check_getnewargs(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-returned", node=node) def _check_getnewargs_ex(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-ex-returned", node=node) return if not isinstance(inferred, nodes.Tuple): # If it's not an astroid.Tuple we can't analyze it further return found_error = _False if len(inferred.elts) != 2: found_error = _True else: for arg, check in ( (inferred.elts[0], self._is_tuple), (inferred.elts[1], self._is_dict), ): if isinstance(arg, nodes.Call): arg = safe_infer(arg) if arg and arg is not astroid.Uninferable: if not check(arg): found_error = _True break if found_error: self.add_message("invalid-getnewargs-ex-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
271
_is_wrapped_type
ref
function
if SpecialMethodsChecker._is_wrapped_type(node, "tuple"):
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
277
_is_dict
def
function
def _is_dict(node): if SpecialMethodsChecker._is_wrapped_type(node, "dict"): return _True return isinstance(node, nodes.Const) and isinstance(node.value, dict) @staticmethod def _is_iterator(node): if node is astroid.Uninferable: # Just ignore Uninferable objects. return _True if isinstance(node, astroid.bases.Generator): # Generators can be iterated. return _True if isinstance(node, astroid.Instance): try: node.local_attr(NEXT_METHOD) return _True except astroid.NotFoundError: pass elif isinstance(node, nodes.ClassDef): metaclass = node.metaclass() if metaclass and isinstance(metaclass, nodes.ClassDef): try: metaclass.local_attr(NEXT_METHOD) return _True except astroid.NotFoundError: pass return _False def _check_iter(self, node, inferred): if not self._is_iterator(inferred): self.add_message("non-iterator-returned", node=node) def _check_len(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-returned", node=node) def _check_bool(self, node, inferred): if not self._is_bool(inferred): self.add_message("invalid-bool-returned", node=node) def _check_index(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-index-returned", node=node) def _check_repr(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-repr-returned", node=node) def _check_str(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-str-returned", node=node) def _check_bytes(self, node, inferred): if not self._is_bytes(inferred): self.add_message("invalid-bytes-returned", node=node) def _check_hash(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-hash-returned", node=node) def _check_length_hint(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-hint-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-hint-returned", node=node) def _check_format(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-format-returned", node=node) def _check_getnewargs(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-returned", node=node) def _check_getnewargs_ex(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-ex-returned", node=node) return if not isinstance(inferred, nodes.Tuple): # If it's not an astroid.Tuple we can't analyze it further return found_error = _False if len(inferred.elts) != 2: found_error = _True else: for arg, check in ( (inferred.elts[0], self._is_tuple), (inferred.elts[1], self._is_dict), ): if isinstance(arg, nodes.Call): arg = safe_infer(arg) if arg and arg is not astroid.Uninferable: if not check(arg): found_error = _True break if found_error: self.add_message("invalid-getnewargs-ex-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
278
_is_wrapped_type
ref
function
if SpecialMethodsChecker._is_wrapped_type(node, "dict"):
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
284
_is_iterator
def
function
def _is_iterator(node): if node is astroid.Uninferable: # Just ignore Uninferable objects. return _True if isinstance(node, astroid.bases.Generator): # Generators can be iterated. return _True if isinstance(node, astroid.Instance): try: node.local_attr(NEXT_METHOD) return _True except astroid.NotFoundError: pass elif isinstance(node, nodes.ClassDef): metaclass = node.metaclass() if metaclass and isinstance(metaclass, nodes.ClassDef): try: metaclass.local_attr(NEXT_METHOD) return _True except astroid.NotFoundError: pass return _False def _check_iter(self, node, inferred): if not self._is_iterator(inferred): self.add_message("non-iterator-returned", node=node) def _check_len(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-returned", node=node) def _check_bool(self, node, inferred): if not self._is_bool(inferred): self.add_message("invalid-bool-returned", node=node) def _check_index(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-index-returned", node=node) def _check_repr(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-repr-returned", node=node) def _check_str(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-str-returned", node=node) def _check_bytes(self, node, inferred): if not self._is_bytes(inferred): self.add_message("invalid-bytes-returned", node=node) def _check_hash(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-hash-returned", node=node) def _check_length_hint(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-hint-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-hint-returned", node=node) def _check_format(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-format-returned", node=node) def _check_getnewargs(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-returned", node=node) def _check_getnewargs_ex(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-ex-returned", node=node) return if not isinstance(inferred, nodes.Tuple): # If it's not an astroid.Tuple we can't analyze it further return found_error = _False if len(inferred.elts) != 2: found_error = _True else: for arg, check in ( (inferred.elts[0], self._is_tuple), (inferred.elts[1], self._is_dict), ): if isinstance(arg, nodes.Call): arg = safe_infer(arg) if arg and arg is not astroid.Uninferable: if not check(arg): found_error = _True break if found_error: self.add_message("invalid-getnewargs-ex-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
294
local_attr
ref
function
node.local_attr(NEXT_METHOD)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
299
metaclass
ref
class
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
302
local_attr
ref
class
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
308
_check_iter
def
function
def _check_iter(self, node, inferred): if not self._is_iterator(inferred): self.add_message("non-iterator-returned", node=node) def _check_len(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-returned", node=node) def _check_bool(self, node, inferred): if not self._is_bool(inferred): self.add_message("invalid-bool-returned", node=node) def _check_index(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-index-returned", node=node) def _check_repr(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-repr-returned", node=node) def _check_str(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-str-returned", node=node) def _check_bytes(self, node, inferred): if not self._is_bytes(inferred): self.add_message("invalid-bytes-returned", node=node) def _check_hash(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-hash-returned", node=node) def _check_length_hint(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-hint-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-hint-returned", node=node) def _check_format(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-format-returned", node=node) def _check_getnewargs(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-returned", node=node) def _check_getnewargs_ex(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-ex-returned", node=node) return if not isinstance(inferred, nodes.Tuple): # If it's not an astroid.Tuple we can't analyze it further return found_error = _False if len(inferred.elts) != 2: found_error = _True else: for arg, check in ( (inferred.elts[0], self._is_tuple), (inferred.elts[1], self._is_dict), ): if isinstance(arg, nodes.Call): arg = safe_infer(arg) if arg and arg is not astroid.Uninferable: if not check(arg): found_error = _True break if found_error: self.add_message("invalid-getnewargs-ex-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
309
_is_iterator
ref
function
if not self._is_iterator(inferred):
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
310
add_message
ref
function
self.add_message("non-iterator-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
312
_check_len
def
function
def _check_len(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-returned", node=node) def _check_bool(self, node, inferred): if not self._is_bool(inferred): self.add_message("invalid-bool-returned", node=node) def _check_index(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-index-returned", node=node) def _check_repr(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-repr-returned", node=node) def _check_str(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-str-returned", node=node) def _check_bytes(self, node, inferred): if not self._is_bytes(inferred): self.add_message("invalid-bytes-returned", node=node) def _check_hash(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-hash-returned", node=node) def _check_length_hint(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-hint-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-hint-returned", node=node) def _check_format(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-format-returned", node=node) def _check_getnewargs(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-returned", node=node) def _check_getnewargs_ex(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-ex-returned", node=node) return if not isinstance(inferred, nodes.Tuple): # If it's not an astroid.Tuple we can't analyze it further return found_error = _False if len(inferred.elts) != 2: found_error = _True else: for arg, check in ( (inferred.elts[0], self._is_tuple), (inferred.elts[1], self._is_dict), ): if isinstance(arg, nodes.Call): arg = safe_infer(arg) if arg and arg is not astroid.Uninferable: if not check(arg): found_error = _True break if found_error: self.add_message("invalid-getnewargs-ex-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
313
_is_int
ref
function
if not self._is_int(inferred):
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
314
add_message
ref
function
self.add_message("invalid-length-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
316
add_message
ref
function
self.add_message("invalid-length-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
318
_check_bool
def
function
def _check_bool(self, node, inferred): if not self._is_bool(inferred): self.add_message("invalid-bool-returned", node=node) def _check_index(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-index-returned", node=node) def _check_repr(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-repr-returned", node=node) def _check_str(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-str-returned", node=node) def _check_bytes(self, node, inferred): if not self._is_bytes(inferred): self.add_message("invalid-bytes-returned", node=node) def _check_hash(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-hash-returned", node=node) def _check_length_hint(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-hint-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-hint-returned", node=node) def _check_format(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-format-returned", node=node) def _check_getnewargs(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-returned", node=node) def _check_getnewargs_ex(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-ex-returned", node=node) return if not isinstance(inferred, nodes.Tuple): # If it's not an astroid.Tuple we can't analyze it further return found_error = _False if len(inferred.elts) != 2: found_error = _True else: for arg, check in ( (inferred.elts[0], self._is_tuple), (inferred.elts[1], self._is_dict), ): if isinstance(arg, nodes.Call): arg = safe_infer(arg) if arg and arg is not astroid.Uninferable: if not check(arg): found_error = _True break if found_error: self.add_message("invalid-getnewargs-ex-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
319
_is_bool
ref
function
if not self._is_bool(inferred):
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
320
add_message
ref
function
self.add_message("invalid-bool-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
322
_check_index
def
function
def _check_index(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-index-returned", node=node) def _check_repr(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-repr-returned", node=node) def _check_str(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-str-returned", node=node) def _check_bytes(self, node, inferred): if not self._is_bytes(inferred): self.add_message("invalid-bytes-returned", node=node) def _check_hash(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-hash-returned", node=node) def _check_length_hint(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-hint-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-hint-returned", node=node) def _check_format(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-format-returned", node=node) def _check_getnewargs(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-returned", node=node) def _check_getnewargs_ex(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-ex-returned", node=node) return if not isinstance(inferred, nodes.Tuple): # If it's not an astroid.Tuple we can't analyze it further return found_error = _False if len(inferred.elts) != 2: found_error = _True else: for arg, check in ( (inferred.elts[0], self._is_tuple), (inferred.elts[1], self._is_dict), ): if isinstance(arg, nodes.Call): arg = safe_infer(arg) if arg and arg is not astroid.Uninferable: if not check(arg): found_error = _True break if found_error: self.add_message("invalid-getnewargs-ex-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
323
_is_int
ref
function
if not self._is_int(inferred):
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
324
add_message
ref
function
self.add_message("invalid-index-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
326
_check_repr
def
function
def _check_repr(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-repr-returned", node=node) def _check_str(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-str-returned", node=node) def _check_bytes(self, node, inferred): if not self._is_bytes(inferred): self.add_message("invalid-bytes-returned", node=node) def _check_hash(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-hash-returned", node=node) def _check_length_hint(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-hint-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-hint-returned", node=node) def _check_format(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-format-returned", node=node) def _check_getnewargs(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-returned", node=node) def _check_getnewargs_ex(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-ex-returned", node=node) return if not isinstance(inferred, nodes.Tuple): # If it's not an astroid.Tuple we can't analyze it further return found_error = _False if len(inferred.elts) != 2: found_error = _True else: for arg, check in ( (inferred.elts[0], self._is_tuple), (inferred.elts[1], self._is_dict), ): if isinstance(arg, nodes.Call): arg = safe_infer(arg) if arg and arg is not astroid.Uninferable: if not check(arg): found_error = _True break if found_error: self.add_message("invalid-getnewargs-ex-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
327
_is_str
ref
function
if not self._is_str(inferred):
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
328
add_message
ref
function
self.add_message("invalid-repr-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
330
_check_str
def
function
def _check_str(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-str-returned", node=node) def _check_bytes(self, node, inferred): if not self._is_bytes(inferred): self.add_message("invalid-bytes-returned", node=node) def _check_hash(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-hash-returned", node=node) def _check_length_hint(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-hint-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-hint-returned", node=node) def _check_format(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-format-returned", node=node) def _check_getnewargs(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-returned", node=node) def _check_getnewargs_ex(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-ex-returned", node=node) return if not isinstance(inferred, nodes.Tuple): # If it's not an astroid.Tuple we can't analyze it further return found_error = _False if len(inferred.elts) != 2: found_error = _True else: for arg, check in ( (inferred.elts[0], self._is_tuple), (inferred.elts[1], self._is_dict), ): if isinstance(arg, nodes.Call): arg = safe_infer(arg) if arg and arg is not astroid.Uninferable: if not check(arg): found_error = _True break if found_error: self.add_message("invalid-getnewargs-ex-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
331
_is_str
ref
function
if not self._is_str(inferred):
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
332
add_message
ref
function
self.add_message("invalid-str-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
334
_check_bytes
def
function
def _check_bytes(self, node, inferred): if not self._is_bytes(inferred): self.add_message("invalid-bytes-returned", node=node) def _check_hash(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-hash-returned", node=node) def _check_length_hint(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-hint-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-hint-returned", node=node) def _check_format(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-format-returned", node=node) def _check_getnewargs(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-returned", node=node) def _check_getnewargs_ex(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-ex-returned", node=node) return if not isinstance(inferred, nodes.Tuple): # If it's not an astroid.Tuple we can't analyze it further return found_error = _False if len(inferred.elts) != 2: found_error = _True else: for arg, check in ( (inferred.elts[0], self._is_tuple), (inferred.elts[1], self._is_dict), ): if isinstance(arg, nodes.Call): arg = safe_infer(arg) if arg and arg is not astroid.Uninferable: if not check(arg): found_error = _True break if found_error: self.add_message("invalid-getnewargs-ex-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
335
_is_bytes
ref
function
if not self._is_bytes(inferred):
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
336
add_message
ref
function
self.add_message("invalid-bytes-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
338
_check_hash
def
function
def _check_hash(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-hash-returned", node=node) def _check_length_hint(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-hint-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-hint-returned", node=node) def _check_format(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-format-returned", node=node) def _check_getnewargs(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-returned", node=node) def _check_getnewargs_ex(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-ex-returned", node=node) return if not isinstance(inferred, nodes.Tuple): # If it's not an astroid.Tuple we can't analyze it further return found_error = _False if len(inferred.elts) != 2: found_error = _True else: for arg, check in ( (inferred.elts[0], self._is_tuple), (inferred.elts[1], self._is_dict), ): if isinstance(arg, nodes.Call): arg = safe_infer(arg) if arg and arg is not astroid.Uninferable: if not check(arg): found_error = _True break if found_error: self.add_message("invalid-getnewargs-ex-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
339
_is_int
ref
function
if not self._is_int(inferred):
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
340
add_message
ref
function
self.add_message("invalid-hash-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
342
_check_length_hint
def
function
def _check_length_hint(self, node, inferred): if not self._is_int(inferred): self.add_message("invalid-length-hint-returned", node=node) elif isinstance(inferred, nodes.Const) and inferred.value < 0: self.add_message("invalid-length-hint-returned", node=node) def _check_format(self, node, inferred): if not self._is_str(inferred): self.add_message("invalid-format-returned", node=node) def _check_getnewargs(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-returned", node=node) def _check_getnewargs_ex(self, node, inferred): if not self._is_tuple(inferred): self.add_message("invalid-getnewargs-ex-returned", node=node) return if not isinstance(inferred, nodes.Tuple): # If it's not an astroid.Tuple we can't analyze it further return found_error = _False if len(inferred.elts) != 2: found_error = _True else: for arg, check in ( (inferred.elts[0], self._is_tuple), (inferred.elts[1], self._is_dict), ): if isinstance(arg, nodes.Call): arg = safe_infer(arg) if arg and arg is not astroid.Uninferable: if not check(arg): found_error = _True break if found_error: self.add_message("invalid-getnewargs-ex-returned", node=node)
playground/e9b22a58-260b-483f-88d7-7a5fe9f8b1d4/pylint/pylint/checkers/classes/special_methods_checker.py
pylint/checkers/classes/special_methods_checker.py
343
_is_int
ref
function
if not self._is_int(inferred):