def _check_nested_function(self, node: AnyFunctionDef) -> None:
is_inside_function = isinstance(get_context(node), FunctionNodes)
is_direct = isinstance(get_parent(node), FunctionNodes)
is_bad = is_direct and node.name not in NESTED_FUNCTIONS_WHITELIST
if is_bad or (is_inside_function and not is_direct):
self.add_violation(NestedFunctionViolation(node, text=node.name))
def visit_Lambda(self, node: ast.Lambda) -> None:
"""
Used to find nested ``lambda`` functions.
Raises:
NestedFunctionViolation
"""
parent = getattr(node, 'parent', None)
if isinstance(parent, ast.Lambda):
self.add_violation(NestedFunctionViolation(node))
self.generic_visit(node)
def visit_FunctionDef(self, node: ast.FunctionDef) -> None:
"""
Used to find nested functions.
Uses ``NESTED_FUNCTIONS_WHITELIST`` to respect some nested functions.
Respected usecases for nested functions:
1. decorator
2. factory function
Raises:
NestedFunctionViolation
"""
parent = getattr(node, 'parent', None)
is_inside_function = isinstance(parent, ast.FunctionDef)
if is_inside_function and node.name not in NESTED_FUNCTIONS_WHITELIST:
self.add_violation(NestedFunctionViolation(node, text=node.name))
self.generic_visit(node)
def _check_nested_lambdas(self, node: ast.Lambda) -> None:
is_direct = isinstance(get_context(node), ast.Lambda)
is_deep = is_child_of(node, ast.Lambda)
if is_direct or is_deep:
self.add_violation(NestedFunctionViolation(node, text='lambda'))
def _check_nested_lambdas(self, node: ast.Lambda) -> None:
parent = getattr(node, 'parent', None)
if isinstance(parent, ast.Lambda):
self.add_violation(NestedFunctionViolation(node))
def _check_nested_function(self, node: AnyFunctionDef) -> None:
parent = getattr(node, 'parent', None)
is_inside_function = isinstance(parent, self._function_nodes)
if is_inside_function and node.name not in NESTED_FUNCTIONS_WHITELIST:
self.add_violation(NestedFunctionViolation(node, text=node.name))
def _check_nested_lambdas(self, node: ast.Lambda) -> None:
if isinstance(get_parent(node), ast.Lambda):
self.add_violation(NestedFunctionViolation(node, text='lambda'))