pytype.pytd.visitors.LookupExternalTypes

class documentation

class LookupExternalTypes(_RemoveTypeParametersFromGenericAny, _ToTypeVisitor): (source)

Look up NamedType pointers using a symbol table.

Method	`__init__`	Create this visitor.
Method	`EnterAlias`	Undocumented
Method	`EnterGenericType`	Undocumented
Method	`EnterTypeDeclUnit`	Undocumented
Method	`LeaveAlias`	Undocumented
Method	`LeaveGenericType`	Undocumented
Method	`VisitClassType`	Undocumented
Method	`VisitGenericType`	Undocumented
Method	`VisitNamedType`	Try to look up a NamedType.
Method	`VisitTypeDeclUnit`	Add star imports to the ast.
Instance Variable	`name`	Undocumented
Method	`_DiscardExistingNames`	Undocumented
Method	`_EquivalentAliases`	Undocumented
Method	`_HandleDuplicates`	Handle duplicate module-level aliases.
Method	`_ImportAll`	Get the new members that would result from a star import of the module.
Method	`_LookupModuleRecursive`	Undocumented
Method	`_ModulePrefix`	Undocumented
Method	`_ResolveAlias`	Undocumented
Method	`_ResolveUsingGetattr`	Try to resolve an identifier using the top level __getattr__ function.
Method	`_ResolveUsingStarImport`	Try to use any star imports in 'module' to resolve 'name'.
Instance Variable	`_alias_name`	Undocumented
Instance Variable	`_in_generic_type`	Undocumented
Instance Variable	`_module_alias_map`	Undocumented
Instance Variable	`_module_map`	Undocumented
Instance Variable	`_star_imports`	Undocumented
Instance Variable	`_unit`	Undocumented

Inherited from _RemoveTypeParametersFromGenericAny:

Class Variable unchecked_node_names Undocumented

Inherited from _ToTypeVisitor (via _RemoveTypeParametersFromGenericAny):

Method	`EnterLiteral`	Undocumented
Method	`LeaveLiteral`	Undocumented
Method	`to_type`	Undocumented
Instance Variable	`allow_functions`	Undocumented
Instance Variable	`allow_singletons`	Undocumented
Instance Variable	`_in_alias`	Undocumented
Instance Variable	`_in_literal`	Undocumented

Inherited from Visitor (via _RemoveTypeParametersFromGenericAny, _ToTypeVisitor):

Method	`Enter`	Undocumented
Method	`Leave`	Undocumented
Method	`Visit`	Undocumented
Class Variable	`old_node`	Undocumented
Class Variable	`visits_all_node_types`	Undocumented
Instance Variable	`enter_functions`	Undocumented
Instance Variable	`leave_functions`	Undocumented
Instance Variable	`visit_class_names`	Undocumented
Instance Variable	`visit_functions`	Undocumented
Class Variable	`_visitor_functions_cache`	Undocumented

def __init__(self, module_map, self_name=None, module_alias_map=None): (source) ¶

overrides pytype.pytd.visitors._ToTypeVisitor.__init__

Create this visitor. Args: module_map: A dictionary mapping module names to symbol tables. self_name: The name of the current module. If provided, then the visitor will ignore nodes with this module name. module_alias_map: A dictionary mapping module aliases to real module names. If the source contains "import X as Y", module_alias_map should contain an entry mapping "Y": "X".

def EnterAlias(self, t): (source) ¶

overrides pytype.pytd.visitors._ToTypeVisitor.EnterAlias

Undocumented

def EnterGenericType(self, _): (source) ¶

Undocumented

def EnterTypeDeclUnit(self, node): (source) ¶

Undocumented

def LeaveAlias(self, t): (source) ¶

overrides pytype.pytd.visitors._ToTypeVisitor.LeaveAlias

Undocumented

def LeaveGenericType(self, _): (source) ¶

Undocumented

def VisitClassType(self, t): (source) ¶

Undocumented

def VisitGenericType(self, node): (source) ¶

overrides pytype.pytd.visitors._RemoveTypeParametersFromGenericAny.VisitGenericType

Undocumented

def VisitNamedType(self, t): (source) ¶

Try to look up a NamedType. Args: t: An instance of pytd.NamedType Returns: The same node t. Raises: KeyError: If we can't find a module, or an identifier in a module, or if an identifier in a module isn't a class.

def VisitTypeDeclUnit(self, node): (source) ¶

Add star imports to the ast. Args: node: A pytd.TypeDeclUnit instance. Returns: The pytd.TypeDeclUnit instance, with star imports added. Raises: KeyError: If a duplicate member is found during import.

name = (source) ¶

Undocumented

def _DiscardExistingNames(self, node, potential_members): (source) ¶

Undocumented

def _EquivalentAliases(self, alias1, alias2) -> bool: (source) ¶

Undocumented

def _HandleDuplicates(self, new_aliases): (source) ¶

Handle duplicate module-level aliases. Aliases pointing to qualified names could be the result of importing the same entity through multiple import paths, which should not count as an error; instead we just deduplicate them. Args: new_aliases: The list of new aliases to deduplicate Returns: A deduplicated list of aliases. Raises: KeyError: If there is a name clash.

def _ImportAll(self, module): (source) ¶

Get the new members that would result from a star import of the module. Args: module: The module name. Returns: A tuple of: - a list of new aliases, - a set of new __getattr__ functions.

def _LookupModuleRecursive(self, name): (source) ¶

Undocumented

def _ModulePrefix(self): (source) ¶

Undocumented

def _ResolveAlias(self, alias): (source) ¶

Undocumented

def _ResolveUsingGetattr(self, module_name, module): (source) ¶

Try to resolve an identifier using the top level __getattr__ function.

def _ResolveUsingStarImport(self, module, name): (source) ¶

Try to use any star imports in 'module' to resolve 'name'.

_alias_name = (source) ¶

Undocumented