| """ |
| Implementations of standard library functions, because it's not possible to |
| understand them with Jedi. |
| |
| To add a new implementation, create a function and add it to the |
| ``_implemented`` dict at the bottom of this module. |
| |
| Note that this module exists only to implement very specific functionality in |
| the standard library. The usual way to understand the standard library is the |
| compiled module that returns the types for C-builtins. |
| """ |
| import parso |
| import os |
| from inspect import Parameter |
|
|
| from jedi import debug |
| from jedi.inference.utils import safe_property |
| from jedi.inference.helpers import get_str_or_none |
| from jedi.inference.arguments import iterate_argument_clinic, ParamIssue, \ |
| repack_with_argument_clinic, AbstractArguments, TreeArgumentsWrapper |
| from jedi.inference import analysis |
| from jedi.inference import compiled |
| from jedi.inference.value.instance import \ |
| AnonymousMethodExecutionContext, MethodExecutionContext |
| from jedi.inference.base_value import ContextualizedNode, \ |
| NO_VALUES, ValueSet, ValueWrapper, LazyValueWrapper |
| from jedi.inference.value import ClassValue, ModuleValue |
| from jedi.inference.value.klass import ClassMixin |
| from jedi.inference.value.function import FunctionMixin |
| from jedi.inference.value import iterable |
| from jedi.inference.lazy_value import LazyTreeValue, LazyKnownValue, \ |
| LazyKnownValues |
| from jedi.inference.names import ValueName, BaseTreeParamName |
| from jedi.inference.filters import AttributeOverwrite, publish_method, \ |
| ParserTreeFilter, DictFilter |
| from jedi.inference.signature import AbstractSignature, SignatureWrapper |
|
|
|
|
| |
| _NAMEDTUPLE_CLASS_TEMPLATE = """\ |
| _property = property |
| _tuple = tuple |
| from operator import itemgetter as _itemgetter |
| from collections import OrderedDict |
| |
| class {typename}(tuple): |
| __slots__ = () |
| |
| _fields = {field_names!r} |
| |
| def __new__(_cls, {arg_list}): |
| 'Create new instance of {typename}({arg_list})' |
| return _tuple.__new__(_cls, ({arg_list})) |
| |
| @classmethod |
| def _make(cls, iterable, new=tuple.__new__, len=len): |
| 'Make a new {typename} object from a sequence or iterable' |
| result = new(cls, iterable) |
| if len(result) != {num_fields:d}: |
| raise TypeError('Expected {num_fields:d} arguments, got %d' % len(result)) |
| return result |
| |
| def _replace(_self, **kwds): |
| 'Return a new {typename} object replacing specified fields with new values' |
| result = _self._make(map(kwds.pop, {field_names!r}, _self)) |
| if kwds: |
| raise ValueError('Got unexpected field names: %r' % list(kwds)) |
| return result |
| |
| def __repr__(self): |
| 'Return a nicely formatted representation string' |
| return self.__class__.__name__ + '({repr_fmt})' % self |
| |
| def _asdict(self): |
| 'Return a new OrderedDict which maps field names to their values.' |
| return OrderedDict(zip(self._fields, self)) |
| |
| def __getnewargs__(self): |
| 'Return self as a plain tuple. Used by copy and pickle.' |
| return tuple(self) |
| |
| # These methods were added by Jedi. |
| # __new__ doesn't really work with Jedi. So adding this to nametuples seems |
| # like the easiest way. |
| def __init__(self, {arg_list}): |
| 'A helper function for namedtuple.' |
| self.__iterable = ({arg_list}) |
| |
| def __iter__(self): |
| for i in self.__iterable: |
| yield i |
| |
| def __getitem__(self, y): |
| return self.__iterable[y] |
| |
| {field_defs} |
| """ |
|
|
| _NAMEDTUPLE_FIELD_TEMPLATE = '''\ |
| {name} = _property(_itemgetter({index:d}), doc='Alias for field number {index:d}') |
| ''' |
|
|
|
|
| def execute(callback): |
| def wrapper(value, arguments): |
| def call(): |
| return callback(value, arguments=arguments) |
|
|
| try: |
| obj_name = value.name.string_name |
| except AttributeError: |
| pass |
| else: |
| p = value.parent_context |
| if p is not None and p.is_builtins_module(): |
| module_name = 'builtins' |
| elif p is not None and p.is_module(): |
| module_name = p.py__name__() |
| else: |
| return call() |
|
|
| if value.is_bound_method() or value.is_instance(): |
| |
| |
| return call() |
|
|
| |
| try: |
| func = _implemented[module_name][obj_name] |
| except KeyError: |
| pass |
| else: |
| return func(value, arguments=arguments, callback=call) |
| return call() |
|
|
| return wrapper |
|
|
|
|
| def _follow_param(inference_state, arguments, index): |
| try: |
| key, lazy_value = list(arguments.unpack())[index] |
| except IndexError: |
| return NO_VALUES |
| else: |
| return lazy_value.infer() |
|
|
|
|
| def argument_clinic(clinic_string, want_value=False, want_context=False, |
| want_arguments=False, want_inference_state=False, |
| want_callback=False): |
| """ |
| Works like Argument Clinic (PEP 436), to validate function params. |
| """ |
|
|
| def f(func): |
| def wrapper(value, arguments, callback): |
| try: |
| args = tuple(iterate_argument_clinic( |
| value.inference_state, arguments, clinic_string)) |
| except ParamIssue: |
| return NO_VALUES |
|
|
| debug.dbg('builtin start %s' % value, color='MAGENTA') |
| kwargs = {} |
| if want_context: |
| kwargs['context'] = arguments.context |
| if want_value: |
| kwargs['value'] = value |
| if want_inference_state: |
| kwargs['inference_state'] = value.inference_state |
| if want_arguments: |
| kwargs['arguments'] = arguments |
| if want_callback: |
| kwargs['callback'] = callback |
| result = func(*args, **kwargs) |
| debug.dbg('builtin end: %s', result, color='MAGENTA') |
| return result |
|
|
| return wrapper |
| return f |
|
|
|
|
| @argument_clinic('iterator[, default], /', want_inference_state=True) |
| def builtins_next(iterators, defaults, inference_state): |
| |
| |
| return defaults | iterators.py__getattribute__('__next__').execute_with_values() |
|
|
|
|
| @argument_clinic('iterator[, default], /') |
| def builtins_iter(iterators_or_callables, defaults): |
| |
| return iterators_or_callables.py__getattribute__('__iter__').execute_with_values() |
|
|
|
|
| @argument_clinic('object, name[, default], /') |
| def builtins_getattr(objects, names, defaults=None): |
| |
| for value in objects: |
| for name in names: |
| string = get_str_or_none(name) |
| if string is None: |
| debug.warning('getattr called without str') |
| continue |
| else: |
| return value.py__getattribute__(string) |
| return NO_VALUES |
|
|
|
|
| @argument_clinic('object[, bases, dict], /') |
| def builtins_type(objects, bases, dicts): |
| if bases or dicts: |
| |
| return NO_VALUES |
| else: |
| return objects.py__class__() |
|
|
|
|
| class SuperInstance(LazyValueWrapper): |
| """To be used like the object ``super`` returns.""" |
| def __init__(self, inference_state, instance): |
| self.inference_state = inference_state |
| self._instance = instance |
|
|
| def _get_bases(self): |
| return self._instance.py__class__().py__bases__() |
|
|
| def _get_wrapped_value(self): |
| objs = self._get_bases()[0].infer().execute_with_values() |
| if not objs: |
| |
| |
| return self._instance |
| return next(iter(objs)) |
|
|
| def get_filters(self, origin_scope=None): |
| for b in self._get_bases(): |
| for value in b.infer().execute_with_values(): |
| for f in value.get_filters(): |
| yield f |
|
|
|
|
| @argument_clinic('[type[, value]], /', want_context=True) |
| def builtins_super(types, objects, context): |
| instance = None |
| if isinstance(context, AnonymousMethodExecutionContext): |
| instance = context.instance |
| elif isinstance(context, MethodExecutionContext): |
| instance = context.instance |
| if instance is None: |
| return NO_VALUES |
| return ValueSet({SuperInstance(instance.inference_state, instance)}) |
|
|
|
|
| class ReversedObject(AttributeOverwrite): |
| def __init__(self, reversed_obj, iter_list): |
| super().__init__(reversed_obj) |
| self._iter_list = iter_list |
|
|
| def py__iter__(self, contextualized_node=None): |
| return self._iter_list |
|
|
| @publish_method('__next__') |
| def _next(self, arguments): |
| return ValueSet.from_sets( |
| lazy_value.infer() for lazy_value in self._iter_list |
| ) |
|
|
|
|
| @argument_clinic('sequence, /', want_value=True, want_arguments=True) |
| def builtins_reversed(sequences, value, arguments): |
| |
| |
| |
| key, lazy_value = next(arguments.unpack()) |
| cn = None |
| if isinstance(lazy_value, LazyTreeValue): |
| cn = ContextualizedNode(lazy_value.context, lazy_value.data) |
| ordered = list(sequences.iterate(cn)) |
|
|
| |
| |
| |
| |
| seq, = value.inference_state.typing_module.py__getattribute__('Iterator').execute_with_values() |
| return ValueSet([ReversedObject(seq, list(reversed(ordered)))]) |
|
|
|
|
| @argument_clinic('value, type, /', want_arguments=True, want_inference_state=True) |
| def builtins_isinstance(objects, types, arguments, inference_state): |
| bool_results = set() |
| for o in objects: |
| cls = o.py__class__() |
| try: |
| cls.py__bases__ |
| except AttributeError: |
| |
| |
| |
| bool_results = set([True, False]) |
| break |
|
|
| mro = list(cls.py__mro__()) |
|
|
| for cls_or_tup in types: |
| if cls_or_tup.is_class(): |
| bool_results.add(cls_or_tup in mro) |
| elif cls_or_tup.name.string_name == 'tuple' \ |
| and cls_or_tup.get_root_context().is_builtins_module(): |
| |
| classes = ValueSet.from_sets( |
| lazy_value.infer() |
| for lazy_value in cls_or_tup.iterate() |
| ) |
| bool_results.add(any(cls in mro for cls in classes)) |
| else: |
| _, lazy_value = list(arguments.unpack())[1] |
| if isinstance(lazy_value, LazyTreeValue): |
| node = lazy_value.data |
| message = 'TypeError: isinstance() arg 2 must be a ' \ |
| 'class, type, or tuple of classes and types, ' \ |
| 'not %s.' % cls_or_tup |
| analysis.add(lazy_value.context, 'type-error-isinstance', node, message) |
|
|
| return ValueSet( |
| compiled.builtin_from_name(inference_state, str(b)) |
| for b in bool_results |
| ) |
|
|
|
|
| class StaticMethodObject(ValueWrapper): |
| def py__get__(self, instance, class_value): |
| return ValueSet([self._wrapped_value]) |
|
|
|
|
| @argument_clinic('sequence, /') |
| def builtins_staticmethod(functions): |
| return ValueSet(StaticMethodObject(f) for f in functions) |
|
|
|
|
| class ClassMethodObject(ValueWrapper): |
| def __init__(self, class_method_obj, function): |
| super().__init__(class_method_obj) |
| self._function = function |
|
|
| def py__get__(self, instance, class_value): |
| return ValueSet([ |
| ClassMethodGet(__get__, class_value, self._function) |
| for __get__ in self._wrapped_value.py__getattribute__('__get__') |
| ]) |
|
|
|
|
| class ClassMethodGet(ValueWrapper): |
| def __init__(self, get_method, klass, function): |
| super().__init__(get_method) |
| self._class = klass |
| self._function = function |
|
|
| def get_signatures(self): |
| return [sig.bind(self._function) for sig in self._function.get_signatures()] |
|
|
| def py__call__(self, arguments): |
| return self._function.execute(ClassMethodArguments(self._class, arguments)) |
|
|
|
|
| class ClassMethodArguments(TreeArgumentsWrapper): |
| def __init__(self, klass, arguments): |
| super().__init__(arguments) |
| self._class = klass |
|
|
| def unpack(self, func=None): |
| yield None, LazyKnownValue(self._class) |
| for values in self._wrapped_arguments.unpack(func): |
| yield values |
|
|
|
|
| @argument_clinic('sequence, /', want_value=True, want_arguments=True) |
| def builtins_classmethod(functions, value, arguments): |
| return ValueSet( |
| ClassMethodObject(class_method_object, function) |
| for class_method_object in value.py__call__(arguments=arguments) |
| for function in functions |
| ) |
|
|
|
|
| class PropertyObject(AttributeOverwrite, ValueWrapper): |
| api_type = 'property' |
|
|
| def __init__(self, property_obj, function): |
| super().__init__(property_obj) |
| self._function = function |
|
|
| def py__get__(self, instance, class_value): |
| if instance is None: |
| return ValueSet([self]) |
| return self._function.execute_with_values(instance) |
|
|
| @publish_method('deleter') |
| @publish_method('getter') |
| @publish_method('setter') |
| def _return_self(self, arguments): |
| return ValueSet({self}) |
|
|
|
|
| @argument_clinic('func, /', want_callback=True) |
| def builtins_property(functions, callback): |
| return ValueSet( |
| PropertyObject(property_value, function) |
| for property_value in callback() |
| for function in functions |
| ) |
|
|
|
|
| def collections_namedtuple(value, arguments, callback): |
| """ |
| Implementation of the namedtuple function. |
| |
| This has to be done by processing the namedtuple class template and |
| inferring the result. |
| |
| """ |
| inference_state = value.inference_state |
|
|
| |
| name = 'jedi_unknown_namedtuple' |
| for c in _follow_param(inference_state, arguments, 0): |
| x = get_str_or_none(c) |
| if x is not None: |
| name = x |
| break |
|
|
| |
| param_values = _follow_param(inference_state, arguments, 1) |
| if not param_values: |
| return NO_VALUES |
| _fields = list(param_values)[0] |
| string = get_str_or_none(_fields) |
| if string is not None: |
| fields = string.replace(',', ' ').split() |
| elif isinstance(_fields, iterable.Sequence): |
| fields = [ |
| get_str_or_none(v) |
| for lazy_value in _fields.py__iter__() |
| for v in lazy_value.infer() |
| ] |
| fields = [f for f in fields if f is not None] |
| else: |
| return NO_VALUES |
|
|
| |
| code = _NAMEDTUPLE_CLASS_TEMPLATE.format( |
| typename=name, |
| field_names=tuple(fields), |
| num_fields=len(fields), |
| arg_list=repr(tuple(fields)).replace("'", "")[1:-1], |
| repr_fmt='', |
| field_defs='\n'.join(_NAMEDTUPLE_FIELD_TEMPLATE.format(index=index, name=name) |
| for index, name in enumerate(fields)) |
| ) |
|
|
| |
| module = inference_state.grammar.parse(code) |
| generated_class = next(module.iter_classdefs()) |
| parent_context = ModuleValue( |
| inference_state, module, |
| code_lines=parso.split_lines(code, keepends=True), |
| ).as_context() |
|
|
| return ValueSet([ClassValue(inference_state, parent_context, generated_class)]) |
|
|
|
|
| class PartialObject(ValueWrapper): |
| def __init__(self, actual_value, arguments, instance=None): |
| super().__init__(actual_value) |
| self._arguments = arguments |
| self._instance = instance |
|
|
| def _get_functions(self, unpacked_arguments): |
| key, lazy_value = next(unpacked_arguments, (None, None)) |
| if key is not None or lazy_value is None: |
| debug.warning("Partial should have a proper function %s", self._arguments) |
| return None |
| return lazy_value.infer() |
|
|
| def get_signatures(self): |
| unpacked_arguments = self._arguments.unpack() |
| funcs = self._get_functions(unpacked_arguments) |
| if funcs is None: |
| return [] |
|
|
| arg_count = 0 |
| if self._instance is not None: |
| arg_count = 1 |
| keys = set() |
| for key, _ in unpacked_arguments: |
| if key is None: |
| arg_count += 1 |
| else: |
| keys.add(key) |
| return [PartialSignature(s, arg_count, keys) for s in funcs.get_signatures()] |
|
|
| def py__call__(self, arguments): |
| funcs = self._get_functions(self._arguments.unpack()) |
| if funcs is None: |
| return NO_VALUES |
|
|
| return funcs.execute( |
| MergedPartialArguments(self._arguments, arguments, self._instance) |
| ) |
|
|
| def py__doc__(self): |
| """ |
| In CPython partial does not replace the docstring. However we are still |
| imitating it here, because we want this docstring to be worth something |
| for the user. |
| """ |
| callables = self._get_functions(self._arguments.unpack()) |
| if callables is None: |
| return '' |
| for callable_ in callables: |
| return callable_.py__doc__() |
| return '' |
|
|
| def py__get__(self, instance, class_value): |
| return ValueSet([self]) |
|
|
|
|
| class PartialMethodObject(PartialObject): |
| def py__get__(self, instance, class_value): |
| if instance is None: |
| return ValueSet([self]) |
| return ValueSet([PartialObject(self._wrapped_value, self._arguments, instance)]) |
|
|
|
|
| class PartialSignature(SignatureWrapper): |
| def __init__(self, wrapped_signature, skipped_arg_count, skipped_arg_set): |
| super().__init__(wrapped_signature) |
| self._skipped_arg_count = skipped_arg_count |
| self._skipped_arg_set = skipped_arg_set |
|
|
| def get_param_names(self, resolve_stars=False): |
| names = self._wrapped_signature.get_param_names()[self._skipped_arg_count:] |
| return [n for n in names if n.string_name not in self._skipped_arg_set] |
|
|
|
|
| class MergedPartialArguments(AbstractArguments): |
| def __init__(self, partial_arguments, call_arguments, instance=None): |
| self._partial_arguments = partial_arguments |
| self._call_arguments = call_arguments |
| self._instance = instance |
|
|
| def unpack(self, funcdef=None): |
| unpacked = self._partial_arguments.unpack(funcdef) |
| |
| |
| next(unpacked, None) |
| if self._instance is not None: |
| yield None, LazyKnownValue(self._instance) |
| for key_lazy_value in unpacked: |
| yield key_lazy_value |
| for key_lazy_value in self._call_arguments.unpack(funcdef): |
| yield key_lazy_value |
|
|
|
|
| def functools_partial(value, arguments, callback): |
| return ValueSet( |
| PartialObject(instance, arguments) |
| for instance in value.py__call__(arguments) |
| ) |
|
|
|
|
| def functools_partialmethod(value, arguments, callback): |
| return ValueSet( |
| PartialMethodObject(instance, arguments) |
| for instance in value.py__call__(arguments) |
| ) |
|
|
|
|
| @argument_clinic('first, /') |
| def _return_first_param(firsts): |
| return firsts |
|
|
|
|
| @argument_clinic('seq') |
| def _random_choice(sequences): |
| return ValueSet.from_sets( |
| lazy_value.infer() |
| for sequence in sequences |
| for lazy_value in sequence.py__iter__() |
| ) |
|
|
|
|
| def _dataclass(value, arguments, callback): |
| for c in _follow_param(value.inference_state, arguments, 0): |
| if c.is_class(): |
| return ValueSet([DataclassWrapper(c)]) |
| else: |
| return ValueSet([value]) |
| return NO_VALUES |
|
|
|
|
| class DataclassWrapper(ValueWrapper, ClassMixin): |
| def get_signatures(self): |
| param_names = [] |
| for cls in reversed(list(self.py__mro__())): |
| if isinstance(cls, DataclassWrapper): |
| filter_ = cls.as_context().get_global_filter() |
| |
| |
| |
| for name in sorted(filter_.values(), key=lambda name: name.start_pos): |
| d = name.tree_name.get_definition() |
| annassign = d.children[1] |
| if d.type == 'expr_stmt' and annassign.type == 'annassign': |
| if len(annassign.children) < 4: |
| default = None |
| else: |
| default = annassign.children[3] |
| param_names.append(DataclassParamName( |
| parent_context=cls.parent_context, |
| tree_name=name.tree_name, |
| annotation_node=annassign.children[1], |
| default_node=default, |
| )) |
| return [DataclassSignature(cls, param_names)] |
|
|
|
|
| class DataclassSignature(AbstractSignature): |
| def __init__(self, value, param_names): |
| super().__init__(value) |
| self._param_names = param_names |
|
|
| def get_param_names(self, resolve_stars=False): |
| return self._param_names |
|
|
|
|
| class DataclassParamName(BaseTreeParamName): |
| def __init__(self, parent_context, tree_name, annotation_node, default_node): |
| super().__init__(parent_context, tree_name) |
| self.annotation_node = annotation_node |
| self.default_node = default_node |
|
|
| def get_kind(self): |
| return Parameter.POSITIONAL_OR_KEYWORD |
|
|
| def infer(self): |
| if self.annotation_node is None: |
| return NO_VALUES |
| else: |
| return self.parent_context.infer_node(self.annotation_node) |
|
|
|
|
| class ItemGetterCallable(ValueWrapper): |
| def __init__(self, instance, args_value_set): |
| super().__init__(instance) |
| self._args_value_set = args_value_set |
|
|
| @repack_with_argument_clinic('item, /') |
| def py__call__(self, item_value_set): |
| value_set = NO_VALUES |
| for args_value in self._args_value_set: |
| lazy_values = list(args_value.py__iter__()) |
| if len(lazy_values) == 1: |
| |
| value_set |= item_value_set.get_item(lazy_values[0].infer(), None) |
| else: |
| value_set |= ValueSet([iterable.FakeList( |
| self._wrapped_value.inference_state, |
| [ |
| LazyKnownValues(item_value_set.get_item(lazy_value.infer(), None)) |
| for lazy_value in lazy_values |
| ], |
| )]) |
| return value_set |
|
|
|
|
| @argument_clinic('func, /') |
| def _functools_wraps(funcs): |
| return ValueSet(WrapsCallable(func) for func in funcs) |
|
|
|
|
| class WrapsCallable(ValueWrapper): |
| |
| |
| |
| @repack_with_argument_clinic('func, /') |
| def py__call__(self, funcs): |
| return ValueSet({Wrapped(func, self._wrapped_value) for func in funcs}) |
|
|
|
|
| class Wrapped(ValueWrapper, FunctionMixin): |
| def __init__(self, func, original_function): |
| super().__init__(func) |
| self._original_function = original_function |
|
|
| @property |
| def name(self): |
| return self._original_function.name |
|
|
| def get_signature_functions(self): |
| return [self] |
|
|
|
|
| @argument_clinic('*args, /', want_value=True, want_arguments=True) |
| def _operator_itemgetter(args_value_set, value, arguments): |
| return ValueSet([ |
| ItemGetterCallable(instance, args_value_set) |
| for instance in value.py__call__(arguments) |
| ]) |
|
|
|
|
| def _create_string_input_function(func): |
| @argument_clinic('string, /', want_value=True, want_arguments=True) |
| def wrapper(strings, value, arguments): |
| def iterate(): |
| for value in strings: |
| s = get_str_or_none(value) |
| if s is not None: |
| s = func(s) |
| yield compiled.create_simple_object(value.inference_state, s) |
| values = ValueSet(iterate()) |
| if values: |
| return values |
| return value.py__call__(arguments) |
| return wrapper |
|
|
|
|
| @argument_clinic('*args, /', want_callback=True) |
| def _os_path_join(args_set, callback): |
| if len(args_set) == 1: |
| string = '' |
| sequence, = args_set |
| is_first = True |
| for lazy_value in sequence.py__iter__(): |
| string_values = lazy_value.infer() |
| if len(string_values) != 1: |
| break |
| s = get_str_or_none(next(iter(string_values))) |
| if s is None: |
| break |
| if not is_first: |
| string += os.path.sep |
| string += s |
| is_first = False |
| else: |
| return ValueSet([compiled.create_simple_object(sequence.inference_state, string)]) |
| return callback() |
|
|
|
|
| _implemented = { |
| 'builtins': { |
| 'getattr': builtins_getattr, |
| 'type': builtins_type, |
| 'super': builtins_super, |
| 'reversed': builtins_reversed, |
| 'isinstance': builtins_isinstance, |
| 'next': builtins_next, |
| 'iter': builtins_iter, |
| 'staticmethod': builtins_staticmethod, |
| 'classmethod': builtins_classmethod, |
| 'property': builtins_property, |
| }, |
| 'copy': { |
| 'copy': _return_first_param, |
| 'deepcopy': _return_first_param, |
| }, |
| 'json': { |
| 'load': lambda value, arguments, callback: NO_VALUES, |
| 'loads': lambda value, arguments, callback: NO_VALUES, |
| }, |
| 'collections': { |
| 'namedtuple': collections_namedtuple, |
| }, |
| 'functools': { |
| 'partial': functools_partial, |
| 'partialmethod': functools_partialmethod, |
| 'wraps': _functools_wraps, |
| }, |
| '_weakref': { |
| 'proxy': _return_first_param, |
| }, |
| 'random': { |
| 'choice': _random_choice, |
| }, |
| 'operator': { |
| 'itemgetter': _operator_itemgetter, |
| }, |
| 'abc': { |
| |
| |
| 'abstractmethod': _return_first_param, |
| }, |
| 'typing': { |
| |
| |
| |
| '_alias': lambda value, arguments, callback: NO_VALUES, |
| |
| |
| 'runtime_checkable': lambda value, arguments, callback: NO_VALUES, |
| }, |
| 'dataclasses': { |
| |
| 'dataclass': _dataclass |
| }, |
| |
| |
| |
| 'attr': { |
| 'define': _dataclass, |
| 'frozen': _dataclass, |
| }, |
| 'attrs': { |
| 'define': _dataclass, |
| 'frozen': _dataclass, |
| }, |
| 'os.path': { |
| 'dirname': _create_string_input_function(os.path.dirname), |
| 'abspath': _create_string_input_function(os.path.abspath), |
| 'relpath': _create_string_input_function(os.path.relpath), |
| 'join': _os_path_join, |
| } |
| } |
|
|
|
|
| def get_metaclass_filters(func): |
| def wrapper(cls, metaclasses, is_instance): |
| for metaclass in metaclasses: |
| if metaclass.py__name__() == 'EnumMeta' \ |
| and metaclass.get_root_context().py__name__() == 'enum': |
| filter_ = ParserTreeFilter(parent_context=cls.as_context()) |
| return [DictFilter({ |
| name.string_name: EnumInstance(cls, name).name |
| for name in filter_.values() |
| })] |
| return func(cls, metaclasses, is_instance) |
| return wrapper |
|
|
|
|
| class EnumInstance(LazyValueWrapper): |
| def __init__(self, cls, name): |
| self.inference_state = cls.inference_state |
| self._cls = cls |
| self._name = name |
| self.tree_node = self._name.tree_name |
|
|
| @safe_property |
| def name(self): |
| return ValueName(self, self._name.tree_name) |
|
|
| def _get_wrapped_value(self): |
| n = self._name.string_name |
| if n.startswith('__') and n.endswith('__') or self._name.api_type == 'function': |
| inferred = self._name.infer() |
| if inferred: |
| return next(iter(inferred)) |
| o, = self.inference_state.builtins_module.py__getattribute__('object') |
| return o |
|
|
| value, = self._cls.execute_with_values() |
| return value |
|
|
| def get_filters(self, origin_scope=None): |
| yield DictFilter(dict( |
| name=compiled.create_simple_object(self.inference_state, self._name.string_name).name, |
| value=self._name, |
| )) |
| for f in self._get_wrapped_value().get_filters(): |
| yield f |
|
|
|
|
| def tree_name_to_values(func): |
| def wrapper(inference_state, context, tree_name): |
| if tree_name.value == 'sep' and context.is_module() and context.py__name__() == 'os.path': |
| return ValueSet({ |
| compiled.create_simple_object(inference_state, os.path.sep), |
| }) |
| return func(inference_state, context, tree_name) |
| return wrapper |
|
|