101 lines
3.1 KiB
Python
101 lines
3.1 KiB
Python
"""
|
|
This module is about generics, like the `int` in `List[int]`. It's not about
|
|
the Generic class.
|
|
"""
|
|
|
|
from jedi import debug
|
|
from jedi.cache import memoize_method
|
|
from jedi.inference.utils import to_tuple
|
|
from jedi.inference.base_value import ValueSet, NO_VALUES
|
|
from jedi.inference.value.iterable import SequenceLiteralValue
|
|
from jedi.inference.helpers import is_string
|
|
|
|
|
|
def _resolve_forward_references(context, value_set):
|
|
for value in value_set:
|
|
if is_string(value):
|
|
from jedi.inference.gradual.annotation import _get_forward_reference_node
|
|
node = _get_forward_reference_node(context, value.get_safe_value())
|
|
if node is not None:
|
|
for c in context.infer_node(node):
|
|
yield c
|
|
else:
|
|
yield value
|
|
|
|
|
|
class _AbstractGenericManager(object):
|
|
def get_index_and_execute(self, index):
|
|
try:
|
|
return self[index].execute_annotation()
|
|
except IndexError:
|
|
debug.warning('No param #%s found for annotation %s', index, self)
|
|
return NO_VALUES
|
|
|
|
def get_type_hint(self):
|
|
return '[%s]' % ', '.join(t.get_type_hint(add_class_info=False) for t in self.to_tuple())
|
|
|
|
|
|
class LazyGenericManager(_AbstractGenericManager):
|
|
def __init__(self, context_of_index, index_value):
|
|
self._context_of_index = context_of_index
|
|
self._index_value = index_value
|
|
|
|
@memoize_method
|
|
def __getitem__(self, index):
|
|
return self._tuple()[index]()
|
|
|
|
def __len__(self):
|
|
return len(self._tuple())
|
|
|
|
@memoize_method
|
|
@to_tuple
|
|
def _tuple(self):
|
|
def lambda_scoping_in_for_loop_sucks(lazy_value):
|
|
return lambda: ValueSet(_resolve_forward_references(
|
|
self._context_of_index,
|
|
lazy_value.infer()
|
|
))
|
|
|
|
if isinstance(self._index_value, SequenceLiteralValue):
|
|
for lazy_value in self._index_value.py__iter__(contextualized_node=None):
|
|
yield lambda_scoping_in_for_loop_sucks(lazy_value)
|
|
else:
|
|
yield lambda: ValueSet(_resolve_forward_references(
|
|
self._context_of_index,
|
|
ValueSet([self._index_value])
|
|
))
|
|
|
|
@to_tuple
|
|
def to_tuple(self):
|
|
for callable_ in self._tuple():
|
|
yield callable_()
|
|
|
|
def is_homogenous_tuple(self):
|
|
if isinstance(self._index_value, SequenceLiteralValue):
|
|
entries = self._index_value.get_tree_entries()
|
|
if len(entries) == 2 and entries[1] == '...':
|
|
return True
|
|
return False
|
|
|
|
def __repr__(self):
|
|
return '<LazyG>[%s]' % (', '.join(repr(x) for x in self.to_tuple()))
|
|
|
|
|
|
class TupleGenericManager(_AbstractGenericManager):
|
|
def __init__(self, tup):
|
|
self._tuple = tup
|
|
|
|
def __getitem__(self, index):
|
|
return self._tuple[index]
|
|
|
|
def __len__(self):
|
|
return len(self._tuple)
|
|
|
|
def to_tuple(self):
|
|
return self._tuple
|
|
|
|
def is_homogenous_tuple(self):
|
|
return False
|
|
|
|
def __repr__(self):
|
|
return '<TupG>[%s]' % (', '.join(repr(x) for x in self.to_tuple()))
|