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forked from VimPlug/jedi
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jedi-fork/jedi/inference/gradual/generics.py
2019-12-08 20:35:00 +01:00

75 lines
2.3 KiB
Python

from jedi.cache import memoize_method
from jedi.inference.utils import to_list
from jedi.inference.base_value import ValueSet
from jedi.inference.value.iterable import SequenceLiteralValue
from jedi.inference.helpers import is_string
def iter_over_arguments(maybe_tuple_value, defining_context):
def iterate():
if isinstance(maybe_tuple_value, SequenceLiteralValue):
for lazy_value in maybe_tuple_value.py__iter__(contextualized_node=None):
yield lazy_value.infer()
else:
yield ValueSet([maybe_tuple_value])
for value_set in iterate():
yield ValueSet(_resolve_forward_references(defining_context, value_set))
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 LazyGenericManager(object):
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._list()[index]()
def __len__(self):
return len(self._list())
@memoize_method
@to_list
def _list(self):
if isinstance(self._index_value, SequenceLiteralValue):
for lazy_value in self._index_value.py__iter__(contextualized_node=None):
yield lambda: _resolve_forward_references(
self._context_of_index,
lazy_value.infer()
)
else:
yield lambda: ValueSet([
_resolve_forward_references(self._context_of_index, self._index_value)
])
def __iter__(self):
return iter(self._iterate())
class ListGenericManager(object):
def __init__(self, lst):
self._lst = lst
def __getitem__(self, index):
return self._lst[index]
def __len__(self):
return len(self._lst)
def __iter__(self):
for value_set in self._lst:
yield lambda: value_set