1
0
forked from VimPlug/jedi
Files
jedi-fork/jedi/inference/lazy_value.py
2019-08-15 01:24:28 +02:00

60 lines
1.6 KiB
Python

from jedi.inference.base_value import ContextSet, NO_VALUES
from jedi.common.utils import monkeypatch
class AbstractLazyContext(object):
def __init__(self, data):
self.data = data
def __repr__(self):
return '<%s: %s>' % (self.__class__.__name__, self.data)
def infer(self):
raise NotImplementedError
class LazyKnownContext(AbstractLazyContext):
"""data is a value."""
def infer(self):
return ContextSet([self.data])
class LazyKnownContexts(AbstractLazyContext):
"""data is a ContextSet."""
def infer(self):
return self.data
class LazyUnknownContext(AbstractLazyContext):
def __init__(self):
super(LazyUnknownContext, self).__init__(None)
def infer(self):
return NO_VALUES
class LazyTreeContext(AbstractLazyContext):
def __init__(self, value, node):
super(LazyTreeContext, self).__init__(node)
self.value = value
# We need to save the predefined names. It's an unfortunate side effect
# that needs to be tracked otherwise results will be wrong.
self._predefined_names = dict(value.predefined_names)
def infer(self):
with monkeypatch(self.value, 'predefined_names', self._predefined_names):
return self.value.infer_node(self.data)
def get_merged_lazy_value(lazy_values):
if len(lazy_values) > 1:
return MergedLazyContexts(lazy_values)
else:
return lazy_values[0]
class MergedLazyContexts(AbstractLazyContext):
"""data is a list of lazy values."""
def infer(self):
return ContextSet.from_sets(l.infer() for l in self.data)