Fix a bug where parent_context was a value

jedi/inference/compiled/mixed.py

@@ -118,6 +118,7 @@ class MixedName(compiled.CompiledName):
             if parent_value is None:
                 parent_context = None
             else:
+                assert parent_value is not None
                 parent_context = parent_value.as_context()
 
             if parent_context is None or isinstance(parent_context, MixedContext):
@@ -130,7 +131,7 @@ class MixedName(compiled.CompiledName):
                 })
 
         # TODO use logic from compiled.CompiledObjectFilter
-        access_paths = self.parent_context.access_handle.getattr_paths(
+        access_paths = self._parent_value.access_handle.getattr_paths(
             self.string_name,
             default=None
         )
@@ -266,6 +267,8 @@ def _create(inference_state, access_handle, parent_context, *args):
     compiled_object = create_cached_compiled_object(
         inference_state,
         access_handle,
+        # TODO It looks like we have to use the compiled object as a parent context.
+        #      Why is that?
         parent_context=None if parent_context is None
                        else parent_context.compiled_object.as_context()  # noqa
     )

jedi/inference/compiled/value.py

@@ -296,9 +296,10 @@ class CompiledObject(Value):
 
 
 class CompiledName(AbstractNameDefinition):
-    def __init__(self, inference_state, parent_context, name):
+    def __init__(self, inference_state, parent_value, name):
         self._inference_state = inference_state
-        self.parent_context = parent_context
+        self.parent_context = parent_value.as_context()
+        self._parent_value = parent_value
         self.string_name = name
 
     def py__doc__(self):
@@ -336,7 +337,7 @@ class CompiledName(AbstractNameDefinition):
     @underscore_memoization
     def infer(self):
         return ValueSet([_create_from_name(
-            self._inference_state, self.parent_context, self.string_name
+            self._inference_state, self._parent_value, self.string_name
         )])
 
 
@@ -484,7 +485,11 @@ class CompiledObjectFilter(AbstractFilter):
         return names
 
     def _create_name(self, name):
-        return self.name_class(self._inference_state, self.compiled_object, name)
+        return self.name_class(
+            self._inference_state,
+            self.compiled_object,
+            name
+        )
 
     def __repr__(self):
         return "<%s: %s>" % (self.__class__.__name__, self.compiled_object)

jedi/inference/value/instance.py

@@ -409,9 +409,11 @@ class AnonymousInstance(_BaseTreeInstance):
 
 class CompiledInstanceName(compiled.CompiledName):
     def __init__(self, inference_state, instance, klass, name):
+        parent_value = klass.parent_context.get_value()
+        assert parent_value is not None, "How? Please reproduce and report"
         super(CompiledInstanceName, self).__init__(
             inference_state,
-            klass.parent_context,
+            parent_value,
             name.string_name
         )
         self._instance = instance