Remove underscore_memoization caching method

jedi/cache.py

@@ -20,38 +20,6 @@ from parso.cache import parser_cache
 _time_caches = {}
 
 
-def underscore_memoization(func):
-    """
-    Decorator for methods::
-
-        class A(object):
-            def x(self):
-                if self._x:
-                    self._x = 10
-                return self._x
-
-    Becomes::
-
-        class A(object):
-            @underscore_memoization
-            def x(self):
-                return 10
-
-    A now has an attribute ``_x`` written by this decorator.
-    """
-    name = '_' + func.__name__
-
-    def wrapper(self):
-        try:
-            return getattr(self, name)
-        except AttributeError:
-            result = func(self)
-            setattr(self, name, result)
-            return result
-
-    return wrapper
-
-
 def clear_time_caches(delete_all=False):
     """ Jedi caches many things, that should be completed after each completion
     finishes.

jedi/inference/compiled/mixed.py

@@ -10,15 +10,14 @@ from jedi.parser_utils import get_cached_code_lines
 
 from jedi._compatibility import unwrap
 from jedi import settings
+from jedi.cache import memoize_method
 from jedi.inference import compiled
-from jedi.cache import underscore_memoization
 from jedi.file_io import FileIO
 from jedi.inference.base_value import ValueSet, ValueWrapper, NO_VALUES
 from jedi.inference.value import ModuleValue
 from jedi.inference.cache import inference_state_function_cache, \
     inference_state_method_cache
-from jedi.inference.compiled.access import compiled_objects_cache, \
+from jedi.inference.compiled.access import ALLOWED_GETITEM_TYPES, get_api_type
-    ALLOWED_GETITEM_TYPES, get_api_type
 from jedi.inference.compiled.value import create_cached_compiled_object, create_from_name
 from jedi.inference.gradual.conversion import to_stub
 from jedi.inference.context import CompiledContext, CompiledModuleContext, \
@@ -115,7 +114,7 @@ class MixedName(compiled.CompiledName):
             return 0, 0
         return values[0].name.start_pos
 
-    @underscore_memoization
+    @memoize_method
     def infer(self):
         # TODO use logic from compiled.CompiledObjectFilter
         access_paths = self._parent_value.access_handle.getattr_paths(
@@ -258,6 +257,7 @@ def _find_syntax_node_name(inference_state, python_object):
     return module_node, tree_node, file_io, code_lines
 
 
+@inference_state_function_cache()
 def _create(inference_state, compiled_object, module_context):
     # TODO accessing this is bad, but it probably doesn't matter that much,
     # because we're working with interpreteters only here.

jedi/inference/compiled/value.py

@@ -7,7 +7,7 @@ from functools import partial
 from jedi import debug
 from jedi.inference.utils import to_list
 from jedi._compatibility import force_unicode, Parameter, cast_path
-from jedi.cache import underscore_memoization, memoize_method
+from jedi.cache import memoize_method
 from jedi.inference.filters import AbstractFilter
 from jedi.inference.names import AbstractNameDefinition, ValueNameMixin, \
     ParamNameInterface
@@ -139,7 +139,7 @@ class CompiledObject(Value):
     def __repr__(self):
         return '<%s: %s>' % (self.__class__.__name__, self.access_handle.get_repr())
 
-    @underscore_memoization
+    @memoize_method
     def _parse_function_doc(self):
         doc = self.py__doc__()
         if doc is None:
@@ -151,15 +151,6 @@ class CompiledObject(Value):
     def api_type(self):
         return self.access_handle.get_api_type()
 
-    @underscore_memoization
-    def _cls(self):
-        """
-        We used to limit the lookups for instantiated objects like list(), but
-        this is not the case anymore. Python itself
-        """
-        # Ensures that a CompiledObject is returned that is not an instance (like list)
-        return self
-
     def get_filters(self, is_instance=False, origin_scope=None):
         yield self._ensure_one_filter(is_instance)
 
@@ -361,7 +352,7 @@ class CompiledName(AbstractNameDefinition):
             return "instance"
         return next(iter(api)).api_type
 
-    @underscore_memoization
+    @memoize_method
     def infer(self):
         return ValueSet([create_from_name(
             self._inference_state, self._parent_value, self.string_name