A lot of small improvements.

jedi/api/__init__.py

@@ -137,7 +137,7 @@ class Script(object):
         parser = FastParser(self._grammar, self._source, self.path)
         save_parser(self.path, parser, pickling=False)
 
-        module = self._evaluator.wrap(parser.module)
+        module = self._evaluator.wrap(parser.module, parent_context=None)
         imports.add_module(self._evaluator, unicode(module.name), module)
         return parser.module
 
@@ -188,7 +188,9 @@ class Script(object):
             leaf = self._get_module().get_leaf_for_position(self._pos)
             if leaf is None:
                 return []
-        definitions = helpers.evaluate_goto_definition(self._evaluator, leaf)
+
+        context = self._evaluator.create_context(leaf)
+        definitions = helpers.evaluate_goto_definition(self._evaluator, context, leaf)
 
         names = [s.name for s in definitions]
         defs = [classes.Definition(self._evaluator, name) for name in names]
@@ -299,9 +301,11 @@ class Script(object):
         if call_signature_details is None:
             return []
 
+        context = self._evaluator.create_context(call_signature_details.bracket_leaf)
         with common.scale_speed_settings(settings.scale_call_signatures):
             definitions = helpers.cache_call_signatures(
                 self._evaluator,
+                context,
                 call_signature_details.bracket_leaf,
                 self._code_lines,
                 self._pos

jedi/api/classes.py

@@ -65,6 +65,7 @@ class BaseDefinition(object):
         """
         #self._definition = list(self._name.infer())[0]
         #self.is_keyword = isinstance(self._definition, keywords.Keyword)
+        self._definition = None
 
         # generate a path to the definition
         self._module = name.parent_context.get_root_context()
@@ -83,7 +84,7 @@ class BaseDefinition(object):
 
         :rtype: str or None
         """
-        return unicode(self._name)
+        return self._name.string_name
 
     @property
     def start_pos(self):
@@ -198,7 +199,7 @@ class BaseDefinition(object):
         >>> print(d.module_name)                       # doctest: +ELLIPSIS
         json
         """
-        return str(self._module.name)
+        return self._module.name.string_name
 
     def in_builtin_module(self):
         """Whether this is a builtin module."""
@@ -417,7 +418,7 @@ class Completion(BaseDefinition):
             if 'trailer' in node_names and 'argument' not in node_names:
                 append += '='
 
-        name = str(self._name)
+        name = self._name.string_name
         if like_name:
             name = name[self._like_name_length:]
         return name + append
@@ -450,7 +451,8 @@ class Completion(BaseDefinition):
     def description(self):
         """Provide a description of the completion object."""
         if self._definition is None:
-            return ''
+            return self._name.string_name
+
         t = self.type
         if t == 'statement' or t == 'import':
             desc = self._definition.get_code()
@@ -577,7 +579,7 @@ class Definition(use_metaclass(CachedMetaClass, BaseDefinition)):
             d = typ + ' ' + d.name.get_code()
         elif isinstance(d, iterable.Array):
             d = 'class ' + d.type
-        elif isinstance(d, (tree.Class, er.Class, er.Instance)):
+        elif isinstance(d, (tree.Class, er.ClassContext, er.Instance)):
             d = 'class ' + unicode(d.name)
         elif isinstance(d, (er.Function, tree.Function)):
             d = 'def ' + unicode(d.name)
@@ -589,6 +591,7 @@ class Definition(use_metaclass(CachedMetaClass, BaseDefinition)):
             if d.endswith(','):
                 d = d[:-1]  # Remove the comma.
         else:  # ExprStmt
+            return self._name.string_name
             try:
                 first_leaf = d.first_leaf()
             except AttributeError:

jedi/api/completion.py

@@ -33,7 +33,6 @@ def filter_names(evaluator, completion_names, stack, like_name):
                 and name.string_name.lower().startswith(like_name.lower()) \
                 or name.string_name.startswith(like_name):
 
-            print(name, name.infer())
             new = classes.Completion(
                 evaluator,
                 name,
@@ -71,7 +70,7 @@ def get_user_scope(module, position):
 class Completion:
     def __init__(self, evaluator, module, code_lines, position, call_signatures_method):
         self._evaluator = evaluator
-        self._module = evaluator.wrap(module)
+        self._module = evaluator.wrap(module, parent_context=None)
         self._code_lines = code_lines
 
         # The first step of completions is to get the name
@@ -175,7 +174,7 @@ class Completion:
         scope = get_user_scope(self._module, self._position)
         if not scope.is_scope():  # Might be a flow (if/while/etc).
             scope = scope.get_parent_scope()
-        scope = self._evaluator.wrap(scope)
+        scope = self._evaluator.create_context(scope)
         debug.dbg('global completion scope: %s', scope)
         filters = get_global_filters(
             self._evaluator,
@@ -222,6 +221,7 @@ class Completion:
         """
         Autocomplete inherited methods when overriding in child class.
         """
+        return
         leaf = self._module.get_leaf_for_position(self._position, include_prefixes=True)
         cls = leaf.get_parent_until(tree.Class)
         if isinstance(cls, (tree.Class, tree.Function)):

jedi/api/helpers.py

@@ -192,7 +192,7 @@ def get_possible_completion_types(grammar, stack):
     return keywords, grammar_labels
 
 
-def evaluate_goto_definition(evaluator, leaf):
+def evaluate_goto_definition(evaluator, context, leaf):
     if leaf.type == 'name':
         # In case of a name we can just use goto_definition which does all the
         # magic itself.
@@ -207,7 +207,7 @@ def evaluate_goto_definition(evaluator, leaf):
 
     if node is None:
         return []
-    return evaluator.eval_element(node)
+    return evaluator.eval_element(context, node)
 
 
 CallSignatureDetails = namedtuple(
@@ -288,7 +288,7 @@ def get_call_signature_details(module, position):
 
 
 @time_cache("call_signatures_validity")
-def cache_call_signatures(evaluator, bracket_leaf, code_lines, user_pos):
+def cache_call_signatures(evaluator, context, bracket_leaf, code_lines, user_pos):
     """This function calculates the cache key."""
     index = user_pos[0] - 1
 
@@ -304,5 +304,6 @@ def cache_call_signatures(evaluator, bracket_leaf, code_lines, user_pos):
         yield (module_path, before_bracket, bracket_leaf.start_pos)
     yield evaluate_goto_definition(
         evaluator,
+        context,
         bracket_leaf.get_previous_leaf()
     )

jedi/api/keywords.py

@@ -3,7 +3,7 @@ import keyword
 
 from jedi._compatibility import is_py3, is_py35
 from jedi import common
-from jedi.evaluate.helpers import FakeName
+from jedi.evaluate.filters import AbstractNameDefinition
 from jedi.parser.tree import Leaf
 try:
     from pydoc_data import topics as pydoc_topics
@@ -66,11 +66,17 @@ keywords_only_valid_as_leaf = (
 )
 
 
+class KeywordName(AbstractNameDefinition):
+    def __init__(self, evaluator, name):
+        self.string_name = name
+        self.parent_context = evaluator.BUILTINS
+
+
 class Keyword(object):
     type = 'completion_keyword'
 
     def __init__(self, evaluator, name, pos):
-        self.name = FakeName(name, self, pos)
+        self.name = KeywordName(evaluator, name)
         self.start_pos = pos
         self.parent = evaluator.BUILTINS
 

jedi/evaluate/__init__.py

@@ -109,7 +109,7 @@ class Evaluator(object):
         self.recursion_detector = recursion.RecursionDetector(self)
         self.execution_recursion_detector = recursion.ExecutionRecursionDetector(self)
 
-    def wrap(self, element, parent_context=None):
+    def wrap(self, element, parent_context):
         if isinstance(element, (er.Wrapper, er.InstanceElement,
             er.ModuleContext, er.FunctionExecution, er.Instance, compiled.CompiledObject)) or element is None:
             # TODO this is so ugly, please refactor.
@@ -118,7 +118,7 @@ class Evaluator(object):
         if element.type == 'classdef':
             return er.ClassContext(self, element, parent_context)
         elif element.type == 'funcdef':
-            return er.Function(self, element)
+            return er.Function(self, parent_context, element)
         elif element.type == 'lambda':
             return er.LambdaWrapper(self, element)
         elif element.type == 'file_input':
@@ -126,7 +126,7 @@ class Evaluator(object):
         else:
             return element
 
-    def find_types(self, scope, name_str, position=None, search_global=False,
+    def find_types(self, context, name_str, position=None, search_global=False,
                    is_goto=False):
         """
         This is the search function. The most important part to debug.
@@ -136,7 +136,7 @@ class Evaluator(object):
         :param position: Position of the last statement -> tuple of line, column
         :return: List of Names. Their parents are the types.
         """
-        f = finder.NameFinder(self, scope, name_str, position)
+        f = finder.NameFinder(self, context, name_str, position)
         filters = f.get_filters(search_global)
         if is_goto:
             return f.filter_name(filters)
@@ -341,8 +341,7 @@ class Evaluator(object):
         if isinstance(atom, tree.Name):
             # This is the first global lookup.
             stmt = atom.get_definition()
-            scope = stmt.get_parent_until(tree.IsScope, include_current=True)
-            if isinstance(scope, (tree.Function, er.FunctionExecution)):
+            if isinstance(context, er.FunctionExecution):
                 # Adjust scope: If the name is not in the suite, it's a param
                 # default or annotation and will be resolved as part of the
                 # parent scope.
@@ -355,7 +354,7 @@ class Evaluator(object):
                 # We only need to adjust the start_pos for statements, because
                 # there the name cannot be used.
                 stmt = atom
-            return self.find_types(scope, atom, stmt.start_pos, search_global=True)
+            return self.find_types(context, atom, stmt.start_pos, search_global=True)
         elif isinstance(atom, tree.Literal):
             return set([compiled.create(self, atom.eval())])
         else:
@@ -421,7 +420,7 @@ class Evaluator(object):
         if self.is_analysis:
             arguments.eval_all()
 
-        if obj.isinstance(er.Function):
+        if isinstance(obj, er.Function):
             obj = obj.get_decorated_func()
 
         debug.dbg('execute: %s %s', obj, arguments)
@@ -532,7 +531,15 @@ class Evaluator(object):
                                    search_global=True, is_goto=True)
 
     def create_context(self, node):
-        scope = node.get_parent_scope()
-        if scope.get_parent_scope() is not None:
-            raise NotImplementedError
-        return self.wrap(scope)
+        def from_scope(scope):
+            parent_context = None
+            parent_scope = scope.get_parent_scope()
+            if parent_scope is not None:
+                parent_context = from_scope(parent_scope)
+            return self.wrap(scope, parent_context=parent_context)
+
+        if node.is_scope():
+            scope = node
+        else:
+            scope = node.get_parent_scope()
+        return from_scope(scope)

jedi/evaluate/compiled/__init__.py

@@ -10,9 +10,10 @@ from functools import partial
 from jedi._compatibility import builtins as _builtins, unicode
 from jedi import debug
 from jedi.cache import underscore_memoization, memoize_method
-from jedi.parser.tree import Param, Base, Operator
+from jedi.parser.tree import Param, Operator
 from jedi.evaluate.helpers import FakeName
 from jedi.evaluate.filters import AbstractFilter, AbstractNameDefinition
+from jedi.evaluate.context import Context
 from . import fake
 
 
@@ -36,22 +37,27 @@ class CheckAttribute(object):
         return partial(self.func, instance)
 
 
-class CompiledObject(Base):
+class CompiledObject(Context):
     # comply with the parser
     start_pos = 0, 0
     path = None  # modules have this attribute - set it to None.
     used_names = {}  # To be consistent with modules.
 
-    def __init__(self, evaluator, obj, parent=None):
+    def __init__(self, evaluator, obj, parent_context=None):
         self._evaluator = evaluator
         self.obj = obj
-        self.parent = parent
+        self.parent_context = parent_context
+
+    def get_root_node(self):
+        # To make things a bit easier with filters we add this method here.
+        return self.get_root_context()
 
     @CheckAttribute
     def py__call__(self, params):
         if inspect.isclass(self.obj):
             from jedi.evaluate.representation import Instance
-            return set([Instance(self._evaluator, self, params)])
+            return set([self])
+            return set([Instance(self._evaluator, self.parent_context, self, params)])
         else:
             return set(self._execute_function(params))
 
@@ -206,7 +212,7 @@ class CompiledObject(Base):
             name = self._get_class().__name__
         except AttributeError:
             name = repr(self.obj)
-        return FakeName(name, self)
+        return CompiledContextName(self, name)
 
     def _execute_function(self, params):
         if self.type != 'funcdef':
@@ -267,15 +273,21 @@ class CompiledName(AbstractNameDefinition):
             name = None
         return '<%s: (%s).%s>' % (type(self).__name__, name, self.string_name)
 
-    def is_definition(self):
-        return True
-
     @underscore_memoization
     def infer(self):
-        module = self._compiled_obj.get_parent_until()
+        module = self._compiled_obj.get_root_context()
         return [_create_from_name(self._evaluator, module, self._compiled_obj, self.string_name)]
 
 
+class CompiledContextName(AbstractNameDefinition):
+    def __init__(self, parent_context, name):
+        self.string_name = name
+        self.parent_context = parent_context
+
+    def infer(self):
+        return [self.parent_context]
+
+
 class LazyNamesDict(object):
     """
     A names_dict instance for compiled objects, resembles the parser.tree.

jedi/evaluate/compiled/fake.py

@@ -11,7 +11,6 @@ import types
 from jedi._compatibility import is_py3, builtins, unicode, is_py34
 from jedi.parser import ParserWithRecovery, load_grammar
 from jedi.parser import tree as pt
-from jedi.evaluate.helpers import FakeName
 
 modules = {}
 
@@ -69,14 +68,14 @@ def _load_faked_module(module):
         if module_name == 'builtins' and not is_py3:
             # There are two implementations of `open` for either python 2/3.
             # -> Rename the python2 version (`look at fake/builtins.pym`).
-            open_func = search_scope(module, 'open')
-            open_func.children[1] = FakeName('open_python3')
-            open_func = search_scope(module, 'open_python2')
-            open_func.children[1] = FakeName('open')
+            open_func = _search_scope(module, 'open')
+            open_func.children[1].value = 'open_python3'
+            open_func = _search_scope(module, 'open_python2')
+            open_func.children[1].value = 'open'
         return module
 
 
-def search_scope(scope, obj_name):
+def _search_scope(scope, obj_name):
     for s in scope.subscopes:
         if str(s.name) == obj_name:
             return s
@@ -120,7 +119,7 @@ def _faked(module, obj, name):
     # for methods.
     if name is None:
         if inspect.isbuiltin(obj):
-            return search_scope(faked_mod, obj.__name__), faked_mod
+            return _search_scope(faked_mod, obj.__name__), faked_mod
         elif not inspect.isclass(obj):
             # object is a method or descriptor
             try:
@@ -128,22 +127,22 @@ def _faked(module, obj, name):
             except AttributeError:
                 return None, None
             else:
-                cls = search_scope(faked_mod, objclass.__name__)
+                cls = _search_scope(faked_mod, objclass.__name__)
                 if cls is None:
                     return None, None
-                return search_scope(cls, obj.__name__), faked_mod
+                return _search_scope(cls, obj.__name__), faked_mod
     else:
         if obj == module:
-            return search_scope(faked_mod, name), faked_mod
+            return _search_scope(faked_mod, name), faked_mod
         else:
             try:
                 cls_name = obj.__name__
             except AttributeError:
                 return None, None
-            cls = search_scope(faked_mod, cls_name)
+            cls = _search_scope(faked_mod, cls_name)
             if cls is None:
                 return None, None
-            return search_scope(cls, name), faked_mod
+            return _search_scope(cls, name), faked_mod
     return None, None
 
 

jedi/evaluate/filters.py

@@ -12,35 +12,48 @@ from jedi.common import to_list
 class AbstractNameDefinition(object):
     start_pos = None
     string_name = None
+    parent_context = None
 
     @abstractmethod
     def infer(self):
         raise NotImplementedError
 
+    def get_root_context(self):
+        if self.parent_context is None:
+            return self
+        return self.parent_context.get_root_context()
 
-class TreeNameDefinition(AbstractNameDefinition):
+    def __repr__(self):
+        if self.start_pos is None:
+            return '<%s: %s>' % (type(self).__name__, self.string_name)
+        return '<%s: %s@%s>' % (type(self).__name__, self.string_name, self.start_pos)
+
+
+class ContextName(AbstractNameDefinition):
     def __init__(self, parent_context, name):
         self.parent_context = parent_context
-        self._name = name
-
-    def get_parent_flow_context(self):
-        return self.parent_context
+        self.name = name
 
     @property
     def string_name(self):
-        return self._name.value
+        return self.name.value
 
     @property
     def start_pos(self):
-        return self._name.start_pos
+        return self.name.start_pos
+
+    def infer(self):
+        return [self.parent_context]
+
+
+class TreeNameDefinition(ContextName):
+    def get_parent_flow_context(self):
+        return self.parent_context
 
     def infer(self):
         # Refactor this, should probably be here.
         from jedi.evaluate.finder import _name_to_types
-        return _name_to_types(self.parent_context._evaluator, self.parent_context, self._name, None)
-
-    def __repr__(self):
-        return '<%s: %s@%s>' % (type(self).__name__, self.string_name, self.start_pos)
+        return _name_to_types(self.parent_context._evaluator, self.parent_context, self.name, None)
 
 
 class AbstractFilter(object):
@@ -102,8 +115,8 @@ class ParserTreeFilter(AbstractUsedNamesFilter):
     def _check_flows(self, names):
         for name in sorted(names, key=lambda name: name.start_pos, reverse=True):
             stmt = name.get_definition()
-            name_scope = self._evaluator.wrap(stmt.get_parent_scope())
             check = flow_analysis.UNSURE
+            #name_scope = self._evaluator.wrap(stmt.get_parent_scope())
             #check = flow_analysis.break_check(self._evaluator, name_scope,
             #                                  stmt, self._origin_scope)
             if check is not flow_analysis.UNREACHABLE:
@@ -181,8 +194,7 @@ def get_global_filters(evaluator, context, until_position, origin_scope):
                 until_position = None
                 in_func = True
 
-        node = context.parent_context
-        context = evaluator.wrap(node)
+        context = context.parent_context
 
     # Add builtins to the global scope.
     for filter in evaluator.BUILTINS.get_filters(search_global=True):

jedi/evaluate/finder.py

@@ -95,10 +95,10 @@ def filter_definition_names(names, origin, position=None):
 
 
 class NameFinder(object):
-    def __init__(self, evaluator, scope, name_str, position=None):
+    def __init__(self, evaluator, context, name_str, position=None):
         self._evaluator = evaluator
         # Make sure that it's not just a syntax tree node.
-        self.scope = evaluator.wrap(scope)
+        self.context = context
         self.name_str = name_str
         self.position = position
         self._found_predefined_if_name = None
@@ -123,7 +123,7 @@ class NameFinder(object):
             if not isinstance(self.name_str, (str, unicode)):  # TODO Remove?
                 if attribute_lookup:
                     analysis.add_attribute_error(self._evaluator,
-                                                 self.scope, self.name_str)
+                                                 self.context, self.name_str)
                 else:
                     message = ("NameError: name '%s' is not defined."
                                % self.name_str)
@@ -140,9 +140,9 @@ class NameFinder(object):
             origin_scope = None
 
         if search_global:
-            return get_global_filters(self._evaluator, self.scope, self.position, origin_scope)
+            return get_global_filters(self._evaluator, self.context, self.position, origin_scope)
         else:
-            return self.scope.get_filters(search_global, self.position, origin_scope=origin_scope)
+            return self.context.get_filters(search_global, self.position, origin_scope=origin_scope)
 
     def names_dict_lookup(self, names_dict, position):
         def get_param(scope, el):
@@ -167,7 +167,7 @@ class NameFinder(object):
             stmt = name.get_definition()
             name_scope = self._evaluator.wrap(stmt.get_parent_scope())
 
-            if isinstance(self.scope, er.Instance) and not isinstance(name_scope, er.Instance):
+            if isinstance(self.context, er.Instance) and not isinstance(name_scope, er.Instance):
                 # Instances should not be checked for positioning, because we
                 # don't know in which order the functions are called.
                 last_names.append(name)
@@ -210,7 +210,7 @@ class NameFinder(object):
                                 # deliver types.
                                 self._found_predefined_if_name = types
                             else:
-                                check = flow_analysis.break_check(self._evaluator, self.scope,
+                                check = flow_analysis.break_check(self._evaluator, self.context,
                                                                   origin_scope)
                                 if check is flow_analysis.UNREACHABLE:
                                     self._found_predefined_if_name = set()
@@ -249,7 +249,7 @@ class NameFinder(object):
             if names:
                 break
         debug.dbg('finder.filter_name "%s" in (%s): %s@%s', self.name_str,
-                  self.scope, names, self.position)
+                  self.context, names, self.position)
         return list(self._clean_names(names))
 
     def _clean_names(self, names):
@@ -311,13 +311,13 @@ class NameFinder(object):
 
         for name in names:
             new_types = name.infer()
-            if isinstance(self.scope, (er.ClassContext, er.Instance)) and attribute_lookup:
+            if isinstance(self.context, (er.ClassContext, er.Instance)) and attribute_lookup:
                 types |= set(self._resolve_descriptors(name, new_types))
             else:
                 types |= set(new_types)
-        if not names and isinstance(self.scope, er.Instance):
+        if not names and isinstance(self.context, er.Instance):
             # handling __getattr__ / __getattribute__
-            return self._check_getattr(self.scope)
+            return self._check_getattr(self.context)
 
         return types
 
@@ -336,7 +336,7 @@ class NameFinder(object):
             except AttributeError:
                 result.add(r)
             else:
-                result |= desc_return(self.scope)
+                result |= desc_return(self.context)
         return result
 
 
@@ -365,7 +365,7 @@ def _name_to_types(evaluator, context, name, scope):
         for_types = iterable.py__iter__types(evaluator, container_types, typ.children[3])
         types = check_tuple_assignments(evaluator, for_types, name)
     elif isinstance(typ, tree.Param):
-        types = _eval_param(evaluator, typ, scope)
+        types = _eval_param(evaluator, context, typ, scope)
     elif typ.isinstance(tree.ExprStmt):
         types = _remove_statements(evaluator, context, typ, name)
     elif typ.isinstance(tree.WithStmt):
@@ -373,7 +373,7 @@ def _name_to_types(evaluator, context, name, scope):
     elif isinstance(typ, tree.Import):
         types = imports.ImportWrapper(evaluator, name).follow()
     elif typ.isinstance(tree.Function, tree.Class):
-        types = [evaluator.wrap(typ)]
+        types = [evaluator.wrap(typ, parent_context=context)]
     elif typ.type == 'global_stmt':
         for s in _get_global_stmt_scopes(evaluator, typ, name):
             finder = NameFinder(evaluator, s, str(name))
@@ -427,7 +427,7 @@ def _remove_statements(evaluator, context, stmt, name):
     return types
 
 
-def _eval_param(evaluator, param, scope):
+def _eval_param(evaluator, context, param, scope):
     res_new = set()
     func = param.get_parent_scope()
 
@@ -441,8 +441,9 @@ def _eval_param(evaluator, param, scope):
         if isinstance(scope, er.InstanceElement):
             res_new.add(scope.instance)
         else:
-            inst = er.Instance(evaluator, evaluator.wrap(cls),
-                               Arguments(evaluator, ()), is_generated=True)
+            inst = er.Instance(evaluator, context.parent_context.parent_context, context.parent_context,
+                               Arguments(evaluator, context, ()),
+                               is_generated=True)
             res_new.add(inst)
         return res_new
 

jedi/evaluate/helpers.py

@@ -1,6 +1,7 @@
 import copy
 from itertools import chain
 
+from jedi.evaluate.filters import AbstractNameDefinition
 from jedi.parser import tree
 
 
@@ -172,6 +173,7 @@ class FakeName(tree.Name):
         In case is_definition is defined (not None), that bool value will be
         returned.
         """
+        raise NotImplementedError
         super(FakeName, self).__init__(name_str, start_pos)
         self.parent = parent
         self._is_definition = is_definition
@@ -186,15 +188,11 @@ class FakeName(tree.Name):
             return self._is_definition
 
 
-class LazyName(FakeName):
+class LazyName(AbstractNameDefinition):
     def __init__(self, name, parent_callback, is_definition=None):
-        super(LazyName, self).__init__(name, is_definition=is_definition)
+        # TODO remove is_definition
+        self.string_name = name
         self._parent_callback = parent_callback
 
-    @property
-    def parent(self):
+    def infer(self):
         return self._parent_callback()
-
-    @parent.setter
-    def parent(self, value):
-        pass  # Do nothing, super classes can try to set the parent.

jedi/evaluate/iterable.py

@@ -777,7 +777,7 @@ def check_array_instances(evaluator, instance):
 
     ai = _ArrayInstance(evaluator, instance)
     from jedi.evaluate import param
-    return param.Arguments(evaluator, [AlreadyEvaluated([ai])])
+    return param.Arguments(evaluator, instance, [AlreadyEvaluated([ai])])
 
 
 class _ArrayInstance(IterableWrapper):

jedi/evaluate/recursion.py

@@ -130,6 +130,9 @@ class ExecutionRecursionDetector(object):
         self.recursion_level -= 1
 
     def push_execution(self, execution):
+        self.execution_funcs.add(execution.base)
+        self.parent_execution_funcs.append(execution.base)
+        return True  # Remove
         in_par_execution_funcs = execution.base in self.parent_execution_funcs
         in_execution_funcs = execution.base in self.execution_funcs
         self.recursion_level += 1

jedi/evaluate/representation.py

@@ -56,38 +56,17 @@ from jedi.evaluate import param
 from jedi.evaluate import flow_analysis
 from jedi.evaluate import imports
 from jedi.evaluate.filters import ParserTreeFilter, FunctionExecutionFilter, \
-    GlobalNameFilter, DictFilter
+    GlobalNameFilter, DictFilter, ContextName
+from jedi.evaluate.context import Context
 
 
-class Context(object):
-    def __init__(self, evaluator, parent_context=None):
-        self._evaluator = evaluator
-        self.parent_context = parent_context
-
-    def get_parent_flow_context(self):
-        return self.parent_context
-
-    def get_root_context(self):
-        context = self
-        while True:
-            if context.parent_context is None:
-                return context
-            context = context.parent_context
-
-
-class FlowContext(Context):
-    def get_parent_flow_context(self):
-        if 1:
-            return self.parent_context
-
-
-class Executed(Context, tree.Base):
+class Executed(Context):
     """
     An instance is also an executable - because __init__ is called
     :param var_args: The param input array, consist of a parser node or a list.
     """
-    def __init__(self, evaluator, base, var_args=()):
-        self._evaluator = evaluator
+    def __init__(self, evaluator, parent_context, base, var_args):
+        super(Executed, self).__init__(evaluator, parent_context=parent_context)
         self.base = base
         self.var_args = var_args
 
@@ -97,25 +76,21 @@ class Executed(Context, tree.Base):
     def get_parent_until(self, *args, **kwargs):
         return tree.Base.get_parent_until(self, *args, **kwargs)
 
-    @common.safe_property
-    def parent(self):
-        return self.base.parent
-
 
 class Instance(use_metaclass(CachedMetaClass, Executed)):
     """
     This class is used to evaluate instances.
     """
-    def __init__(self, evaluator, base, var_args, is_generated=False):
-        super(Instance, self).__init__(evaluator, base, var_args)
+    def __init__(self, evaluator, parent_context, base, var_args, is_generated=False):
+        super(Instance, self).__init__(evaluator, parent_context, base, var_args)
         self.decorates = None
         # Generated instances are classes that are just generated by self
         # (No var_args) used.
         self.is_generated = is_generated
 
         self._init_execution = None
-        if base.name.get_code() in ['list', 'set'] \
-                and evaluator.BUILTINS == base.get_parent_until():
+        if base.name.string_name in ['list', 'set'] \
+                and evaluator.BUILTINS == parent_context.get_root_context():
             # compare the module path with the builtin name.
             self.var_args = iterable.check_array_instances(evaluator, self)
         elif not is_generated:
@@ -157,7 +132,7 @@ class Instance(use_metaclass(CachedMetaClass, Executed)):
             func = self.get_subscope_by_name('__init__')
         except KeyError:
             return None
-        return FunctionExecution(self._evaluator, func, self.var_args)
+        return FunctionExecution(self._evaluator, self, func, self.var_args)
 
     def _get_func_self_name(self, func):
         """
@@ -280,8 +255,7 @@ class Instance(use_metaclass(CachedMetaClass, Executed)):
     @property
     @underscore_memoization
     def name(self):
-        name = self.base.name
-        return helpers.FakeName(unicode(name), self, name.start_pos)
+        return ContextName(self, self.base.name)
 
     def __getattr__(self, name):
         if name not in ['start_pos', 'end_pos', 'get_imports', 'type',
@@ -400,6 +374,7 @@ def get_instance_el(evaluator, instance, var, is_class_var=False):
     in quite a lot of cases, which includes Nodes like ``power``, that need to
     know where a self name comes from for example.
     """
+    return var
     if isinstance(var, tree.Name):
         parent = get_instance_el(evaluator, instance, var.parent, is_class_var)
         return InstanceName(var, parent)
@@ -465,8 +440,7 @@ class InstanceElement(use_metaclass(CachedMetaClass, tree.Base)):
     @property
     @memoize_default()
     def name(self):
-        name = self.var.name
-        return helpers.FakeName(unicode(name), self, name.start_pos)
+        return ContextName(self.var.name, self)
 
     def __iter__(self):
         for el in self.var.__iter__():
@@ -519,7 +493,7 @@ class Wrapper(tree.Base):
     @underscore_memoization
     def name(self):
         name = self.base.name
-        return helpers.FakeName(unicode(name), self, name.start_pos)
+        return ContextName(self, name)
 
 
 class ClassContext(use_metaclass(CachedMetaClass, Context, Wrapper)):
@@ -574,7 +548,7 @@ class ClassContext(use_metaclass(CachedMetaClass, Context, Wrapper)):
             return [compiled.create(self._evaluator, object)]
 
     def py__call__(self, params):
-        return set([Instance(self._evaluator, self, params)])
+        return set([Instance(self._evaluator, self.parent_context, self, params)])
 
     def py__class__(self):
         return compiled.create(self._evaluator, type)
@@ -628,13 +602,13 @@ class ClassContext(use_metaclass(CachedMetaClass, Context, Wrapper)):
         return "<e%s of %s>" % (type(self).__name__, self.base)
 
 
-class Function(use_metaclass(CachedMetaClass, Wrapper)):
+class Function(use_metaclass(CachedMetaClass, Context, Wrapper)):
     """
     Needed because of decorators. Decorators are evaluated here.
     """
-    def __init__(self, evaluator, func, is_decorated=False):
+    def __init__(self, evaluator, parent_context, func, is_decorated=False):
         """ This should not be called directly """
-        self._evaluator = evaluator
+        super(Function, self).__init__(evaluator, parent_context)
         self.base = self.base_func = func
         self.is_decorated = is_decorated
         # A property that is set by the decorator resolution.
@@ -716,7 +690,7 @@ class Function(use_metaclass(CachedMetaClass, Wrapper)):
         if self.base.is_generator():
             return set([iterable.Generator(self._evaluator, self, params)])
         else:
-            return FunctionExecution(self._evaluator, self, params).get_return_types()
+            return FunctionExecution(self._evaluator, self.parent_context, self, params).get_return_types()
 
     @memoize_default()
     def py__annotations__(self):
@@ -767,24 +741,24 @@ class FunctionExecution(Executed):
     """
     type = 'funcdef'
 
-    def __init__(self, evaluator, base, *args, **kwargs):
-        super(FunctionExecution, self).__init__(evaluator, base, *args, **kwargs)
+    def __init__(self, evaluator, parent_context, base, var_args):
+        super(FunctionExecution, self).__init__(evaluator, parent_context, base, var_args)
         self._copy_dict = {}
-        self._original_function = funcdef = base.base_func
+        self._original_function = funcdef = base
         if isinstance(funcdef, mixed.MixedObject):
             # The extra information in mixed is not needed anymore. We can just
             # unpack it and give it the tree object.
             funcdef = funcdef.definition
 
         # Just overwrite the old version. We don't need it anymore.
-        funcdef = helpers.deep_ast_copy(funcdef, new_elements=self._copy_dict)
-        for child in funcdef.children:
-            if child.type not in ('operator', 'keyword'):
+        #funcdef = helpers.deep_ast_copy(funcdef, new_elements=self._copy_dict)
+        #for child in funcdef.children:
+            #if child.type not in ('operator', 'keyword'):
                 # Not all nodes are properly copied by deep_ast_copy.
-                child.parent = self
-        self.children = funcdef.children
-        self.names_dict = funcdef.names_dict
-        self._copied_funcdef = funcdef
+                #child.parent = self
+        #self.children = funcdef.children
+        #self.names_dict = funcdef.names_dict
+        #self._copied_funcdef = funcdef
 
     @memoize_default(default=set())
     @recursion.execution_recursion_decorator
@@ -940,6 +914,7 @@ class GlobalName(helpers.FakeName):
         We need to mark global names somehow. Otherwise they are just normal
         names that are not definitions.
         """
+        raise NotImplementedError
         super(GlobalName, self).__init__(name.value, name.parent,
                                          name.start_pos, is_definition=True)
 
@@ -1010,7 +985,7 @@ class ModuleContext(use_metaclass(CachedMetaClass, tree.Module, Wrapper)):
     @property
     @memoize_default()
     def name(self):
-        return helpers.FakeName(unicode(self.base.name), self, (1, 0))
+        return ContextName(self, self.base.name)
 
     def _get_init_directory(self):
         """
@@ -1101,6 +1076,7 @@ class ModuleContext(use_metaclass(CachedMetaClass, tree.Module, Wrapper)):
         if path is not None and path.endswith(os.path.sep + '__init__.py'):
             mods = pkgutil.iter_modules([os.path.dirname(path)])
             for module_loader, name, is_pkg in mods:
+                raise NotImplementedError
                 fake_n = helpers.FakeName(name)
                 # It's obviously a relative import to the current module.
                 imp = helpers.FakeImport(fake_n, self, level=1)

jedi/evaluate/stdlib.py

@@ -35,7 +35,7 @@ def execute(evaluator, obj, arguments):
     except AttributeError:
         pass
     else:
-        if obj.parent == evaluator.BUILTINS:
+        if obj.parent_context == evaluator.BUILTINS:
             module_name = 'builtins'
         elif isinstance(obj.parent, tree.Module):
             module_name = str(obj.parent.name)

test/run.py

@@ -189,16 +189,19 @@ class IntegrationTestCase(object):
                 parser = Parser(load_grammar(), string, start_symbol='eval_input')
                 parser.get_root_node().move(self.line_nr)
                 element = parser.get_parsed_node()
+                module = script._get_module()
+                # TODO remove
                 element.parent = jedi.api.completion.get_user_scope(
-                    script._get_module(),
+                    module,
                     (self.line_nr, self.column)
                 )
-                results = evaluator.eval_element(element)
+                module_context = evaluator.wrap(module, parent_context=None)
+                results = evaluator.eval_element(module_context, element)
                 if not results:
                     raise Exception('Could not resolve %s on line %s'
                                     % (match.string, self.line_nr - 1))
 
-                should_be |= set(Definition(evaluator, r) for r in results)
+                should_be |= set(Definition(evaluator, r.name) for r in results)
             debug.dbg('Finished getting types', color='YELLOW')
 
             # Because the objects have different ids, `repr`, then compare.