Add include_setitem for get_defined_names, is_definition and get_definition

CHANGELOG.rst

@@ -3,6 +3,11 @@
 Changelog
 ---------
 
+0.5.2 (2019-XX-XX)
+++++++++++++++++++
+
+- Add include_setitem to get_definition/is_definition and get_defined_names (#66)
+
 0.5.1 (2019-07-13)
 ++++++++++++++++++
 

parso/python/tree.py

@@ -200,13 +200,13 @@ class Name(_LeafWithoutNewlines):
         return "<%s: %s@%s,%s>" % (type(self).__name__, self.value,
                                    self.line, self.column)
 
-    def is_definition(self):
+    def is_definition(self, include_setitem=False):
         """
         Returns True if the name is being defined.
         """
-        return self.get_definition() is not None
+        return self.get_definition(include_setitem=include_setitem) is not None
 
-    def get_definition(self, import_name_always=False):
+    def get_definition(self, import_name_always=False, include_setitem=False):
         """
         Returns None if there's on definition for a name.
 
@@ -234,7 +234,7 @@ class Name(_LeafWithoutNewlines):
             if node.type == 'suite':
                 return None
             if node.type in _GET_DEFINITION_TYPES:
-                if self in node.get_defined_names():
+                if self in node.get_defined_names(include_setitem):
                     return node
                 if import_name_always and node.type in _IMPORTS:
                     return node
@@ -772,8 +772,8 @@ class ForStmt(Flow):
         """
         return self.children[3]
 
-    def get_defined_names(self):
+    def get_defined_names(self, include_setitem=False):
-        return _defined_names(self.children[1])
+        return _defined_names(self.children[1], include_setitem)
 
 
 class TryStmt(Flow):
@@ -796,7 +796,7 @@ class WithStmt(Flow):
     type = 'with_stmt'
     __slots__ = ()
 
-    def get_defined_names(self):
+    def get_defined_names(self, include_setitem=False):
         """
         Returns the a list of `Name` that the with statement defines. The
         defined names are set after `as`.
@@ -805,7 +805,7 @@ class WithStmt(Flow):
         for with_item in self.children[1:-2:2]:
             # Check with items for 'as' names.
             if with_item.type == 'with_item':
-                names += _defined_names(with_item.children[2])
+                names += _defined_names(with_item.children[2], include_setitem)
         return names
 
     def get_test_node_from_name(self, name):
@@ -846,7 +846,7 @@ class ImportFrom(Import):
     type = 'import_from'
     __slots__ = ()
 
-    def get_defined_names(self):
+    def get_defined_names(self, include_setitem=False):
         """
         Returns the a list of `Name` that the import defines. The
         defined names are set after `import` or in case an alias - `as` - is
@@ -917,7 +917,7 @@ class ImportName(Import):
     type = 'import_name'
     __slots__ = ()
 
-    def get_defined_names(self):
+    def get_defined_names(self, include_setitem=False):
         """
         Returns the a list of `Name` that the import defines. The defined names
         is always the first name after `import` or in case an alias - `as` - is
@@ -1018,7 +1018,7 @@ class YieldExpr(PythonBaseNode):
     __slots__ = ()
 
 
-def _defined_names(current):
+def _defined_names(current, include_setitem):
     """
     A helper function to find the defined names in statements, for loops and
     list comprehensions.
@@ -1026,15 +1026,15 @@ def _defined_names(current):
     names = []
     if current.type in ('testlist_star_expr', 'testlist_comp', 'exprlist', 'testlist'):
         for child in current.children[::2]:
-            names += _defined_names(child)
+            names += _defined_names(child, include_setitem)
     elif current.type in ('atom', 'star_expr'):
-        names += _defined_names(current.children[1])
+        names += _defined_names(current.children[1], include_setitem)
     elif current.type in ('power', 'atom_expr'):
         if current.children[-2] != '**':  # Just if there's no operation
             trailer = current.children[-1]
             if trailer.children[0] == '.':
                 names.append(trailer.children[1])
-            elif trailer.children[0] == '[':
+            elif trailer.children[0] == '[' and include_setitem:
                 for node in current.children[-2::-1]:
                     if node.type == 'trailer':
                         names.append(node.children[1])
@@ -1051,18 +1051,18 @@ class ExprStmt(PythonBaseNode, DocstringMixin):
     type = 'expr_stmt'
     __slots__ = ()
 
-    def get_defined_names(self):
+    def get_defined_names(self, include_setitem=False):
         """
         Returns a list of `Name` defined before the `=` sign.
         """
         names = []
         if self.children[1].type == 'annassign':
-            names = _defined_names(self.children[0])
+            names = _defined_names(self.children[0], include_setitem)
         return [
             name
             for i in range(0, len(self.children) - 2, 2)
             if '=' in self.children[i + 1].value
-            for name in _defined_names(self.children[i])
+            for name in _defined_names(self.children[i], include_setitem)
         ] + names
 
     def get_rhs(self):
@@ -1155,7 +1155,7 @@ class Param(PythonBaseNode):
         else:
             return self._tfpdef()
 
-    def get_defined_names(self):
+    def get_defined_names(self, include_setitem=False):
         return [self.name]
 
     @property
@@ -1213,12 +1213,12 @@ class SyncCompFor(PythonBaseNode):
     type = 'sync_comp_for'
     __slots__ = ()
 
-    def get_defined_names(self):
+    def get_defined_names(self, include_setitem=False):
         """
         Returns the a list of `Name` that the comprehension defines.
         """
         # allow async for
-        return _defined_names(self.children[1])
+        return _defined_names(self.children[1], include_setitem)
 
 
 # This is simply here so an older Jedi version can work with this new parso