decorator dotted_names goto lookups.

jedi/evaluate/__init__.py

@@ -76,7 +76,6 @@ from jedi.evaluate import compiled
 from jedi.evaluate import precedence
 from jedi.evaluate import param
 from jedi.evaluate import helpers
-from jedi.evaluate.helpers import call_of_name
 
 
 class Evaluator(object):
@@ -281,7 +280,7 @@ class Evaluator(object):
         def_ = name.get_definition()
         if def_.type == 'expr_stmt' and name in def_.get_defined_names():
             return self.eval_statement(def_, name)
-        call = call_of_name(name)
+        call = helpers.call_of_name(name)
         return self.eval_element(call)
 
     def goto(self, name):
@@ -328,10 +327,19 @@ class Evaluator(object):
             return [name]
         elif isinstance(stmt, pr.Import):
             return imports.ImportWrapper(self, name).follow(is_goto=True)
+        elif par.type == 'dotted_name':  # Is a decorator.
+            index = par.children.index(name)
+            if index > 0:
+                new_dotted = helpers.deep_ast_copy(par)
+                new_dotted.children[index - 1:] = []
+                types = self.eval_element(new_dotted)
+                return resolve_implicit_imports(iterable.unite(
+                    self.find_types(typ, name, is_goto=True) for typ in types
+                ))
 
         scope = name.get_parent_scope()
         if pr.is_node(name.parent, 'trailer'):
-            call = call_of_name(name, cut_own_trailer=True)
+            call = helpers.call_of_name(name, cut_own_trailer=True)
             types = self.eval_element(call)
             return resolve_implicit_imports(iterable.unite(
                 self.find_types(typ, name, is_goto=True) for typ in types

test/completion/goto.py

@@ -202,3 +202,17 @@ def dec(dec_param=3):
 @dec(dec_param=5)
 def y():
     pass
+
+class ClassDec():
+    def class_func(func):
+        return func
+
+#! 14 ['def class_func']
+@ClassDec.class_func
+def x():
+    pass
+
+#! 2 ['class ClassDec']
+@ClassDec.class_func
+def z():
+    pass