From 79eefa3417e09a8f9defaeafdb9f76d323385238 Mon Sep 17 00:00:00 2001
From: Jaen Saul <jaen@saul.ee>
Date: Fri, 19 Nov 2021 22:12:44 +0200
Subject: [PATCH] fix(mypy): Placeholder vars should have fullname set.

Otherwise the dmypy daemon will crash on an incremental re-run.
---
 lib/sqlalchemy/ext/mypy/apply.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/sqlalchemy/ext/mypy/apply.py b/lib/sqlalchemy/ext/mypy/apply.py
index cf5b4fda25..3b69568407 100644
--- a/lib/sqlalchemy/ext/mypy/apply.py
+++ b/lib/sqlalchemy/ext/mypy/apply.py
@@ -292,6 +292,7 @@ def _apply_placeholder_attr_to_class(
     else:
         type_ = AnyType(TypeOfAny.special_form)
     var = Var(attrname)
+    var._fullname = cls.fullname + "." + attrname
     var.info = cls.info
     var.type = type_
     cls.info.names[attrname] = SymbolTableNode(MDEF, var)
-- 
2.47.2