From: whitequark <cz@m-labs.hk>
Date: Fri, 21 Dec 2018 12:29:33 +0000 (+0000)
Subject: back.pysim: give numeric names to unnamed subfragments in VCD.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=305ee78eaf72e2bd6e2d58054b7a84bc7e4c2397;p=nmigen.git

back.pysim: give numeric names to unnamed subfragments in VCD.
---

diff --git a/nmigen/back/pysim.py b/nmigen/back/pysim.py
index 2d86d0a..bd90d7a 100644
--- a/nmigen/back/pysim.py
+++ b/nmigen/back/pysim.py
@@ -417,8 +417,11 @@ class Simulator:
         hierarchy = {}
         def add_fragment(fragment, scope=()):
             hierarchy[fragment] = scope
-            for subfragment, name in fragment.subfragments:
-                add_fragment(subfragment, (*scope, name))
+            for index, (subfragment, name) in enumerate(fragment.subfragments):
+                if name is None:
+                    add_fragment(subfragment, (*scope, "#{}".format(index)))
+                else:
+                    add_fragment(subfragment, (*scope, name))
         add_fragment(root_fragment)
 
         def add_signal(signal):