From: whitequark <whitequark@whitequark.org>
Date: Wed, 12 Dec 2018 10:08:56 +0000 (+0000)
Subject: fhdl.ast.Signal: assign an internal name if tracer fails.
X-Git-Tag: working~341
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1d46ffb591f0ca43a76b8ff0fafb61bf67a7490b;p=nmigen.git

fhdl.ast.Signal: assign an internal name if tracer fails.
---

diff --git a/nmigen/fhdl/ast.py b/nmigen/fhdl/ast.py
index 198b5c4..b78021f 100644
--- a/nmigen/fhdl/ast.py
+++ b/nmigen/fhdl/ast.py
@@ -505,7 +505,10 @@ class Signal(Value, DUID):
         super().__init__()
 
         if name is None:
-            name = tracer.get_var_name()
+            try:
+                name = tracer.get_var_name()
+            except tracer.NameNotFound:
+                name = "$signal"
         self.name = name
 
         if isinstance(bits_sign, int):