From: whitequark <whitequark@whitequark.org>
Date: Tue, 21 Jul 2020 02:53:29 +0000 (+0000)
Subject: compat.fhdl.bitcontainer: fix value_bits_sign().
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2d2f4720720c03bc381d14b56c626fdbd1bc2351;p=nmigen.git

compat.fhdl.bitcontainer: fix value_bits_sign().

This function was broken in commit 659b0e81; some downstream code
expects bits_sign to be e.g. indexable.
---

diff --git a/nmigen/compat/fhdl/bitcontainer.py b/nmigen/compat/fhdl/bitcontainer.py
index 648b129..4b91572 100644
--- a/nmigen/compat/fhdl/bitcontainer.py
+++ b/nmigen/compat/fhdl/bitcontainer.py
@@ -18,4 +18,4 @@ def bits_for(n, require_sign_bit=False):
 
 @deprecated("instead of `value_bits_sign(v)`, use `v.shape()`")
 def value_bits_sign(v):
-    return ast.Value.cast(v).shape()
+    return tuple(ast.Value.cast(v).shape())