From bef2052c1e883e9c539368ad1bfad354df4c4608 Mon Sep 17 00:00:00 2001
From: Catherine <whitequark@whitequark.org>
Date: Mon, 27 Feb 2023 22:31:17 +0000
Subject: [PATCH] hdl.ast: implement `Value.__pos__`.

---
 amaranth/hdl/ast.py   | 3 +++
 tests/test_hdl_ast.py | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/amaranth/hdl/ast.py b/amaranth/hdl/ast.py
index 6a6cbee..a97b90f 100644
--- a/amaranth/hdl/ast.py
+++ b/amaranth/hdl/ast.py
@@ -166,6 +166,9 @@ class Value(metaclass=ABCMeta):
     def __bool__(self):
         raise TypeError("Attempted to convert Amaranth value to Python boolean")
 
+    def __pos__(self):
+        return self
+
     def __invert__(self):
         return Operator("~", [self])
     def __neg__(self):
diff --git a/tests/test_hdl_ast.py b/tests/test_hdl_ast.py
index 38502e1..6bc7f49 100644
--- a/tests/test_hdl_ast.py
+++ b/tests/test_hdl_ast.py
@@ -397,6 +397,9 @@ class OperatorTestCase(FHDLTestCase):
         self.assertEqual(repr(v), "(s (const 4'd1))")
         self.assertEqual(v.shape(), signed(4))
 
+    def test_pos(self):
+        self.assertRepr(+Const(10), "(const 4'd10)")
+
     def test_neg(self):
         v1 = -Const(0, unsigned(4))
         self.assertEqual(repr(v1), "(- (const 4'd0))")