lib.io: Add missing __repr__ to signature type.

Author: wanda-phi

amaranth/lib/io.py

@@ -114,6 +114,10 @@ def __eq__(self, other):
                     self.dir == other.dir and
                     self.xdr == other.xdr)
 
+        def __repr__(self):
+            xdr = f", xdr={self.xdr}" if self.xdr != 0 else ""
+            return f"Pin.Signature({self.width}, dir={self.dir!r}{xdr})"
+
         def create(self, *, path=None, src_loc_at=0):
             return Pin(self.width, self.dir, xdr=self.xdr, path=path, src_loc_at=1 + src_loc_at)
 
@@ -128,11 +132,11 @@ def __init__(self, width, dir, *, xdr=0, name=None, path=None, src_loc_at=0):
     @property
     def width(self):
         return self.signature.width
-    
+
     @property
     def dir(self):
         return self.signature.dir
-    
+
     @property
     def xdr(self):
         return self.signature.xdr

tests/test_lib_io.py

@@ -199,6 +199,16 @@ def test_signature_io(self):
         })
 
 
+class PinSignatureReprCase(FHDLTestCase):
+    def test_repr(self):
+        sig_0 = Pin.Signature(1, dir="i")
+        self.assertRepr(sig_0, "Pin.Signature(1, dir='i')")
+        sig_0 = Pin.Signature(2, dir="o", xdr=1)
+        self.assertRepr(sig_0, "Pin.Signature(2, dir='o', xdr=1)")
+        sig_0 = Pin.Signature(3, dir="io", xdr=2)
+        self.assertRepr(sig_0, "Pin.Signature(3, dir='io', xdr=2)")
+
+
 class PinTestCase(FHDLTestCase):
     def test_attributes(self):
         pin = Pin(2, dir="io", xdr=2)
@@ -208,4 +218,3 @@ def test_attributes(self):
         self.assertEqual(pin.signature.width, 2)
         self.assertEqual(pin.signature.dir,   "io")
         self.assertEqual(pin.signature.xdr,   2)
-