lib.memory: expand Memory.Init.__repr__().

Display `shape` and `depth` also. `depth` is redundant although useful
for ease of reading (there are always `depth` elements shown), but
`shape` was just lost.

Author: whitequark

amaranth/lib/memory.py

@@ -117,7 +117,7 @@ def __len__(self):
             return self._depth
 
         def __repr__(self):
-            return f"Memory.Init({self._elems!r})"
+            return f"Memory.Init({self._elems!r}, shape={self._shape!r}, depth={self._depth})"
 
 
     def __init__(self, *, shape, depth, init, attrs=None, src_loc_at=0):

tests/test_lib_memory.py

@@ -290,7 +290,7 @@ def test_constructor(self):
         self.assertIsInstance(m.init, memory.Memory.Init)
         self.assertEqual(list(m.init), [1, 2, 3, 0])
         self.assertEqual(m.init._raw, [1, 2, 3, 0])
-        self.assertRepr(m.init, "Memory.Init([1, 2, 3, 0])")
+        self.assertRepr(m.init, "Memory.Init([1, 2, 3, 0], shape=8, depth=4)")
         self.assertEqual(m.r_ports, ())
         self.assertEqual(m.w_ports, ())