BUG: repr for Cal objects (#217) (#1137)

Co-authored-by: JHM Darbyshire (M1) <[email protected]>

Author: attack68

python/tests/serialization/test_repr.py

@@ -1,7 +1,7 @@
 import pytest
 from rateslib import dt
 from rateslib.dual import Dual, Dual2
-from rateslib.scheduling import Adjuster, Frequency, Imm, NamedCal, RollDay, Schedule, StubInference
+from rateslib.scheduling import Adjuster, Frequency, Imm, Cal, UnionCal, NamedCal, RollDay, Schedule, StubInference
 from rateslib.splines import PPSplineDual, PPSplineDual2, PPSplineF64
 
 
@@ -35,6 +35,9 @@
             ),
             "PPSplineDual2",
         ),
+        (Cal([],[]), "Cal"),
+        (UnionCal([Cal([],[]), Cal([],[])], []), "UnionCal"),
+        (NamedCal("tgt,ldn|fed"), "NamedCal:'tgt,ldn|fed'"),
     ],
 )
 def test_repr_strings(obj, expected) -> None:

rust/scheduling/py/calendar.rs

@@ -382,6 +382,10 @@ impl Cal {
             Calendar::NamedCal(c) => *self == c,
         }
     }
+
+    fn __repr__(&self) -> String {
+        format!("<rl.Cal at {:p}>", self)
+    }
 }
 
 #[pymethods]
@@ -591,6 +595,10 @@ impl UnionCal {
             Calendar::NamedCal(c) => *self == c,
         }
     }
+
+    fn __repr__(&self) -> String {
+        format!("<rl.UnionCal at {:p}>", self)
+    }
 }
 
 #[pymethods]
@@ -790,6 +798,10 @@ impl NamedCal {
             Calendar::NamedCal(c) => *self == c,
         }
     }
+
+    fn __repr__(&self) -> String {
+        format!("<rl.NamedCal:'{}' at {:p}>", self.name, self)
+    }
 }
 
 #[cfg(test)]