Add __pos__ to PyComplex

Author: minhnhdo

tests/snippets/builtin_complex.py

@@ -57,6 +57,13 @@
 assert complex(1) ** 2 == 1
 assert 2 ** complex(2) == 4
 
+# __pos__
+
+assert +complex(0, 1) == complex(0, 1)
+assert +complex(1, 0) == complex(1, 0)
+assert +complex(1, -1) == complex(1, -1)
+assert +complex(0, 0) == complex(0, 0)
+
 # __neg__
 
 assert -complex(1, -1) == complex(-1, 1)

vm/src/obj/objcomplex.rs

@@ -183,6 +183,11 @@ impl PyComplex {
         self.divmod(other, vm)
     }
 
+    #[pymethod(name = "__pos__")]
+    fn pos(&self) -> Complex64 {
+        self.value
+    }
+
     #[pymethod(name = "__neg__")]
     fn neg(&self) -> Complex64 {
         -self.value