metrics: --nullable use `is_null_safe`

Signed-off-by: Jean Privat <jean@pryen.org>

diff --git a/src/metrics/nullables_metrics.nit b/src/metrics/nullables_metrics.nit
index 2c96462..aa145c6 100644 (file)
--- a/src/metrics/nullables_metrics.nit
+++ b/src/metrics/nullables_metrics.nit
@@ -131,8 +131,8 @@ private class NullableSends
                        end
                        t = t.anchor_to(self.nclassdef.mclassdef.mmodule, self.nclassdef.mclassdef.bound_mtype)
                        if t isa MNullableType then
-                               var name = n.callsite.mproperty.name
-                               if name == "==" or name == "!=" or name == "is_same_instance" then
+                               var p = n.callsite.mproperty
+                               if p.is_null_safe then
                                        self.nullable_eq_sends += 1
                                else
                                        self.nullable_sends += 1