typing&engines: accept `is_same_instance` on `null`

[nit.git] / src / interpreter / naive_interpreter.nit

diff --git a/src/interpreter/naive_interpreter.nit b/src/interpreter/naive_interpreter.nit
index 4bbe635..5cc3892 100644 (file)
--- a/src/interpreter/naive_interpreter.nit
+++ b/src/interpreter/naive_interpreter.nit
@@ -458,7 +458,7 @@ class NaiveInterpreter
        fun send_commons(mproperty: MMethod, args: Array[Instance], mtype: MType): nullable Instance
        do
                if mtype isa MNullType then
-                       if mproperty.name == "==" then
+                       if mproperty.name == "==" or mproperty.name == "is_same_instance" then
                                return self.bool_instance(args[0] == args[1])
                        else if mproperty.name == "!=" then
                                return self.bool_instance(args[0] != args[1])