From: Jean Privat <jean@pryen.org>
Date: Wed, 27 May 2015 23:22:17 +0000 (-0400)
Subject: model: introduce `MMethod::is_null_safe`
X-Git-Tag: v0.7.5~4^2~4
X-Git-Url: http://nitlanguage.org

model: introduce `MMethod::is_null_safe`

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

diff --git a/src/model/model.nit b/src/model/model.nit
index 94f11f2..e4b881f 100644
--- a/src/model/model.nit
+++ b/src/model/model.nit
@@ -2153,6 +2153,10 @@ class MMethod
 	do
 		return self.is_init
 	end
+
+	# A specific method that is safe to call on null.
+	# Currently, only `==`, `!=` and `is_same_instance` are safe
+	fun is_null_safe: Bool do return name == "==" or name == "!=" or name == "is_same_instance"
 end
 
 # A global attribute