From: Jean Privat <jean@pryen.org>
Date: Fri, 24 Feb 2012 16:55:45 +0000 (-0500)
Subject: syntax: warn on superfluous empty parentheses on calls
X-Git-Tag: v0.5~16^2~6
X-Git-Url: http://nitlanguage.org?hp=3cf6a30fa25aec8a2a01382a6dea25586d497c39

syntax: warn on superfluous empty parentheses on calls

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

diff --git a/src/syntax/typing.nit b/src/syntax/typing.nit
index 77f9779..4155ecc 100644
--- a/src/syntax/typing.nit
+++ b/src/syntax/typing.nit
@@ -403,6 +403,15 @@ redef class AParExpr
 	end
 end
 
+redef class AParExprs
+	redef fun after_typing(v)
+	do
+		if n_exprs.is_empty then
+			v.warning(self, "Warning: superfluous parentheses.")
+		end
+	end
+end
+
 redef class AVardeclExpr
 	var _variable: nullable VarVariable
 	redef fun variable do return _variable.as(not null)