From ea64ba0b1d02844f6e268add2ef15a865b3f5e62 Mon Sep 17 00:00:00 2001
From: "Adam D. Ruppe" <destructionator@gmail.com>
Date: Mon, 2 Dec 2013 13:54:30 -0500
Subject: [PATCH] opIn

---
 jsvar.d | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/jsvar.d b/jsvar.d
index fb916ff..cbe3bf0 100644
--- a/jsvar.d
+++ b/jsvar.d
@@ -648,6 +648,18 @@ struct var {
 		return _op!(n, this, op, T)(t);
 	}
 
+	// this in foo
+	public var* opBinary(string op : "in", T)(T s) {
+		var rhs = var(s);
+		return rhs.opBinaryRight!"in"(this);
+	}
+
+	// foo in this
+	public var* opBinaryRight(string op : "in", T)(T s) {
+		// this needs to be an object
+		return var(s).get!string in this._object._properties;
+	}
+
 	public var apply(var _this, var[] args) {
 		if(this.payloadType() == Type.Function) {
 			assert(this._payload._function !is null);