# HG changeset patch
# User Michael Pavone <pavone@retrodev.com>
# Date 1387837340 28800
# Node ID b70be565d54cda1b4315cd84e6f700b64a7bddad
# Parent  b799192e404bc053352088a214fd318b9efddf18
Fix check of return value from env.find in symbol.quote so that falsey found values do not cause trouble.

diff -r b799192e404b -r b70be565d54c interp.js
--- a/interp.js	Sat Dec 21 12:08:06 2013 -0800
+++ b/interp.js	Mon Dec 23 14:22:20 2013 -0800
@@ -304,7 +304,7 @@
 
 symbol.prototype.quote = function(env) {
 	var val = env.find(this.name);
-	if (val) {
+	if (val !== null) {
 		var newnode = makeASTNode(val);
 		return newnode;
 	} else {