tools: replace closure-linter with eslint

PR-URL: https://github.com/iojs/io.js/pull/1539
Fixes: https://github.com/iojs/io.js/issues/1253
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>
Reviewed-By: Chris Dickinson <christopher.s.dickinson@gmail.com>
Reviewed-By: Johan Bergström <bugs@bergstroem.nu>
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/tools/eslint/lib/rules/no-nested-ternary.js b/tools/eslint/lib/rules/no-nested-ternary.js
new file mode 100644
index 0000000000..10b0683f95
--- /dev/null
+++ b/tools/eslint/lib/rules/no-nested-ternary.js
@@ -0,0 +1,22 @@
+/**
+ * @fileoverview Rule to flag nested ternary expressions
+ * @author Ian Christian Myers
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+module.exports = function(context) {
+
+    return {
+        "ConditionalExpression": function(node) {
+            if (node.alternate.type === "ConditionalExpression" ||
+                    node.consequent.type === "ConditionalExpression") {
+                context.report(node, "Do not nest ternary expressions");
+            }
+        }
+    };
+};