1 files changed, 39 insertions, 0 deletions
diff --git a/tools/eslint/lib/rules/radix.js b/tools/eslint/lib/rules/radix.js
new file mode 100644
index 0000000000..a0c7acfb2e
--- /dev/null
+++ b/tools/eslint/lib/rules/radix.js
@@ -0,0 +1,39 @@
+/**
+ * @fileoverview Rule to flag use of parseInt without a radix argument
+ * @author James Allardice
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+module.exports = function(context) {
+
+    return {
+        "CallExpression": function(node) {
+
+            var radix;
+
+            if (node.callee.name === "parseInt") {
+
+                if (node.arguments.length < 2) {
+                    context.report(node, "Missing radix parameter.");
+                } else {
+
+                    radix = node.arguments[1];
+
+                    // don't allow non-numeric literals or undefined
+                    if ((radix.type === "Literal" && typeof radix.value !== "number") ||
+                        (radix.type === "Identifier" && radix.name === "undefined")
+                    ) {
+                        context.report(node, "Invalid radix parameter.");
+                    }
+                }
+
+            }
+        }
+    };
+
+};