From 84a8d342f2d7eb3263f0c6b9e65d4cfa6cb61ff7 Mon Sep 17 00:00:00 2001
From: Henry Zhu <hi@henryzoo.com>
Date: Fri, 5 Jun 2015 05:24:20 -0400
Subject: [PATCH] Merge pull request babel/babel-eslint#121 from hzoo/i-120

don't visit var decl - fixes babel/babel-eslint#120
---
 eslint/babel-eslint-parser/index.js               |  5 ++++-
 eslint/babel-eslint-parser/test/non-regression.js | 10 +++++++++-
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/eslint/babel-eslint-parser/index.js b/eslint/babel-eslint-parser/index.js
index 3c764c99f8..074a0720a5 100644
--- a/eslint/babel-eslint-parser/index.js
+++ b/eslint/babel-eslint-parser/index.js
@@ -232,7 +232,10 @@ function monkeypatch() {
   referencer.prototype.VariableDeclaration = function(node) {
     if (node.declarations) {
       for (var i = 0; i < node.declarations.length; i++) {
-        checkIdentifierOrVisit.call(this, node.declarations[i].id);
+        var type = node.declarations[i].id.typeAnnotation;
+        if (type) {
+          checkIdentifierOrVisit.call(this, type);
+        }
       }
     }
     variableDeclaration.call(this, node);
diff --git a/eslint/babel-eslint-parser/test/non-regression.js b/eslint/babel-eslint-parser/test/non-regression.js
index 598498afab..c21096f930 100644
--- a/eslint/babel-eslint-parser/test/non-regression.js
+++ b/eslint/babel-eslint-parser/test/non-regression.js
@@ -950,7 +950,7 @@ describe("verify", function () {
     it("array #9", function () {
       verifyAndAssertMessages([
           "let arr = [1, 2, 3];",
-          "let b = [for (e of arr) String(e)];"
+          "let b = [for (e of arr) String(e)]; b;"
         ].join("\n"),
         { "no-unused-vars": 1, "no-undef": 1 },
         []
@@ -1082,4 +1082,12 @@ describe("verify", function () {
       );
     });
   });
+
+  it("detects minimal no-unused-vars case #120", function () {
+    verifyAndAssertMessages(
+      "var unused;",
+      { "no-unused-vars": 1 },
+      [ "1:4 unused is defined but never used no-unused-vars" ]
+    )
+  });
 });