From 5412c5a39f91bf60c6ead685dc4ac7db3ec81c82 Mon Sep 17 00:00:00 2001
From: harttle <yangjvn@126.com>
Date: Sat, 29 Sep 2018 16:45:11 +0800
Subject: [PATCH] fixes #88

---
 src/lexical.js     | 2 +-
 src/scope.js       | 2 +-
 test/unit/scope.js | 9 +++++++++
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/src/lexical.js b/src/lexical.js
index 649576dee..59f67ee01 100644
--- a/src/lexical.js
+++ b/src/lexical.js
@@ -9,7 +9,7 @@ export const integer = /-?\d+/
 export const number = /-?\d+\.?\d*|\.?\d+/
 export const bool = /true|false/
 
-// peoperty access
+// property access
 export const identifier = /[\w-]+[?]?/
 export const subscript = new RegExp(`\\[(?:${quoted.source}|[\\w-\\.]+)\\]`)
 export const literal = new RegExp(`(?:${quoted.source}|${bool.source}|${number.source})`)
diff --git a/src/scope.js b/src/scope.js
index ee1dc6c38..561930f70 100644
--- a/src/scope.js
+++ b/src/scope.js
@@ -109,7 +109,7 @@ const Scope = {
             assert(j !== -1, `unbalanced []: ${str}`)
             name = str.slice(i + 1, j)
             if (!lexical.isInteger(name)) { // foo[bar] vs. foo[1]
-              name = this.get(name)
+              name = String(this.get(name))
             }
             push()
             i = j + 1
diff --git a/test/unit/scope.js b/test/unit/scope.js
index dd8a36b85..dc9d2798e 100644
--- a/test/unit/scope.js
+++ b/test/unit/scope.js
@@ -8,6 +8,7 @@ describe('scope', function () {
   beforeEach(function () {
     ctx = {
       foo: 'zoo',
+      one: 1,
       bar: {
         zoo: 'coo',
         'Mr.Smith': 'John',
@@ -46,6 +47,14 @@ describe('scope', function () {
       expect(scope.propertyAccessSeq('foo[0].bar'))
         .to.deep.equal(['foo', '0', 'bar'])
     })
+    it('should handle nested access 5', function () {
+      expect(scope.propertyAccessSeq('foo[one].bar'))
+        .to.deep.equal(['foo', '1', 'bar'])
+    })
+    it('should handle nested access 6', function () {
+      expect(scope.propertyAccessSeq('foo[two].bar'))
+        .to.deep.equal(['foo', 'undefined', 'bar'])
+    })
   })
 
   describe('#get()', function () {