lib: use const to define constants

This commit replaces a number of var statements throughout
the lib code with const statements.

PR-URL: https://github.com/iojs/io.js/pull/541
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

1 files changed, 12 insertions, 11 deletions

diff --git a/lib/v8.js b/lib/v8.js
index d54f0c1b7b..c6cf015e72 100644
--- a/lib/v8.js
+++ b/lib/v8.js
@@ -14,17 +14,18 @@
 
 'use strict';
 
-var v8binding = process.binding('v8');
-var smalloc = require('smalloc');
-
-var heapStatisticsBuffer = smalloc.alloc(v8binding.kHeapStatisticsBufferLength,
-                                         v8binding.kHeapStatisticsBufferType);
-
-var kTotalHeapSizeIndex = v8binding.kTotalHeapSizeIndex;
-var kTotalHeapSizeExecutableIndex = v8binding.kTotalHeapSizeExecutableIndex;
-var kTotalPhysicalSizeIndex = v8binding.kTotalPhysicalSizeIndex;
-var kUsedHeapSizeIndex = v8binding.kUsedHeapSizeIndex;
-var kHeapSizeLimitIndex = v8binding.kHeapSizeLimitIndex;
+const v8binding = process.binding('v8');
+const smalloc = require('smalloc');
+
+const heapStatisticsBuffer =
+    smalloc.alloc(v8binding.kHeapStatisticsBufferLength,
+                  v8binding.kHeapStatisticsBufferType);
+
+const kTotalHeapSizeIndex = v8binding.kTotalHeapSizeIndex;
+const kTotalHeapSizeExecutableIndex = v8binding.kTotalHeapSizeExecutableIndex;
+const kTotalPhysicalSizeIndex = v8binding.kTotalPhysicalSizeIndex;
+const kUsedHeapSizeIndex = v8binding.kUsedHeapSizeIndex;
+const kHeapSizeLimitIndex = v8binding.kHeapSizeLimitIndex;
 
 exports.getHeapStatistics = function() {
   var buffer = heapStatisticsBuffer;