From 75ae45e2bb25ce9f13635330c4e51dc20237fd1a Mon Sep 17 00:00:00 2001
From: Rod Vagg <rod@vagg.org>
Date: Mon, 22 Jun 2015 22:36:29 +1000
Subject: [PATCH] don't copy arguments or caller from require

causes an error in io.js where strict-mode is set on internal modules

Fixes: https://github.com/jashkenas/coffeescript/issues/3810
---
 lib/coffee-script/coffee-script.js | 2 +-
 src/coffee-script.coffee           | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/coffee-script/coffee-script.js b/lib/coffee-script/coffee-script.js
index 7b8fbb5d..9dc7c710 100644
--- a/lib/coffee-script/coffee-script.js
+++ b/lib/coffee-script/coffee-script.js
@@ -175,7 +175,7 @@
         ref3 = Object.getOwnPropertyNames(require);
         for (i = 0, len = ref3.length; i < len; i++) {
           r = ref3[i];
-          if (r !== 'paths') {
+          if (r !== 'paths' && r !== 'arguments' && r !== 'caller') {
             _require[r] = require[r];
           }
         }
diff --git a/src/coffee-script.coffee b/src/coffee-script.coffee
index 4941c7fc..36ca9858 100644
--- a/src/coffee-script.coffee
+++ b/src/coffee-script.coffee
@@ -157,7 +157,8 @@ exports.eval = (code, options = {}) ->
       sandbox.module  = _module  = new Module(options.modulename || 'eval')
       sandbox.require = _require = (path) ->  Module._load path, _module, true
       _module.filename = sandbox.__filename
-      _require[r] = require[r] for r in Object.getOwnPropertyNames require when r isnt 'paths'
+      for r in Object.getOwnPropertyNames require when r not in ['paths', 'arguments', 'caller']
+        _require[r] = require[r]
       # use the same hack node currently uses for their own REPL
       _require.paths = _module.paths = Module._nodeModulePaths process.cwd()
       _require.resolve = (request) -> Module._resolveFilename request, _module