From 2e974cdd8ce1829d50b8e8713633e4510b2d3e76 Mon Sep 17 00:00:00 2001
From: James M Snell <jasnell@gmail.com>
Date: Mon, 18 Apr 2016 21:02:18 -0700
Subject: [PATCH] src: add process.binding('config')

It turns out that userland likes to override process.config with
their own stuff. If we want to be able to depend on it in any way,
we need our own internal mechanism.

This adds a new private process.binding('config') that is
intended to serve as a container for internal flags and compile
time configs that need to be passed on to the JS layer.

PR-URL: https://github.com/nodejs/node/pull/6266
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
---
 node.gyp           |  1 +
 src/node_config.cc | 36 ++++++++++++++++++++++++++++++++++++
 2 files changed, 37 insertions(+)
 create mode 100644 src/node_config.cc

diff --git a/node.gyp b/node.gyp
index 0e9fe40c419..86dffef5c67 100644
--- a/node.gyp
+++ b/node.gyp
@@ -130,6 +130,7 @@
         'src/js_stream.cc',
         'src/node.cc',
         'src/node_buffer.cc',
+        'src/node_config.cc',
         'src/node_constants.cc',
         'src/node_contextify.cc',
         'src/node_file.cc',
diff --git a/src/node_config.cc b/src/node_config.cc
new file mode 100644
index 00000000000..e50002bc64c
--- /dev/null
+++ b/src/node_config.cc
@@ -0,0 +1,36 @@
+#include "node.h"
+#include "env.h"
+#include "env-inl.h"
+#include "util.h"
+#include "util-inl.h"
+
+
+namespace node {
+
+using v8::Context;
+using v8::Local;
+using v8::Object;
+using v8::Value;
+using v8::ReadOnly;
+
+// The config binding is used to provide an internal view of compile or runtime
+// config options that are required internally by lib/*.js code. This is an
+// alternative to dropping additional properties onto the process object as
+// has been the practice previously in node.cc.
+
+#define READONLY_BOOLEAN_PROPERTY(str)                                        \
+  do {                                                                        \
+    target->DefineOwnProperty(env->context(),                                 \
+                              OneByteString(env->isolate(), str),             \
+                              True(env->isolate()), ReadOnly).FromJust();     \
+  } while (0)
+
+void InitConfig(Local<Object> target,
+                Local<Value> unused,
+                Local<Context> context) {
+  // Environment* env = Environment::GetCurrent(context);
+}
+
+}  // namespace node
+
+NODE_MODULE_CONTEXT_AWARE_BUILTIN(config, node::InitConfig)