From cfc4a08120ccfbf09abe0034eaf743bee72d2323 Mon Sep 17 00:00:00 2001
From: King Koopa <bbyholm@abo.fi>
Date: Mon, 19 Jan 2015 14:50:24 +0200
Subject: [PATCH] Add support for node::Encode/DecodeBytes/DecodeWrite. Fixes
 #250

---
 README.md | 18 ++++++++++++++++
 nan.h     | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 80 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index e8d22a13..d0a959ee 100644
--- a/README.md
+++ b/README.md
@@ -293,6 +293,9 @@ NAN_METHOD(CalculateAsync) {
  * <a href="#api_nan_set_prototype_template"><b><code>NanSetPrototypeTemplate</code></b></a>
  * <a href="#api_nan_set_instance_template"><b><code>NanSetInstanceTemplate</code></b></a>
  * <a href="#api_nan_make_callback"><b><code>NanMakeCallback</code></b></a>
+ * <a href="#api_nan_encode"><b><code>NanEncode</code></b></a>
+ * <a href="#api_nan_decode_bytes"><b><code>NanDecodeBytes</code></b></a>
+ * <a href="#api_nan_decode_write"><b><code>NanDecodeWrite</code></b></a>
  * <a href="#api_nan_compile_script"><b><code>NanCompileScript</code></b></a>
  * <a href="#api_nan_run_script"><b><code>NanRunScript</code></b></a>
  * <a href="#api_nan_adjust_external_memory"><b><code>NanAdjustExternalMemory</code></b></a>
@@ -1066,6 +1069,21 @@ Use to add instance properties on function templates.
 
 Use instead of `node::MakeCallback` to call javascript functions. This (or `NanCallback`) is the only proper way of calling functions. You must _*never, ever*_ directly use `Function::Call`, it will lead to run-time failures.
 
+<a name="api_nan_encode"></a>
+### NanEncode(const void*, size_t[, enum Nan::Encoding])
+
+Replaces `node::Encode`.
+
+<a name="api_nan_decode_bytes"></a>
+### NanDecodeBytes(v8::Handle&lt;v8::Value&gt;[, enum Nan::Encoding])
+
+Replaces `node::DecodeBytes`.
+
+<a name="api_nan_decode_write"></a>
+### NanDecodeWrite(char *, size_t, v8::Handle&lt;v8::Value&gt;[, enum Nan::Encoding])
+
+Replaces `node::DecodeWrite`.
+
 <a name="api_nan_compile_script"></a>
 ### NanCompileScript(Handle<String> s [, const ScriptOrigin&amp; origin])
 
diff --git a/nan.h b/nan.h
index 6c11b47a..3d08be87 100644
--- a/nan.h
+++ b/nan.h
@@ -155,7 +155,7 @@ NAN_INLINE v8::Local<T> _NanEnsureLocal(v8::Local<T> val) {
   return val;
 }
 
-#if NODE_MODULE_VERSION >= 42 // io.js 1.0
+#if NODE_MODULE_VERSION >= 42  // io.js 1.0
   NAN_INLINE
   void NanSetCounterFunction(v8::CounterLookupCallback cb) {
     v8::Isolate::GetCurrent()->SetCounterFunction(cb);
@@ -1816,6 +1816,67 @@ namespace Nan {
   enum Encoding {ASCII, UTF8, BASE64, UCS2, BINARY, HEX, BUFFER};
 }
 
+NAN_INLINE v8::Local<v8::Value> NanEncode(
+    const void *buf, size_t len, enum Nan::Encoding encoding = Nan::BINARY) {
+#if (NODE_MODULE_VERSION > 0x000B)
+  return node::Encode(
+      v8::Isolate::GetCurrent()
+    , buf, len
+    , static_cast<node::encoding>(encoding));
+#else
+# if  (NODE_MODULE_VERSION < 0x000B)
+  if (encoding == Nan::BUFFER) {
+    assert(len <= node::Buffer::kMaxLength);
+    return node::Buffer::New(buf, len)->handle_;
+  }
+# endif
+  return node::Encode(buf, len, static_cast<node::encoding>(encoding));
+#endif
+}
+
+NAN_INLINE ssize_t NanDecodeBytes(
+    v8::Handle<v8::Value> val, enum Nan::Encoding encoding = Nan::BINARY) {
+#if (NODE_MODULE_VERSION > 0x000B)
+  return node::DecodeBytes(
+      v8::Isolate::GetCurrent()
+    , val
+    , static_cast<node::encoding>(encoding));
+#else
+# if (NODE_MODULE_VERSION < 0x000B)
+  if (encoding == Nan::BUFFER) {
+    return node::DecodeBytes(val, node::BINARY);
+  }
+# endif
+  return node::DecodeBytes(val, static_cast<node::encoding>(encoding));
+#endif
+}
+
+NAN_INLINE ssize_t NanDecodeWrite(
+    char *buf
+  , size_t len
+  , v8::Handle<v8::Value> val
+  , enum Nan::Encoding encoding = Nan::BINARY) {
+#if (NODE_MODULE_VERSION > 0x000B)
+  return node::DecodeWrite(
+      v8::Isolate::GetCurrent()
+    , buf
+    , len
+    , val
+    , static_cast<node::encoding>(encoding));
+#else
+# if (NODE_MODULE_VERSION < 0x000B)
+  if (encoding == Nan::BUFFER) {
+    return node::DecodeWrite(buf, len, val, node::BINARY);
+  }
+# endif
+  return node::DecodeWrite(
+      buf
+    , len
+    , val
+    , static_cast<node::encoding>(encoding));
+#endif
+}
+
 /* NAN_DEPRECATED */ NAN_INLINE void* _NanRawString(
     v8::Handle<v8::Value> from
   , enum Nan::Encoding encoding