From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jeremy Rose <japthorp@slack-corp.com>
Date: Wed, 8 Mar 2023 14:53:17 -0800
Subject: add gin::Converter support for ArrayBufferView

This should be upstreamed.

diff --git a/gin/converter.cc b/gin/converter.cc
index 04bfeb77157ea168de6a382852e7163e0f8d9949..c4d0c2d332f2e09bfa411998abe4c172b135ca23 100644
--- a/gin/converter.cc
+++ b/gin/converter.cc
@@ -20,6 +20,7 @@
 #include "v8/include/v8-value.h"
 
 using v8::ArrayBuffer;
+using v8::ArrayBufferView;
 using v8::External;
 using v8::Function;
 using v8::Int32;
@@ -244,6 +245,20 @@ bool Converter<Local<ArrayBuffer>>::FromV8(Isolate* isolate,
   return true;
 }
 
+Local<Value> Converter<Local<ArrayBufferView>>::ToV8(Isolate* isolate,
+                                                 Local<ArrayBufferView> val) {
+  return val.As<Value>();
+}
+
+bool Converter<Local<ArrayBufferView>>::FromV8(Isolate* isolate,
+                                           Local<Value> val,
+                                           Local<ArrayBufferView>* out) {
+  if (!val->IsArrayBufferView())
+    return false;
+  *out = Local<ArrayBufferView>::Cast(val);
+  return true;
+}
+
 Local<Value> Converter<Local<External>>::ToV8(Isolate* isolate,
                                               Local<External> val) {
   return val.As<Value>();
diff --git a/gin/converter.h b/gin/converter.h
index 828e59f4640e84ae9e4517b9ed9bc13b154fa9f2..c3d97c4e46fe47076299e475be7eec74cbc5783c 100644
--- a/gin/converter.h
+++ b/gin/converter.h
@@ -190,6 +190,15 @@ struct GIN_EXPORT Converter<v8::Local<v8::ArrayBuffer> > {
                      v8::Local<v8::ArrayBuffer>* out);
 };
 
+template<>
+struct GIN_EXPORT Converter<v8::Local<v8::ArrayBufferView> > {
+  static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
+                                    v8::Local<v8::ArrayBufferView> val);
+  static bool FromV8(v8::Isolate* isolate,
+                     v8::Local<v8::Value> val,
+                     v8::Local<v8::ArrayBufferView>* out);
+};
+
 template<>
 struct GIN_EXPORT Converter<v8::Local<v8::External> > {
   static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
