From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shelley Vohr <shelley.vohr@gmail.com>
Date: Mon, 22 Oct 2018 10:47:11 -0700
Subject: add_realloc.patch

Blink overrides ArrayBuffer's allocator with its own one, while Node simply
uses malloc and free, so we need to use v8's allocator in Node. As part of the
10.6.0 upgrade, we needed to make SerializerDelegate accept an allocator
argument in its constructor, and override ReallocateBufferMemory and
FreeBufferMemory to use the allocator. We cannot simply allocate and then memcpy
when we override ReallocateBufferMemory, so we therefore need to implement
Realloc on the v8 side.

diff --git a/include/v8.h b/include/v8.h
index 170d8d4012fa487435cb01eacd00dd0efa25fb44..4e64c9503751cf538bae3aaa0783d2eadd2dec65 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -4651,6 +4651,13 @@ class V8_EXPORT ArrayBuffer : public Object {
      */
     virtual void* AllocateUninitialized(size_t length) = 0;
 
+    /**
+     * Free the memory block of size |length|, pointed to by |data|.
+     * That memory must be previously allocated by |Allocate| and not yet freed
+     * with a call to |Free| or |Realloc|
+     */
+    virtual void* Realloc(void* data, size_t length);
+
     /**
      * Free the memory block of size |length|, pointed to by |data|.
      * That memory is guaranteed to be previously allocated by |Allocate|.
diff --git a/src/api/api.cc b/src/api/api.cc
index c9ec430e45d88a138d590fdcd7c716af5e40b3be..334bd0ef39e86b07ca2fde01a3e3aa70e83a1aaf 100644
--- a/src/api/api.cc
+++ b/src/api/api.cc
@@ -509,6 +509,10 @@ void V8::SetSnapshotDataBlob(StartupData* snapshot_blob) {
   i::V8::SetSnapshotBlob(snapshot_blob);
 }
 
+void* v8::ArrayBuffer::Allocator::Realloc(void* data, size_t length) {
+  UNIMPLEMENTED();
+}
+
 namespace {
 
 class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator {