src: allow embedder customization of OOMErrorHandler

Author: codebytere

src/api/environment.cc

@@ -233,7 +233,10 @@ void SetIsolateErrorHandlers(v8::Isolate* isolate, const IsolateSettings& s) {
   auto* fatal_error_cb = s.fatal_error_callback ?
       s.fatal_error_callback : OnFatalError;
   isolate->SetFatalErrorHandler(fatal_error_cb);
-  isolate->SetOOMErrorHandler(OOMErrorHandler);
+
+  auto* oom_error_cb = s.oom_error_callback ?
+      s.oom_error_callback : OOMErrorHandler;
+  isolate->SetOOMErrorHandler(oom_error_cb);
 
   if ((s.flags & SHOULD_NOT_SET_PREPARE_STACK_TRACE_CALLBACK) == 0) {
     auto* prepare_stack_trace_cb = s.prepare_stack_trace_callback ?

src/node.h

@@ -479,6 +479,7 @@ struct IsolateSettings {
   v8::Isolate::AbortOnUncaughtExceptionCallback
       should_abort_on_uncaught_exception_callback = nullptr;
   v8::FatalErrorCallback fatal_error_callback = nullptr;
+  v8::OOMErrorCallback oom_error_callback = nullptr;
   v8::PrepareStackTraceCallback prepare_stack_trace_callback = nullptr;
 
   // Miscellaneous callbacks