deps: add v8::Object::SetInternalFieldForNodeCore()

This is a non-ABI breaking solution for
v8/v8@b60a03d
and
v8/v8@0aa622e
which are necessary for backporting vm-related memory fixes to v18.x.

PR-URL: #49874
Backport-PR-URL: #51004
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>

deps/v8/include/v8-object.h

@@ -20,6 +20,8 @@ class Function;
 class FunctionTemplate;
 template <typename T>
 class PropertyCallbackInfo;
+class Module;
+class UnboundScript;
 
 /**
  * A private symbol
@@ -480,6 +482,21 @@ class V8_EXPORT Object : public Value {
   /** Sets the value in an internal field. */
   void SetInternalField(int index, Local<Value> value);
 
+  /**
+   * Warning: These are Node.js-specific extentions used to avoid breaking
+   * changes in Node.js v18.x. They do not exist in V8 upstream and will
+   * not exist in Node.js v21.x. Node.js embedders and addon authors should
+   * not use them from v18.x.
+   */
+#ifndef NODE_WANT_INTERNALS
+  V8_DEPRECATED("This extention should only be used by Node.js core")
+#endif
+  void SetInternalFieldForNodeCore(int index, Local<Module> value);
+#ifndef NODE_WANT_INTERNALS
+  V8_DEPRECATED("This extention should only be used by Node.js core")
+#endif
+  void SetInternalFieldForNodeCore(int index, Local<UnboundScript> value);
+
   /**
    * Gets a 2-byte-aligned native pointer from an internal field. This field
    * must have been set by SetAlignedPointerInInternalField, everything else

deps/v8/src/api/api.cc

@@ -5948,14 +5948,33 @@ Local<Value> v8::Object::SlowGetInternalField(int index) {
   return Utils::ToLocal(value);
 }
 
-void v8::Object::SetInternalField(int index, v8::Local<Value> value) {
-  i::Handle<i::JSReceiver> obj = Utils::OpenHandle(this);
+template<typename T>
+void SetInternalFieldImpl(v8::Object* receiver, int index, v8::Local<T> value) {
+  i::Handle<i::JSReceiver> obj = Utils::OpenHandle(receiver);
   const char* location = "v8::Object::SetInternalField()";
   if (!InternalFieldOK(obj, index, location)) return;
   i::Handle<i::Object> val = Utils::OpenHandle(*value);
   i::Handle<i::JSObject>::cast(obj)->SetEmbedderField(index, *val);
 }
 
+void v8::Object::SetInternalField(int index, v8::Local<Value> value) {
+  SetInternalFieldImpl(this, index, value);
+}
+
+/**
+ * These are Node.js-specific extentions used to avoid breaking changes in
+ * Node.js v20.x.
+ */
+void v8::Object::SetInternalFieldForNodeCore(int index,
+                                             v8::Local<Module> value) {
+  SetInternalFieldImpl(this, index, value);
+}
+
+void v8::Object::SetInternalFieldForNodeCore(int index,
+                                             v8::Local<UnboundScript> value) {
+  SetInternalFieldImpl(this, index, value);
+}
+
 void* v8::Object::SlowGetAlignedPointerFromInternalField(int index) {
   i::Handle<i::JSReceiver> obj = Utils::OpenHandle(this);
   const char* location = "v8::Object::GetAlignedPointerFromInternalField()";