buffer: avoid creating unnecessary environment

PR-URL: #58053
Reviewed-By: Juan José Arboleda <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Robert Nagy <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
Reviewed-By: Marco Ippolito <[email protected]>

Author: anonrig

src/node_buffer.cc

@@ -736,11 +736,11 @@ void StringWrite(const FunctionCallbackInfo<Value>& args) {
 }
 
 void SlowByteLengthUtf8(const FunctionCallbackInfo<Value>& args) {
-  Environment* env = Environment::GetCurrent(args);
   CHECK(args[0]->IsString());
 
   // Fast case: avoid StringBytes on UTF8 string. Jump to v8.
-  args.GetReturnValue().Set(args[0].As<String>()->Utf8Length(env->isolate()));
+  args.GetReturnValue().Set(
+      args[0].As<String>()->Utf8Length(args.GetIsolate()));
 }
 
 uint32_t FastByteLengthUtf8(Local<Value> receiver,