Entering already entered Isolate and/or Context is much cheaper, (200% cheaper). Before that we used to wrap a code that did intensive entering and leaving into FunctionObject callback, which is also overhead and dirty hack. With something like Isolate::withing(callable $callback) and Context::withing(callable $callback) it should be more straightforward and much cleaner to let users to do potential optimizations.
Entering already entered
Isolateand/orContextis much cheaper, (200% cheaper). Before that we used to wrap a code that did intensive entering and leaving intoFunctionObjectcallback, which is also overhead and dirty hack. With something likeIsolate::withing(callable $callback)andContext::withing(callable $callback)it should be more straightforward and much cleaner to let users to do potential optimizations.