- allow to pass generators from PHP to JS and vice versa
Merge improvements from V8Js for PHP 5.x (version 0.5.0) to PHP 7.0 branch:
- Export public methods on classes derived from \V8Js to V8
- Support V8 compiled with external snapshots
- Allow to create custom snapshots of V8 heaps
- Allow to create V8 contexts based on custom snapshots generated earlier
- Support V8 5.1 well