Is there any example of how to add custom ops or rust implemented modules to deno?

[tempbottle]

I have read some code in deno/ext/ dir, but there are many places do registration. For example, the deno/runtime/workers.rs, snapshot[_info].rs. So what is the guide line for how to add a custom ops like this?

[bartlomieju]

So what is the guide line for how to add a custom ops like this?

You can either follow what it happening the places you pointed out (they contain comments where else it should be updated), or just do it in every place you create a JsRuntime instance