feat(core) deno_core::extension! macro to simplify extension registration (#18210)

This implements two macros to simplify extension registration and centralize a lot of the boilerplate as a base for future improvements:

* `deno_core::ops!` registers a block of `#[op]`s, optionally with type
parameters, useful for places where we share lists of ops
* `deno_core::extension!` is used to register an extension, and creates
two methods that can be used at runtime/snapshot generation time:
`init_ops` and `init_ops_and_esm`.

---------

Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>

1 files changed, 4 insertions, 6 deletions

diff --git a/runtime/ops/fs_events.rs b/runtime/ops/fs_events.rs
index e550d204c..05cc22152 100644
--- a/runtime/ops/fs_events.rs
+++ b/runtime/ops/fs_events.rs
@@ -13,7 +13,6 @@ use deno_core::ResourceId;
 
 use deno_core::op;
 
-use deno_core::Extension;
 use notify::event::Event as NotifyEvent;
 use notify::Error as NotifyError;
 use notify::EventKind;
@@ -29,11 +28,10 @@ use std::path::PathBuf;
 use std::rc::Rc;
 use tokio::sync::mpsc;
 
-pub fn init() -> Extension {
-  Extension::builder("deno_fs_events")
-    .ops(vec![op_fs_events_open::decl(), op_fs_events_poll::decl()])
-    .build()
-}
+deno_core::extension!(
+  deno_fs_events,
+  ops = [op_fs_events_open, op_fs_events_poll]
+);
 
 struct FsEventsResource {
   #[allow(unused)]