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, 8 insertions, 9 deletions

diff --git a/runtime/ops/runtime.rs b/runtime/ops/runtime.rs
index 5ce9966e0..564d2279b 100644
--- a/runtime/ops/runtime.rs
+++ b/runtime/ops/runtime.rs
@@ -3,18 +3,17 @@
 use crate::permissions::PermissionsContainer;
 use deno_core::error::AnyError;
 use deno_core::op;
-use deno_core::Extension;
 use deno_core::ModuleSpecifier;
 use deno_core::OpState;
 
-pub fn init(main_module: ModuleSpecifier) -> Extension {
-  Extension::builder("deno_runtime")
-    .ops(vec![op_main_module::decl()])
-    .state(move |state| {
-      state.put::<ModuleSpecifier>(main_module.clone());
-    })
-    .build()
-}
+deno_core::extension!(
+  deno_runtime,
+  ops = [op_main_module],
+  config = { main_module: ModuleSpecifier },
+  state = |state, main_module| {
+    state.put::<ModuleSpecifier>(main_module);
+  }
+);
 
 #[op]
 fn op_main_module(state: &mut OpState) -> Result<String, AnyError> {