refactor(ops): Adding op2 macro and implementing in a couple of places (#19534)

This is a new op system that will eventually replace `#[op]`. 

Features
 - More maintainable, generally less-coupled code
 - More modern Rust proc-macro libraries
- Enforces correct `fast` labelling for fast ops, allowing for visual
scanning of fast ops
 - Explicit marking of `#[string]`, `#[serde]` and `#[smi]` parameters.

This first version of op2 supports integer and Option<integer>
parameters only, and allows us to start working on converting ops and
adding features.

1 files changed, 54 insertions, 0 deletions

diff --git a/ops/op2/test_cases/sync/add.out b/ops/op2/test_cases/sync/add.out
new file mode 100644
index 000000000..a7269c5cf
--- /dev/null
+++ b/ops/op2/test_cases/sync/add.out
@@ -0,0 +1,54 @@
+#[allow(non_camel_case_types)]
+struct op_add {}
+impl op_add {
+    pub const fn name() -> &'static str {
+        stringify!(op_add)
+    }
+    pub const fn decl() -> deno_core::_ops::OpDecl {
+        deno_core::_ops::OpDecl {
+            name: stringify!(op_add),
+            v8_fn_ptr: Self::slow_function as _,
+            enabled: true,
+            fast_fn: Some({
+                use deno_core::v8::fast_api::Type;
+                use deno_core::v8::fast_api::CType;
+                deno_core::v8::fast_api::FastFunction::new(
+                    &[Type::Uint32, Type::Uint32],
+                    CType::Uint32,
+                    Self::fast_function as *const ::std::ffi::c_void,
+                )
+            }),
+            is_async: false,
+            is_unstable: false,
+            is_v8: false,
+            arg_count: 2usize as u8,
+        }
+    }
+    pub extern "C" fn slow_function(info: *const deno_core::v8::FunctionCallbackInfo) {
+        let mut rv = deno_core::v8::ReturnValue::from_function_callback_info(unsafe {
+            &*info
+        });
+        let args = deno_core::v8::FunctionCallbackArguments::from_function_callback_info(unsafe {
+            &*info
+        });
+        let arg0 = args.get(0usize as i32);
+        let arg0 = deno_core::_ops::to_u32(&arg0) as _;
+        let arg1 = args.get(1usize as i32);
+        let arg1 = deno_core::_ops::to_u32(&arg1) as _;
+        let result = Self::call(arg0, arg1);
+        rv.set_uint32(result as u32);
+    }
+    fn fast_function(
+        _: deno_core::v8::Local<deno_core::v8::Object>,
+        arg0: u32,
+        arg1: u32,
+    ) -> u32 {
+        let arg0 = arg0 as _;
+        let arg1 = arg1 as _;
+        Self::call(arg0, arg1)
+    }
+    #[inline(always)]
+    fn call(a: u32, b: u32) -> u32 {
+        a + b
+    }
+}