fix(cli): unbreak extension example and fix __runtime_js_sources (#22906)

Better example to close https://github.com/denoland/deno/issues/22600

---------

Signed-off-by: Matt Mastracci <matthew@mastracci.com>

1 files changed, 44 insertions, 0 deletions

diff --git a/runtime/examples/extension/main.rs b/runtime/examples/extension/main.rs
new file mode 100644
index 000000000..0026d0de0
--- /dev/null
+++ b/runtime/examples/extension/main.rs
@@ -0,0 +1,44 @@
+// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
+
+use std::path::Path;
+use std::rc::Rc;
+
+use deno_core::error::AnyError;
+use deno_core::op2;
+use deno_core::FsModuleLoader;
+use deno_core::ModuleSpecifier;
+use deno_runtime::permissions::PermissionsContainer;
+use deno_runtime::worker::MainWorker;
+use deno_runtime::worker::WorkerOptions;
+
+#[op2(fast)]
+fn op_hello(#[string] text: &str) {
+  println!("Hello {} from an op!", text);
+}
+
+deno_core::extension!(
+  hello_runtime,
+  ops = [op_hello],
+  esm_entry_point = "ext:hello_runtime/bootstrap.js",
+  esm = [dir "examples/extension", "bootstrap.js"]
+);
+
+#[tokio::main]
+async fn main() -> Result<(), AnyError> {
+  let js_path =
+    Path::new(env!("CARGO_MANIFEST_DIR")).join("examples/extension/main.js");
+  let main_module = ModuleSpecifier::from_file_path(js_path).unwrap();
+  eprintln!("Running {main_module}...");
+  let mut worker = MainWorker::bootstrap_from_options(
+    main_module.clone(),
+    PermissionsContainer::allow_all(),
+    WorkerOptions {
+      module_loader: Rc::new(FsModuleLoader),
+      extensions: vec![hello_runtime::init_ops_and_esm()],
+      ..Default::default()
+    },
+  );
+  worker.execute_main_module(&main_module).await?;
+  worker.run_event_loop(false).await?;
+  Ok(())
+}