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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
use deno_core::error::AnyError;use deno_core::FsModuleLoader;use deno_runtime::deno_broadcast_channel::InMemoryBroadcastChannel;use deno_runtime::deno_web::BlobStore;use deno_runtime::permissions::Permissions;use deno_runtime::worker::MainWorker;use deno_runtime::worker::WorkerOptions;use deno_runtime::BootstrapOptions;use std::path::Path;use std::rc::Rc;use std::sync::Arc;
fn get_error_class_name(e: &AnyError) -> &'static str {  deno_runtime::errors::get_error_class_name(e).unwrap_or("Error")}
#[tokio::main]async fn main() -> Result<(), AnyError> {  let module_loader = Rc::new(FsModuleLoader);  let create_web_worker_cb = Arc::new(|_| {    todo!("Web workers are not supported in the example");  });  let web_worker_event_cb = Arc::new(|_| {    todo!("Web workers are not supported in the example");  });
  let options = WorkerOptions {    bootstrap: BootstrapOptions {      args: vec![],      cpu_count: 1,      debug_flag: false,      enable_testing_features: false,      locale: deno_core::v8::icu::get_language_tag(),      location: None,      no_color: false,      is_tty: false,      runtime_version: "x".to_string(),      ts_version: "x".to_string(),      unstable: false,      user_agent: "hello_runtime".to_string(),      inspect: false,    },    extensions: vec![],    startup_snapshot: None,    unsafely_ignore_certificate_errors: None,    root_cert_store: None,    seed: None,    source_map_getter: None,    format_js_error_fn: None,    web_worker_preload_module_cb: web_worker_event_cb.clone(),    web_worker_pre_execute_module_cb: web_worker_event_cb,    create_web_worker_cb,    maybe_inspector_server: None,    should_break_on_first_statement: false,    module_loader,    npm_resolver: None,    get_error_class_fn: Some(&get_error_class_name),    cache_storage_dir: None,    origin_storage_dir: None,    blob_store: BlobStore::default(),    broadcast_channel: InMemoryBroadcastChannel::default(),    shared_array_buffer_store: None,    compiled_wasm_module_store: None,    stdio: Default::default(),  };
  let js_path =    Path::new(env!("CARGO_MANIFEST_DIR")).join("examples/hello_runtime.js");  let main_module = deno_core::resolve_path(&js_path.to_string_lossy())?;  let permissions = Permissions::allow_all();
  let mut worker = MainWorker::bootstrap_from_options(    main_module.clone(),    permissions,    options,  );  worker.execute_main_module(&main_module).await?;  worker.run_event_loop(false).await?;  Ok(())}