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denoland-deno/runtime/examples/extension/main.rs

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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
#![allow(clippy::print_stdout)]
#![allow(clippy::print_stderr)]
use std::path::Path;
use std::rc::Rc;
use std::sync::Arc;
use deno_core::error::AnyError;
use deno_core::op2;
use deno_core::FsModuleLoader;
use deno_core::ModuleSpecifier;
use deno_fs::RealFs;
use deno_runtime::deno_permissions::PermissionsContainer;
use deno_runtime::permissions::RuntimePermissionDescriptorParser;
use deno_runtime::worker::MainWorker;
use deno_runtime::worker::WorkerOptions;
use deno_runtime::worker::WorkerServiceOptions;
#[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 fs = Arc::new(RealFs);
let permission_desc_parser =
Arc::new(RuntimePermissionDescriptorParser::new(fs.clone()));
let mut worker = MainWorker::bootstrap_from_options(
main_module.clone(),
WorkerServiceOptions {
module_loader: Rc::new(FsModuleLoader),
permissions: PermissionsContainer::allow_all(permission_desc_parser),
blob_store: Default::default(),
broadcast_channel: Default::default(),
feature_checker: Default::default(),
node_services: Default::default(),
npm_process_state_provider: Default::default(),
root_cert_store_provider: Default::default(),
fetch_dns_resolver: Default::default(),
shared_array_buffer_store: Default::default(),
compiled_wasm_module_store: Default::default(),
v8_code_cache: Default::default(),
fs,
},
WorkerOptions {
extensions: vec![hello_runtime::init_ops_and_esm()],
..Default::default()
},
);
worker.execute_main_module(&main_module).await?;
worker.run_event_loop(false).await?;
Ok(())
}