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denoland-deno/runtime/examples/extension/main.rs
David Sherret 47f7bed677
chore: enable clippy::print_stdout and clippy::print_stderr (#23732)
1. Generally we should prefer to use the `log` crate.
2. I very often accidentally commit `eprintln`s.

When we should use `println` or `eprintln`, it's not too bad to be a bit
more verbose and ignore the lint rule.
2024-05-08 22:45:06 -04:00

47 lines
1.3 KiB
Rust

// 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 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(())
}