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denoland-deno/runtime/ops/mod.rs

91 lines
2.5 KiB
Rust

// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
pub mod fs;
pub mod fs_events;
pub mod http;
pub mod io;
pub mod net;
#[cfg(unix)]
mod net_unix;
pub mod os;
pub mod permissions;
pub mod plugin;
pub mod process;
pub mod runtime;
pub mod signal;
pub mod tls;
pub mod tty;
mod utils;
pub mod web_worker;
pub mod worker_host;
use crate::metrics::metrics_op;
use deno_core::error::AnyError;
use deno_core::op_async;
use deno_core::op_sync;
use deno_core::serde::de::DeserializeOwned;
use deno_core::serde::Serialize;
use deno_core::JsRuntime;
use deno_core::OpState;
use std::cell::RefCell;
use std::future::Future;
use std::rc::Rc;
pub fn reg_async<F, A, B, R, RV>(
rt: &mut JsRuntime,
name: &'static str,
op_fn: F,
) where
F: Fn(Rc<RefCell<OpState>>, A, B) -> R + 'static,
A: DeserializeOwned,
B: DeserializeOwned,
R: Future<Output = Result<RV, AnyError>> + 'static,
RV: Serialize + 'static,
{
rt.register_op(name, metrics_op(name, op_async(op_fn)));
}
pub fn reg_sync<F, A, B, R>(rt: &mut JsRuntime, name: &'static str, op_fn: F)
where
F: Fn(&mut OpState, A, B) -> Result<R, AnyError> + 'static,
A: DeserializeOwned,
B: DeserializeOwned,
R: Serialize + 'static,
{
rt.register_op(name, metrics_op(name, op_sync(op_fn)));
}
/// `UnstableChecker` is a struct so it can be placed inside `GothamState`;
/// using type alias for a bool could work, but there's a high chance
/// that there might be another type alias pointing to a bool, which
/// would override previously used alias.
pub struct UnstableChecker {
pub unstable: bool,
}
impl UnstableChecker {
/// Quits the process if the --unstable flag was not provided.
///
/// This is intentionally a non-recoverable check so that people cannot probe
/// for unstable APIs from stable programs.
// NOTE(bartlomieju): keep in sync with `cli/program_state.rs`
pub fn check_unstable(&self, api_name: &str) {
if !self.unstable {
eprintln!(
"Unstable API '{}'. The --unstable flag must be provided.",
api_name
);
std::process::exit(70);
}
}
}
/// Helper for checking unstable features. Used for sync ops.
pub fn check_unstable(state: &OpState, api_name: &str) {
state.borrow::<UnstableChecker>().check_unstable(api_name)
}
/// Helper for checking unstable features. Used for async ops.
pub fn check_unstable2(state: &Rc<RefCell<OpState>>, api_name: &str) {
let state = state.borrow();
state.borrow::<UnstableChecker>().check_unstable(api_name)
}