mirror of
https://github.com/denoland/deno
synced 2024-11-05 18:45:24 +00:00
348 lines
10 KiB
Rust
348 lines
10 KiB
Rust
// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
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use crate::fmt_errors::JSError;
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use crate::state::ThreadSafeState;
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use crate::tokio_util;
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use deno;
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use deno::ErrBox;
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use deno::ModuleSpecifier;
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use deno::RecursiveLoad;
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use deno::StartupData;
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use futures::Async;
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use futures::Future;
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use std::env;
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use std::sync::Arc;
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use std::sync::Mutex;
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use url::Url;
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/// Wraps deno::Isolate to provide source maps, ops for the CLI, and
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/// high-level module loading
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#[derive(Clone)]
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pub struct Worker {
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isolate: Arc<Mutex<deno::Isolate>>,
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pub state: ThreadSafeState,
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}
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impl Worker {
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pub fn new(
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_name: String,
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startup_data: StartupData,
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state: ThreadSafeState,
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) -> Worker {
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let isolate = Arc::new(Mutex::new(deno::Isolate::new(startup_data, false)));
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{
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let mut i = isolate.lock().unwrap();
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let state_ = state.clone();
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i.set_dispatch(move |op_id, control_buf, zero_copy_buf| {
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state_.dispatch(op_id, control_buf, zero_copy_buf)
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});
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let state_ = state.clone();
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i.set_dyn_import(move |id, specifier, referrer| {
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let load_stream = RecursiveLoad::dynamic_import(
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id,
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specifier,
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referrer,
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state_.clone(),
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state_.modules.clone(),
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);
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Box::new(load_stream)
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});
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let state_ = state.clone();
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i.set_js_error_create(move |v8_exception| {
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JSError::from_v8_exception(v8_exception, &state_.ts_compiler)
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})
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}
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Self { isolate, state }
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}
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/// Same as execute2() but the filename defaults to "$CWD/__anonymous__".
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pub fn execute(&mut self, js_source: &str) -> Result<(), ErrBox> {
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let path = env::current_dir().unwrap().join("__anonymous__");
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let url = Url::from_file_path(path).unwrap();
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self.execute2(url.as_str(), js_source)
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}
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/// Executes the provided JavaScript source code. The js_filename argument is
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/// provided only for debugging purposes.
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pub fn execute2(
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&mut self,
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js_filename: &str,
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js_source: &str,
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) -> Result<(), ErrBox> {
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let mut isolate = self.isolate.lock().unwrap();
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isolate.execute(js_filename, js_source)
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}
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/// Executes the provided JavaScript module.
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pub fn execute_mod_async(
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&mut self,
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module_specifier: &ModuleSpecifier,
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is_prefetch: bool,
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) -> impl Future<Item = (), Error = ErrBox> {
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let worker = self.clone();
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let loader = self.state.clone();
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let isolate = self.isolate.clone();
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let modules = self.state.modules.clone();
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let recursive_load =
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RecursiveLoad::main(&module_specifier.to_string(), loader, modules)
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.get_future(isolate);
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recursive_load.and_then(move |id| -> Result<(), ErrBox> {
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worker.state.progress.done();
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if is_prefetch {
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Ok(())
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} else {
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let mut isolate = worker.isolate.lock().unwrap();
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isolate.mod_evaluate(id)
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}
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})
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}
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/// Executes the provided JavaScript module.
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pub fn execute_mod(
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&mut self,
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module_specifier: &ModuleSpecifier,
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is_prefetch: bool,
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) -> Result<(), ErrBox> {
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tokio_util::block_on(self.execute_mod_async(module_specifier, is_prefetch))
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}
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}
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impl Future for Worker {
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type Item = ();
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type Error = ErrBox;
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fn poll(&mut self) -> Result<Async<()>, ErrBox> {
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let mut isolate = self.isolate.lock().unwrap();
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isolate.poll()
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use crate::flags;
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use crate::ops::op_selector_std;
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use crate::progress::Progress;
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use crate::resources;
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use crate::startup_data;
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use crate::state::ThreadSafeState;
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use crate::tokio_util;
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use futures::future::lazy;
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use std::sync::atomic::Ordering;
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#[test]
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fn execute_mod_esm_imports_a() {
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let module_specifier =
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ModuleSpecifier::resolve_url_or_path("tests/esm_imports_a.js").unwrap();
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let argv = vec![String::from("./deno"), module_specifier.to_string()];
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let state = ThreadSafeState::new(
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flags::DenoFlags::default(),
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argv,
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op_selector_std,
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Progress::new(),
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true,
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)
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.unwrap();
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let state_ = state.clone();
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tokio_util::run(lazy(move || {
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let mut worker =
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Worker::new("TEST".to_string(), StartupData::None, state);
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let result = worker.execute_mod(&module_specifier, false);
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if let Err(err) = result {
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eprintln!("execute_mod err {:?}", err);
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}
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tokio_util::panic_on_error(worker)
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}));
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let metrics = &state_.metrics;
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assert_eq!(metrics.resolve_count.load(Ordering::SeqCst), 2);
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// Check that we didn't start the compiler.
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assert_eq!(metrics.compiler_starts.load(Ordering::SeqCst), 0);
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}
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#[test]
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fn execute_mod_circular() {
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let module_specifier =
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ModuleSpecifier::resolve_url_or_path("tests/circular1.js").unwrap();
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let argv = vec![String::from("./deno"), module_specifier.to_string()];
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let state = ThreadSafeState::new(
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flags::DenoFlags::default(),
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argv,
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op_selector_std,
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Progress::new(),
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true,
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)
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.unwrap();
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let state_ = state.clone();
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tokio_util::run(lazy(move || {
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let mut worker =
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Worker::new("TEST".to_string(), StartupData::None, state);
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let result = worker.execute_mod(&module_specifier, false);
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if let Err(err) = result {
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eprintln!("execute_mod err {:?}", err);
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}
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tokio_util::panic_on_error(worker)
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}));
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let metrics = &state_.metrics;
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assert_eq!(metrics.resolve_count.load(Ordering::SeqCst), 2);
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// Check that we didn't start the compiler.
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assert_eq!(metrics.compiler_starts.load(Ordering::SeqCst), 0);
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}
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#[test]
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fn execute_006_url_imports() {
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let module_specifier =
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ModuleSpecifier::resolve_url_or_path("tests/006_url_imports.ts").unwrap();
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let argv = vec![String::from("deno"), module_specifier.to_string()];
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let mut flags = flags::DenoFlags::default();
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flags.reload = true;
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let state =
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ThreadSafeState::new(flags, argv, op_selector_std, Progress::new(), true)
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.unwrap();
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let state_ = state.clone();
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tokio_util::run(lazy(move || {
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let mut worker = Worker::new(
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"TEST".to_string(),
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startup_data::deno_isolate_init(),
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state,
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);
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worker.execute("denoMain()").unwrap();
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let result = worker.execute_mod(&module_specifier, false);
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if let Err(err) = result {
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eprintln!("execute_mod err {:?}", err);
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}
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tokio_util::panic_on_error(worker)
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}));
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let metrics = &state_.metrics;
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assert_eq!(metrics.resolve_count.load(Ordering::SeqCst), 3);
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// Check that we've only invoked the compiler once.
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assert_eq!(metrics.compiler_starts.load(Ordering::SeqCst), 1);
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}
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fn create_test_worker() -> Worker {
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let state = ThreadSafeState::mock(vec![
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String::from("./deno"),
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String::from("hello.js"),
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]);
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let mut worker =
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Worker::new("TEST".to_string(), startup_data::deno_isolate_init(), state);
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worker.execute("denoMain()").unwrap();
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worker.execute("workerMain()").unwrap();
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worker
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}
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#[test]
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fn test_worker_messages() {
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tokio_util::init(|| {
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let mut worker = create_test_worker();
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let source = r#"
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onmessage = function(e) {
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console.log("msg from main script", e.data);
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if (e.data == "exit") {
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delete window.onmessage;
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return;
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} else {
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console.assert(e.data === "hi");
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}
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postMessage([1, 2, 3]);
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console.log("after postMessage");
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}
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"#;
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worker.execute(source).unwrap();
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let resource = worker.state.resource.clone();
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let resource_ = resource.clone();
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tokio::spawn(lazy(move || {
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worker.then(move |r| -> Result<(), ()> {
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resource_.close();
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r.unwrap();
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Ok(())
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})
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}));
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let msg = json!("hi").to_string().into_boxed_str().into_boxed_bytes();
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let r = resources::post_message_to_worker(resource.rid, msg).wait();
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assert!(r.is_ok());
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let maybe_msg = resources::get_message_from_worker(resource.rid)
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.wait()
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.unwrap();
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assert!(maybe_msg.is_some());
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// Check if message received is [1, 2, 3] in json
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assert_eq!(*maybe_msg.unwrap(), *b"[1,2,3]");
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let msg = json!("exit")
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.to_string()
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.into_boxed_str()
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.into_boxed_bytes();
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let r = resources::post_message_to_worker(resource.rid, msg).wait();
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assert!(r.is_ok());
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})
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}
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#[test]
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fn removed_from_resource_table_on_close() {
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tokio_util::init(|| {
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let mut worker = create_test_worker();
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worker
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.execute("onmessage = () => { delete window.onmessage; }")
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.unwrap();
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let resource = worker.state.resource.clone();
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let rid = resource.rid;
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let worker_future = worker
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.then(move |r| -> Result<(), ()> {
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resource.close();
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println!("workers.rs after resource close");
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r.unwrap();
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Ok(())
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})
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.shared();
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let worker_future_ = worker_future.clone();
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tokio::spawn(lazy(move || worker_future_.then(|_| Ok(()))));
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assert_eq!(resources::get_type(rid), Some("worker".to_string()));
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let msg = json!("hi").to_string().into_boxed_str().into_boxed_bytes();
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let r = resources::post_message_to_worker(rid, msg).wait();
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assert!(r.is_ok());
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debug!("rid {:?}", rid);
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worker_future.wait().unwrap();
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assert_eq!(resources::get_type(rid), None);
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})
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}
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#[test]
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fn execute_mod_resolve_error() {
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tokio_util::init(|| {
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// "foo" is not a valid module specifier so this should return an error.
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let mut worker = create_test_worker();
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let module_specifier =
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ModuleSpecifier::resolve_url_or_path("does-not-exist").unwrap();
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let result = worker.execute_mod_async(&module_specifier, false).wait();
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assert!(result.is_err());
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})
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}
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#[test]
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fn execute_mod_002_hello() {
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tokio_util::init(|| {
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// This assumes cwd is project root (an assumption made throughout the
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// tests).
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let mut worker = create_test_worker();
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let module_specifier =
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ModuleSpecifier::resolve_url_or_path("./tests/002_hello.ts").unwrap();
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let result = worker.execute_mod_async(&module_specifier, false).wait();
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assert!(result.is_ok());
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})
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}
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}
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