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cli: refactor compile_sync() for readability

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Bert Belder 2019-04-02 05:24:07 +02:00
parent b735155712
commit 5f1e42f8ac
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GPG key ID: 7A77887B2E2ED461
1 changed files with 36 additions and 73 deletions
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95
cli/compiler.rs
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@ -198,84 +198,47 @@ pub fn compile_sync(
referrer: &str,
module_meta_data: &ModuleMetaData,
) -> ModuleMetaData {
let is_worker = parent_state.is_worker;
debug!(
"Running rust part of compile_sync. specifier: {}, referrer: {}",
&specifier, &referrer
);
let req_msg = req(specifier, referrer, parent_state.is_worker);
let module_meta_data_ = module_meta_data.clone();
let shared = lazy_start(parent_state);
let compiler_rid = shared.rid;
let (local_sender, local_receiver) =
oneshot::channel::<Result<ModuleMetaData, Option<JSError>>>();
// Just some extra scoping to keep things clean
{
let compiler_rid = shared.rid;
let module_meta_data_ = module_meta_data.clone();
let req_msg = req(specifier, referrer, is_worker);
let sender_arc = Arc::new(Some(local_sender));
let specifier_ = specifier.to_string();
let referrer_ = referrer.to_string();
let mut runtime = C_RUNTIME.lock().unwrap();
runtime.spawn(lazy(move || {
debug!(
"Running rust part of compile_sync specifier: {} referrer: {}",
specifier_, referrer_
);
let mut send_sender_arc = sender_arc.clone();
resources::post_message_to_worker(compiler_rid, req_msg)
.map_err(move |_| {
let sender = Arc::get_mut(&mut send_sender_arc).unwrap().take();
sender.unwrap().send(Err(None)).unwrap()
}).and_then(move |_| {
debug!(
"Sent message to worker specifier: {} referrer: {}",
specifier_, referrer_
);
let mut get_sender_arc = sender_arc.clone();
let mut result_sender_arc = sender_arc.clone();
.then(move |_| {
debug!("Sent message to worker");
resources::get_message_from_worker(compiler_rid)
.map_err(move |_| {
let sender = Arc::get_mut(&mut get_sender_arc).unwrap().take();
sender.unwrap().send(Err(None)).unwrap()
}).and_then(move |res_msg_option| -> Result<(), ()> {
debug!(
"Recieved message from worker specifier: {} referrer: {}",
specifier_, referrer_
);
let res_msg = res_msg_option.unwrap();
let res_json = std::str::from_utf8(&res_msg).unwrap();
let sender = Arc::get_mut(&mut result_sender_arc)
.unwrap()
.take()
.unwrap();
sender
.send(Ok(match serde_json::from_str::<serde_json::Value>(
res_json,
) {
Ok(serde_json::Value::Object(map)) => ModuleMetaData {
module_name: module_meta_data_.module_name.clone(),
module_redirect_source_name: module_meta_data_
.module_redirect_source_name
.clone(),
filename: module_meta_data_.filename.clone(),
media_type: module_meta_data_.media_type,
source_code: module_meta_data_.source_code.clone(),
maybe_output_code: match map["outputCode"].as_str() {
Some(str) => Some(str.as_bytes().to_owned()),
_ => None,
},
maybe_output_code_filename: None,
maybe_source_map: match map["sourceMap"].as_str() {
Some(str) => Some(str.as_bytes().to_owned()),
_ => None,
},
maybe_source_map_filename: None,
},
_ => panic!("error decoding compiler response"),
})).expect("send failed");
}).and_then(move |res_msg| {
debug!("Received message from worker");
let res_json = std::str::from_utf8(res_msg.as_ref().unwrap()).unwrap();
let res_data = serde_json::from_str::<serde_json::Value>(res_json)
.expect("Error decoding compiler response");
let res_module_meta_data = ModuleMetaData {
maybe_output_code: res_data["outputCode"]
.as_str()
.map(|s| s.as_bytes().to_owned()),
maybe_source_map: res_data["sourceMap"]
.as_str()
.map(|s| s.as_bytes().to_owned()),
..module_meta_data_
};
Ok(res_module_meta_data)
}).map_err(|_| None)
.then(move |result| {
local_sender.send(result).expect("Oneshot send() failed");
Ok(())
})
})
}));
}
let worker_receiver = shared.worker_err_receiver.clone();