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Get rid of failure: ra_lsp_server & ra_project_model

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This commit is contained in:
Muhammad Mominul Huque 2019-06-15 02:42:56 +06:00
parent a931fb1ef6
commit 9709bd39ca
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GPG key ID: 37AF141540DE557D
10 changed files with 32 additions and 36 deletions
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2
crates/ra_lsp_server/src/lib.rs
View file

@ -9,5 +9,5 @@ pub mod req;
pub mod init;
mod world;
pub type Result<T> = ::std::result::Result<T, ::failure::Error>;
pub type Result<T> = std::result::Result<T, Box<dyn std::error::Error + Send + Sync>>;
pub use crate::{caps::server_capabilities, main_loop::main_loop, main_loop::LspError, init::InitializationOptions};

2
crates/ra_lsp_server/src/main.rs
View file

@ -25,7 +25,7 @@ fn main() -> Result<()> {
}
Err(_) => {
log::error!("server panicked");
failure::bail!("server panicked")
Err("server panicked")?
}
}
}

31
crates/ra_lsp_server/src/main_loop.rs
View file

@ -2,11 +2,9 @@ mod handlers;
mod subscriptions;
pub(crate) mod pending_requests;
use std::{fmt, path::PathBuf, sync::Arc, time::Instant};
use std::{fmt, path::PathBuf, sync::Arc, time::Instant, error::Error};
use crossbeam_channel::{select, unbounded, Receiver, RecvError, Sender};
use failure::{bail, format_err};
use failure_derive::Fail;
use gen_lsp_server::{
handle_shutdown, ErrorCode, RawMessage, RawNotification, RawRequest, RawResponse,
};
@ -32,8 +30,7 @@ use crate::{
const THREADPOOL_SIZE: usize = 8;
const MAX_IN_FLIGHT_LIBS: usize = THREADPOOL_SIZE - 3;
#[derive(Debug, Fail)]
#[fail(display = "Language Server request failed with {}. ({})", code, message)]
#[derive(Debug)]
pub struct LspError {
pub code: i32,
pub message: String,
@ -45,6 +42,14 @@ impl LspError {
}
}
impl fmt::Display for LspError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "Language Server request failed with {}. ({})", self.code, self.message)
}
}
impl Error for LspError {}
pub fn main_loop(
ws_roots: Vec<PathBuf>,
options: InitializationOptions,
@ -177,12 +182,12 @@ fn main_loop_inner(
let event = select! {
recv(msg_receiver) -> msg => match msg {
Ok(msg) => Event::Msg(msg),
Err(RecvError) => bail!("client exited without shutdown"),
Err(RecvError) => Err("client exited without shutdown")?,
},
recv(task_receiver) -> task => Event::Task(task.unwrap()),
recv(state.vfs.read().task_receiver()) -> task => match task {
Ok(task) => Event::Vfs(task),
Err(RecvError) => bail!("vfs died"),
Err(RecvError) => Err("vfs died")?,
},
recv(libdata_receiver) -> data => Event::Lib(data.unwrap())
};
@ -380,7 +385,7 @@ fn on_notification(
let not = match not.cast::<req::DidOpenTextDocument>() {
Ok(params) => {
let uri = params.text_document.uri;
let path = uri.to_file_path().map_err(|()| format_err!("invalid uri: {}", uri))?;
let path = uri.to_file_path().map_err(|()| format!("invalid uri: {}", uri))?;
if let Some(file_id) =
state.vfs.write().add_file_overlay(&path, params.text_document.text)
{
@ -393,9 +398,9 @@ fn on_notification(
let not = match not.cast::<req::DidChangeTextDocument>() {
Ok(mut params) => {
let uri = params.text_document.uri;
let path = uri.to_file_path().map_err(|()| format_err!("invalid uri: {}", uri))?;
let path = uri.to_file_path().map_err(|()| format!("invalid uri: {}", uri))?;
let text =
params.content_changes.pop().ok_or_else(|| format_err!("empty changes"))?.text;
params.content_changes.pop().ok_or_else(|| format!("empty changes"))?.text;
state.vfs.write().change_file_overlay(path.as_path(), text);
return Ok(());
}
@ -404,7 +409,7 @@ fn on_notification(
let not = match not.cast::<req::DidCloseTextDocument>() {
Ok(params) => {
let uri = params.text_document.uri;
let path = uri.to_file_path().map_err(|()| format_err!("invalid uri: {}", uri))?;
let path = uri.to_file_path().map_err(|()| format!("invalid uri: {}", uri))?;
if let Some(file_id) = state.vfs.write().remove_file_overlay(path.as_path()) {
subs.remove_sub(FileId(file_id.0));
}
@ -546,7 +551,7 @@ where
RawResponse::err(
id,
ErrorCode::InternalError as i32,
format!("{}\n{}", e, e.backtrace()),
e.to_string()
)
}
}
@ -599,6 +604,6 @@ fn show_message(typ: req::MessageType, message: impl Into<String>, sender: &Send
sender.send(not.into()).unwrap();
}
fn is_canceled(e: &failure::Error) -> bool {
fn is_canceled(e: &Box<dyn std::error::Error + Send + Sync>) -> bool {
e.downcast_ref::<Canceled>().is_some()
}

11
crates/ra_lsp_server/src/world.rs
View file

@ -11,7 +11,6 @@ use ra_ide_api::{
use ra_vfs::{Vfs, VfsChange, VfsFile, VfsRoot};
use relative_path::RelativePathBuf;
use parking_lot::RwLock;
use failure::{Error, format_err};
use gen_lsp_server::ErrorCode;
use crate::{
@ -169,13 +168,13 @@ impl WorldSnapshot {
}
pub fn uri_to_file_id(&self, uri: &Url) -> Result<FileId> {
let path = uri.to_file_path().map_err(|()| format_err!("invalid uri: {}", uri))?;
let path = uri.to_file_path().map_err(|()| format!("invalid uri: {}", uri))?;
let file = self.vfs.read().path2file(&path).ok_or_else(|| {
// Show warning as this file is outside current workspace
Error::from(LspError {
LspError {
code: ErrorCode::InvalidRequest as i32,
message: "Rust file outside current workspace is not supported yet.".to_string(),
})
}
})?;
Ok(FileId(file.0))
}
@ -183,7 +182,7 @@ impl WorldSnapshot {
pub fn file_id_to_uri(&self, id: FileId) -> Result<Url> {
let path = self.vfs.read().file2path(VfsFile(id.0));
let url = Url::from_file_path(&path)
.map_err(|_| format_err!("can't convert path to url: {}", path.display()))?;
.map_err(|_| format!("can't convert path to url: {}", path.display()))?;
Ok(url)
}
@ -191,7 +190,7 @@ impl WorldSnapshot {
let base = self.vfs.read().root2path(VfsRoot(root.0));
let path = path.to_path(base);
let url = Url::from_file_path(&path)
.map_err(|_| format_err!("can't convert path to url: {}", path.display()))?;
.map_err(|_| format!("can't convert path to url: {}", path.display()))?;
Ok(url)
}