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lsp: Work on syncing the state with the language server.

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pull/8/head
Blaž Hrastnik 4 years ago
parent cd16df19c1
commit 2ab069bb3f
8 changed files with 92 additions and 35 deletions
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3
Cargo.lock generated
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@ -553,7 +553,6 @@ dependencies = [
"futures-util",
"glob",
"helix-core",
"helix-view",
"jsonrpc-core",
"log",
"lsp-types",
@ -604,7 +603,9 @@ version = "0.1.0"
dependencies = [
"anyhow",
"crossterm",
"futures-util",
"helix-core",
"helix-lsp",
"once_cell",
"smol",
"tui",

1
helix-lsp/Cargo.toml
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@ -8,7 +8,6 @@ edition = "2018"
[dependencies]
helix-core = { path = "../helix-core" }
helix-view = { path = "../helix-view" }
once_cell = "1.4"

67
helix-lsp/src/client.rs
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@ -5,8 +5,7 @@ use crate::{
type Result<T> = core::result::Result<T, Error>;
use helix_core::{ChangeSet, Transaction};
use helix_view::Document;
use helix_core::{ChangeSet, Rope, Transaction};
// use std::collections::HashMap;
use std::sync::atomic::{AtomicU64, Ordering};
@ -23,10 +22,6 @@ use smol::{
Executor,
};
fn text_document_identifier(doc: &Document) -> lsp::TextDocumentIdentifier {
lsp::TextDocumentIdentifier::new(lsp::Url::from_file_path(doc.path().unwrap()).unwrap())
}
pub struct Client {
_process: Child,
stderr: BufReader<ChildStderr>,
@ -232,13 +227,18 @@ impl Client {
// Text document
// -------------------------------------------------------------------------------------------
pub async fn text_document_did_open(&self, doc: &Document) -> Result<()> {
pub async fn text_document_did_open(
&self,
uri: lsp::Url,
version: i32,
doc: &Rope,
) -> Result<()> {
self.notify::<lsp::notification::DidOpenTextDocument>(lsp::DidOpenTextDocumentParams {
text_document: lsp::TextDocumentItem {
uri: lsp::Url::from_file_path(doc.path().unwrap()).unwrap(),
uri,
language_id: "rust".to_string(), // TODO: hardcoded for now
version: doc.version,
text: String::from(doc.text()),
version,
text: String::from(doc),
},
})
.await
@ -290,6 +290,21 @@ impl Client {
};
}
Insert(s) => {
// TODO:
// thread 'main' panicked at 'Attempt to index past end of slice: char index 1211, slice char length 0', /home/speed/.cargo/registry/src/github.com-1ecc6299db9ec823/ropey-1.2.0/src/slice.rs:301:9
// stack backtrace:
// 0: rust_begin_unwind
// at /rustc/b32e6e6ac8921035177256ab6806e6ab0d4b9b94/library/std/src/panicking.rs:493:5
// 1: std::panicking::begin_panic_fmt
// at /rustc/b32e6e6ac8921035177256ab6806e6ab0d4b9b94/library/std/src/panicking.rs:435:5
// 2: ropey::slice::RopeSlice::char_to_line
// at /home/speed/.cargo/registry/src/github.com-1ecc6299db9ec823/ropey-1.2.0/src/slice.rs:301:9
// 3: helix_lsp::util::pos_to_lsp_pos
// at /home/speed/src/helix/helix-lsp/src/lib.rs:39:20
// 4: helix_lsp::client::Client::to_changes
// at /home/speed/src/helix/helix-lsp/src/client.rs:293:33
// 5: helix_lsp::client::Client::text_document_did_change::{{closure}}
// at /home/speed/src/helix/helix-lsp/src/client.rs:338:55
let start = pos_to_lsp_pos(&old_text, old_pos);
// insert
@ -309,8 +324,8 @@ impl Client {
// TODO: trigger any time history.commit_revision happens
pub async fn text_document_did_change(
&self,
doc: &Document,
transaction: &Transaction,
text_document: lsp::VersionedTextDocumentIdentifier,
changes: &ChangeSet,
) -> Result<()> {
// figure out what kind of sync the server supports
@ -335,16 +350,12 @@ impl Client {
text: "".to_string(),
}] // TODO: probably need old_state here too?
}
lsp::TextDocumentSyncKind::Incremental => Self::to_changes(transaction.changes()),
lsp::TextDocumentSyncKind::Incremental => Self::to_changes(changes),
lsp::TextDocumentSyncKind::None => return Ok(()),
};
self.notify::<lsp::notification::DidChangeTextDocument>(lsp::DidChangeTextDocumentParams {
text_document: lsp::VersionedTextDocumentIdentifier::new(
// TODO: doc.into() Url
lsp::Url::from_file_path(doc.path().unwrap()).unwrap(),
doc.version,
),
text_document,
content_changes: changes,
})
.await
@ -352,9 +363,12 @@ impl Client {
// TODO: impl into() TextDocumentIdentifier / VersionedTextDocumentIdentifier for Document.
pub async fn text_document_did_close(&self, doc: &Document) -> Result<()> {
pub async fn text_document_did_close(
&self,
text_document: lsp::TextDocumentIdentifier,
) -> Result<()> {
self.notify::<lsp::notification::DidCloseTextDocument>(lsp::DidCloseTextDocumentParams {
text_document: text_document_identifier(doc),
text_document,
})
.await
}
@ -365,16 +379,17 @@ impl Client {
unimplemented!()
}
pub async fn completion(&self, doc: &Document) -> anyhow::Result<Vec<lsp::CompletionItem>> {
pub async fn completion(
&self,
text_document: lsp::TextDocumentIdentifier,
position: lsp::Position,
) -> anyhow::Result<Vec<lsp::CompletionItem>> {
// TODO: figure out what should happen when you complete with multiple cursors
let params = lsp::CompletionParams {
text_document_position: lsp::TextDocumentPositionParams {
text_document: text_document_identifier(doc),
position: crate::util::pos_to_lsp_pos(
&doc.text().slice(..),
doc.selection().cursor(),
),
text_document,
position,
},
// TODO: support these tokens by async receiving and updating the choice list
work_done_progress_params: lsp::WorkDoneProgressParams {

16
helix-term/src/application.rs
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@ -44,16 +44,23 @@ impl Application {
let mut editor = Editor::new();
let size = terminal.size()?;
let language_servers = helix_lsp::Registry::new();
let language_server = language_servers.get("rust", &executor).unwrap();
if let Some(file) = args.values_of_t::<PathBuf>("files").unwrap().pop() {
editor.open(file, (size.width, size.height))?;
// TODO: do this everywhere
editor
.view_mut()
.unwrap()
.doc
.set_language_server(Some(language_server.clone()));
}
let mut compositor = Compositor::new();
compositor.push(Box::new(ui::EditorView::new()));
let language_servers = helix_lsp::Registry::new();
let language_server = language_servers.get("rust", &executor).unwrap();
let mut app = Self {
editor,
terminal,
@ -90,8 +97,9 @@ impl Application {
pub async fn event_loop(&mut self) {
let mut reader = EventStream::new();
let doc = &self.editor.view().unwrap().doc;
self.language_server
.text_document_did_open(&self.editor.view().unwrap().doc)
.text_document_did_open(doc.url().unwrap(), doc.version, doc.text())
.await
.unwrap();

6
helix-term/src/commands.rs
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@ -841,9 +841,13 @@ pub fn completion(cx: &mut Context) {
use std::time::Duration;
// TODO: blocking here is not ideal
let pos = helix_lsp::util::pos_to_lsp_pos(
&cx.view.doc.text().slice(..),
cx.view.doc.selection().cursor(),
);
let res = smol::block_on(
language_server
.completion(&cx.view.doc)
.completion(cx.view.doc.identifier(), pos)
.timeout(Duration::from_secs(2)),
)
.expect("completion failed!")

3
helix-term/src/ui/editor.rs
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@ -41,7 +41,8 @@ impl EditorView {
self.render_buffer(view, area, surface, theme);
// clear with background color
surface.set_style(viewport, theme.get("ui.background"));
// TODO: this seems to prevent setting style later
// surface.set_style(viewport, theme.get("ui.background"));
let area = Rect::new(0, viewport.height - 2, viewport.width, 1);
self.render_statusline(view, area, surface, theme);

2
helix-view/Cargo.toml
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@ -13,6 +13,7 @@ default = ["term"]
[dependencies]
anyhow = "1"
helix-core = { path = "../helix-core" }
helix-lsp = { path = "../helix-lsp"}
# Conversion traits
# tui = { version = "0.12", default-features = false, features = ["crossterm"], optional = true}
@ -22,3 +23,4 @@ once_cell = "1.4"
url = "2"
smol = "1"
futures-util = "0.3"

29
helix-view/src/document.rs
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@ -1,6 +1,7 @@
use anyhow::Error;
use std::future::Future;
use std::path::{Path, PathBuf};
use std::sync::Arc;
use helix_core::{
syntax::LOADER, ChangeSet, Diagnostic, History, Position, Range, Rope, RopeSlice, Selection,
@ -35,6 +36,7 @@ pub struct Document {
pub version: i32, // should be usize?
pub diagnostics: Vec<Diagnostic>,
pub language_server: Option<Arc<helix_lsp::Client>>,
}
/// Like std::mem::replace() except it allows the replacement value to be mapped from the
@ -53,6 +55,8 @@ where
}
}
use futures_util::TryFutureExt;
use helix_lsp::lsp;
use url::Url;
impl Document {
@ -72,6 +76,7 @@ impl Document {
diagnostics: Vec::new(),
version: 0,
history: History::default(),
language_server: None,
}
}
@ -134,7 +139,7 @@ impl Document {
// TODO: flush?
Ok(())
} // and_then(// lsp.send_text_saved_notification())
} // and_then notify save
}
pub fn set_language(&mut self, scope: &str, scopes: &[String]) {
@ -148,6 +153,10 @@ impl Document {
};
}
pub fn set_language_server(&mut self, language_server: Option<Arc<helix_lsp::Client>>) {
self.language_server = language_server;
}
pub fn set_selection(&mut self, selection: Selection) {
// TODO: use a transaction?
self.state.selection = selection;
@ -181,6 +190,14 @@ impl Document {
}
// TODO: map state.diagnostics over changes::map_pos too
// emit lsp notification
if let Some(language_server) = &self.language_server {
let notify = language_server
.text_document_did_change(self.versioned_identifier(), transaction.changes());
smol::block_on(notify).expect("failed to emit textDocument/didChange");
}
}
success
}
@ -263,4 +280,14 @@ impl Document {
// }
// TODO: transact(Fn) ?
// -- LSP methods
pub fn identifier(&self) -> lsp::TextDocumentIdentifier {
lsp::TextDocumentIdentifier::new(self.url().unwrap())
}
pub fn versioned_identifier(&self) -> lsp::VersionedTextDocumentIdentifier {
lsp::VersionedTextDocumentIdentifier::new(self.url().unwrap(), self.version)
}
}

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