forked from Mirrors/helix
Fix completions
parent
cfaf0787f3
commit
6723d8b3db
GPG Key ID:
DFFFCC2C7A02DB45
@ -1,696 +0,0 @@
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mod client;
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pub mod jsonrpc;
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mod transport;
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pub use client::Client;
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pub use futures_executor::block_on;
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pub use jsonrpc::Call;
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pub use lsp::{Position, Url};
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pub use lsp_types as lsp;
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use futures_util::stream::select_all::SelectAll;
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use helix_core::syntax::{LanguageConfiguration, LanguageServerConfiguration};
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use tokio::sync::mpsc::UnboundedReceiver;
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use std::{
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collections::{hash_map::Entry, HashMap},
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path::PathBuf,
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sync::{
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atomic::{AtomicUsize, Ordering},
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Arc,
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},
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};
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use serde::{Deserialize, Serialize};
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use thiserror::Error;
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use tokio_stream::wrappers::UnboundedReceiverStream;
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pub type Result<T> = core::result::Result<T, Error>;
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type LanguageId = String;
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#[derive(Error, Debug)]
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pub enum Error {
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#[error("protocol error: {0}")]
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Rpc(#[from] jsonrpc::Error),
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#[error("failed to parse: {0}")]
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Parse(#[from] serde_json::Error),
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#[error("IO Error: {0}")]
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IO(#[from] std::io::Error),
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#[error("request timed out")]
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Timeout,
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#[error("server closed the stream")]
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StreamClosed,
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#[error("LPS not defined")]
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LspNotDefined,
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#[error("Unhandled")]
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Unhandled,
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#[error(transparent)]
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Other(#[from] anyhow::Error),
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}
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#[derive(Clone, Copy, Debug, Serialize, Deserialize)]
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pub enum OffsetEncoding {
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/// UTF-8 code units aka bytes
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#[serde(rename = "utf-8")]
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Utf8,
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/// UTF-16 code units
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#[serde(rename = "utf-16")]
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Utf16,
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}
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pub mod util {
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use super::*;
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use helix_core::{diagnostic::NumberOrString, Range, Rope, Transaction};
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/// Converts a diagnostic in the document to [`lsp::Diagnostic`].
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///
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/// Panics when [`pos_to_lsp_pos`] would for an invalid range on the diagnostic.
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pub fn diagnostic_to_lsp_diagnostic(
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doc: &Rope,
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diag: &helix_core::diagnostic::Diagnostic,
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offset_encoding: OffsetEncoding,
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) -> lsp::Diagnostic {
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use helix_core::diagnostic::Severity::*;
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let range = Range::new(diag.range.start, diag.range.end);
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let severity = diag.severity.map(|s| match s {
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Hint => lsp::DiagnosticSeverity::HINT,
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Info => lsp::DiagnosticSeverity::INFORMATION,
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Warning => lsp::DiagnosticSeverity::WARNING,
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Error => lsp::DiagnosticSeverity::ERROR,
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});
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let code = match diag.code.clone() {
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Some(x) => match x {
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NumberOrString::Number(x) => Some(lsp::NumberOrString::Number(x)),
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NumberOrString::String(x) => Some(lsp::NumberOrString::String(x)),
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},
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None => None,
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};
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let new_tags: Vec<_> = diag
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.tags
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.iter()
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.map(|tag| match tag {
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helix_core::diagnostic::DiagnosticTag::Unnecessary => {
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lsp::DiagnosticTag::UNNECESSARY
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}
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helix_core::diagnostic::DiagnosticTag::Deprecated => lsp::DiagnosticTag::DEPRECATED,
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})
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.collect();
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let tags = if !new_tags.is_empty() {
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Some(new_tags)
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} else {
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None
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};
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// TODO: add support for Diagnostic.data
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lsp::Diagnostic::new(
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range_to_lsp_range(doc, range, offset_encoding),
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severity,
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code,
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diag.source.clone(),
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diag.message.to_owned(),
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None,
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tags,
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)
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}
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/// Converts [`lsp::Position`] to a position in the document.
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///
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/// Returns `None` if position exceeds document length or an operation overflows.
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pub fn lsp_pos_to_pos(
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doc: &Rope,
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pos: lsp::Position,
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offset_encoding: OffsetEncoding,
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) -> Option<usize> {
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let pos_line = pos.line as usize;
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if pos_line > doc.len_lines() - 1 {
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return None;
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}
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match offset_encoding {
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OffsetEncoding::Utf8 => {
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let line = doc.line_to_char(pos_line);
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let pos = line.checked_add(pos.character as usize)?;
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if pos <= doc.len_chars() {
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Some(pos)
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} else {
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None
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}
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}
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OffsetEncoding::Utf16 => {
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let line = doc.line_to_char(pos_line);
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let line_start = doc.char_to_utf16_cu(line);
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let pos = line_start.checked_add(pos.character as usize)?;
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doc.try_utf16_cu_to_char(pos).ok()
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}
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}
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}
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/// Converts position in the document to [`lsp::Position`].
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///
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/// Panics when `pos` is out of `doc` bounds or operation overflows.
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pub fn pos_to_lsp_pos(
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doc: &Rope,
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pos: usize,
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offset_encoding: OffsetEncoding,
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) -> lsp::Position {
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match offset_encoding {
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OffsetEncoding::Utf8 => {
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let line = doc.char_to_line(pos);
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let line_start = doc.line_to_char(line);
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let col = pos - line_start;
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lsp::Position::new(line as u32, col as u32)
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}
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OffsetEncoding::Utf16 => {
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let line = doc.char_to_line(pos);
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let line_start = doc.char_to_utf16_cu(doc.line_to_char(line));
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let col = doc.char_to_utf16_cu(pos) - line_start;
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lsp::Position::new(line as u32, col as u32)
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}
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}
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}
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/// Converts a range in the document to [`lsp::Range`].
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pub fn range_to_lsp_range(
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doc: &Rope,
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range: Range,
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offset_encoding: OffsetEncoding,
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) -> lsp::Range {
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let start = pos_to_lsp_pos(doc, range.from(), offset_encoding);
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let end = pos_to_lsp_pos(doc, range.to(), offset_encoding);
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lsp::Range::new(start, end)
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}
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pub fn lsp_range_to_range(
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doc: &Rope,
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range: lsp::Range,
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offset_encoding: OffsetEncoding,
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) -> Option<Range> {
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let start = lsp_pos_to_pos(doc, range.start, offset_encoding)?;
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let end = lsp_pos_to_pos(doc, range.end, offset_encoding)?;
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Some(Range::new(start, end))
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}
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pub fn generate_transaction_from_edits(
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doc: &Rope,
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mut edits: Vec<lsp::TextEdit>,
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offset_encoding: OffsetEncoding,
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) -> Transaction {
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// Sort edits by start range, since some LSPs (Omnisharp) send them
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// in reverse order.
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edits.sort_unstable_by_key(|edit| edit.range.start);
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// Generate a diff if the edit is a full document replacement.
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#[allow(clippy::collapsible_if)]
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if edits.len() == 1 {
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let is_document_replacement = edits.first().and_then(|edit| {
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let start = lsp_pos_to_pos(doc, edit.range.start, offset_encoding)?;
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let end = lsp_pos_to_pos(doc, edit.range.end, offset_encoding)?;
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Some(start..end)
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}) == Some(0..doc.len_chars());
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if is_document_replacement {
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let new_text = Rope::from(edits.pop().unwrap().new_text);
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return helix_core::diff::compare_ropes(doc, &new_text);
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}
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}
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Transaction::change(
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doc,
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edits.into_iter().map(|edit| {
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// simplify "" into None for cleaner changesets
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let replacement = if !edit.new_text.is_empty() {
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Some(edit.new_text.into())
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} else {
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None
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};
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let start =
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if let Some(start) = lsp_pos_to_pos(doc, edit.range.start, offset_encoding) {
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start
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} else {
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return (0, 0, None);
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};
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let end = if let Some(end) = lsp_pos_to_pos(doc, edit.range.end, offset_encoding) {
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end
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} else {
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return (0, 0, None);
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};
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(start, end, replacement)
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}),
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)
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}
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}
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#[derive(Debug, PartialEq, Clone)]
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pub enum MethodCall {
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WorkDoneProgressCreate(lsp::WorkDoneProgressCreateParams),
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ApplyWorkspaceEdit(lsp::ApplyWorkspaceEditParams),
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WorkspaceFolders,
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WorkspaceConfiguration(lsp::ConfigurationParams),
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}
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impl MethodCall {
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pub fn parse(method: &str, params: jsonrpc::Params) -> Result<MethodCall> {
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use lsp::request::Request;
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let request = match method {
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lsp::request::WorkDoneProgressCreate::METHOD => {
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let params: lsp::WorkDoneProgressCreateParams = params.parse()?;
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Self::WorkDoneProgressCreate(params)
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}
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lsp::request::ApplyWorkspaceEdit::METHOD => {
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let params: lsp::ApplyWorkspaceEditParams = params.parse()?;
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Self::ApplyWorkspaceEdit(params)
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}
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lsp::request::WorkspaceFoldersRequest::METHOD => Self::WorkspaceFolders,
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lsp::request::WorkspaceConfiguration::METHOD => {
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let params: lsp::ConfigurationParams = params.parse()?;
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Self::WorkspaceConfiguration(params)
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}
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_ => {
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return Err(Error::Unhandled);
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}
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};
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Ok(request)
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}
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}
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#[derive(Debug, PartialEq, Clone)]
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pub enum Notification {
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// we inject this notification to signal the LSP is ready
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Initialized,
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// and this notification to signal that the LSP exited
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Exit,
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PublishDiagnostics(lsp::PublishDiagnosticsParams),
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ShowMessage(lsp::ShowMessageParams),
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LogMessage(lsp::LogMessageParams),
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ProgressMessage(lsp::ProgressParams),
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}
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impl Notification {
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pub fn parse(method: &str, params: jsonrpc::Params) -> Result<Notification> {
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use lsp::notification::Notification as _;
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let notification = match method {
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lsp::notification::Initialized::METHOD => Self::Initialized,
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lsp::notification::Exit::METHOD => Self::Exit,
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lsp::notification::PublishDiagnostics::METHOD => {
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let params: lsp::PublishDiagnosticsParams = params.parse()?;
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Self::PublishDiagnostics(params)
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}
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lsp::notification::ShowMessage::METHOD => {
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let params: lsp::ShowMessageParams = params.parse()?;
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Self::ShowMessage(params)
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}
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lsp::notification::LogMessage::METHOD => {
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let params: lsp::LogMessageParams = params.parse()?;
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Self::LogMessage(params)
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}
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lsp::notification::Progress::METHOD => {
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let params: lsp::ProgressParams = params.parse()?;
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Self::ProgressMessage(params)
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}
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_ => {
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return Err(Error::Unhandled);
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}
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};
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Ok(notification)
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}
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}
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#[derive(Debug)]
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pub struct Registry {
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inner: HashMap<LanguageId, (usize, Arc<Client>)>,
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counter: AtomicUsize,
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pub incoming: SelectAll<UnboundedReceiverStream<(usize, Call)>>,
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}
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impl Default for Registry {
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fn default() -> Self {
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Self::new()
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}
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}
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impl Registry {
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pub fn new() -> Self {
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Self {
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inner: HashMap::new(),
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counter: AtomicUsize::new(0),
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incoming: SelectAll::new(),
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}
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}
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pub fn get_by_id(&self, id: usize) -> Option<&Client> {
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self.inner
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.values()
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.find(|(client_id, _)| client_id == &id)
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.map(|(_, client)| client.as_ref())
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}
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<<<<<<< HEAD
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||||||| 4ec2a21c
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pub fn restart(
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&mut self,
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language_config: &LanguageConfiguration,
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doc_path: Option<&std::path::PathBuf>,
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) -> Result<Option<Arc<Client>>> {
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let config = match &language_config.language_server {
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Some(config) => config,
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None => return Ok(None),
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};
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let scope = language_config.scope.clone();
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match self.inner.entry(scope) {
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Entry::Vacant(_) => Ok(None),
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Entry::Occupied(mut entry) => {
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// initialize a new client
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let id = self.counter.fetch_add(1, Ordering::Relaxed);
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let NewClientResult(client, incoming) =
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start_client(id, language_config, config, doc_path)?;
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self.incoming.push(UnboundedReceiverStream::new(incoming));
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let (_, old_client) = entry.insert((id, client.clone()));
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tokio::spawn(async move {
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let _ = old_client.force_shutdown().await;
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});
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Ok(Some(client))
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}
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}
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}
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=======
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pub fn remove_by_id(&mut self, id: usize) {
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self.inner.retain(|_, (client_id, _)| client_id != &id)
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}
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pub fn restart(
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&mut self,
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language_config: &LanguageConfiguration,
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doc_path: Option<&std::path::PathBuf>,
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) -> Result<Option<Arc<Client>>> {
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let config = match &language_config.language_server {
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Some(config) => config,
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None => return Ok(None),
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};
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let scope = language_config.scope.clone();
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match self.inner.entry(scope) {
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Entry::Vacant(_) => Ok(None),
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Entry::Occupied(mut entry) => {
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// initialize a new client
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let id = self.counter.fetch_add(1, Ordering::Relaxed);
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let NewClientResult(client, incoming) =
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start_client(id, language_config, config, doc_path)?;
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self.incoming.push(UnboundedReceiverStream::new(incoming));
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let (_, old_client) = entry.insert((id, client.clone()));
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tokio::spawn(async move {
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let _ = old_client.force_shutdown().await;
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});
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Ok(Some(client))
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}
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}
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}
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>>>>>>> master
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pub fn get(
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&mut self,
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language_config: &LanguageConfiguration,
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doc_path: Option<&std::path::PathBuf>,
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) -> Result<Option<Arc<Client>>> {
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let config = match &language_config.language_server {
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Some(config) => config,
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None => return Ok(None),
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};
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match self.inner.entry(language_config.scope.clone()) {
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Entry::Occupied(entry) => Ok(Some(entry.get().1.clone())),
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Entry::Vacant(entry) => {
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// initialize a new client
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let id = self.counter.fetch_add(1, Ordering::Relaxed);
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let NewClientResult(client, incoming) =
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start_client(id, language_config, config, doc_path)?;
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self.incoming.push(UnboundedReceiverStream::new(incoming));
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entry.insert((id, client.clone()));
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Ok(Some(client))
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}
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}
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}
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pub fn restart(
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&mut self,
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language_config: &LanguageConfiguration,
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path: Option<&PathBuf>,
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) -> Result<Arc<Client>> {
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let config = language_config
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.language_server
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.as_ref()
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.ok_or(Error::LspNotDefined)?;
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let id = self
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.inner
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.get(&language_config.scope)
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.ok_or(Error::LspNotDefined)?
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.0;
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let new_client = self.initialize_client(language_config, config, id, path)?;
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let (_, client) = self
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.inner
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.get_mut(&language_config.scope)
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.ok_or(Error::LspNotDefined)?;
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*client = new_client;
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Ok(client.clone())
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}
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fn initialize_client(
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&mut self,
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language_config: &LanguageConfiguration,
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config: &helix_core::syntax::LanguageServerConfiguration,
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id: usize,
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path: Option<&PathBuf>,
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) -> Result<Arc<Client>> {
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let (client, incoming, initialize_notify) = Client::start(
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&config.command,
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&config.args,
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language_config.config.clone(),
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&language_config.roots,
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id,
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config.timeout,
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path,
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)?;
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self.incoming.push(UnboundedReceiverStream::new(incoming));
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let client = Arc::new(client);
|
||||
|
||||
// Initialize the client asynchronously
|
||||
let _client = client.clone();
|
||||
tokio::spawn(async move {
|
||||
use futures_util::TryFutureExt;
|
||||
let value = _client
|
||||
.capabilities
|
||||
.get_or_try_init(|| {
|
||||
_client
|
||||
.initialize()
|
||||
.map_ok(|response| response.capabilities)
|
||||
})
|
||||
.await;
|
||||
|
||||
if let Err(e) = value {
|
||||
log::error!("failed to initialize language server: {}", e);
|
||||
return;
|
||||
}
|
||||
|
||||
// next up, notify<initialized>
|
||||
_client
|
||||
.notify::<lsp::notification::Initialized>(lsp::InitializedParams {})
|
||||
.await
|
||||
.unwrap();
|
||||
|
||||
initialize_notify.notify_one();
|
||||
});
|
||||
|
||||
Ok(client)
|
||||
}
|
||||
|
||||
pub fn iter_clients(&self) -> impl Iterator<Item = &Arc<Client>> {
|
||||
self.inner.values().map(|(_, client)| client)
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub enum ProgressStatus {
|
||||
Created,
|
||||
Started(lsp::WorkDoneProgress),
|
||||
}
|
||||
|
||||
impl ProgressStatus {
|
||||
pub fn progress(&self) -> Option<&lsp::WorkDoneProgress> {
|
||||
match &self {
|
||||
ProgressStatus::Created => None,
|
||||
ProgressStatus::Started(progress) => Some(progress),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Default, Debug)]
|
||||
/// Acts as a container for progress reported by language servers. Each server
|
||||
/// has a unique id assigned at creation through [`Registry`]. This id is then used
|
||||
/// to store the progress in this map.
|
||||
pub struct LspProgressMap(HashMap<usize, HashMap<lsp::ProgressToken, ProgressStatus>>);
|
||||
|
||||
impl LspProgressMap {
|
||||
pub fn new() -> Self {
|
||||
Self::default()
|
||||
}
|
||||
|
||||
/// Returns a map of all tokens corresponding to the language server with `id`.
|
||||
pub fn progress_map(&self, id: usize) -> Option<&HashMap<lsp::ProgressToken, ProgressStatus>> {
|
||||
self.0.get(&id)
|
||||
}
|
||||
|
||||
pub fn is_progressing(&self, id: usize) -> bool {
|
||||
self.0.get(&id).map(|it| !it.is_empty()).unwrap_or_default()
|
||||
}
|
||||
|
||||
/// Returns last progress status for a given server with `id` and `token`.
|
||||
pub fn progress(&self, id: usize, token: &lsp::ProgressToken) -> Option<&ProgressStatus> {
|
||||
self.0.get(&id).and_then(|values| values.get(token))
|
||||
}
|
||||
|
||||
/// Checks if progress `token` for server with `id` is created.
|
||||
pub fn is_created(&mut self, id: usize, token: &lsp::ProgressToken) -> bool {
|
||||
self.0
|
||||
.get(&id)
|
||||
.map(|values| values.get(token).is_some())
|
||||
.unwrap_or_default()
|
||||
}
|
||||
|
||||
pub fn create(&mut self, id: usize, token: lsp::ProgressToken) {
|
||||
self.0
|
||||
.entry(id)
|
||||
.or_default()
|
||||
.insert(token, ProgressStatus::Created);
|
||||
}
|
||||
|
||||
/// Ends the progress by removing the `token` from server with `id`, if removed returns the value.
|
||||
pub fn end_progress(
|
||||
&mut self,
|
||||
id: usize,
|
||||
token: &lsp::ProgressToken,
|
||||
) -> Option<ProgressStatus> {
|
||||
self.0.get_mut(&id).and_then(|vals| vals.remove(token))
|
||||
}
|
||||
|
||||
/// Updates the progress of `token` for server with `id` to `status`, returns the value replaced or `None`.
|
||||
pub fn update(
|
||||
&mut self,
|
||||
id: usize,
|
||||
token: lsp::ProgressToken,
|
||||
status: lsp::WorkDoneProgress,
|
||||
) -> Option<ProgressStatus> {
|
||||
self.0
|
||||
.entry(id)
|
||||
.or_default()
|
||||
.insert(token, ProgressStatus::Started(status))
|
||||
}
|
||||
}
|
||||
|
||||
struct NewClientResult(Arc<Client>, UnboundedReceiver<(usize, Call)>);
|
||||
|
||||
/// start_client takes both a LanguageConfiguration and a LanguageServerConfiguration to ensure that
|
||||
/// it is only called when it makes sense.
|
||||
fn start_client(
|
||||
id: usize,
|
||||
config: &LanguageConfiguration,
|
||||
ls_config: &LanguageServerConfiguration,
|
||||
doc_path: Option<&std::path::PathBuf>,
|
||||
) -> Result<NewClientResult> {
|
||||
let (client, incoming, initialize_notify) = Client::start(
|
||||
&ls_config.command,
|
||||
&ls_config.args,
|
||||
config.config.clone(),
|
||||
&config.roots,
|
||||
id,
|
||||
ls_config.timeout,
|
||||
doc_path,
|
||||
)?;
|
||||
|
||||
let client = Arc::new(client);
|
||||
|
||||
// Initialize the client asynchronously
|
||||
let _client = client.clone();
|
||||
tokio::spawn(async move {
|
||||
use futures_util::TryFutureExt;
|
||||
let value = _client
|
||||
.capabilities
|
||||
.get_or_try_init(|| {
|
||||
_client
|
||||
.initialize()
|
||||
.map_ok(|response| response.capabilities)
|
||||
})
|
||||
.await;
|
||||
|
||||
if let Err(e) = value {
|
||||
log::error!("failed to initialize language server: {}", e);
|
||||
return;
|
||||
}
|
||||
|
||||
// next up, notify<initialized>
|
||||
_client
|
||||
.notify::<lsp::notification::Initialized>(lsp::InitializedParams {})
|
||||
.await
|
||||
.unwrap();
|
||||
|
||||
initialize_notify.notify_one();
|
||||
});
|
||||
|
||||
Ok(NewClientResult(client, incoming))
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::{lsp, util::*, OffsetEncoding};
|
||||
use helix_core::Rope;
|
||||
|
||||
#[test]
|
||||
fn converts_lsp_pos_to_pos() {
|
||||
macro_rules! test_case {
|
||||
($doc:expr, ($x:expr, $y:expr) => $want:expr) => {
|
||||
let doc = Rope::from($doc);
|
||||
let pos = lsp::Position::new($x, $y);
|
||||
assert_eq!($want, lsp_pos_to_pos(&doc, pos, OffsetEncoding::Utf16));
|
||||
assert_eq!($want, lsp_pos_to_pos(&doc, pos, OffsetEncoding::Utf8))
|
||||
};
|
||||
}
|
||||
|
||||
test_case!("", (0, 0) => Some(0));
|
||||
test_case!("", (0, 1) => None);
|
||||
test_case!("", (1, 0) => None);
|
||||
test_case!("\n\n", (0, 0) => Some(0));
|
||||
test_case!("\n\n", (1, 0) => Some(1));
|
||||
test_case!("\n\n", (1, 1) => Some(2));
|
||||
test_case!("\n\n", (2, 0) => Some(2));
|
||||
test_case!("\n\n", (3, 0) => None);
|
||||
test_case!("test\n\n\n\ncase", (4, 3) => Some(11));
|
||||
test_case!("test\n\n\n\ncase", (4, 4) => Some(12));
|
||||
test_case!("test\n\n\n\ncase", (4, 5) => None);
|
||||
test_case!("", (u32::MAX, u32::MAX) => None);
|
||||
}
|
||||
}
|
||||
File diff suppressed because it is too large
Load Diff
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Reference in New Issue