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mod client;
mod transport;
use jsonrpc_core as jsonrpc;
use lsp_types as lsp;
pub use client::Client;
pub use lsp::{Position, Url};
use serde::{Deserialize, Serialize};
use thiserror::Error;
#[derive(Error, Debug)]
pub enum Error {
#[error("protocol error: {0}")]
Rpc(#[from] jsonrpc::Error),
#[error("failed to parse: {0}")]
Parse(#[from] serde_json::Error),
#[error("request timed out")]
Timeout,
#[error(transparent)]
Other(#[from] anyhow::Error),
}
pub mod util {
use super::*;
pub fn lsp_pos_to_pos(doc: &helix_core::RopeSlice, pos: lsp::Position) -> usize {
let line = doc.line_to_char(pos.line as usize);
let line_start = doc.char_to_utf16_cu(line);
doc.utf16_cu_to_char(pos.character as usize + line_start)
}
}
/// A type representing all possible values sent from the server to the client.
#[derive(Debug, PartialEq, Clone, Deserialize, Serialize)]
#[serde(deny_unknown_fields)]
#[serde(untagged)]
enum Message {
/// A regular JSON-RPC request output (single response).
Output(jsonrpc::Output),
/// A notification.
Notification(jsonrpc::Notification),
/// A JSON-RPC request
Call(jsonrpc::Call),
}
#[derive(Debug, PartialEq, Clone)]
pub enum Notification {
PublishDiagnostics(lsp::PublishDiagnosticsParams),
}
impl Notification {
pub fn parse(method: &str, params: jsonrpc::Params) -> Notification {
use lsp::notification::Notification as _;
match method {
lsp::notification::PublishDiagnostics::METHOD => {
let params: lsp::PublishDiagnosticsParams = params
.parse()
.expect("Failed to parse PublishDiagnostics params");
// TODO: need to loop over diagnostics and distinguish them by URI
Notification::PublishDiagnostics(params)
}
_ => unimplemented!("unhandled notification: {}", method),
}
}
}
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