lsp_server/
error.rs

1use std::fmt;
2
3use crate::{Notification, Request};
4
5#[derive(Debug, Clone, PartialEq)]
6pub struct ProtocolError(String, bool);
7
8impl ProtocolError {
9    pub(crate) fn new(msg: impl Into<String>) -> Self {
10        ProtocolError(msg.into(), false)
11    }
12
13    pub(crate) fn disconnected() -> ProtocolError {
14        ProtocolError("disconnected channel".into(), true)
15    }
16
17    /// Whether this error occurred due to a disconnected channel.
18    pub fn channel_is_disconnected(&self) -> bool {
19        self.1
20    }
21}
22
23impl std::error::Error for ProtocolError {}
24
25impl fmt::Display for ProtocolError {
26    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
27        fmt::Display::fmt(&self.0, f)
28    }
29}
30
31#[derive(Debug)]
32pub enum ExtractError<T> {
33    /// The extracted message was of a different method than expected.
34    MethodMismatch(T),
35    /// Failed to deserialize the message.
36    JsonError { method: String, error: serde_json::Error },
37}
38
39impl std::error::Error for ExtractError<Request> {}
40impl fmt::Display for ExtractError<Request> {
41    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
42        match self {
43            ExtractError::MethodMismatch(req) => {
44                write!(f, "Method mismatch for request '{}'", req.method)
45            }
46            ExtractError::JsonError { method, error } => {
47                write!(f, "Invalid request\nMethod: {method}\n error: {error}",)
48            }
49        }
50    }
51}
52
53impl std::error::Error for ExtractError<Notification> {}
54impl fmt::Display for ExtractError<Notification> {
55    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
56        match self {
57            ExtractError::MethodMismatch(req) => {
58                write!(f, "Method mismatch for notification '{}'", req.method)
59            }
60            ExtractError::JsonError { method, error } => {
61                write!(f, "Invalid notification\nMethod: {method}\n error: {error}")
62            }
63        }
64    }
65}
lsp_server/error.rs

lsp_server/
error.rs
