sovran_mcp/
errors.rs

1use crate::messaging::{JsonRpcError, JsonRpcResponse};
2use std::error::Error as StdError;
3use std::fmt;
4use thiserror::Error;
5use url::ParseError;
6
7#[derive(Debug, Error)]
8pub enum McpError {
9    // Transport Errors
10    #[error("I/O error: {0}")]
11    Io(#[from] std::io::Error),
12    #[error("Transport not open")]
13    TransportNotOpen,
14    #[error("Failed to spawn process")]
15    ProcessSpawnError,
16    #[error("Stdin not available")]
17    StdinNotAvailable,
18    #[error("Stdout not available")]
19    StdoutNotAvailable,
20    #[error("Stderr not available")]
21    StderrNotAvailable,
22
23    // Protocol Errors
24    #[error("JSON-RPC error: {0}")]
25    JsonRpc(#[from] JsonRpcError),
26    #[error("Serialization error: {0}")]
27    SerializationError(#[from] serde_json::Error),
28    #[error("URL parse error: {0}")]
29    UrlParse(#[from] ParseError),
30    #[error("Missing result in response")]
31    MissingResult,
32
33    // Client Errors
34    #[error("Client not initialized")]
35    ClientNotInitialized,
36    #[error("Unsupported capability: {0}")]
37    UnsupportedCapability(&'static str),
38    #[error("Request timeout for method '{method}': {source}")]
39    RequestTimeout {
40        method: String,
41        #[source]
42        source: std::sync::mpsc::RecvTimeoutError,
43    },
44    #[error("Command '{command}' failed: {error}")]
45    CommandFailed {
46        command: String,
47        error: JsonRpcError,
48    },
49    #[error("Failed to send response for request {id}: {source}")]
50    SendError {
51        id: u64,
52        #[source]
53        source: std::sync::mpsc::SendError<JsonRpcResponse>,
54    },
55    #[error("Terminating the client thread failed.")]
56    ThreadJoinFailed,
57
58    // Other Errors
59    #[error("{0}")]
60    Other(String),
61}
62
63impl fmt::Display for JsonRpcError {
64    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
65        write!(f, "JSON-RPC error {}: {}", self.code, self.message)
66    }
67}
68
69impl StdError for JsonRpcError {}
sovran_mcp/errors.rs

sovran_mcp/
errors.rs
