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use serde::{Deserialize, Serialize};
use std::fmt;
#[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize, Deserialize)]
#[serde(untagged)]
pub enum RequestId {
Number(u64),
String(String),
}
#[derive(Debug, Clone, Deserialize)]
pub struct IncomingMessage {
pub jsonrpc: V2,
pub id: Option<RequestId>,
pub method: String,
pub params: serde_json::Value,
}
#[derive(Debug, Clone, Serialize)]
pub struct NotificationMessage<T> {
pub jsonrpc: V2,
pub method: &'static str,
pub params: T,
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ResponseMessage<T, D> {
pub jsonrpc: V2,
pub id: Option<RequestId>,
pub result: Option<T>,
pub error: Option<ResponseError<D>>,
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum Code {
ParseError = -32700,
InvalidRequest = -32600,
MethodNotFound = -32601,
InvalidParams = -32602,
InternalError = -32603,
ServerErrorStart = -32099,
ServerErrorEnd = -32000,
ServerNotInitialized = -32002,
UnknownErrorCode = -32001,
RequestCancelled = -32800,
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ResponseError<D> {
pub code: Code,
pub message: String,
pub data: Option<D>,
}
#[derive(Debug, PartialEq, Clone, Copy, Hash, Eq)]
pub struct V2;
impl serde::Serialize for V2 {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: serde::Serializer,
{
serializer.serialize_str("2.0")
}
}
impl<'a> serde::Deserialize<'a> for V2 {
fn deserialize<D>(deserializer: D) -> Result<V2, D::Error>
where
D: serde::Deserializer<'a>,
{
return deserializer.deserialize_identifier(Visitor);
struct Visitor;
impl<'a> serde::de::Visitor<'a> for Visitor {
type Value = V2;
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("a string")
}
fn visit_str<E>(self, value: &str) -> Result<Self::Value, E>
where
E: serde::de::Error,
{
match value {
"2.0" => Ok(V2),
_ => Err(serde::de::Error::custom("invalid version")),
}
}
}
}
}