csskit_lsp/jsonrpc/
error_code.rs

1use serde::{Deserialize, Serialize};
2
3/// An ErrorCode representing either a [JSON-RPC Error Code](https://www.jsonrpc.org/specification#error_object) or [LSP
4/// defined error
5/// code](https://microsoft.github.io/language-server-protocol/specifications/specification-3-16/#errorCodes).
6#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Deserialize, Serialize)]
7#[serde(into = "i32", from = "i32")]
8pub enum ErrorCode {
9	// JSON RPC Generic
10	/// Invalid JSON was received by the server. An error occurred on the server while parsing the JSON text.
11	/// [JSON-RPC defined](https://www.jsonrpc.org/specification#error_object). `-32700`.
12	ParseError,
13
14	/// The JSON sent is not a valid Request object.
15	/// [JSON-RPC defined](https://www.jsonrpc.org/specification#error_object). `-32600`.
16	InvalidRequest,
17
18	/// The method does not exist / is not available.
19	/// [JSON-RPC defined](https://www.jsonrpc.org/specification#error_object). `-32601`.
20	MethodNotFound,
21
22	/// Invalid method parameter(s).
23	/// [JSON-RPC defined](https://www.jsonrpc.org/specification#error_object). `-32602`.
24	InvalidParams,
25
26	/// Internal JSON-RPC error.
27	/// [JSON-RPC defined](https://www.jsonrpc.org/specification#error_object). `-32603`.
28	InternalError,
29
30	/// [JSON RPC Reserved Range Start](https://www.jsonrpc.org/specification#error_object).
31	/// Reserved for implementation-defined server-errors. (`-32000` to `-32099`).
32	ReservedErrorStart,
33
34	/// Error code indicating that a server received a notification or
35	/// request before the server has received the `initialize` request.
36	/// [LSP defined](https://microsoft.github.io/language-server-protocol/specifications/lsp/3.18/specification/#errorCodes). `-32002`.
37	ServerNotInitialized,
38
39	/// [LSP defined](https://microsoft.github.io/language-server-protocol/specifications/lsp/3.18/specification/#errorCodes). `-32001`.
40	UnknownErrorCode,
41
42	/// [JSON RPC Reserved Range End](https://www.jsonrpc.org/specification#error_object).
43	/// Reserved for implementation-defined server-errors. (`-32000` to `-32099`).
44	ReservedErrorEnd,
45
46	/// [LSP Reserved Range Start](https://microsoft.github.io/language-server-protocol/specifications/lsp/3.18/specification/#errorCodes).
47	/// This is the start range of LSP reserved error codes. It doesn't denote a real error code. (`-32899` to `-32800`)
48	LspReservedErrorStart,
49
50	/// The server detected that the content of a document got modified outside normal conditions. A server should NOT
51	/// send this error code if it detects a content change in its unprocessed messages. The result even computed on
52	/// an older state might still be useful for the client.
53	///
54	/// If a client decides that a result is not of any use anymore the client should cancel the request.
55	///
56	/// [LSP defined](https://microsoft.github.io/language-server-protocol/specifications/lsp/3.18/specification/#errorCodes). `-32801`.
57	ContentModified,
58
59	/// The client has canceled a request and a server has detected the cancel.
60	///
61	/// [LSP defined](https://microsoft.github.io/language-server-protocol/specifications/lsp/3.18/specification/#errorCodes). `-32800`.
62	RequestCancelled,
63
64	/// [LSP Reserved Range Start](https://microsoft.github.io/language-server-protocol/specifications/lsp/3.18/specification/#errorCodes).
65	/// This is the start range of LSP reserved error codes. It doesn't denote a real error code. (`-32899` to `-32800`)
66	LspReservedErrorEnd,
67
68	/// The error code is not known.
69	Unknown(i32),
70}
71
72// https://microsoft.github.io/language-server-protocol/specifications/specification-3-16/#responseMessage
73impl From<ErrorCode> for i32 {
74	fn from(value: ErrorCode) -> Self {
75		match value {
76			ErrorCode::ParseError => -32700,
77			ErrorCode::InvalidRequest => -32600,
78			ErrorCode::MethodNotFound => -32601,
79			ErrorCode::InvalidParams => -32602,
80			ErrorCode::InternalError => -32603,
81
82			// JSON RPC Reserved Range
83			ErrorCode::ReservedErrorStart => -32099,
84			ErrorCode::ServerNotInitialized => -32002,
85			ErrorCode::UnknownErrorCode => -32001,
86			ErrorCode::ReservedErrorEnd => -32000,
87
88			// LSP Reserved Range
89			ErrorCode::LspReservedErrorStart => -32899,
90			ErrorCode::ContentModified => -32801,
91			ErrorCode::RequestCancelled => -32800,
92			ErrorCode::LspReservedErrorEnd => -32800,
93
94			ErrorCode::Unknown(code) => code,
95		}
96	}
97}
98
99impl From<i32> for ErrorCode {
100	fn from(value: i32) -> Self {
101		match value {
102			-32700 => ErrorCode::ParseError,
103			-32600 => ErrorCode::InvalidRequest,
104			-32601 => ErrorCode::MethodNotFound,
105			-32602 => ErrorCode::InvalidParams,
106			-32603 => ErrorCode::InternalError,
107			// JSON RPC Reserved Range
108			-32099 => ErrorCode::ReservedErrorStart,
109			-32002 => ErrorCode::ServerNotInitialized,
110			-32001 => ErrorCode::UnknownErrorCode,
111			-32000 => ErrorCode::ReservedErrorEnd,
112
113			// LSP Reserved Range
114			-32899 => ErrorCode::LspReservedErrorStart,
115			-32801 => ErrorCode::ContentModified,
116			-32800 => ErrorCode::RequestCancelled,
117
118			code => ErrorCode::Unknown(code),
119		}
120	}
121}
csskit_lsp/jsonrpc/error_code.rs

csskit_lsp/jsonrpc/
error_code.rs
