vs_protocol/
error.rs

1//! Crate-wide parse errors.
2//!
3//! Every fallible parser in this crate returns [`ParseError`]. Variants
4//! carry enough context to identify what went wrong without echoing the
5//! whole input — the wire is meant to be machine-readable, so the error
6//! is the structured diagnostic, not the line.
7
8use crate::codes::UnknownCode;
9
10#[derive(Debug, thiserror::Error, PartialEq, Eq)]
11#[non_exhaustive]
12pub enum ParseError {
13    #[error("empty input")]
14    EmptyInput,
15
16    #[error("indent jumped from depth {from} to depth {to} on line {line}")]
17    IndentJump { from: usize, to: usize, line: usize },
18
19    #[error("malformed line {line}: {message}")]
20    MalformedLine { line: usize, message: &'static str },
21
22    #[error("invalid ref {raw:?}")]
23    InvalidRef { raw: String },
24
25    #[error("invalid position {raw:?}")]
26    InvalidPosition { raw: String },
27
28    #[error("missing field: {field}")]
29    MissingField { field: &'static str },
30
31    #[error("unknown code: {0}")]
32    UnknownCode(#[from] UnknownCode),
33
34    #[error("invalid envelope: {detail}")]
35    InvalidEnvelope { detail: &'static str },
36
37    #[error("invalid state token {raw:?}: expected 16 lowercase hex chars")]
38    InvalidToken { raw: String },
39
40    #[error("invalid attribute {raw:?}")]
41    InvalidAttribute { raw: String },
42
43    #[error("invalid request: {detail}")]
44    InvalidRequest { detail: &'static str },
45
46    #[error("invalid label {raw:?}: contains an unterminated quoted span")]
47    UnterminatedQuote { raw: String },
48
49    #[error("delta apply: ref {0} not present in source tree")]
50    ApplyMissingRef(u32),
51
52    #[error("delta apply: ref {0} already exists in source tree")]
53    ApplyDuplicateRef(u32),
54
55    #[error("delta apply: parent ref {0} not present")]
56    ApplyMissingParent(u32),
57}
58
59pub type Result<T> = std::result::Result<T, ParseError>;
vs_protocol/error.rs

vs_protocol/
error.rs
