bundle_standard_core/
errors.rs

1//! Typed errors with stable codes.
2
3use thiserror::Error;
4
5#[derive(Debug, Error)]
6pub enum PackError {
7    #[error("E_INVALID_FORMAT: format '{0}' not supported (only 'gtpack-legacy' in Phase A)")]
8    InvalidFormat(String),
9    #[error("E_INVALID_CONFIG: {0}")]
10    InvalidConfig(String),
11    #[error("E_ZIP: {0}")]
12    Zip(String),
13    #[error("E_SERDE: {0}")]
14    Serde(String),
15}
16
17impl PackError {
18    pub fn code(&self) -> &'static str {
19        match self {
20            PackError::InvalidFormat(_) => "E_INVALID_FORMAT",
21            PackError::InvalidConfig(_) => "E_INVALID_CONFIG",
22            PackError::Zip(_) => "E_ZIP",
23            PackError::Serde(_) => "E_SERDE",
24        }
25    }
26}
27
28impl From<serde_json::Error> for PackError {
29    fn from(e: serde_json::Error) -> Self {
30        PackError::Serde(e.to_string())
31    }
32}
33
34#[cfg(test)]
35mod tests {
36    use super::*;
37    #[test]
38    fn codes_stable() {
39        assert_eq!(
40            PackError::InvalidFormat("x".into()).code(),
41            "E_INVALID_FORMAT"
42        );
43        assert_eq!(
44            PackError::InvalidConfig("bad".into()).code(),
45            "E_INVALID_CONFIG"
46        );
47        assert_eq!(PackError::Zip("zip oops".into()).code(), "E_ZIP");
48        assert_eq!(PackError::Serde("decode".into()).code(), "E_SERDE");
49    }
50
51    #[test]
52    fn display_includes_code_prefix() {
53        assert_eq!(
54            PackError::InvalidFormat("custom".into()).to_string(),
55            "E_INVALID_FORMAT: format 'custom' not supported (only 'gtpack-legacy' in Phase A)"
56        );
57        assert_eq!(
58            PackError::InvalidConfig("missing".into()).to_string(),
59            "E_INVALID_CONFIG: missing"
60        );
61        assert_eq!(PackError::Zip("entry".into()).to_string(), "E_ZIP: entry");
62        assert_eq!(
63            PackError::Serde("decode".into()).to_string(),
64            "E_SERDE: decode"
65        );
66    }
67
68    #[test]
69    fn from_serde_json_error() {
70        let bad: Result<serde_json::Value, _> = serde_json::from_str("{not json");
71        let err: PackError = bad.unwrap_err().into();
72        assert_eq!(err.code(), "E_SERDE");
73        assert!(matches!(err, PackError::Serde(_)));
74    }
75}
bundle_standard_core/errors.rs

bundle_standard_core/
errors.rs
