openvet_policy/
error.rs

1/// Error returned by the policy parser and validator.
2#[derive(Debug, thiserror::Error)]
3pub enum PolicyError {
4    /// I/O error reading the policy file.
5    #[error("io error: {0}")]
6    Io(#[from] std::io::Error),
7    /// TOML parse error.
8    #[error("toml parse error: {0}")]
9    Toml(#[from] toml::de::Error),
10    /// A requirement expression failed to parse (bad token,
11    /// trailing tokens, unbalanced parens, empty input, etc.).
12    #[error("expression: {0}")]
13    ExprParse(String),
14    /// A requirement's condition expression failed to parse. Carries
15    /// the requirement name as context; the wrapped error is the
16    /// underlying [`ExprParse`](Self::ExprParse).
17    #[error("requirement {name:?}: {source}")]
18    RequirementExpression {
19        /// The requirement whose expression failed to parse.
20        name: String,
21        /// The underlying parse error.
22        #[source]
23        source: Box<PolicyError>,
24    },
25    /// An `[[override]]` block references a requirement name that
26    /// isn't defined in `[requirement]`.
27    #[error("override references unknown requirement {name:?}")]
28    UnknownRequirement {
29        /// The name referenced by the override.
30        name: String,
31    },
32    /// An `[alias]` entry isn't in `log:claim-name` form (missing
33    /// the `:` separator).
34    #[error("alias {canonical:?}: entry {entry:?} must be `log:claim-name`")]
35    InvalidAliasEntry {
36        /// The canonical claim name the alias was being defined for.
37        canonical: String,
38        /// The offending right-hand-side entry.
39        entry: String,
40    },
41}
42
43/// Convenience type alias for `Result<T, PolicyError>`.
44pub type Result<T, E = PolicyError> = std::result::Result<T, E>;
openvet_policy/error.rs

openvet_policy/
error.rs
