clipanion_core/
errors.rs

1#[derive(thiserror::Error, Debug, Clone, PartialEq, Eq)]
2pub enum CommandError {
3    #[error("The option `{0}` expects a value")]
4    Custom(String),
5
6    #[error("Missing required option argument")]
7    MissingOptionArguments,
8
9    #[error("Unsupported option name")]
10    UnknownOption,
11
12    #[error("Invalid option name")]
13    InvalidOption,
14
15    #[error("Missing required positional argument")]
16    MissingPositionalArguments,
17
18    #[error("Extraneous positional arguments")]
19    ExtraneousPositionalArguments,
20}
21
22#[derive(thiserror::Error, Debug, Clone, PartialEq, Eq)]
23pub enum Error {
24    #[error("The provided arguments are ambiguous and need to be refined further. Possible options are:")]
25    AmbiguousSyntax(Vec<usize>),
26
27    #[error("{1}")]
28    CommandError(usize, CommandError),
29
30    #[error("Something unexpected happened; this seems to be a bug in the CLI framework itself")]
31    InternalError,
32
33    #[error("The provided arguments don't match any known syntax; use `--help` to get a list of possible options")]
34    NotFound(Vec<usize>),
35}
36
37#[derive(thiserror::Error, Debug)]
38pub enum BuildError {
39    #[error("Commands can only define a single rest parameter")]
40    MultipleRestParameters,
41
42    #[error("Commands aren't allowed to define optional parameters after a rest parameter")]
43    OptionalParametersAfterRest,
44
45    #[error("Commands aren't allowed to define optional parameters after trailing positionals")]
46    OptionalParametersAfterTrailingPositionals,
47
48    #[error("Commands aren't allowed to define rest parameters after trailing positionals")]
49    RestAfterTrailingPositionals,
50
51    #[error("TODO: I don't remember the details of this error right at this moment")]
52    ArityTooHighForNonBindingOption,
53}
clipanion_core/errors.rs

clipanion_core/
errors.rs
