factorio_frontend/
error.rs

1#[derive(Debug, thiserror::Error, Clone, PartialEq, Eq)]
2pub enum FrontendError {
3    #[error("failed to parse Rust source: {0}")]
4    Syn(String),
5
6    #[error("unsupported item `{item}` at {location}")]
7    UnsupportedItem { item: String, location: String },
8
9    #[error("unsupported statement at {location}")]
10    UnsupportedStatement { location: String },
11
12    #[error("unsupported expression at {location}")]
13    UnsupportedExpression { location: String },
14
15    #[error("unsupported type `{ty}` at {location}")]
16    UnsupportedType { ty: String, location: String },
17
18    #[error("unsupported operator at {location}")]
19    UnsupportedOperator { location: String },
20
21    #[error("expected an identifier pattern at {location}")]
22    ExpectedIdentifierPattern { location: String },
23
24    #[error("expected an identifier assignment target at {location}")]
25    ExpectedIdentifierAssignmentTarget { location: String },
26
27    #[error("let binding requires an initializer at {location}")]
28    MissingLetInitializer { location: String },
29
30    #[error("unsupported macro `{name}` at {location}")]
31    UnsupportedMacro { name: String, location: String },
32
33    #[error("format string `{template}` expects {expected} argument(s), got {found} at {location}")]
34    FormatArgumentMismatch {
35        template: String,
36        expected: usize,
37        found: usize,
38        location: String,
39    },
40
41    #[error(
42        "module `{module}` must be marked with `factorio_rs::control_mod!`, `#[factorio_rs::control]`, or live under `src/control/`, `src/shared/`, or `src/data/`"
43    )]
44    InvalidModuleStage { module: String },
45
46    #[error("event handlers are only allowed in control-stage modules, found in `{module}`")]
47    EventOutsideControlStage { module: String },
48
49    #[error("invalid event filter at {location}")]
50    InvalidEventFilter { location: String },
51
52    #[error("unsupported event filter method `{method}` at {location}")]
53    UnsupportedEventFilterMethod { method: String, location: String },
54
55    #[error("could not resolve locale key `{path}` to a string constant in this module")]
56    LocaleKeyUnresolved { path: String },
57
58    #[error("invalid locale entry: {message}")]
59    InvalidLocale { message: String },
60}
61
62pub type FrontendResult<T> = Result<T, FrontendError>;
63
64impl From<syn::Error> for FrontendError {
65    fn from(error: syn::Error) -> Self {
66        Self::Syn(error.to_string())
67    }
68}
factorio_frontend/error.rs

factorio_frontend/
error.rs
