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Error

batpak_macros

Derive Macro Error 

Source 
#[derive(Error)]
{
    // Attributes available to this derive:
    #[error]
    #[source]
    #[from]
}
Expand description

Derives core::fmt::Display + std::error::Error for an error enum from a per-variant #[error("...")] format literal — a thiserror-lite.

Every variant needs exactly one #[error("literal {field}")]. A field annotated #[source] becomes Error::source(); #[from] additionally generates impl From. Enums only; see crates/macros/src/error.rs for the full contract (byte-identical rendering, explicit source wiring).