cabal-foreign-library 0.1.0

A library for Cargo build scripts to build and link a Cabal foreign-library as a Rust crate.
Documentation 
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use std::io;

/// Type for errors that may occur.
#[derive(Debug, thiserror::Error)]
pub enum Error {
    #[error("cabal invocation error")]
    CabalError(#[source] InvocationError),
    #[error("ghc-pkg invocation error")]
    GHCPkgError(#[source] InvocationError),

    #[error("build error")]
    BuildError(#[source] Option<io::Error>),
    #[error("bindings error")]
    BindingsError(#[from] BindingsError),
}

/// An error that occurs when invoking `cabal` or `ghc-pkg`.
#[derive(Debug, thiserror::Error)]
pub enum InvocationError {
    #[error("resolution error")]
    ResolutionError(#[from] which::Error),
    #[error("i/o error")]
    IoError(#[from] io::Error),
}

/// An error that occurs when generating bindings.
#[derive(Debug, thiserror::Error)]
pub enum BindingsError {
    #[error("i/o error")]
    IoError(#[from] io::Error),

    #[error("bindgen error")]
    BindgenError(#[from] bindgen::BindgenError),
}