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#[cfg(target_os = "macos")]
#[macro_use]
extern crate objc;

#[cfg(target_os = "macos")]
#[macro_use]
extern crate objc_foundation;

use thiserror::Error;

#[derive(Error, Debug)]
pub enum Error {
    #[error("system error or I/O failure")]
    IoFailure(#[from] std::io::Error),

    #[error("the implementation returns malformed strings")]
    InvalidString(#[from] std::string::FromUtf8Error),

    #[error("failed to parse the string returned from implementation")]
    UnexpectedOutput(&'static str),

    #[error("cannot find any dialog implementation (kdialog/zenity)")]
    NoImplementation,

    #[error("the implementation reports error")]
    ImplementationError(String),
}

pub type Result<T> = std::result::Result<T, Error>;

pub(crate) mod dialog;
pub(crate) mod dialog_impl;
pub(crate) mod util;

mod message;
pub use message::*;

mod file;
pub use file::*;