more-options 3.4.0

Provides support for options
Documentation 
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#![doc = include_str!("../README.md")]
#![cfg_attr(docsrs, feature(doc_cfg))]

/// Represents the type alias for an options reference.
#[cfg(not(all(feature = "di", feature = "async")))]
pub type Ref<T> = std::rc::Rc<T>;

/// Represents the type alias for an options reference.
#[cfg(all(not(feature = "di"), feature = "async"))]
pub type Ref<T> = std::sync::Arc<T>;

/// Represents the type alias for an options reference.
#[cfg(all(feature = "di", feature = "async"))]
pub type Ref<T> = di::Ref<T>;

// trait aliases are unstable so define a custom
// marker that can bridge the gap
//
// REF: https://github.com/rust-lang/rust/issues/41517

#[cfg(not(feature = "async"))]
pub trait Value: Sized {}

#[cfg(not(feature = "async"))]
impl<T> Value for T {}

#[cfg(feature = "async")]
pub trait Value: Sized + Send + Sync {}

#[cfg(feature = "async")]
impl<T: Send + Sync> Value for T {}

mod cache;
mod configure;
mod factory;
mod manager;
mod monitor;
mod option;
mod snapshot;
mod token;
mod validate;

#[cfg(feature = "di")]
mod di_ext;

#[cfg(feature = "di")]
mod builder;

#[cfg(feature = "cfg")]
mod cfg_ext;

pub use cache::*;
pub use configure::*;
pub use factory::*;
pub use manager::*;
pub use monitor::*;
pub use option::*;
pub use snapshot::*;
pub use token::*;
pub use validate::*;

#[cfg(feature = "di")]
#[cfg_attr(docsrs, doc(cfg(feature = "di")))]
pub use builder::*;

/// Contains options extension methods.
#[cfg(any(feature = "di", feature = "cfg"))]
pub mod ext {
    use super::*;

    #[cfg(feature = "di")]
    #[cfg_attr(docsrs, doc(cfg(feature = "di")))]
    pub use di_ext::*;

    #[cfg(feature = "cfg")]
    #[cfg_attr(docsrs, doc(cfg(feature = "cfg")))]
    pub use cfg_ext::*;
}