tower-util 0.1.0

Utilities for working with `Service`. 
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use tower_layer::Layer;

/// A no-op middleware.
///
/// When wrapping a `Service`, the `Identity` layer returns the provided
/// service without modifying it.
#[derive(Debug, Default, Clone)]
pub struct Identity {
    _p: (),
}

impl Identity {
    /// Create a new `Identity` value
    pub fn new() -> Identity {
        Identity { _p: () }
    }
}

/// Decorates a `Service`, transforming either the request or the response.
impl<S> Layer<S> for Identity {
    type Service = S;

    fn layer(&self, inner: S) -> Self::Service {
        inner
    }
}