Trait Env 

pub trait Env {
    // Required method
    fn var(&self, key: &str) -> Result<Cow<'_, str>, VarError>;
}

Abstract over std::env for ConfigEnv

Required Methods

fn var(&self, key: &str) -> Result<Cow<'_, str>, VarError>

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl Env for HashMap<String, String>

fn var(&self, key: &str) -> Result<Cow<'_, str>, VarError>

Implementors

impl Env for NoEnv

impl Env for StdEnv