Trait EnvProvider 

pub trait EnvProvider {
    // Required methods
    fn var(&self, name: &str) -> Option<String>;
    fn set_var(&mut self, name: &str, value: &str);
}

Trait for environment variable providers.

Required Methods

fn var(&self, name: &str) -> Option<String>

fn set_var(&mut self, name: &str, value: &str)

Dyn Compatibility

This trait is dyn compatible.

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

Implementations on Foreign Types

impl EnvProvider for HashMap<String, String>

fn var(&self, name: &str) -> Option<String>

fn set_var(&mut self, name: &str, value: &str)

Implementors

impl EnvProvider for ProcessEnvProvider