rusoto_credential 0.48.0

AWS credential tooling
Documentation 
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use zeroize::Zeroize;

/// Newtype (pattern) to protect secret credentials stored as Strings.
#[derive(Clone)]
pub struct Secret(String);

impl From<String> for Secret {
    fn from(s: String) -> Self {
        Secret(s)
    }
}

/// Allow dereferencing Secrets as &str.
///
/// ```rust
/// # use rusoto_credential::Secret;
/// assert_eq!(Secret::from("hello".to_string()).as_ref(), "hello");
/// ```
impl AsRef<str> for Secret {
    fn as_ref(&self) -> &str {
        self.0.as_str()
    }
}

impl Drop for Secret {
    fn drop(&mut self) {
        let s = &mut self.0;
        s.zeroize();
    }
}

/// Secrets must not leak, so make sure they are not printed.
///
/// ```rust
/// # use rusoto_credential::Secret;
/// assert_eq!(format!("{:?}",Secret::from("hello".to_string())), "\"*******\"");
/// ```
impl std::fmt::Debug for Secret {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        write!(f, "\"*******\"")
    }
}

/// Secrets must not leak, so make sure they are not displayed.
///
/// ```rust
/// # use rusoto_credential::Secret;
/// assert_eq!(format!("{}",Secret::from("hello".to_string())), "*******");
/// ```
impl std::fmt::Display for Secret {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        write!(f, "*******")
    }
}