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feat(subject): Adds into_string method to Subject #1161

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Nov 15, 2023
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feat(subject): Adds into_string method to Subject #1161

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19 changes: 19 additions & 0 deletions async-nats/src/subject.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,25 @@ impl Subject {
pub fn as_str(&self) -> &str {
self
}

/// Turns the `Subject` into a `String`, consuming it.
///
/// Note that this function is not implemented as `From<Subject> for String` as the conversion
/// from the underlying type could involve an allocation. If the `Subject` is owned data, it
/// will not allocate, but if it was constructed from borrowed data, it will.
///
/// # Examples
///
/// ```
/// use async_nats::Subject;
///
/// let s = Subject::from("foo");
/// let sub = s.into_string();
/// ```
pub fn into_string(self) -> String {
// SAFETY: We have guaranteed that the bytes in the `Subject` struct are valid UTF-8.
unsafe { String::from_utf8_unchecked(self.bytes.into()) }
}
}

impl<'a> From<&'a str> for Subject {
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