Method extend

crates/wtf8/src/lib.rs:592–598

(&mut self, iter: T)

/// like concatenating ill-formed UTF-16 strings effectively would.
impl Extend<CodePoint> for Wtf8Buf {
    fn extend<T: IntoIterator<Item = CodePoint>>(&mut self, iter: T) {
        let iterator = iter.into_iter();
        let (low, _high) = iterator.size_hint();
        // Lower bound of one byte per code point (ASCII only)
        self.bytes.reserve(low);
        iterator.for_each(move |code_point| self.push(code_point));
    }
}

impl Extend<char> for Wtf8Buf {