Method split_front

src/pointer.rs:181–207

Splits the `Pointer` into the first `Token` and a remainder `Pointer`.

(&self)

    /// Splits the `Pointer` into the first `Token` and a remainder `Pointer`.
    pub fn split_front(&self) -> Option<(Token, &Self)> {
        if self.is_root() {
            return None;
        }
        self.0[1..]
            .find('/')
            .map_or_else(
                || {
                    (
                        // SAFETY: source pointer is encoded
                        unsafe { Token::from_encoded_unchecked(&self.0[1..]) },
                        Self::root(),
                    )
                },
                |idx| {
                    let (front, back) = self.0[1..].split_at(idx);
                    (
                        // SAFETY: source pointer is encoded
                        unsafe { Token::from_encoded_unchecked(front) },
                        // SAFETY: we split at a token boundary, so back is
                        // valid pointer.
                        unsafe { Self::new_unchecked(back) },
                    )
                },
            )
            .into()
    }

    /// Splits the `Pointer` at the given index if the character at the index is
    /// a separator slash (`'/'`), returning `Some((head, tail))`. Otherwise,