Method iter

cranelift/codegen/src/ranges.rs:61–68

Visit ranges in unspecified order, paired with the index each range occurs at.

(
        &self,
    )

    /// Visit ranges in unspecified order, paired with the index each
    /// range occurs at.
    pub fn iter(
        &self,
    ) -> impl DoubleEndedIterator<Item = (usize, Range<usize>)> + ExactSizeIterator + '_ {
        self.ranges
            .array_windows()
            .enumerate()
            .map(|(index, [lo, hi])| (self.map_index(index), *lo as usize..*hi as usize))
    }

    /// Reverse this list of ranges, so that the first range is at the
    /// last index and the last range is at the first index.