Method reserve

cranelift/codegen/src/ranges.rs:44–49

Reserves capacity for at least `additional` more ranges to be added to this list.

(&mut self, mut additional: usize)

    /// Reserves capacity for at least `additional` more ranges to be
    /// added to this list.
    pub fn reserve(&mut self, mut additional: usize) {
        if additional > 0 && self.ranges.is_empty() {
            additional = additional.saturating_add(1);
        }
        self.ranges.reserve(additional);
    }

    /// Get the range at the specified index.
    pub fn get(&self, index: usize) -> Range<usize> {