Method next_id

crates/core/src/slab.rs:373–376

(&self)

    /// Get the `Id` that will be returned for the next allocation in this slab.
    #[inline]
    pub fn next_id(&self) -> Id {
        let index = self.free.unwrap_or_else(|| EntryIndex::new(self.len()));
        Id(index)
    }

    #[inline(never)]
    #[cold]