Method register

src/compression.rs:374–389

Registers a new compressor. The compressor's ID (returned by `algo.id()`) determines its slot in the registry. If a compressor with the same ID is already registered, it will be overwritten.

(&mut self, algo: Box<dyn Compressor>)

    /// The compressor's ID (returned by `algo.id()`) determines its slot in the registry.
    /// If a compressor with the same ID is already registered, it will be overwritten.
    pub fn register(&mut self, algo: Box<dyn Compressor>) {
        let id = algo.id() as usize;

        // Ensure the vector is large enough to hold the new ID.
        if id >= self.algorithms.len() {
            self.algorithms.resize_with(id + 1, || None);
        }

        // `resize_with` guarantees the index is valid.
        let slot = self
            .algorithms
            .get_mut(id)
            .expect("Registry vector resized but index not found. This is a bug.");

        *slot = Some(algo);
    }

    /// Retrieves a compressor by its ID.
    ///