Method as_slice

atomic-canonical/src/node.rs:126–133

The criteria as a slice, whatever the shape on disk. Callers use this instead of matching, so the legacy variant stays invisible to them.

(&self)

    /// The criteria as a slice, whatever the shape on disk. Callers use this
    /// instead of matching, so the legacy variant stays invisible to them.
    pub fn as_slice(&self) -> &[String] {
        match self {
            // `from_ref` lets a scalar masquerade as a one-element slice without
            // allocating — and, crucially, without rewriting the stored form.
            Self::One(one) => std::slice::from_ref(one),
            Self::Many(many) => many,
        }
    }

    /// True when no criteria are referenced. Drives `skip_serializing_if`, so an
    /// empty list is omitted exactly as it was under the plain `Vec`.