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//! Configuration types for the diff engine.
use crate::matching::CrossEcosystemConfig;
/// Configuration for large SBOM optimization.
#[derive(Debug, Clone)]
pub struct LargeSbomConfig {
/// Minimum component count to enable LSH-based matching
pub lsh_threshold: usize,
/// Cross-ecosystem matching configuration
pub cross_ecosystem: CrossEcosystemConfig,
/// Per-component candidate budget, same value on both sides of the
/// `lsh_threshold` size gate. Above the gate it bounds the TOTAL across
/// all strategies (index + LSH + cross-ecosystem); below the gate it
/// bounds the index candidates (cross-ecosystem candidates there are
/// budgeted separately by `CrossEcosystemConfig::max_candidates`)
pub max_candidates: usize,
}
impl Default for LargeSbomConfig {
fn default() -> Self {
Self {
lsh_threshold: 500,
cross_ecosystem: CrossEcosystemConfig::default(),
// Matches the budget the sub-threshold path has always used, so
// candidate volume no longer jumps ~3.5x (50 -> up to 175) when
// an SBOM crosses the size gate (candidates are quality-ranked,
// so the marginal recall of slots 51..100 is negligible next to
// their cost).
max_candidates: 50,
}
}
}
impl LargeSbomConfig {
/// Check if cross-ecosystem matching is enabled.
#[must_use]
pub const fn enable_cross_ecosystem(&self) -> bool {
self.cross_ecosystem.enabled
}
/// Aggressive optimization for very large SBOMs (1000+)
#[must_use]
pub fn aggressive() -> Self {
Self {
lsh_threshold: 300,
cross_ecosystem: CrossEcosystemConfig::default(),
max_candidates: 25,
}
}
/// Conservative settings (for accuracy over speed)
#[must_use]
pub fn conservative() -> Self {
Self {
lsh_threshold: 1000,
cross_ecosystem: CrossEcosystemConfig::disabled(),
max_candidates: 150,
}
}
}