/**
 * 3-way entity matching for structural merge.
 *
 * Matches top-level entities across the three file versions (base / ours /
 * theirs) using their `signature` as a stable key. Each entity triple is
 * assigned a status that describes what happened to it during the merge.
 */
import type { TopLevelEntity } from "./entities.js";
export type EntityMatchStatus = 
/** Text identical in all three versions */
"unchanged"
/** Changed in ours, unchanged in theirs */
 | "ours-only-change"
/** Changed in theirs, unchanged in ours */
 | "theirs-only-change"
/** Both sides made the same change (or both deleted) */
 | "both-changed-same"
/** Both sides changed differently — unresolvable at entity level */
 | "both-changed-diff"
/** Added only by ours (not in base, not in theirs) */
 | "ours-added"
/** Added only by theirs (not in base, not in ours) */
 | "theirs-added"
/** Deleted by ours (was in base and theirs) */
 | "ours-deleted"
/** Deleted by theirs (was in base and ours) */
 | "theirs-deleted";
export interface EntityMatch {
    signature: string;
    status: EntityMatchStatus;
    base: TopLevelEntity | null;
    ours: TopLevelEntity | null;
    theirs: TopLevelEntity | null;
}
/**
 * Compute 3-way entity matches between base, ours, and theirs.
 *
 * The returned array covers every unique signature found across all three
 * versions. Order follows: base order → ours-only → theirs-only sigs.
 *
 * @param base   - Entities extracted from the base (ancestor) version
 * @param ours   - Entities extracted from our version (current branch)
 * @param theirs - Entities extracted from their version (incoming branch)
 */
export declare function matchEntities(base: TopLevelEntity[], ours: TopLevelEntity[], theirs: TopLevelEntity[]): EntityMatch[];
//# sourceMappingURL=matching.d.ts.map