/**
 * Wave-4 incremental algorithm helpers.
 *
 * Self-contained: the closure-expansion fixpoint, occurrence merging,
 * and edge stitching for the incremental rebuild path. All functions
 * here are called by `catalog-builder.ts`; nothing else in the
 * orchestrator subtree depends on them.
 */
import type { GraphLanguageAdapter, DiscoverOutput, ParsedProject, WalkOutput } from '../../lang-adapter/types.js';
import type { Catalog, CallEdge, FunctionOccurrence } from '../../types.js';
export interface ClosureInput {
    readonly adapter: GraphLanguageAdapter;
    readonly discovery: DiscoverOutput;
    readonly cachedCatalog: Catalog;
    readonly parsedProject: ParsedProject;
    readonly changedFilesAbs: readonly string[];
}
export interface ClosureOutput {
    readonly walked: WalkOutput;
    readonly closureRel: ReadonlySet<string>;
}
/**
 * Expand the re-walk closure to a fixpoint. Starts with the directly
 * changed files; on each iteration walks the closure, finds hashes
 * that vanished, scans cached edges for any that still point at
 * vanished hashes, and adds those callers to the closure. Stops when
 * no new dependents are discovered.
 *
 */
export declare function expandClosureToFixpoint(input: ClosureInput): Promise<ClosureOutput>;
/**
 * Merge occurrences: for files in `closureRel`, take the freshly-
 * walked entries; for everything else, take the cached entries.
 * Re-keys by simpleName so the catalog shape matches the full-rebuild
 * output.
 */
export declare function mergeOccurrences(cachedCatalog: Catalog, walkedFunctions: Record<string, FunctionOccurrence[]>, closureRel: ReadonlySet<string>): Record<string, readonly FunctionOccurrence[]>;
/**
 * Stitch resolved edges into closure files; restore cached edges for
 * unchanged files. The merged catalog already has cached occurrences
 * for unchanged files; we just preserve their `calls` array.
 */
export declare function mergeResolvedAndCachedEdges(merged: Catalog, cached: Catalog, edgesByOwner: ReadonlyMap<string, readonly CallEdge[]>, closureRel: ReadonlySet<string>): Record<string, readonly FunctionOccurrence[]>;
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