/**
 * File content hashing for cache invalidation
 */
/**
 * Hash cache for file contents
 */
export declare class FileHashCache {
    private cache;
    /**
     * Calculate and cache hash for file content
     */
    hash(filePath: string, content: string): string;
    /**
     * Get cached hash for file
     */
    get(filePath: string): string | undefined;
    /**
     * Check if file content has changed
     */
    hasChanged(filePath: string, content: string): boolean;
    /**
     * Update hash for file
     */
    update(filePath: string, content: string): string;
    /**
     * Remove file from cache
     */
    remove(filePath: string): void;
    /**
     * Clear entire cache
     */
    clear(): void;
    /**
     * Get cache size
     */
    size(): number;
    /**
     * Calculate SHA-256 hash of content
     */
    private calculateHash;
}
export declare const fileHashCache: FileHashCache;
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