/**
 * LSP Result Cache
 *
 * LRU cache for LSP responses to avoid redundant server calls.
 */
import type { LSPCacheOptions } from './lsp.types.js';
/**
 * LRU cache for LSP results
 */
export declare class LSPResultCache {
    private readonly cache;
    private readonly options;
    constructor(options?: Partial<LSPCacheOptions>);
    /**
     * Get a cached result
     */
    get<T>(key: string): null | T;
    /**
     * Set a cached result
     */
    set<T>(key: string, value: T): void;
    /**
     * Invalidate entries for a file (e.g., when file is modified)
     */
    invalidateFile(filePath: string): void;
    /**
     * Clear the entire cache
     */
    clear(): void;
    /**
     * Get cache statistics
     */
    getStats(): {
        maxEntries: number;
        size: number;
        ttlMs: number;
    };
    /**
     * Generate a cache key for an LSP request
     */
    static makeKey(method: string, filePath: string, ...extra: Array<number | string>): string;
}
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