import { ParserAdapter, ParserType } from '../types';
/**
 * Parser pool for reusing parser instances
 * Reduces overhead of creating new parsers for each file
 */
export declare class ParserPool {
    private pools;
    private maxPoolSize;
    private stats;
    constructor(maxPoolSize?: number);
    /**
     * Get a parser adapter from the pool or create a new one
     */
    getAdapter(parserType: ParserType, filePath?: string): ParserAdapter;
    /**
     * Release an adapter back to the pool
     */
    releaseAdapter(parserType: ParserType, adapter: ParserAdapter, filePath?: string): void;
    /**
     * Clear all pools
     */
    clear(): void;
    /**
     * Get pool statistics
     */
    getStats(): {
        hitRate: number;
        poolSizes: {
            key: string;
            size: number;
        }[];
        created: number;
        reused: number;
        released: number;
    };
    /**
     * Generate pool key from parser type and file path
     */
    private getPoolKey;
}
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