import type { Ast } from '../parser/types';
export declare class Cache {
    private cache;
    private firstEntry;
    private lastEntry;
    private _size;
    private maxSize;
    constructor(maxSize: number | null);
    getContent(): Record<string, Ast>;
    get size(): number;
    get(key: string): Ast | undefined;
    clear(): void;
    has(key: string): boolean;
    set(key: string, value: Ast): void;
    private dropFirstEntry;
}