import { Event } from '../../base/common/event';
export interface ISplice<T> {
    readonly start: number;
    readonly deleteCount: number;
    readonly toInsert: T[];
}
export interface ISpliceable<T> {
    splice(start: number, deleteCount: number, toInsert: T[]): void;
}
export interface ISequence<T> {
    readonly elements: T[];
    readonly onDidSplice: Event<ISplice<T>>;
}
export declare class Sequence<T> implements ISequence<T>, ISpliceable<T> {
    readonly elements: T[];
    private readonly _onDidSplice;
    readonly onDidSplice: Event<ISplice<T>>;
    splice(start: number, deleteCount: number, toInsert?: T[]): void;
}
export declare class SimpleSequence<T> implements ISequence<T> {
    private _elements;
    get elements(): T[];
    readonly onDidSplice: Event<ISplice<T>>;
    private disposable;
    constructor(elements: T[], onDidAdd: Event<T>, onDidRemove: Event<T>);
    dispose(): void;
}
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