import { Observable } from 'rxjs';
/**
 * 自定义的表达式事件服务类
 * 功能：定义表达式内部的事件发布与监听接口
 */
export declare class ExpressionEventService {
    private windowClosed;
    windowClosed$: Observable<string>;
    closeWindow(): void;
    private _expressionsource;
    setExpression(expressionentity: any): void;
    getExpression(): Observable<any>;
    private _insertexpression;
    insertExpression(expression: string): void;
    currentExpression(): Observable<any>;
    private _clearexpression;
    pushclearExpression(): void;
    clearExpression(): Observable<any>;
    private _clearFuncSelect;
    clearFuncSelect(): void;
    subClearFuncSelect(): Observable<any>;
    private _clearVarSelect;
    clearVarSelect(): void;
    subClearVarSelect(): Observable<any>;
}