import { L10n } from '@syncfusion/ej2-base';
import { FormNode } from '@syncfusion/ej2-form-renderer';
/** @private */
export interface ExpressionEditorOptions {
    host: HTMLElement;
    expression: string;
    availableFields: string[] | FormNode[];
    l10n?: L10n;
    onExpressionChange: (expression: string) => void;
}
/** @private */
export interface ColumnExpressionEditorOptions {
    host: HTMLElement;
    expression: string;
    availableFields: string[];
    label?: string;
    description?: string;
    l10n?: L10n;
    onExpressionChange: (expression: string) => void;
}
/** @private */
export declare class ExpressionEditor {
    private host;
    private expression;
    private availableFields;
    private l10n;
    private onExpressionChange;
    private validator;
    private engine;
    private wrapper;
    private inputGroup;
    private textarea;
    private errorsHost;
    private destroyed;
    constructor(opts: ExpressionEditorOptions);
    /** @private */
    render(): void;
    /** @private */
    destroy(): void;
    /** @private */
    setValue(expression: string): void;
    private handleChange;
    private refresh;
    private paintErrors;
}
/** @private */
export declare class ColumnExpressionEditor {
    private host;
    private inputValue;
    private availableFields;
    private label;
    private description;
    private l10n;
    private onExpressionChange;
    private validator;
    private engine;
    private wrapper;
    private textarea;
    private errorsHost;
    private destroyed;
    constructor(opts: ColumnExpressionEditorOptions);
    /** @private */
    render(): void;
    destroy(): void;
    /** @private */
    setValue(expression: string): void;
    private handleInputChange;
    private computeErrors;
    private paintErrors;
}