import { ValidationError, ValidatorFunction } from '../models';
export declare class FormControl {
    private _value;
    private _defaultValue;
    private _validators;
    touched: boolean;
    valid: boolean;
    error: ValidationError;
    /**
     * Setter for the control value
     * @memberof FormControl
     */
    set value(value: any);
    /**
     * Getter for the control value
     * @type {*}
     * @memberof FormControl
     */
    get value(): any;
    /**
     * Initialize the FormControl instance
     * @param value - value for the control
     * @param validators - validator or array of validators for the control
     */
    constructor(value: any, validators?: ValidatorFunction[] | ValidatorFunction);
    /**
     * Sets a new value for the control
     * @param value - new value
     */
    setValue(value: any): void;
    /**
     * Patches the value of the control
     * @param value - new value
     */
    patchValue(value: any): void;
    /**
     * Marks the control as touched
     */
    markAsTouched(): void;
    /**
     * Marks the control as touched
     */
    markAllAsTouched(): void;
    /**
     * Marks the control as untouched
     */
    markAsUntouched(): void;
    /**
     * Sets validators to this control
     * If it has any validators, they will be overwritten
     * @param validators - new validator or array of validators
     */
    setValidators(validators: ValidatorFunction | ValidatorFunction[]): void;
    /**
     * Add validators to this control
     * If it has any validators, they will be added to the existing ones
     * @param validators - new validator or array of validators
     */
    addValidators(validators: ValidatorFunction | ValidatorFunction[]): void;
    /**
     * Removes validators from this control
     * @param validators - validator or array of validators to be removed
     */
    removeValidators(validators: ValidatorFunction | ValidatorFunction[]): void;
    /**
     * Checks if validator exist in this control
     * @param validators - validator to check
     * @returns if validator exist returns true, if not returns false
     */
    hasValidator(validator: ValidatorFunction): boolean;
    /**
     * Removes all validators from this control
     */
    clearValidators(): void;
    /**
     * Sets error to this control
     * It also set validation to be falsy
     * @param error - error to be set
     */
    setError(error: ValidationError): void;
    /**
     * Checks if the control have specified error
     * @param error - name of error
     * @returns if error exist returns true, if not returns false
     */
    hasError(error: string): boolean;
    /**
     * Resets the control to the initial value,
     * setting it as untouched, resetting error
     * and setting validators to the initial value
     */
    reset(): void;
    /**
     * Private method that checks if the control is valid
     * and setting error and control validity
     */
    private _validateControl;
    /**
     * Private method for removing validator from the control
     * @param validator - validator to be removed
     */
    private _removeValidator;
}