import { FormControl as AngularFormControl, FormControlState, FormControlStatus, ValidationErrors } from '@angular/forms';
import { Observable } from 'rxjs';
import { AbstractControlOptions, AsyncValidatorFn, ValidatorFn } from './validation';
export interface FormControlOptions<T> extends AbstractControlOptions<T> {
    nonNullable?: boolean;
    initialValueIsDefault?: boolean;
}
export interface FormControl<TValue = any> extends AngularFormControl<TValue> {
    value$: Observable<TValue>;
    errors$: Observable<ValidationErrors | null>;
    enabled$: Observable<boolean>;
    pristine$: Observable<boolean>;
    valid$: Observable<boolean>;
    status$: Observable<FormControlStatus>;
    disabled$: Observable<boolean>;
    dirty$: Observable<boolean>;
    invalid$: Observable<boolean>;
    validValue$: Observable<TValue>;
    setValidators(newValidator: ValidatorFn<TValue> | ValidatorFn<TValue>[] | null): void;
    setAsyncValidators(newValidator: AsyncValidatorFn<TValue> | AsyncValidatorFn<TValue>[] | null): void;
    setEnabled(enabled: boolean): void;
    setDisabled(disabled: boolean): void;
}
export interface _FormControlCtor {
    prototype: FormControl;
    new (): FormControl;
    new <T = any>(value: FormControlState<T> | T, opts: FormControlOptions<T> & {
        nonNullable: true;
    }): FormControl<T>;
    new <T = any>(value: FormControlState<T | null> | T, validatorOrOpts?: ValidatorFn<T | null> | ValidatorFn<T | null>[] | FormControlOptions<T | null> | null, asyncValidator?: AsyncValidatorFn<T | null> | AsyncValidatorFn<T | null>[] | null): FormControl<T | null>;
}
export declare const FormControl: _FormControlCtor;