import { InjectionToken, InputSignal, ModelSignal, Type } from '@angular/core';
import { AbstractControl, ControlValueAccessor, ValidationErrors, Validator } from '@angular/forms';
import { ValidatorError } from './errors';
import * as i0 from "@angular/core";
export declare function inputProviders(cls: Type<AbstractInput<any>>): ({
    provide: InjectionToken<readonly ControlValueAccessor[]>;
    useExisting: Type<any>;
    multi: true;
} | {
    provide: InjectionToken<readonly (Validator)[]>;
    useExisting: Type<any>;
    multi: true;
})[];
export declare abstract class AbstractInput<TValue> implements ControlValueAccessor, Validator {
    required: InputSignal<boolean>;
    disabled: ModelSignal<boolean>;
    private onChange;
    private onTouch;
    private validator;
    private currentValue;
    setDisabledState(isDisabled: boolean): void;
    registerOnChange(fn: any): void;
    registerOnTouched(fn: any): void;
    writeValue(value: TValue): void;
    registerOnValidatorChange(fn: () => void): void;
    validate(control: AbstractControl): ValidationErrors | null;
    runValidation(): void;
    updateValue(value: TValue): void;
    protected abstract setValue(value: TValue): void;
    protected abstract validateValue(): Array<ValidatorError>;
    protected abstract valueHasChanged(currentValue: TValue, newValue: TValue): boolean;
    static ɵfac: i0.ɵɵFactoryDeclaration<AbstractInput<any>, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<AbstractInput<any>, never, never, { "required": { "alias": "required"; "required": false; "isSignal": true; }; "disabled": { "alias": "disabled"; "required": false; "isSignal": true; }; }, { "disabled": "disabledChange"; }, never, never, true, never>;
}