import type { BinaryExpression, BinaryOperator, Comment, SourceLocation } from 'estree';
import type { StepperExpression, StepperPattern } from '..';
import { StepperBaseNode } from '../../interface';
import type { RedexInfo } from '../..';
export declare class StepperBinaryExpression extends StepperBaseNode<BinaryExpression> implements BinaryExpression {
    readonly operator: BinaryOperator;
    readonly left: StepperExpression;
    readonly right: StepperExpression;
    constructor(operator: BinaryOperator, left: StepperExpression, right: StepperExpression, leadingComments?: Comment[], trailingComments?: Comment[], loc?: SourceLocation | null, range?: [number, number]);
    static create(node: BinaryExpression): StepperBinaryExpression;
    isContractible(redex: RedexInfo): boolean;
    isOneStepPossible(redex: RedexInfo): boolean;
    contract(redex: RedexInfo): StepperExpression;
    oneStep(redex: RedexInfo): StepperExpression;
    substitute(id: StepperPattern, value: StepperExpression, redex: RedexInfo): StepperExpression;
    freeNames(): string[];
    allNames(): string[];
    rename(before: string, after: string): StepperExpression;
}