import type { Comment, ExpressionStatement, SourceLocation } from 'estree';
import type { StepperExpression, StepperPattern } from '..';
import type { StepperBaseNode } from '../../interface';
export declare class StepperExpressionStatement implements ExpressionStatement, StepperBaseNode {
    type: 'ExpressionStatement';
    expression: StepperExpression;
    leadingComments?: Comment[] | undefined;
    trailingComments?: Comment[] | undefined;
    loc?: SourceLocation | null | undefined;
    range?: [number, number] | undefined;
    constructor(expression: StepperExpression, leadingComments?: Comment[] | undefined, trailingComments?: Comment[] | undefined, loc?: SourceLocation | null | undefined, range?: [number, number] | undefined);
    static create(node: ExpressionStatement): StepperExpressionStatement;
    isContractible(): boolean;
    isOneStepPossible(): boolean;
    contract(): StepperExpressionStatement;
    contractEmpty(): void;
    oneStep(): StepperExpressionStatement;
    substitute(id: StepperPattern, value: StepperExpression): StepperBaseNode;
    freeNames(): string[];
    allNames(): string[];
    rename(before: string, after: string): StepperExpressionStatement;
}