import type { Comment, SourceLocation, VariableDeclaration, VariableDeclarator } from 'estree';
import { type StepperExpression, type StepperPattern, undefinedNode } from '..';
import { StepperBaseNode } from '../../interface';
import type { RedexInfo } from '../..';
export declare class StepperVariableDeclarator extends StepperBaseNode<VariableDeclarator> implements VariableDeclarator {
    readonly id: StepperPattern;
    readonly init: StepperExpression | null | undefined;
    constructor(id: StepperPattern, init: StepperExpression | null | undefined, leadingComments?: Comment[] | undefined, trailingComments?: Comment[] | undefined, loc?: SourceLocation | null | undefined, range?: [number, number] | undefined);
    static create(node: VariableDeclarator): StepperVariableDeclarator;
    isContractible(redex: RedexInfo): boolean;
    isOneStepPossible(redex: RedexInfo): boolean;
    contract(redex: RedexInfo): StepperVariableDeclarator;
    oneStep(redex: RedexInfo): StepperVariableDeclarator;
    substitute(id: StepperPattern, value: StepperExpression, redex: RedexInfo): StepperBaseNode;
    freeNames(): string[];
    allNames(): string[];
    rename(before: string, after: string): StepperVariableDeclarator;
}
export declare class StepperVariableDeclaration extends StepperBaseNode<VariableDeclaration> implements VariableDeclaration {
    readonly declarations: StepperVariableDeclarator[];
    readonly kind: VariableDeclaration['kind'];
    constructor(declarations: StepperVariableDeclarator[], kind: VariableDeclaration['kind'], leadingComments?: Comment[] | undefined, trailingComments?: Comment[] | undefined, loc?: SourceLocation | null | undefined, range?: [number, number] | undefined);
    static create(node: VariableDeclaration): StepperVariableDeclaration;
    isContractible(): boolean;
    isOneStepPossible(redex: RedexInfo): boolean;
    contract(redex: RedexInfo): typeof undefinedNode;
    contractEmpty(redex: RedexInfo): void;
    oneStep(redex: RedexInfo): StepperVariableDeclaration | typeof undefinedNode;
    substitute(id: StepperPattern, value: StepperExpression, redex: RedexInfo): StepperBaseNode;
    freeNames(): string[];
    allNames(): string[];
    rename(before: string, after: string): StepperVariableDeclaration;
}