import { immutable } from '../../decorators';
import { Identifier } from '../expressions/Identifier';
import { ExpressionNode, LogicNode, LOGIC_TYPE } from '../LogicItem';
import { SwitchCase } from './SwitchCase';

/**
 * 循环分支
 * @TODO: 当前类目前主要用于生成文档
 */
export class ForEachStatement extends ExpressionNode {
    /**
     * 逻辑节点类型
     */
    @immutable()
    public readonly type: LOGIC_TYPE = LOGIC_TYPE.ForEachStatement;
    /**
     * 循环列表
     */
    @immutable()
    public readonly each: ExpressionNode = undefined;
    /**
     * 循环项名称
     */
    @immutable()
    public readonly item: Identifier = undefined;
    /**
     * 循环项索引
     */
    @immutable()
    public readonly index: Identifier = undefined;
    /**
     * 起始值
     */
    @immutable()
    public readonly start: ExpressionNode = undefined;
    /**
     * 结束值
     */
    @immutable()
    public readonly end: ExpressionNode = undefined;
    /**
     * 循环体
     */
     @immutable()
     public readonly body: Array<ExpressionNode> = [];
    /**
     * 生成 JS 脚本
     */
    toScript() {
        return '';
    }
}