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

/**
 * 跳转页面参数
 * @TODO: 当前类目前主要用于生成文档
 */
export class DestinationParam extends ExpressionNode {
    /**
     * 逻辑节点类型
     */
    @immutable()
    public readonly type: LOGIC_TYPE = LOGIC_TYPE.DestinationParam;
    /**
     * 参数名
     */
    @immutable()
    public readonly pageParamKey: Identifier = undefined;
    /**
     * 参数值
     */
    @immutable()
    public readonly pageParamKeyValue: ExpressionNode = undefined;
    /**
     * 生成 JS 脚本
     */
    toScript() {
        return this.pageParamKey.toScript() + (this.pageParamKeyValue ? '=${' + this.pageParamKeyValue.toScript() + '}' : '=');
    }
}