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

/**
 * 逻辑二元表达式
 * @TODO: 当前类目前主要用于生成文档
 */
export class LogicalExpression extends ExpressionNode {
    /**
     * 逻辑节点类型
     */
    @immutable()
    public readonly type: LOGIC_TYPE = LOGIC_TYPE.LogicalExpression;
    /**
     * 左边项
     */
    @immutable()
    public readonly left: ExpressionNode = undefined;
    /**
     * 右边项
     */
    @immutable()
    public readonly right: ExpressionNode = undefined;
    /**
     * 运算符
     */
    @immutable()
    public readonly operator: string = undefined;
    /**
     * 生成 JS 脚本
     */
    toScript() {
        return `${this.left.toScript()} ${this.operator} ${this.right.toScript()}`;
    }
}