demo/xinhuaribao/lib/http/model_parser.dart

import 'dart:core';

/// @author: bo.zeng
/// @email: cnhbwds@gmail.com
/// @date: 2025 2025/4/18 11:39
/// @description:自动判断 JSON 是单对象 还是 List，并解析

/// model_parser.dart

class ModelParser {
  /// 自动解析 JSON：
  /// - 如果是 Map，就解析成 T
  /// - 如果是 List，就解析成 List
  static List<T> parseList<T>(
    dynamic json,
    T Function(Map<String, dynamic>) fromJson,
  ) {
    if (json is List) {
      return json.map((e) => fromJson(e as Map<String, dynamic>)).toList();
    } else {
      throw Exception("预期是 List，但实际是 ${json.runtimeType}");
    }
  }

  static T parseObject<T>(
    dynamic json,
    T Function(Map<String, dynamic>) fromJson,
  ) {
    if (json is Map<String, dynamic>) {
      return fromJson(json);
    } else {
      throw Exception("预期是 Map<String, dynamic>，但实际是 ${json.runtimeType}");
    }
  }
}