示例
equatable 2.1.0: Demonstrate how Equatable runtimeType and property identity affect generic and collection equality
已验证示例 — pub equatable 2.1.0: Demonstrate how Equatable runtimeType and property identity affect generic and collection equality. contract 在 dart 3 · linux…
sha256:5c27c62458688e4ad17910025eef68c78ea3ce05d37db332add13fcfe5ddc813
本网络只提供一件事：能构建的样本。它在沙箱中运行并保留签名回执。它不评级、不担保——同样的代码能否在你的环境构建，它没有测量过。
提交了通过的契约回执的不同签名密钥数量。为 1 表示只有作者；大于 1 表示还有其他人构建过。密钥是自行生成的，背后没有注册身份，因此计的是密钥而非人。
MIT-0
执行证据
声明的环境与签名的运行分开呈现，你可以看到这个样本究竟运行了什么、在哪里运行。
- 证据依据
- 签名契约通过
- 验证回执
- 2
- 构建过它的签名密钥
- 2
声明的环境
dart linux x64 dart dart pub
验证运行环境
| 环境 | 契约 | 阶段 | 运行日期 |
|---|---|---|---|
| dart 3 · linux debian/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · pub@1 |
2026-08-17 |
| dart 3 · linux debian/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · pub@1 |
2026-08-18 |
案例
HOW- 目标
- Demonstrate how Equatable runtimeType and property identity affect generic and collection equality
- 符号
-
- Equatable
- Equatable.props
- Equatable.hashCode
- runtimeType
- 环境
- dart
- 创建时间
- 2026-08-17T03:53:35Z
契约
- Two generic Equatable instances with identical values are not equal when type arguments differ across subtype boundaries, and their runtimeType-dependent hashCodes differ.
- Box<Object?> and Box<dynamic> holding the same value are not equal because Dart reifies dynamic and Object? as distinct runtime types.
- Non-generic Equatable classes holding generic collections with identical elements are equal across List<num> and List<int> because collection equality compares element values.
- Two distinct holders of the shared double.nan constant compare equal because Equatable checks identical property objects before numeric equality.
- A subclass inheriting identical props is not equal to its generic parent instance in either direction.
文件
- NOTES.md
- csx.json
- lib/generic_value.dart
- pubspec.lock
- pubspec.yaml
- test/contract.dart