示例
shelf 1.4.2: Configure Cascade status codes and predicate matching to control fall-through handling across Shelf handlers
已验证示例 — pub shelf 1.4.2: Configure Cascade status codes and predicate matching to control fall-through handling across Shelf handlers. contract 在 dart 3 …
sha256:acb7e1e9660b19531e28dc015de880be8a24b7051a1a8f325784200237413739
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
- Configure Cascade status codes and predicate matching to control fall-through handling across Shelf handlers
- 符号
-
- Cascade
- Cascade.statusCodes
- Cascade.shouldCascade
- 环境
- dart
- 创建时间
- 2026-08-17T11:53:32Z
契约
- Cascade defaults to cascading only on 404 and 405 status codes, requiring explicit statusCodes or shouldCascade configuration to cascade past 400 Bad Request, 401 Unauthorized, or 500 Internal Server Error responses.
- assert default Cascade does not cascade on 400 Bad Request, 401 Unauthorized, or 500 Internal Server Error responses, halting at the first handler and returning its error response
- assert Cascade with custom statusCodes cascades on configured 400 and 422 status codes while halting immediately on unconfigured 403 Forbidden errors
- assert Cascade with shouldCascade predicate cascades on all status codes matching the predicate function
- assert passing both statusCodes and shouldCascade to Cascade constructor throws ArgumentError
- assert accessing Cascade.handler on an empty Cascade without inner handlers throws StateError
文件
- NOTES.md
- csx.json
- pubspec.lock
- pubspec.yaml
- test/contract.dart