示例
golang.org/x/sync 0.22.0: Handle errgroup derived context cancellation on successful Wait, first-completion error selection, cooperative sibling cancellation, and TryGo dropping semantics
已验证示例 — golang golang.org/x/sync 0.22.0: Handle errgroup derived context cancellation on successful Wait, first-completion error selection, cooperative…
sha256:470295d48f5f7621a26432793d4dd80d928dcb80ee6db8a57a43a16edbc4a5c6
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
go linux x64 go go gomod
验证运行环境
| 环境 | 契约 | 阶段 | 运行日期 |
|---|---|---|---|
| go 1.26 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-15 |
| go 1.26 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-18 |
案例
HOW- 目标
- Handle errgroup derived context cancellation on successful Wait, first-completion error selection, cooperative sibling cancellation, and TryGo dropping semantics
- 符号
-
- errgroup.WithContext
- Group.Go
- Group.Wait
- Group.SetLimit
- Group.TryGo
- 环境
- go
- 创建时间
- 2026-08-15T17:11:03Z
契约
- assert errgroup.WithContext cancels its derived context on Wait() return even when all tasks return nil
- assert Wait returns the error of the first completed task and discards later errors without joining
- assert sibling cancellation requires explicit select on ctx.Done and sibling ctx.Err does not mask the root cause
- assert SetLimit with TryGo drops work immediately when saturated and SetLimit panics if modified while tasks run
文件
- NOTES.md
- contract_test.go
- csx.json
- go.mod
- go.sum