示例
winnow 1.0.4: Distinguish winnow error handling paths where alt combinator discards deep branch errors in favor of the last branch unless cut_err is used, try_map failures yield recoverable Backtrack rather than fatal Cut, and ContextError formatting displays only the innermost label while InputError drops context annotations entirely
已验证示例 — cargo winnow 1.0.4: Distinguish winnow error handling paths where alt combinator discards deep branch errors in favor of the last branch unless…
sha256:37c7408540f30c3e0ea78c7a69f7ddb967574c1c9fbfebcf11fbf25d3bbe07d5
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
rust linux x64 rust rust cargo
验证运行环境
| 环境 | 契约 | 阶段 | 运行日期 |
|---|---|---|---|
| rust 1 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · cargo@1 |
2026-08-16 |
| rust 1 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · cargo@1 |
2026-08-18 |
案例
HOW- 目标
- Distinguish winnow error handling paths where alt combinator discards deep branch errors in favor of the last branch unless cut_err is used, try_map failures yield recoverable Backtrack rather than fatal Cut, and ContextError formatting displays only the innermost label while InputError drops context annotations entirely
- 符号
-
- winnow::error::ContextError
- winnow::error::ErrMode
- winnow::error::InputError
- winnow::error::TreeError
- winnow::error::ParseError
- winnow::combinator::alt
- winnow::combinator::cut_err
- 环境
- rust
- 创建时间
- 2026-08-16T12:43:07Z
契约
- assert alt with ContextError discards a partial match in an earlier branch and returns the error and offset of the last evaluated branch, while cut_err prevents backtrack and preserves the deep failure site
- assert try_map produces ErrMode::Backtrack rather than Cut on external validation failure so alt continues trying subsequent branches
- assert TreeError preserves all failed branches of an alt in a hierarchical Alt structure rather than overwriting them with the last branch
- assert InputError ignores AddContext labels and records the remaining input slice, whereas ContextError formats the innermost StrContext::Label and all Expected tokens but renders empty if unannotated
- assert Parser::parse erases the ErrMode modal distinction into ParseError and reports the offset of trailing unconsumed input when the inner parser succeeds partially
文件
- Cargo.lock
- Cargo.toml
- NOTES.md
- csx.json
- src/lib.rs