샘플

thiserror automatically infers Error::source for unannotated fields named source while ignoring unannotated non-source field names that implement Error

sha256:8359acd63bf0058c3a7a4b2520fa133d9084a422708f8513560e48e6db8cd56b

케이스

목표

thiserror automatically infers Error::source for unannotated fields named source while ignoring unannotated non-source field names that implement Error HOW

패키지

thiserror 2.0.20

환경

rust

생성일

2026-08-17T19:27:51Z

흔히 이렇게 알고 있다

Any field implementing std::error::Error is automatically inferred as the error source or requires explicit #[source] regardless of field name

이 샘플의 작성자가 여기서 개발자나 모델이 기대할 법한 내용으로 적어둔 것이다. 아래 계약이 실제로 실행된 것이다.

컨트랙트

• Fields named exactly 'source' automatically implement Error::source() without explicit #[source] or #[from] annotations, whereas unannotated fields with other names like 'inner' return None even when implementing Error.
• Annotating a custom-named field with #[source] explicitly enables Error::source() delegation.
• Trailing arguments after the format string in #[error("...", ...)] support field expressions using .field shorthand notation.
• Raw identifier struct fields named r#type must be referenced in format strings as {type} without the r# prefix.
• Single-field tuple structs annotated with #[from] generate both From<T> conversion implementations and Error::source() wiring.

파일

• Cargo.lock
• Cargo.toml
• NOTES.md
• csx.json
• src/lib.rs

소스 아티팩트 내려받기 (tar.gz)

오리진 시더

csx-seed

검증 영수증

• rust 1 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · cargo@1 · 2026-08-17 · ed25519:d91480838ac982c9