A modern runtime for JavaScript and TypeScript.
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Crate
strum
Derive macros for enums — iteration, display, and string conversion.
What it is
strum provides derive macros that add practical functionality to Rust enums: EnumIter to iterate all variants, Display for string formatting, EnumString to parse from strings, and AsRefStr for string views. strum_macros is the companion proc-macro crate.
Why it is commonly used
Used when enum variants need to be converted to and from strings, iterated, or counted — CLI subcommands, configuration keys, state machines, and any enum that requires programmatic traversal.
705
Repositories
91%
Actively maintained
638
Updated ≤ 30 days
3.0M
Total stars
606
Owners
Counted from the Cargo.toml manifests of the 705 indexed repositories that declare strum as a dependency — not download counts. Dependency data last verified 2026-08-13.
Often used with
Crates that show up unusually often in strum projects. The most distinctive pairings rank first — crates these projects use far more than the average indexed Rust project does, not just crates that are popular everywhere. Each percentage is the share of strum projects that also use it.
strum_macros39.3%mockall10.6%serde_with27%derive_more22.8%pretty_assertions16.9%rstest14.3%serial_test10.5%indoc11.3%either13.5%humantime16.5%paste20%tikv-jemallocator14.2%insta13.5%moka10.6%itertools50.4%serde_bytes10.2%tracing-opentelemetry14.9%prometheus13%aws-config12.2%pin-project10.5%opentelemetry_sdk18.6%opentelemetry-otlp17.6%opentelemetry19.7%num_cpus16.2%
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