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synstructure

v0.13.2 Growing

Helper methods and macros for custom derives

MIT Edition 2018
#macros#enum#derive#syn#expand_substructure

Quick Verdict

  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (1.3K crates depend on it)
  • โœ“Permissive license (MIT)

Security

Checking security advisories...
Downloads
375.8M
Dependents
1.3K
Releases
29
Size
19KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

39.5M downloads in the last 30 days (1.3M/day), up 23% from the previous period.

๐Ÿ”—
Widely adopted

1.3K crates depend on synstructure. Strong ecosystem adoption means battle-tested code and long-term stability.

โš ๏ธ
Single maintainer risk

synstructure has only 1 owner despite 1.3K dependents. This is a bus-factor concern โ€” consider the implications for long-term support.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 9+ years old, synstructure hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿ“
Compact crate

At 19KB, synstructure is lightweight. Small crate size correlates with focused, well-scoped functionality.

๐ŸŒŸ
Used by top crates

Notable dependents include yoke-derive, zerofrom-derive, asn1-rs-derive, failure_derive, abscissa_derive. When high-quality crates choose synstructure, it's a strong quality signal.

Health Breakdown

Maintenance 8/25

Recency, release consistency, active ratio

Quality 15/25

Yanked ratio, deps, size, maturity, features

Community 12/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 12/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
1.1M/day avg+65%
0500K1.0M1.5M12/291/162/32/213/113/28

Top Dependents

Version Adoption

v0.13.2
41%
v0.13.1
30%
v0.12.6
24%
v0.12.4
4%
v0.12.3
1%

Release Timeline

29 releases1 yankedsince 2016
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2018
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2026
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Feature Flags

default =["proc-macro"]

proc-macro*

README

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Maintainers

Dependencies
4
direct dependencies
Dependents
1.3K
crates depend on synstructure

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