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hash-chain

v0.3.2 Growing

A tiered hashmap and hashset implementation that allows for easily representing lexically scoped variables

MIT Edition 2018
Data structures #collections#lexical#hashmap#scope

Quick Verdict

  • โœ•Not updated for 5+ years
  • !Pre-1.0: API may have breaking changes
  • โœ“Tiny footprint (11KB, 2 deps)
  • โœ“Permissive license (MIT)

Security

Checking security advisories...
Downloads
31.6K
Dependents
39
Releases
12
Size
11KB

Deep Insights

๐Ÿ“‰
Download decline

558 downloads in the last 30 days, down 49% from the previous period. May indicate migration to alternatives.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 6+ years old, hash-chain hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿชถ
Minimal dependencies

Only 2 direct dependencies. Lean dependency tree means faster builds and lower supply chain risk.

๐Ÿ“
Compact crate

At 10KB, hash-chain is lightweight. Small crate size correlates with focused, well-scoped functionality.

๐ŸŒŸ
Used by top crates

Notable dependents include ressa, cxx2flow, ressa_r. When high-quality crates choose hash-chain, it's a strong quality signal.

Health Breakdown

Maintenance 4/25

Recency, release consistency, active ratio

Quality 14/25

Yanked ratio, deps, size, maturity, features

Community 9/20

Reverse deps, ownership, ecosystem

Popularity 5/15

Downloads, momentum, growth trend

Documentation 9/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
32/day avg-64%
010020030012/291/162/32/213/113/28

Top Dependents

Most downloaded crates that depend on hash-chain

Version Adoption

v0.3.2
75%
v0.2.5
8%
v0.1.0
6%
v0.3.0
6%
v0.2.4
6%

Release Timeline

12 releases1 yankedsince 2019
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2021
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Yanked

Feature Flags

imutable

README

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Maintainers

Dependencies
2
direct dependencies
Dependents
39
crates depend on hash-chain

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