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lambda_calculus

v3.4.0 Growing

A simple, zero-dependency implementation of pure lambda calculus in Safe Rust

CC0-1.0 Edition 2021
#mathematics#functional#combinators#lambda#calculus

Quick Verdict

  • โœ“Stable API (3.x for 9+ years)
  • โœ“Tiny footprint (41KB, 0 deps)

Security

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Downloads
66.7K
Dependents
27
Releases
42
Size
41KB

Deep Insights

๐Ÿ“Š
Stable downloads

242 downloads in the last 30 days (8/day). Volume is roughly flat compared to the previous period.

โœ…
Stable for 9+ years

The API has been stable (1.x) for over 9 years with 42 releases. This level of maturity means you can depend on it without worrying about breaking changes.

๐Ÿชถ
Zero dependencies

lambda_calculus has no external dependencies โ€” minimal supply chain risk and fast compile times.

๐Ÿ“
Compact crate

At 40KB, lambda_calculus is lightweight. Small crate size correlates with focused, well-scoped functionality.

๐ŸŒŸ
Used by top crates

Notable dependents include blc, gorf-core, gorf-kiselyov, gorf-blc, gorf-blc2. When high-quality crates choose lambda_calculus, it's a strong quality signal.

Health Breakdown

Maintenance 9/25

Recency, release consistency, active ratio

Quality 23/25

Yanked ratio, deps, size, maturity, features

Community 7/20

Reverse deps, ownership, ecosystem

Popularity 6/15

Downloads, momentum, growth trend

Documentation 13/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
0/day avg
02/263/164/34/215/95/26

Top Dependents

Version Adoption

v3.3.0
30%
v2.2.0
29%
v3.0.2
16%
v3.0.0
13%
v3.2.2
12%

Release Timeline

10 releasessince 2018
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2018
1
2019
1
2020
2021
2
2022
1
2023
3
2024
1
2025
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2026
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Feature Flags

default =["encoding"]

encoding*backslash_lambda

README

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Maintainers

Dependencies
0
direct dependencies
Dependents
27
crates depend on lambda_calculus

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