Package · crates.io
proc-macro2
crates.io · v1.0.107 · MIT OR Apache-2.0
A substitute implementation of the compiler's `proc_macro` API to decouple token-based libraries from the procedural macro use case.
Tentative categories were assigned with moderate confidence (0.5 to 0.75): they are shown, but they do not count toward a category’s momentum. How categories work
Install
cargo add proc-macro2Adoption
- Downloads (90 days)
- 428.5M
- Observeddownloads / 90 days
- Popularity
- Top 1% on crates.io
- Derived100th percentile within crates.io
- Dependents
- 16.4K
- Observedpackages that depend on it
- All-time downloads
- 1.8B
- Observedsince first publish
- Maintenance
- 0.77
- DerivedRelease cadence and recency, 0 to 1
- Releases per year
- 18
- 163 versions over its life
Growth by period
Derived by Crest of Tech from two observations of crates.io’s own figure, a period apart. Nothing is stored or estimated: without an observation near the period’s start, the period is still collecting.
- 7 days
- Collectinghistory
- Collecting
- 30 days
- Collectinghistory
- Collecting
- 90 days
- Collectinghistory
- Collecting
- 1 year
- Collectinghistory
- Collecting
Adoption history
Adoption historydownloads / 90 days
Observations in this range began OCT 5, 2026. The chart appears after 7 observations; 2 so far. Collecting history.
Table of observations (13)
| Day | downloads / 90 days | Dependents |
|---|---|---|
| OCT 24, 2026 | 428,505,027 | 16,350 |
| OCT 5, 2026 | 388,490,941 | 15,868 |
| OCT 4, 2026 | Not observed | Not observed |
| OCT 3, 2026 | Not observed | Not observed |
| OCT 2, 2026 | Not observed | Not observed |
| OCT 1, 2026 | Not observed | Not observed |
| SEP 30, 2026 | Not observed | Not observed |
| SEP 29, 2026 | Not observed | Not observed |
| SEP 28, 2026 | Not observed | Not observed |
| SEP 27, 2026 | Not observed | Not observed |
| SEP 26, 2026 | Not observed | Not observed |
| SEP 25, 2026 | Not observed | Not observed |
| SEP 24, 2026 | Not observed | Not observed |
Facts from the registry
- Latest version
- v1.0.107
- 163 versions
- First published
- JUL 6, 2017
- Last release
- JUL 19, 2026
- 3mo ago
- Licence
- MIT OR Apache-2.0
Repository
Not in the Crest catalog
dtolnay/proc-macro2 (GitHub, opens in a new tab)
The catalog tracks GitHub repositories with more than 500 stars; this one has no Crest page, so its figures are not shown here.
Dependencies latest version · v1.0.107
Runtime 1
- unicode-ident
^1.0
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Related news
No published news event mentions this package or its repository yet.