Lib.rs

Cargo Features

[dependencies]
once-cell-regex = { version = "0.2.1", default-features = false, features = ["std", "parking_lot", "perf", "unicode"] }

default = perf, std, unicode

These default features are set whenever once-cell-regex is added without default-features = false somewhere in the dependency tree.

std default

Enables std of once_cell and regex

once_cell:

Enables once_cell::sync module.

parking_lot

Enables parking_lot of once_cell

once_cell:

Uses parking_lot to implement once_cell::sync::OnceCell.
This makes no speed difference, but makes each OnceCell<T>
up to 16 bytes smaller, depending on the size of the T.

perf default

Enables perf of regex

regex:

PERFORMANCE FEATURES

Enables all default performance features. Note that this specifically does not include perf-dfa-full, because it leads to higher compile times and bigger binaries, and the runtime performance improvement is not obviously worth it.

unicode default

Enables unicode of regex

regex:

UNICODE DATA FEATURES

Enables all Unicode features. This expands if new Unicode features are added.

once-cell-regex has 5 features without comments.