Lib.rs

Cargo Features

[dependencies]
higher = { version = "0.2.0", default-features = false, features = ["std", "effect", "io", "test"] }

default = effect, io, std

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

std default io test?

effect default = futures

io default = futures, std

Affects higher::io…

test = std

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

futures effect io