Macro features 

features!() { /* proc-macro */ }

Proc macro that returns the enabled features, joined by commas, as a string literal.

The value is sourced from the PREBINDGEN_FEATURES compile-time environment variable, which is set by calling prebindgen::init_prebindgen_out_dir() in your crate’s build.rs.

Panics

Emits a compile-time error if PREBINDGEN_FEATURES is not set, which typically means prebindgen::init_prebindgen_out_dir() wasn’t called in build.rs.

Returns

A string literal containing the comma-separated list of enabled features. The string may be empty if no features are enabled.

Example

use prebindgen_proc_macro::features;

pub const ENABLED_FEATURES: &str = features!();