cbindgen thingy

.gitignore

/target
**/*.rs.bk
Cargo.lock

Cargo.toml

[package]
name = "free-thingy"
version = "0.1.0"
authors = ["Richo Healey <[email protected]>"]
edition = "2018"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]

cbindgen.toml

header = "/* c bindings to the authlib-rs library */"
# include_guard = "AUTHLIB_RS_BINDINGS_H"
language = "C"
[parse.expand]
crates = ["free-thingy"]
[enum]
rename_variants = "QualifiedScreamingSnakeCase"

rust-toolchain

nightly

src-lib.rs

pub struct TokenSet;

macro_rules! make_free_fn {
    ($name:ident, $ty:ident) => {
        #[no_mangle]
        pub unsafe extern "C" fn $name(ptr: *mut $ty) {
            if ptr.is_null() {
                return;
            }
            Box::from_raw(ptr);
        }
    }
}

make_free_fn!(tokenset, TokenSet);