wrapgen is a tool to automatically generate Rust wrappers around C functions called via FFI.
It will wrap pointer returns in an Option and int returns in a Result.
As of now, wrapgen only works if your functions adhere to the C convention of returning
0 on a successful run and another value otherwise.
wrapgenYou can use wrapgen as a standalone binary:
wrapgen input.rs output.rs
where input.rs contains one function declaration per line
or include it in your build.rs file:
rust
fn main() {
WrapGen::new("input1.rs")
.add_file("input2.rs")
.function("fn my_test_fn(arg1: cty::c_int) -> cty::c_int")
.prefix("rs_")
.use_core(false)
.generate("output.rs");
}