[−][src]Crate wrapgen
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.
How to use wrapgen
You 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:
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"); }
Structs
WrapGen | The builder struct to create wrappers.
Create an instance, add the files,
types and functions you want to wrap
and finally call |
WrapperType | The representation of a pointer type to wrap.
If you wrap a pointer type |