language-servers/roc
1
0
Fork 0
mirror of https://github.com/roc-lang/roc.git synced 2025-09-28 14:24:45 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 6

proof of concept

Browse source
This commit is contained in:
Folkert 2021-08-15 13:21:14 +02:00
parent 6741d93517
commit d8e38ef2ac
3 changed files with 62 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

15
examples/hello-rust/platform/src/lib.rs
View file

@ -2,7 +2,9 @@
use core::ffi::c_void;
use core::mem::MaybeUninit;
use libc::c_char;
use roc_std::{RocCallResult, RocStr};
use std::ffi::CStr;
extern "C" {
#[link_name = "roc__mainForHost_1_exposed"]
@ -29,6 +31,19 @@ pub unsafe fn roc_dealloc(c_ptr: *mut c_void, _alignment: u32) {
return libc::free(c_ptr);
}
#[no_mangle]
pub unsafe fn roc_panic(c_ptr: *mut c_void, tag_id: u32) {
match tag_id {
0 => {
let slice = CStr::from_ptr(c_ptr as *const c_char);
let string = slice.to_str().unwrap();
eprintln!("Roc hit a panic: {}", string);
std::process::exit(1);
}
_ => todo!(),
}
}
#[no_mangle]
pub fn rust_main() -> isize {
let mut call_result: MaybeUninit<RocCallResult<RocStr>> = MaybeUninit::uninit();