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remove callresult from cli examples

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This commit is contained in:
Folkert 2021-09-19 18:34:42 +02:00
parent 9d53e1d748
commit c5eeaab2c2
10 changed files with 60 additions and 112 deletions
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25
examples/hello-rust/platform/src/lib.rs
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@ -3,12 +3,12 @@
use core::ffi::c_void;
use core::mem::MaybeUninit;
use libc::c_char;
use roc_std::{RocCallResult, RocStr};
use roc_std::RocStr;
use std::ffi::CStr;
extern "C" {
#[link_name = "roc__mainForHost_1_exposed"]
fn roc_main(output: *mut RocCallResult<RocStr>) -> ();
fn roc_main(output: *mut RocStr) -> ();
}
#[no_mangle]
@ -46,25 +46,18 @@ pub unsafe fn roc_panic(c_ptr: *mut c_void, tag_id: u32) {
#[no_mangle]
pub fn rust_main() -> isize {
let mut call_result: MaybeUninit<RocCallResult<RocStr>> = MaybeUninit::uninit();
let mut raw_output: MaybeUninit<RocStr> = MaybeUninit::uninit();
unsafe {
roc_main(call_result.as_mut_ptr());
roc_main(raw_output.as_mut_ptr());
let output = call_result.assume_init();
let roc_str = raw_output.assume_init();
match output.into() {
Ok(roc_str) => {
let len = roc_str.len();
let str_bytes = roc_str.get_bytes() as *const libc::c_void;
let len = roc_str.len();
let str_bytes = roc_str.get_bytes() as *const libc::c_void;
if libc::write(1, str_bytes, len) < 0 {
panic!("Writing to stdout failed!");
}
}
Err(msg) => {
panic!("Roc failed with message: {}", msg);
}
if libc::write(1, str_bytes, len) < 0 {
panic!("Writing to stdout failed!");
}
}