wasmtime_c_api/component/
func.rs

1use wasmtime::component::{Func, Val};
2
3use crate::{WasmtimeStoreContextMut, wasmtime_error_t};
4
5use super::wasmtime_component_val_t;
6
7#[unsafe(no_mangle)]
8pub unsafe extern "C" fn wasmtime_component_func_call(
9    func: &Func,
10    mut context: WasmtimeStoreContextMut<'_>,
11    args: *const wasmtime_component_val_t,
12    args_len: usize,
13    results: *mut wasmtime_component_val_t,
14    results_len: usize,
15) -> Option<Box<wasmtime_error_t>> {
16    let c_args = unsafe { std::slice::from_raw_parts(args, args_len) };
17    let c_results = unsafe { std::slice::from_raw_parts_mut(results, results_len) };
18
19    let args = c_args.iter().map(Val::from).collect::<Vec<_>>();
20    let mut results = vec![Val::Bool(false); results_len];
21
22    let result = func.call(&mut context, &args, &mut results);
23
24    crate::handle_result(result, |_| {
25        for (c_val, rust_val) in std::iter::zip(c_results, results) {
26            *c_val = wasmtime_component_val_t::from(&rust_val);
27        }
28    })
29}
30
31#[unsafe(no_mangle)]
32pub unsafe extern "C" fn wasmtime_component_func_post_return(
33    func: &Func,
34    mut context: WasmtimeStoreContextMut<'_>,
35) -> Option<Box<wasmtime_error_t>> {
36    let result = func.post_return(&mut context);
37
38    crate::handle_result(result, |_| {})
39}
wasmtime_c_api/component/func.rs

wasmtime_c_api/component/
func.rs
