1 use wasmtime::component::{Func, Val}; 2 3 use crate::{WasmtimeStoreContextMut, wasmtime_error_t}; 4 5 use super::wasmtime_component_val_t; 6 7 #[unsafe(no_mangle)] 8 pub 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 23 .call(&mut context, &args, &mut results) 24 .and_then(|_| func.post_return(&mut context)); 25 26 crate::handle_result(result, |_| { 27 for (c_val, rust_val) in std::iter::zip(c_results, results) { 28 *c_val = wasmtime_component_val_t::from(&rust_val); 29 } 30 }) 31 } 32