rust/tests/codegen-units/item-collection/function-as-argument.rs
2024-05-31 15:56:45 +10:00

39 lines
1.3 KiB
Rust

//@ compile-flags:-Zprint-mono-items=eager -Zinline-mir=no
#![deny(dead_code)]
#![feature(start)]
fn take_fn_once<T1, T2, F: FnOnce(T1, T2)>(f: F, x: T1, y: T2) {
(f)(x, y)
}
fn function<T1, T2>(_: T1, _: T2) {}
fn take_fn_pointer<T1, T2>(f: fn(T1, T2), x: T1, y: T2) {
(f)(x, y)
}
//~ MONO_ITEM fn start
#[start]
fn start(_: isize, _: *const *const u8) -> isize {
//~ MONO_ITEM fn take_fn_once::<u32, &str, fn(u32, &str) {function::<u32, &str>}>
//~ MONO_ITEM fn function::<u32, &str>
//~ MONO_ITEM fn <fn(u32, &str) {function::<u32, &str>} as std::ops::FnOnce<(u32, &str)>>::call_once - shim(fn(u32, &str) {function::<u32, &str>})
take_fn_once(function, 0u32, "abc");
//~ MONO_ITEM fn take_fn_once::<char, f64, fn(char, f64) {function::<char, f64>}>
//~ MONO_ITEM fn function::<char, f64>
//~ MONO_ITEM fn <fn(char, f64) {function::<char, f64>} as std::ops::FnOnce<(char, f64)>>::call_once - shim(fn(char, f64) {function::<char, f64>})
take_fn_once(function, 'c', 0f64);
//~ MONO_ITEM fn take_fn_pointer::<i32, ()>
//~ MONO_ITEM fn function::<i32, ()>
take_fn_pointer(function, 0i32, ());
//~ MONO_ITEM fn take_fn_pointer::<f32, i64>
//~ MONO_ITEM fn function::<f32, i64>
take_fn_pointer(function, 0f32, 0i64);
0
}