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7b7c26f09b
Also allow `impl Trait` in delegated functions. The delegation item will refer to the original opaque type from the callee, fresh opaque type won't be created.
58 lines
1.3 KiB
Rust
58 lines
1.3 KiB
Rust
//@ check-pass
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//@ edition:2018
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//@ aux-crate:fn_header_aux=fn-header-aux.rs
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#![feature(c_variadic)]
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#![feature(fn_delegation)]
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#![allow(incomplete_features)]
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#![deny(unused_unsafe)]
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mod to_reuse {
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pub unsafe fn unsafe_fn() {}
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pub extern "C" fn extern_fn() {}
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pub unsafe extern "C" fn variadic_fn(n: usize, mut args: ...) {}
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pub const fn const_fn() {}
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pub async fn async_fn() {}
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}
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reuse to_reuse::unsafe_fn;
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reuse to_reuse::extern_fn;
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reuse to_reuse::variadic_fn;
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reuse to_reuse::const_fn;
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reuse to_reuse::async_fn;
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reuse fn_header_aux::unsafe_fn_extern;
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reuse fn_header_aux::extern_fn_extern;
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reuse fn_header_aux::variadic_fn_extern;
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reuse fn_header_aux::const_fn_extern;
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reuse fn_header_aux::async_fn_extern;
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const fn const_check() {
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const_fn();
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const_fn_extern();
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}
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async fn async_check() {
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async_fn().await;
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async_fn_extern().await;
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}
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fn main() {
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unsafe {
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unsafe_fn();
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unsafe_fn_extern();
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}
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extern_fn();
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extern_fn_extern();
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let _: extern "C" fn() = extern_fn;
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let _: extern "C" fn() = extern_fn_extern;
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unsafe {
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variadic_fn(0);
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variadic_fn(0, 1);
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variadic_fn_extern(0);
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variadic_fn_extern(0, 1);
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}
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let _: unsafe extern "C" fn(usize, ...) = variadic_fn;
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let _: unsafe extern "C" fn(usize, ...) = variadic_fn_extern;
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}
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