rust/tests/ui/parser/variadic-ffi-semantic-restrictions.rs
2024-06-22 23:30:31 -07:00

86 lines
4.2 KiB
Rust

#![feature(c_variadic)]
#![allow(anonymous_parameters)]
fn main() {}
fn f1_1(x: isize, ...) {}
//~^ ERROR only foreign, `unsafe extern "C"`, or `unsafe extern "C-unwind"` functions may have a C-variadic arg
fn f1_2(...) {}
//~^ ERROR only foreign, `unsafe extern "C"`, or `unsafe extern "C-unwind"` functions may have a C-variadic arg
extern "C" fn f2_1(x: isize, ...) {}
//~^ ERROR only foreign, `unsafe extern "C"`, or `unsafe extern "C-unwind"` functions may have a C-variadic arg
extern "C" fn f2_2(...) {}
//~^ ERROR only foreign, `unsafe extern "C"`, or `unsafe extern "C-unwind"` functions may have a C-variadic arg
extern "C" fn f2_3(..., x: isize) {}
//~^ ERROR only foreign, `unsafe extern "C"`, or `unsafe extern "C-unwind"` functions may have a C-variadic arg
//~| ERROR `...` must be the last argument of a C-variadic function
extern "C" fn f3_1(x: isize, ...) {}
//~^ ERROR only foreign, `unsafe extern "C"`, or `unsafe extern "C-unwind"` functions may have a C-variadic arg
extern "C" fn f3_2(...) {}
//~^ ERROR only foreign, `unsafe extern "C"`, or `unsafe extern "C-unwind"` functions may have a C-variadic arg
extern "C" fn f3_3(..., x: isize) {}
//~^ ERROR only foreign, `unsafe extern "C"`, or `unsafe extern "C-unwind"` functions may have a C-variadic arg
//~| ERROR `...` must be the last argument of a C-variadic function
const unsafe extern "C" fn f4_1(x: isize, ...) {}
//~^ ERROR functions cannot be both `const` and C-variadic
//~| ERROR destructor of `VaListImpl<'_>` cannot be evaluated at compile-time
const extern "C" fn f4_2(x: isize, ...) {}
//~^ ERROR functions cannot be both `const` and C-variadic
//~| ERROR only foreign, `unsafe extern "C"`, or `unsafe extern "C-unwind"` functions may have a C-variadic arg
//~| ERROR destructor of `VaListImpl<'_>` cannot be evaluated at compile-time
const extern "C" fn f4_3(..., x: isize, ...) {}
//~^ ERROR functions cannot be both `const` and C-variadic
//~| ERROR only foreign, `unsafe extern "C"`, or `unsafe extern "C-unwind"` functions may have a C-variadic arg
//~| ERROR `...` must be the last argument of a C-variadic function
extern "C" {
fn e_f2(..., x: isize);
//~^ ERROR `...` must be the last argument of a C-variadic function
}
struct X;
impl X {
fn i_f1(x: isize, ...) {}
//~^ ERROR only foreign, `unsafe extern "C"`, or `unsafe extern "C-unwind"` functions may have a C-variadic arg
fn i_f2(...) {}
//~^ ERROR only foreign, `unsafe extern "C"`, or `unsafe extern "C-unwind"` functions may have a C-variadic arg
fn i_f3(..., x: isize, ...) {}
//~^ ERROR only foreign, `unsafe extern "C"`, or `unsafe extern "C-unwind"` functions may have a C-variadic arg
//~| ERROR `...` must be the last argument of a C-variadic function
fn i_f4(..., x: isize, ...) {}
//~^ ERROR only foreign, `unsafe extern "C"`, or `unsafe extern "C-unwind"` functions may have a C-variadic arg
//~| ERROR `...` must be the last argument of a C-variadic function
const fn i_f5(x: isize, ...) {}
//~^ ERROR only foreign, `unsafe extern "C"`, or `unsafe extern "C-unwind"` functions may have a C-variadic arg
//~| ERROR functions cannot be both `const` and C-variadic
//~| ERROR destructor of `VaListImpl<'_>` cannot be evaluated at compile-time
}
trait T {
fn t_f1(x: isize, ...) {}
//~^ ERROR only foreign, `unsafe extern "C"`, or `unsafe extern "C-unwind"` functions may have a C-variadic arg
fn t_f2(x: isize, ...);
//~^ ERROR only foreign, `unsafe extern "C"`, or `unsafe extern "C-unwind"` functions may have a C-variadic arg
fn t_f3(...) {}
//~^ ERROR only foreign, `unsafe extern "C"`, or `unsafe extern "C-unwind"` functions may have a C-variadic arg
fn t_f4(...);
//~^ ERROR only foreign, `unsafe extern "C"`, or `unsafe extern "C-unwind"` functions may have a C-variadic arg
fn t_f5(..., x: isize) {}
//~^ ERROR only foreign, `unsafe extern "C"`, or `unsafe extern "C-unwind"` functions may have a C-variadic arg
//~| ERROR `...` must be the last argument of a C-variadic function
fn t_f6(..., x: isize);
//~^ ERROR only foreign, `unsafe extern "C"`, or `unsafe extern "C-unwind"` functions may have a C-variadic arg
//~| ERROR `...` must be the last argument of a C-variadic function
}