18 lines
469 B
Rust
18 lines
469 B
Rust
#![feature(fn_traits)]
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struct Test;
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impl FnOnce<(u32, u32)> for Test {
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//~^ ERROR the precise format of `Fn`-family traits' type parameters is subject to change
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//~| ERROR manual implementations of `FnOnce` are experimental
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type Output = u32;
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extern "rust-call" fn call_once(self, (a, b): (u32, u32)) -> u32 {
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a + b
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}
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//~^^^ ERROR "rust-call" ABI is experimental and subject to change
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}
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fn main() {
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assert_eq!(Test(1u32, 2u32), 3u32);
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}
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