mirror of https://github.com/rust-lang/rust.git
43 lines
1.1 KiB
Rust
43 lines
1.1 KiB
Rust
//@ run-rustfix
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#![expect(incomplete_features)]
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#![feature(explicit_tail_calls)]
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#![allow(unused)]
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use std::num::Wrapping;
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use std::ops::{Not, Add, BitXorAssign};
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// built-ins and overloaded operators are handled differently
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fn f(a: u64, b: u64) -> u64 {
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return a + b; //~ error: `become` does not support operators
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}
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fn g(a: String, b: &str) -> String {
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become (a).add(b); //~ error: `become` does not support operators
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}
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fn h(x: u64) -> u64 {
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return !x; //~ error: `become` does not support operators
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}
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fn i_do_not_know_any_more_letters(x: Wrapping<u32>) -> Wrapping<u32> {
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become (x).not(); //~ error: `become` does not support operators
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}
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fn builtin_index(x: &[u8], i: usize) -> u8 {
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return x[i] //~ error: `become` does not support operators
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}
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// FIXME(explicit_tail_calls): overloaded index is represented like `[&]*x.index(i)`,
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// and so need additional handling
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fn a(a: &mut u8, _: u8) {
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return *a ^= 1; //~ error: `become` does not support operators
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}
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fn b(b: &mut Wrapping<u8>, _: u8) {
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become (*b).bitxor_assign(1); //~ error: `become` does not support operators
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}
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fn main() {}
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