18 lines
646 B
Rust
18 lines
646 B
Rust
use core::intrinsics::discriminant_value;
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use core::ops::ControlFlow;
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#[test]
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fn control_flow_discriminants_match_result() {
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// This isn't stable surface area, but helps keep `?` cheap between them,
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// even if LLVM can't always take advantage of it right now.
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// (Sadly Result and Option are inconsistent, so ControlFlow can't match both.)
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assert_eq!(
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discriminant_value(&ControlFlow::<i32, i32>::Break(3)),
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discriminant_value(&Result::<i32, i32>::Err(3)),
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);
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assert_eq!(
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discriminant_value(&ControlFlow::<i32, i32>::Continue(3)),
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discriminant_value(&Result::<i32, i32>::Ok(3)),
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);
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}
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