21 lines
657 B
Rust
21 lines
657 B
Rust
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// build-fail
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// compile-flags: -O
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//! Make sure we detect erroneous constants post-monomorphization even when they are unused. This is
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//! crucial, people rely on it for soundness. (https://github.com/rust-lang/rust/issues/112090)
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struct PrintName<T>(T);
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impl<T> PrintName<T> {
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const VOID: () = panic!(); //~ERROR evaluation of `PrintName::<i32>::VOID` failed
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}
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fn no_codegen<T>() {
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// Any function that is called is guaranteed to have all consts that syntactically
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// appear in its body evaluated, even if they only appear in dead code.
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if false {
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let _ = PrintName::<T>::VOID;
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}
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}
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pub fn main() {
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no_codegen::<i32>();
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}
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