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run zero-size assertion in const {}

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cyrgani 2025-10-08 13:49:32 +02:00
parent 7a52736039
commit 0355358e6c
1 changed files with 1 additions and 1 deletions
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2
library/proc_macro/src/bridge/selfless_reify.rs
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@ -50,7 +50,7 @@ macro_rules! define_reify_functions {
>(f: F) -> $(extern $abi)? fn($($arg_ty),*) -> $ret_ty {
// FIXME(eddyb) describe the `F` type (e.g. via `type_name::<F>`) once panic
// formatting becomes possible in `const fn`.
assert!(size_of::<F>() == 0, "selfless_reify: closure must be zero-sized");
const { assert!(size_of::<F>() == 0, "selfless_reify: closure must be zero-sized"); }
$(extern $abi)? fn wrapper<
$($($param,)*)?