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https://github.com/rust-lang/rust
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c63b6a437e
My type ascription Oh rip it out Ah If you think we live too much then You can sacrifice diagnostics Don't mix your garbage Into my syntax So many weird hacks keep diagnostics alive Yet I don't even step outside So many bad diagnostics keep tyasc alive Yet tyasc doesn't even bother to survive!
15 lines
369 B
Rust
15 lines
369 B
Rust
#![feature(allow_internal_unstable)]
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// Macro to help ensure CONST_ERR lint errors
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// are not silenced in external macros.
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// https://github.com/rust-lang/rust/issues/65300
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#[macro_export]
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#[allow_internal_unstable(type_ascription)]
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macro_rules! static_assert {
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($test:expr) => {
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#[allow(dead_code)]
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const _: () = [()][!($test) as usize];
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}
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}
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