32 lines
656 B
Rust
32 lines
656 B
Rust
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// check-pass
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// compile-flags: -Z span-debug --error-format human
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// aux-build:test-macros.rs
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#![feature(rustc_attrs)]
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#![feature(stmt_expr_attributes)]
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#![no_std] // Don't load unnecessary hygiene information from std
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extern crate std;
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#[macro_use]
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extern crate test_macros;
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macro_rules! produce_it {
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($expr:expr) => {
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#[derive(Print)]
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struct Foo {
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val: [bool; {
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let a = #[cfg_attr(not(FALSE), rustc_dummy(first))] $expr;
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0
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}]
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}
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}
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}
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produce_it!(#[cfg_attr(not(FALSE), rustc_dummy(second))] {
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#![cfg_attr(not(FALSE), allow(unused))]
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30
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});
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fn main() {}
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