25 lines
432 B
Rust
25 lines
432 B
Rust
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//@ run-pass
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//@ check-run-results
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#![feature(macro_attr)]
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macro_rules! nest {
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attr() { struct $name:ident; } => {
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println!("nest");
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#[nest(1)]
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struct $name;
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};
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attr(1) { struct $name:ident; } => {
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println!("nest(1)");
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#[nest(2)]
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struct $name;
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};
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attr(2) { struct $name:ident; } => {
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println!("nest(2)");
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};
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}
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fn main() {
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#[nest]
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struct S;
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}
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