15 lines
235 B
Rust
15 lines
235 B
Rust
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//@ check-pass
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//@ edition: 2015
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// Ensures expr_2021 fragment specifier is accepted in old editions
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macro_rules! my_macro {
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($x:expr_2021) => {
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println!("Hello, {}!", $x);
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};
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}
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fn main() {
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my_macro!("world");
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}
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