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23 lines
320 B
Rust
23 lines
320 B
Rust
#![feature(decl_macro)]
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macro modern($a: ident) {
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struct Modern {
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a: u8,
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$a: u8, // OK
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}
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}
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macro_rules! legacy {
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($a: ident) => {
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struct Legacy {
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a: u8,
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$a: u8, //~ ERROR field `a` is already declared
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}
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}
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}
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modern!(a);
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legacy!(a);
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fn main() {}
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