21 lines
423 B
Rust
21 lines
423 B
Rust
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pub trait HelloMacro {
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fn hello_macro();
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}
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/// Simplified version of the vec! macro
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/// This is an example of a declarative macro
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#[macro_export] // This makes the macro usable
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macro_rules! vec {
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( $( $x:expr ),* ) => { // This matches the argument list
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{
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let mut temp_vec = Vec::new();
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$(
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temp_vec.push($x);
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)*
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temp_vec
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}
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};
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}
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