19 lines
345 B
Rust
19 lines
345 B
Rust
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extern crate proc_macro;
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use proc_macro::TokenStream;
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#[proc_macro_derive(AddImpl)]
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pub fn derive(input: TokenStream) -> TokenStream {
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"use std::cmp::Ordering;
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impl<T> Ord for PriorityQueue<T> {
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fn cmp(&self, other: &Self) -> Ordering {
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self.0.cmp(&self.height)
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}
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}
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"
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.parse()
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.unwrap()
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}
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