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537a8b7725
This was mostly what I implemented as utility library for another project. But I figured I can also extract it as it's useful on its own.
18 lines
368 B
Rust
18 lines
368 B
Rust
use proc_macro::TokenStream as TokenStream1;
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mod ast;
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mod gen;
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mod parse;
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/// Defines a configuration in a special syntax. TODO: explain what this
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/// generates.
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#[proc_macro]
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pub fn config(input: TokenStream1) -> TokenStream1 {
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syn::parse2::<ast::Input>(input.into())
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.map(gen::gen)
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.unwrap_or_else(|e| e.to_compile_error())
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.into()
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}
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