mirror of
https://gitee.com/openharmony/third_party_rust_syn
synced 2024-11-23 16:00:10 +00:00
5b351e5a82
Hides an unnecessary extra error:
error[E0601]: `main` function not found in crate `syn_dev`
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= note: consider adding a `main` function to `dev/main.rs`
19 lines
396 B
Rust
19 lines
396 B
Rust
extern crate proc_macro;
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use proc_macro::TokenStream;
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use quote::quote;
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use syn::File;
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#[proc_macro]
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pub fn r#mod(input: TokenStream) -> TokenStream {
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let compile_error = syn::parse::<File>(input)
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.map(|file| println!("{:#?}", file))
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.map_err(|err| err.to_compile_error())
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.err();
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TokenStream::from(quote! {
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#compile_error
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fn main() {}
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})
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}
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