mirror of https://github.com/rust-lang/rust
36 lines
1.1 KiB
Rust
36 lines
1.1 KiB
Rust
//@ force-host
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//@ no-prefer-dynamic
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#![crate_type = "proc-macro"]
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extern crate proc_macro;
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use proc_macro::{TokenStream, TokenTree, Ident, Punct, Spacing, Span};
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#[proc_macro]
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pub fn make_struct(input: TokenStream) -> TokenStream {
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match input.into_iter().next().unwrap() {
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TokenTree::Ident(ident) => {
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vec![
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TokenTree::Ident(Ident::new("struct", Span::call_site())),
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TokenTree::Ident(Ident::new_raw(&ident.to_string(), Span::call_site())),
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TokenTree::Punct(Punct::new(';', Spacing::Alone))
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].into_iter().collect()
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}
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_ => panic!()
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}
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}
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#[proc_macro]
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pub fn make_bad_struct(input: TokenStream) -> TokenStream {
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match input.into_iter().next().unwrap() {
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TokenTree::Ident(ident) => {
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vec![
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TokenTree::Ident(Ident::new_raw("struct", Span::call_site())),
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TokenTree::Ident(Ident::new(&ident.to_string(), Span::call_site())),
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TokenTree::Punct(Punct::new(';', Spacing::Alone))
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].into_iter().collect()
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}
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_ => panic!()
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}
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}
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