63 lines
1.5 KiB
Rust
63 lines
1.5 KiB
Rust
#![recursion_limit="128"]
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#[macro_use]
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extern crate synstructure;
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#[macro_use]
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extern crate quote;
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extern crate proc_macro2;
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mod rrdata;
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mod dns_packet_data;
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mod dns_text_data;
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mod native_enum;
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mod native_flags;
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decl_derive!([DnsPacketData] => dns_packet_data::derive);
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decl_derive!([DnsTextData] => dns_text_data::derive);
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decl_derive!([RRData, attributes(RRTypeName, RRClass)] => rrdata::rrdata_derive);
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decl_attribute!([native_enum] => native_enum::attribute_native_enum);
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decl_attribute!([native_flags] => native_flags::attribute_native_flags);
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fn attr_get_single_list_arg(attr_meta: &syn::Meta) -> proc_macro2::TokenStream {
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match attr_meta {
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syn::Meta::Word(_) => {
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panic!("{:?} attribute requires an argument", attr_meta.name())
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},
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syn::Meta::List(l) => {
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if l.nested.len() != 1 {
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panic!("{:?} attribute requires exactly one argument", attr_meta.name());
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}
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let arg = *l.nested.first().unwrap().value();
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quote!{#arg}
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},
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syn::Meta::NameValue(nv) => {
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let lit = &nv.lit;
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quote!{#lit}
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},
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}
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}
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/*
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#[proc_macro_derive(DnsPacketData)]
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pub fn derive_dns_packet_data(input: TokenStream) -> TokenStream {
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let s = input.to_string();
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let ast = syn::parse_derive_input(&s).unwrap();
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let gen = dns_packet_data::build(&ast);
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gen.parse().unwrap()
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}
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#[proc_macro_derive(DnsTextData)]
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pub fn derive_dns_text_data(input: TokenStream) -> TokenStream {
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let s = input.to_string();
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let ast = syn::parse_derive_input(&s).unwrap();
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let gen = dns_text_data::build(&ast);
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gen.parse().unwrap()
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}
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*/ |