mirror of
https://github.com/AppFlowy-IO/AppFlowy.git
synced 2025-10-31 18:15:09 +00:00
43 lines
1.3 KiB
Rust
43 lines
1.3 KiB
Rust
// https://docs.rs/syn/1.0.48/syn/struct.DeriveInput.html
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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::{parse_macro_input, DeriveInput};
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#[macro_use]
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extern crate quote;
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mod dart_event;
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mod proto_buf;
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// Inspired by https://serde.rs/attributes.html
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#[proc_macro_derive(ProtoBuf, attributes(pb))]
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pub fn derive_proto_buf(input: TokenStream) -> TokenStream {
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let input = parse_macro_input!(input as DeriveInput);
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proto_buf::expand_derive(&input)
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.unwrap_or_else(to_compile_errors)
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.into()
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}
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#[proc_macro_derive(ProtoBuf_Enum, attributes(pb))]
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pub fn derive_proto_buf_enum(input: TokenStream) -> TokenStream {
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let input = parse_macro_input!(input as DeriveInput);
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proto_buf::expand_enum_derive(&input)
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.unwrap_or_else(to_compile_errors)
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.into()
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}
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#[proc_macro_derive(Flowy_Event, attributes(event, event_err))]
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pub fn derive_dart_event(input: TokenStream) -> TokenStream {
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let input = parse_macro_input!(input as DeriveInput);
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dart_event::expand_enum_derive(&input)
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.unwrap_or_else(to_compile_errors)
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.into()
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}
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fn to_compile_errors(errors: Vec<syn::Error>) -> proc_macro2::TokenStream {
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let compile_errors = errors.iter().map(syn::Error::to_compile_error);
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quote!(#(#compile_errors)*)
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}
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