mod attrs;
mod container;
mod ctxt;
mod decl;
mod derive;
mod parser;
mod type_alias;
mod typescript;
mod wasm_bindgen;
use syn::{parse_macro_input, DeriveInput};
fn declare_impl(
args: proc_macro2::TokenStream,
item: syn::Item,
) -> darling::Result<proc_macro2::TokenStream> {
match item {
syn::Item::Type(item) => type_alias::expend(item),
syn::Item::Enum(item) => derive::expand_by_attr(args, item.into()),
syn::Item::Struct(item) => derive::expand_by_attr(args, item.into()),
_ => Err(darling::Error::custom(
"#[declare] can only be applied to a struct, enum, or type alias.",
)
.with_span(&args)),
}
}
#[proc_macro_attribute]
pub fn declare(
args: proc_macro::TokenStream,
item: proc_macro::TokenStream,
) -> proc_macro::TokenStream {
let item: syn::Item = parse_macro_input!(item);
let args = proc_macro2::TokenStream::from(args);
declare_impl(args, item)
.unwrap_or_else(|err| err.write_errors())
.into()
}
#[proc_macro_derive(Tsify, attributes(tsify, serde))]
pub fn derive_tsify(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
let item: DeriveInput = parse_macro_input!(input);
derive::expand(item)
.unwrap_or_else(|err| err.write_errors())
.into()
}