WIP: use shipyard ecs

packages/native-core-macro/src/lib.rs

@@ -0,0 +1,22 @@
+extern crate proc_macro;
+
+mod sorted_slice;
+
+use proc_macro::TokenStream;
+use quote::{quote, ToTokens, __private::Span};
+use sorted_slice::StrSlice;
+use syn::parenthesized;
+use syn::parse::ParseBuffer;
+use syn::punctuated::Punctuated;
+use syn::{
+    self,
+    parse::{Parse, ParseStream, Result},
+    parse_macro_input, parse_quote, Error, Field, Ident, Token, Type,
+};
+
+/// A helper attribute for deriving `State` for a struct.
+#[proc_macro_attribute]
+pub fn my_attribute(_: TokenStream, input: TokenStream) -> TokenStream {
+    let impl_block: syn::ItemImpl = syn::parse(input).unwrap();
+    quote!(#impl_block).into()
+}