Add LICENCE

.gitignore

@@ -1 +1 @@
-/target
+target/

binary_serialize_derive/Cargo.lock

@@ -0,0 +1,47 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "binary_serialize_derive"
+version = "0.1.0"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.101"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "89ae43fd86e4158d6db51ad8e2b80f313af9cc74f5c0e03ccb87de09998732de"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.40"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1885c039570dc00dcb4ff087a89e185fd56bae234ddc7f056a945bf36467248d"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "syn"
+version = "2.0.106"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ede7c438028d4436d71104916910f5bb611972c5cfd7f89b8300a8186e6fada6"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a5f39404a5da50712a4c1eecf25e90dd62b613502b7e925fd4e4d19b5c96512"

binary_serialize_derive/Cargo.toml

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+[package]
+name = "binary_serialize_derive"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+proc-macro = true
+
+[dependencies]
+proc-macro2 = "1.0.101"
+quote = "1.0.40"
+syn = { version = "2.0.106", features = ["full"] }

binary_serialize_derive/src/lib.rs

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+extern crate proc_macro;
+
+use proc_macro::TokenStream;
+use quote::quote;
+use syn::{parse_macro_input, DeriveInput};
+
+#[proc_macro_derive(BinarySerializable)]
+pub fn derive_binary_serializable(input: TokenStream) -> TokenStream {
+    let input = parse_macro_input!(input as DeriveInput);
+
+    let name = input.ident;
+
+    let fields = match input.data {
+        syn::Data::Struct(s) => s.fields,
+        _ => panic!("#[derive(BinarySerializable)] only works on structs"),
+    };
+
+    let field_writes = fields.iter().map(|f| {
+        let ident = f.ident.as_ref().unwrap();
+        quote! {
+            BinarySerializable::write_to(&self.#ident, writer)?;
+        }
+    });
+
+    let expanded = quote! {
+        impl BinarySerializable for #name {
+            fn write_to<W: std::io::Write>(&self, writer: &mut W) -> std::io::Result<()> {
+                #(#field_writes)*
+                return Ok(());
+            }
+        }
+    };
+
+    TokenStream::from(expanded)
+}
+