feat: Added new crate harmony_macros with ip! macro to facilitate creating ip addresses

harmony-rs/harmony_macros/src/lib.rs

@@ -0,0 +1,23 @@
+extern crate proc_macro;
+
+use proc_macro::TokenStream;
+use quote::quote;
+use syn::{parse_macro_input, LitStr};
+
+#[proc_macro]
+pub fn ip(input: TokenStream) -> TokenStream {
+    let input = parse_macro_input!(input as LitStr);
+    let ip_str = input.value();
+
+    if let Ok(_) = ip_str.parse::<std::net::Ipv4Addr>() {
+        let expanded = quote! { std::net::IpAddr::V4(#ip_str.parse::<std::net::Ipv4Addr>().unwrap()) };
+        return TokenStream::from(expanded);
+    }
+
+    if let Ok(_) = ip_str.parse::<std::net::Ipv6Addr>() {
+        let expanded = quote! { std::net::IpAddr::V4(#ip_str.parse::<std::net::Ipv6Addr>().unwrap()) };
+        return TokenStream::from(expanded);
+    }
+
+    panic!("Invalid IP address: {}", ip_str);
+}