feat: Allow renaming fields

Cargo.lock

@@ -2,6 +2,15 @@
 # It is not intended for manual editing.
 version = 4
 
+[[package]]
+name = "aho-corasick"
+version = "1.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e60d3430d3a69478ad0993f19238d2df97c507009a52b3c10addcd7f6bcb916"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "console"
 version = "0.15.11"
@@ -47,6 +56,16 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "877a4ace8713b0bcf2a4e7eec82529c029f1d0619886d18145fea96c3ffe5c0f"
 
+[[package]]
+name = "eui48"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "887418ac5e8d57c2e66e04bdc2fe15f9a5407be20b54a82c86bd0e368b709701"
+dependencies = [
+ "regex",
+ "serde",
+]
+
 [[package]]
 name = "glob"
 version = "0.3.3"
@@ -105,6 +124,7 @@ checksum = "6a82ae493e598baaea5209805c49bbf2ea7de956d50d7da0da1164f9c6d28543"
 name = "lua_typed"
 version = "0.1.0"
 dependencies = [
+ "eui48",
  "insta",
  "lua_typed_macro",
  "trybuild",
@@ -151,6 +171,35 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "regex"
+version = "1.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23d7fd106d8c02486a8d64e778353d1cffe08ce79ac2e82f540c86d0facf6912"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-automata",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-automata"
+version = "0.4.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6b9458fa0bfeeac22b5ca447c63aaf45f28439a709ccd244698632f9aa6394d6"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.8.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "caf4aa5b0f434c91fe5c7f1ecb6a5ece2130b02ad2a590589dda5146df959001"
+
 [[package]]
 name = "ryu"
 version = "1.0.20"

Cargo.toml

@@ -7,6 +7,7 @@ edition = "2024"
 members = ["lua_typed_macro"]
 
 [dependencies]
+eui48 = { version = "1.1.0", features = ["serde"], default-features = false }
 lua_typed_macro = { path = "./lua_typed_macro/" }
 
 [dev-dependencies]

lua_typed_macro/src/lib.rs

@@ -10,7 +10,7 @@ use syn::{DataEnum, DataStruct, DeriveInput, LitStr, Token, parse_macro_input, s
 
 #[derive(Debug, Clone)]
 struct StructField {
-    name: syn::Ident,
+    name: LitStr,
     ty: syn::Type,
     case: Option<Case<'static>>,
     optional: bool,
@@ -19,7 +19,7 @@ struct StructField {
 
 impl ToTokens for StructField {
     fn to_tokens(&self, tokens: &mut TokenStream2) {
-        let mut name = self.name.to_string();
+        let mut name = self.name.value();
 
         if let Some(case) = self.case {
             name = name.to_case(case);
@@ -283,6 +283,9 @@ fn parse_fields(
     for field in input {
         let mut default = false;
         let mut flatten = false;
+        let name = field.ident.expect("We already checked that ident is some");
+        let mut as_name = LitStr::new(&name.to_string(), name.span());
+
         for attr in &field.attrs {
             if attr.path().is_ident("serde")
                 && let Err(err) = attr.parse_nested_meta(|meta| {
@@ -307,10 +310,25 @@ fn parse_fields(
             {
                 return Err(err);
             }
+
+            if attr.path().is_ident("typed")
+                && let Err(err) = attr.parse_nested_meta(|meta| {
+                    if meta.path.is_ident("as") {
+                        let value = meta.value()?;
+                        as_name = value.parse()?;
+
+                        Ok(())
+                    } else {
+                        Err(syn::Error::new(meta.path.span(), "Unknown attribute"))
+                    }
+                })
+            {
+                return Err(err);
+            }
         }
 
         fields.push(StructField {
-            name: field.ident.expect("We already checked that ident is some"),
+            name: as_name,
             ty: field.ty,
             case,
             optional: default,

src/lib.rs

@@ -1,5 +1,10 @@
+#![feature(negative_impls)]
+use eui48::MacAddress;
 pub use lua_typed_macro::Typed;
-use std::collections::HashMap;
+use std::{
+    collections::HashMap,
+    net::{Ipv4Addr, SocketAddr},
+};
 
 pub trait Typed {
     fn type_name() -> String;
@@ -132,6 +137,26 @@ impl Typed for String {
     }
 }
 
+impl Typed for SocketAddr {
+    fn type_name() -> String {
+        "string".into()
+    }
+}
+
+impl Typed for Ipv4Addr {
+    fn type_name() -> String {
+        "string".into()
+    }
+}
+
+impl Typed for MacAddress {
+    fn type_name() -> String {
+        "string".into()
+    }
+}
+
+impl<A: Typed, B: Typed> !Typed for (A, B) {}
+
 impl<T: Typed> Typed for Option<T> {
     fn type_name() -> String {
         format!("{}?", <T as Typed>::type_name())