feat: Allow renaming fields

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,