fix(napi-derive): enable tuple fields to support js_name attribute (#2439)

Co-authored-by: LongYinan <lynweklm@gmail.com>

crates/macro/src/parser/mod.rs

@@ -992,7 +992,12 @@ fn convert_fields(
         ),
         syn::Member::Named(ident.clone()),
       ),
-      None => (format!("field{}", i), syn::Member::Unnamed(i.into())),
+      None => (
+        field_opts
+          .js_name()
+          .map_or_else(|| format!("field{}", i), |(js_name, _)| js_name.to_owned()),
+        syn::Member::Unnamed(i.into()),
+      ),
     };
 
     let ignored = field_opts.skip().is_some();

examples/napi/__tests__/__snapshots__/values.spec.ts.md

@@ -878,7 +878,7 @@ Generated by [AVA](https://avajs.dev).
     }␊
     ␊
     export interface TupleObject {␊
-      field0: number␊
+      customField: number␊
       field1: number␊
     }␊
     ␊

examples/napi/index.d.cts

@@ -841,7 +841,7 @@ export interface TsTypeChanged {
 }
 
 export interface TupleObject {
-  field0: number
+  customField: number
   field1: number
 }
 

examples/napi/src/object.rs

@@ -147,7 +147,7 @@ fn return_object_only_to_js() -> ObjectOnlyToJs {
 }
 
 #[napi(object)]
-pub struct TupleObject(pub u32, pub u32);
+pub struct TupleObject(#[napi(js_name = "customField")] pub u32, pub u32);
 
 #[napi(object)]
 pub struct Data<'s> {