Update the tsync macro to resolve #76

Cargo.toml

@@ -21,7 +21,8 @@ syn = { version = "2.0", features = ["full", "extra-traits"] }
 proc-macro2 = "1.0.103"
 quote = "1.0.41"
 walkdir = "2.5.0"
-tsync-macro = "0.1.0"
+# Path is uesd localy, the version is used when published to crates.io
+tsync-macro = { path = "tsync-macro", version = "0.2.0"}
 convert_case = "0.8.0"
 state = "0.6.0"
 

tsync-macro/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "tsync-macro"
-version = "0.1.0"
+version = "0.2.0"
 edition = "2021"
 description = "Macros for tsync (see https://github.com/Wulf/tsync)"
 license = "MIT OR Apache-2.0"
@@ -12,3 +12,5 @@ name = "tsync_macro"
 path = "src/lib.rs"
 
 [dependencies]
+quote = "1.0.44"
+syn = "2.0.114"

tsync-macro/src/lib.rs

@@ -1,9 +1,32 @@
-extern crate proc_macro;
-
 use proc_macro::TokenStream;
+use quote::quote;
+use syn::{parse_macro_input, DeriveInput};
 
 // document this attribute
 #[proc_macro_attribute]
 pub fn tsync(_attr: TokenStream, item: TokenStream) -> TokenStream {
-    item
+    let mut input = parse_macro_input!(item as DeriveInput);
+
+    // Remove tsync decorators from struct fields
+    if let syn::Data::Struct(ref mut data) = input.data {
+        if let syn::Fields::Named(ref mut fields) = data.fields {
+            for field in fields.named.iter_mut() {
+                // Remove all tsync attributes
+                field.attrs.retain(|attr| !attr.path().is_ident("tsync"));
+            }
+        }
+    }
+
+    if let syn::Data::Enum(ref mut data) = input.data {
+        for variant in data.variants.iter_mut() {
+            // Remove all tsync attributes
+            variant.attrs.retain(|attr| !attr.path().is_ident("tsync"));
+        }
+    }
+
+    // Return the struct without the field-level tsync attributes
+    quote! {
+        #input
+    }
+    .into()
 }