1 files changed, 46 insertions, 1 deletions
diff --git a/mingling_macros/src/lib.rs b/mingling_macros/src/lib.rs
index 760a6ef..badb117 100644
--- a/mingling_macros/src/lib.rs
+++ b/mingling_macros/src/lib.rs
@@ -8,7 +8,7 @@
 //! The Mingling macros crate provides the following categories of macros:
 //!
 //! - **Command definition**: `dispatcher!`, `dispatcher_clap!`, `node!`, `pack!`
-//! - **Chain processing**: `#[chain]`, `gen_program!`, `route!`
+//! - **Chain processing**: `#[chain]`, `gen_program!`, `route!`, `empty_result!`
 //! - **Rendering**: `#[renderer]`, `r_print!`, `r_println!`
 //! - **Help system**: `#[help]`, `register_help!`
 //! - **Derive macros**: `#[derive(Groupped)]`, `#[derive(EnumTag)]`, `#[derive(GrouppedSerialize)]`
@@ -237,6 +237,51 @@ pub fn route(input: TokenStream) -> TokenStream {
     TokenStream::from(expanded)
 }
 
+/// Creates an empty result value wrapped in `ChainProcess` for early return
+/// from a chain function.
+///
+/// This macro is a shorthand for constructing an `EmptyResult` and converting
+/// it into a `ChainProcess`, which signals to the pipeline that there is
+/// no meaningful output to continue processing.
+///
+/// # Syntax
+///
+/// ```rust,ignore
+/// empty_result!()
+/// ```
+///
+/// # Example
+///
+/// ```rust,ignore
+/// use mingling::macros::{chain, empty_result};
+///
+/// #[chain]
+/// fn maybe_skip(prev: SomeEntry) -> Next {
+///     if should_skip() {
+///         return empty_result!();
+///     }
+///     // ... continue processing
+///     NextEntry::new(result).to_chain()
+/// }
+/// ```
+///
+/// # Generated code
+///
+/// The macro expands to:
+/// ```rust,ignore
+/// crate::EmptyResult::new(()).to_chain()
+/// ```
+///
+/// This works because `EmptyResult` is automatically generated by `gen_program!`
+/// and implements the necessary trait conversions into `ChainProcess`.
+#[proc_macro]
+pub fn empty_result(_input: TokenStream) -> TokenStream {
+    let expanded = quote! {
+        crate::EmptyResult::new(()).to_chain()
+    };
+    TokenStream::from(expanded)
+}
+
 /// Creates a `Dispatcher` implementation for a subcommand.
 ///
 /// This is the primary way to define command-line subcommands in Mingling.