1 files changed, 16 insertions, 0 deletions
diff --git a/mingling_macros/src/func/route.rs b/mingling_macros/src/func/route.rs
new file mode 100644
index 0000000..b338fb0
--- /dev/null
+++ b/mingling_macros/src/func/route.rs
@@ -0,0 +1,16 @@
+use proc_macro::TokenStream;
+use quote::quote;
+use syn::parse_macro_input;
+
+/// Routes execution depending on a condition — early-returns the error from a `Result`,
+/// converting the `Ok` branch to the next chain process value.
+pub(crate) fn route(input: TokenStream) -> TokenStream {
+    let expr = parse_macro_input!(input as syn::Expr);
+    let expanded = quote! {
+        match #expr {
+            Ok(r) => r,
+            Err(e) => return ::mingling::Routable::to_chain(e),
+        }
+    };
+    TokenStream::from(expanded)
+}