Maybe nested closures in a macro could work since they're typeless.

src/parser/parser_with_context.rs

@@ -13,3 +13,15 @@
 // pub(crate) use parser_with_context;
 
 // use super::nom_context::NomContext;
+
+macro_rules! parser_with_context {
+    ($target:ident) => {
+        |context| {
+            |i| {
+                // todo
+                $target(i, context)
+            }
+        }
+    };
+}
+pub(crate) use parser_with_context;