move version_handling to help module

derive/src/argument.rs

@@ -314,17 +314,3 @@ fn argument_expression(arg: &Argument) -> TokenStream {
         _ => panic!("WWWOWOWOWOW"),
     }
 }
-
-pub(crate) fn version_handling(version_flags: &Flags) -> TokenStream {
-    if version_flags.is_empty() {
-        return quote!();
-    }
-
-    let pat = version_flags.pat();
-
-    quote!(
-        if let #pat = arg {
-            return Ok(Some(Argument::Version));
-        }
-    )
-}

derive/src/help.rs

@@ -162,3 +162,17 @@ fn read_help_file(file: &str) -> (TokenStream, TokenStream) {
         get_after_event(pulldown_cmark::Event::Rule, &contents),
     )
 }
+
+pub(crate) fn version_handling(version_flags: &Flags) -> TokenStream {
+    if version_flags.is_empty() {
+        return quote!();
+    }
+
+    let pat = version_flags.pat();
+
+    quote!(
+        if let #pat = arg {
+            return Ok(Some(Argument::Version));
+        }
+    )
+}

derive/src/lib.rs

@@ -6,11 +6,9 @@ mod help;
 mod markdown;
 
 use action::{parse_action_attr, ActionAttr, ActionType};
-use argument::{
-    long_handling, parse_argument, positional_handling, short_handling, version_handling,
-};
+use argument::{long_handling, parse_argument, positional_handling, short_handling};
 use attributes::ValueAttr;
-use help::{help_handling, help_string, parse_help_attr, parse_version_attr};
+use help::{help_handling, help_string, parse_help_attr, parse_version_attr, version_handling};
 
 use proc_macro::TokenStream;
 use quote::quote;