diff --git a/module/core/derive_tools/Cargo.toml b/module/core/derive_tools/Cargo.toml
index d54788975c..5709a8e50f 100644
--- a/module/core/derive_tools/Cargo.toml
+++ b/module/core/derive_tools/Cargo.toml
@@ -67,6 +67,7 @@ default = [
 
   "derive_from",
   "derive_inner_from",
+  "derive_new",
 
   # "use_std",
 ]
@@ -111,16 +112,17 @@ full = [
 
   "derive_from",
   "derive_inner_from",
+  "derive_new",
 
   # "use_std",
 ]
 no_std = []
 use_alloc = [ "no_std", "clone_dyn/use_alloc" ]
-enabled = []
+enabled = [ "derive_tools_meta/enabled" ]
 
 # nightly = [ "derive_more/nightly" ]
 
-type_variadic_from = [ "variadic_from/type_variadic_from" ]
+type_variadic_from = [ "variadic_from/enabled", "variadic_from/type_variadic_from" ]
 derive_variadic_from = [ "type_variadic_from", "derive_tools_meta/derive_variadic_from", "variadic_from/derive_variadic_from" ]
 
 # enable_track_caller = [ "derive_more", "derive_more/track-caller" ]
@@ -163,13 +165,15 @@ derive_strum = [ "strum/std", "strum/derive", "strum/strum_macros" ]
 strum_phf = [ "strum/std", "strum/phf", "strum/strum_macros" ]
 # zzz : review features
 
-derive_clone_dyn = [ "clone_dyn", "clone_dyn/enabled" ]
+derive_clone_dyn = [ "clone_dyn/enabled" ]
 # derive_clone_dyn_use_std = [ "derive_clone_dyn", "clone_dyn/use_std" ]
 # derive_clone_dyn_no_std = [ "derive_clone_dyn", "clone_dyn/no_std" ]
 # derive_clone_dyn_use_alloc = [ "derive_clone_dyn", "clone_dyn/use_alloc" ]
 
 derive_from = [ "derive_tools_meta/derive_from" ]
 derive_inner_from = [ "derive_tools_meta/derive_inner_from" ]
+derive_new = [ "derive_tools_meta/derive_new" ]
+
 parse_display = [ "parse-display" ]
 
 [dependencies]
@@ -180,10 +184,11 @@ strum = { version = "~0.25", optional = true, default-features = false }
 # strum_macros = { version = "~0.25.3", optional = true, default-features = false }
 parse-display = { version = "~0.8.2", optional = true, default-features = false }
 
+
 ## internal
-derive_tools_meta = { workspace = true, features = [ "enabled" ] }
+derive_tools_meta = { workspace = true, features = [] }
 variadic_from = { workspace = true, features = [] }
-clone_dyn = { workspace = true, optional = true }
+clone_dyn = { workspace = true, features = [] }
 
 [dev-dependencies]
 test_tools = { workspace = true }
diff --git a/module/core/derive_tools/tests/inc/from_inner_manual_test.rs b/module/core/derive_tools/tests/inc/from/manual_test.rs
similarity index 86%
rename from module/core/derive_tools/tests/inc/from_inner_manual_test.rs
rename to module/core/derive_tools/tests/inc/from/manual_test.rs
index 2b48bca774..4add4ff66b 100644
--- a/module/core/derive_tools/tests/inc/from_inner_manual_test.rs
+++ b/module/core/derive_tools/tests/inc/from/manual_test.rs
@@ -15,4 +15,4 @@ impl From< bool > for IsTransparent
   }
 }
 
-include!( "./only_test/from_inner.rs" );
+include!( "./only_test/basic.rs" );
diff --git a/module/core/derive_tools/tests/inc/from_inner_multiple_manual_test.rs b/module/core/derive_tools/tests/inc/from/multiple_manual_test.rs
similarity index 83%
rename from module/core/derive_tools/tests/inc/from_inner_multiple_manual_test.rs
rename to module/core/derive_tools/tests/inc/from/multiple_manual_test.rs
index 9d49fa7e36..b44fc6b651 100644
--- a/module/core/derive_tools/tests/inc/from_inner_multiple_manual_test.rs
+++ b/module/core/derive_tools/tests/inc/from/multiple_manual_test.rs
@@ -12,4 +12,4 @@ impl From< ( i32, bool ) > for StructWithManyFields
   }
 }
 
-include!( "./only_test/from_inner_multiple.rs" );
+include!( "./only_test/multiple.rs" );
diff --git a/module/core/derive_tools/tests/inc/from_inner_multiple_named_manual_test.rs b/module/core/derive_tools/tests/inc/from/multiple_named_manual_test.rs
similarity index 82%
rename from module/core/derive_tools/tests/inc/from_inner_multiple_named_manual_test.rs
rename to module/core/derive_tools/tests/inc/from/multiple_named_manual_test.rs
index 148dff7a42..02b756b5f5 100644
--- a/module/core/derive_tools/tests/inc/from_inner_multiple_named_manual_test.rs
+++ b/module/core/derive_tools/tests/inc/from/multiple_named_manual_test.rs
@@ -16,4 +16,4 @@ impl From< ( i32, bool ) > for StructNamedFields
   }
 }
 
-include!( "./only_test/from_inner_multiple_named.rs" );
+include!( "./only_test/multiple_named.rs" );
diff --git a/module/core/derive_tools/tests/inc/from_inner_multiple_named_test.rs b/module/core/derive_tools/tests/inc/from/multiple_named_test.rs
similarity index 68%
rename from module/core/derive_tools/tests/inc/from_inner_multiple_named_test.rs
rename to module/core/derive_tools/tests/inc/from/multiple_named_test.rs
index f12692c40a..ddb088c624 100644
--- a/module/core/derive_tools/tests/inc/from_inner_multiple_named_test.rs
+++ b/module/core/derive_tools/tests/inc/from/multiple_named_test.rs
@@ -7,4 +7,4 @@ struct StructNamedFields
   b: bool,
 }
 
-include!( "./only_test/from_inner_multiple_named.rs" );
+include!( "./only_test/multiple_named.rs" );
diff --git a/module/core/derive_tools/tests/inc/from_inner_multiple_test.rs b/module/core/derive_tools/tests/inc/from/multiple_test.rs
similarity index 69%
rename from module/core/derive_tools/tests/inc/from_inner_multiple_test.rs
rename to module/core/derive_tools/tests/inc/from/multiple_test.rs
index db54cef54b..925cd66ca0 100644
--- a/module/core/derive_tools/tests/inc/from_inner_multiple_test.rs
+++ b/module/core/derive_tools/tests/inc/from/multiple_test.rs
@@ -3,4 +3,4 @@ use super::*;
 #[ derive( Debug, PartialEq, Eq, the_module::From ) ]
 struct StructWithManyFields( i32, bool );
 
-include!( "./only_test/from_inner_multiple.rs" );
+include!( "./only_test/multiple.rs" );
diff --git a/module/core/derive_tools/tests/inc/from_inner_named_manual_test.rs b/module/core/derive_tools/tests/inc/from/named_manual_test.rs
similarity index 80%
rename from module/core/derive_tools/tests/inc/from_inner_named_manual_test.rs
rename to module/core/derive_tools/tests/inc/from/named_manual_test.rs
index d80f626439..6118d32e69 100644
--- a/module/core/derive_tools/tests/inc/from_inner_named_manual_test.rs
+++ b/module/core/derive_tools/tests/inc/from/named_manual_test.rs
@@ -15,4 +15,4 @@ impl From< i32 > for MyStruct
   }
 }
 
-include!( "./only_test/from_inner_named.rs" );
+include!( "./only_test/named.rs" );
diff --git a/module/core/derive_tools/tests/inc/from_inner_named_test.rs b/module/core/derive_tools/tests/inc/from/named_test.rs
similarity index 68%
rename from module/core/derive_tools/tests/inc/from_inner_named_test.rs
rename to module/core/derive_tools/tests/inc/from/named_test.rs
index 0540470a01..49a1e564d1 100644
--- a/module/core/derive_tools/tests/inc/from_inner_named_test.rs
+++ b/module/core/derive_tools/tests/inc/from/named_test.rs
@@ -6,4 +6,4 @@ struct MyStruct
   a : i32,
 }
 
-include!( "./only_test/from_inner_named.rs" );
+include!( "./only_test/named.rs" );
diff --git a/module/core/derive_tools/tests/inc/only_test/from_inner.rs b/module/core/derive_tools/tests/inc/from/only_test/basic.rs
similarity index 97%
rename from module/core/derive_tools/tests/inc/only_test/from_inner.rs
rename to module/core/derive_tools/tests/inc/from/only_test/basic.rs
index df3fca75ea..f7f591e3c0 100644
--- a/module/core/derive_tools/tests/inc/only_test/from_inner.rs
+++ b/module/core/derive_tools/tests/inc/from/only_test/basic.rs
@@ -1,6 +1,6 @@
 
 #[ test ]
-fn from_inner_test()
+fn from_test()
 {
 
   // let got = IsTransparent::default();
diff --git a/module/core/derive_tools/tests/inc/only_test/from_inner_multiple.rs b/module/core/derive_tools/tests/inc/from/only_test/multiple.rs
similarity index 87%
rename from module/core/derive_tools/tests/inc/only_test/from_inner_multiple.rs
rename to module/core/derive_tools/tests/inc/from/only_test/multiple.rs
index 4ef1750651..0386486e7c 100644
--- a/module/core/derive_tools/tests/inc/only_test/from_inner_multiple.rs
+++ b/module/core/derive_tools/tests/inc/from/only_test/multiple.rs
@@ -1,5 +1,5 @@
 #[ test ]
-fn from_inner_named() 
+fn from_named()
 {
   let got : StructWithManyFields = StructWithManyFields::from((10, true));
   let exp = StructWithManyFields( 10 , true );
diff --git a/module/core/derive_tools/tests/inc/only_test/from_inner_multiple_named.rs b/module/core/derive_tools/tests/inc/from/only_test/multiple_named.rs
similarity index 87%
rename from module/core/derive_tools/tests/inc/only_test/from_inner_multiple_named.rs
rename to module/core/derive_tools/tests/inc/from/only_test/multiple_named.rs
index 3ba0ced760..b88a4f3872 100644
--- a/module/core/derive_tools/tests/inc/only_test/from_inner_multiple_named.rs
+++ b/module/core/derive_tools/tests/inc/from/only_test/multiple_named.rs
@@ -1,5 +1,5 @@
 #[ test ]
-fn from_inner_named() 
+fn from_named()
 {
   let got : StructNamedFields = StructNamedFields::from((10, true));
   let exp = StructNamedFields{ a : 10 , b : true };
diff --git a/module/core/derive_tools/tests/inc/only_test/from_inner_named.rs b/module/core/derive_tools/tests/inc/from/only_test/named.rs
similarity index 83%
rename from module/core/derive_tools/tests/inc/only_test/from_inner_named.rs
rename to module/core/derive_tools/tests/inc/from/only_test/named.rs
index ff62e904eb..d749625ce6 100644
--- a/module/core/derive_tools/tests/inc/only_test/from_inner_named.rs
+++ b/module/core/derive_tools/tests/inc/from/only_test/named.rs
@@ -1,5 +1,5 @@
 #[ test ]
-fn from_inner_named() 
+fn from_named()
 {
   let got : MyStruct = MyStruct::from( 13 );
   let exp = MyStruct { a : 13 };
diff --git a/module/core/derive_tools/tests/inc/only_test/from_inner_unit.rs b/module/core/derive_tools/tests/inc/from/only_test/unit.rs
similarity index 82%
rename from module/core/derive_tools/tests/inc/only_test/from_inner_unit.rs
rename to module/core/derive_tools/tests/inc/from/only_test/unit.rs
index 1cc2c51750..7e5b22ad51 100644
--- a/module/core/derive_tools/tests/inc/only_test/from_inner_unit.rs
+++ b/module/core/derive_tools/tests/inc/from/only_test/unit.rs
@@ -1,5 +1,5 @@
 #[ test ]
-fn from_inner_named() 
+fn from_named()
 {
   let got : UnitStruct = UnitStruct::from( () );
   let exp = UnitStruct;
diff --git a/module/core/derive_tools/tests/inc/only_test/from_inner_variants.rs b/module/core/derive_tools/tests/inc/from/only_test/variants.rs
similarity index 100%
rename from module/core/derive_tools/tests/inc/only_test/from_inner_variants.rs
rename to module/core/derive_tools/tests/inc/from/only_test/variants.rs
diff --git a/module/core/derive_tools/tests/inc/only_test/from_inner_variants_duplicates.rs b/module/core/derive_tools/tests/inc/from/only_test/variants_duplicates.rs
similarity index 100%
rename from module/core/derive_tools/tests/inc/only_test/from_inner_variants_duplicates.rs
rename to module/core/derive_tools/tests/inc/from/only_test/variants_duplicates.rs
diff --git a/module/core/derive_tools/tests/inc/only_test/from_inner_variants_generics.rs b/module/core/derive_tools/tests/inc/from/only_test/variants_generics.rs
similarity index 100%
rename from module/core/derive_tools/tests/inc/only_test/from_inner_variants_generics.rs
rename to module/core/derive_tools/tests/inc/from/only_test/variants_generics.rs
diff --git a/module/core/derive_tools/tests/inc/from_inner_test.rs b/module/core/derive_tools/tests/inc/from/test.rs
similarity index 83%
rename from module/core/derive_tools/tests/inc/from_inner_test.rs
rename to module/core/derive_tools/tests/inc/from/test.rs
index 98890e6c2e..1214ad5a43 100644
--- a/module/core/derive_tools/tests/inc/from_inner_test.rs
+++ b/module/core/derive_tools/tests/inc/from/test.rs
@@ -7,4 +7,4 @@ use super::*;
 pub struct IsTransparent( bool );
 
 // include!( "./manual/basic.rs" );
-include!( "./only_test/from_inner.rs" );
+include!( "./only_test/basic.rs" );
diff --git a/module/core/derive_tools/tests/inc/from_inner_unit_manual_test.rs b/module/core/derive_tools/tests/inc/from/unit_manual_test.rs
similarity index 80%
rename from module/core/derive_tools/tests/inc/from_inner_unit_manual_test.rs
rename to module/core/derive_tools/tests/inc/from/unit_manual_test.rs
index 78b7578956..dc767e9fbb 100644
--- a/module/core/derive_tools/tests/inc/from_inner_unit_manual_test.rs
+++ b/module/core/derive_tools/tests/inc/from/unit_manual_test.rs
@@ -12,4 +12,4 @@ impl From< () > for UnitStruct
   }
 }
 
-include!( "./only_test/from_inner_unit.rs" );
+include!( "./only_test/unit.rs" );
diff --git a/module/core/derive_tools/tests/inc/from_inner_unit_test.rs b/module/core/derive_tools/tests/inc/from/unit_test.rs
similarity index 68%
rename from module/core/derive_tools/tests/inc/from_inner_unit_test.rs
rename to module/core/derive_tools/tests/inc/from/unit_test.rs
index e551263159..82690e5190 100644
--- a/module/core/derive_tools/tests/inc/from_inner_unit_test.rs
+++ b/module/core/derive_tools/tests/inc/from/unit_test.rs
@@ -3,4 +3,4 @@ use super::*;
 #[ derive( Debug, Clone, Copy, PartialEq, the_module::From ) ]
 struct UnitStruct;
 
-include!( "./only_test/from_inner_unit.rs" );
+include!( "./only_test/unit.rs" );
diff --git a/module/core/derive_tools/tests/inc/from_inner_variants_collisions.rs b/module/core/derive_tools/tests/inc/from/variants_collisions.rs
similarity index 89%
rename from module/core/derive_tools/tests/inc/from_inner_variants_collisions.rs
rename to module/core/derive_tools/tests/inc/from/variants_collisions.rs
index d7bb05fa83..aefa3be96f 100644
--- a/module/core/derive_tools/tests/inc/from_inner_variants_collisions.rs
+++ b/module/core/derive_tools/tests/inc/from/variants_collisions.rs
@@ -24,4 +24,4 @@ pub enum GetData
 // == begin of generated
 // == end of generated
 
-include!( "./only_test/from_inner_variants.rs" );
+include!( "./only_test/variants.rs" );
diff --git a/module/core/derive_tools/tests/inc/from_inner_variants_derive.rs b/module/core/derive_tools/tests/inc/from/variants_derive.rs
similarity index 85%
rename from module/core/derive_tools/tests/inc/from_inner_variants_derive.rs
rename to module/core/derive_tools/tests/inc/from/variants_derive.rs
index 1596a7f623..27792afbdc 100644
--- a/module/core/derive_tools/tests/inc/from_inner_variants_derive.rs
+++ b/module/core/derive_tools/tests/inc/from/variants_derive.rs
@@ -15,4 +15,4 @@ pub enum GetData
 // == begin of generated
 // == end of generated
 
-include!( "./only_test/from_inner_variants.rs" );
+include!( "./only_test/variants.rs" );
diff --git a/module/core/derive_tools/tests/inc/from_inner_variants_duplicates_all_off.rs b/module/core/derive_tools/tests/inc/from/variants_duplicates_all_off.rs
similarity index 92%
rename from module/core/derive_tools/tests/inc/from_inner_variants_duplicates_all_off.rs
rename to module/core/derive_tools/tests/inc/from/variants_duplicates_all_off.rs
index 8d352850ff..1eb00d2920 100644
--- a/module/core/derive_tools/tests/inc/from_inner_variants_duplicates_all_off.rs
+++ b/module/core/derive_tools/tests/inc/from/variants_duplicates_all_off.rs
@@ -42,4 +42,4 @@ impl From< ( String, String ) > for GetData
 
 // == end of generated
 
-include!( "./only_test/from_inner_variants_duplicates.rs" );
+include!( "./only_test/variants_duplicates.rs" );
diff --git a/module/core/derive_tools/tests/inc/from_inner_variants_duplicates_some_off.rs b/module/core/derive_tools/tests/inc/from/variants_duplicates_some_off.rs
similarity index 87%
rename from module/core/derive_tools/tests/inc/from_inner_variants_duplicates_some_off.rs
rename to module/core/derive_tools/tests/inc/from/variants_duplicates_some_off.rs
index 1fa60cb598..094d57a5f1 100644
--- a/module/core/derive_tools/tests/inc/from_inner_variants_duplicates_some_off.rs
+++ b/module/core/derive_tools/tests/inc/from/variants_duplicates_some_off.rs
@@ -22,4 +22,4 @@ pub enum GetData
 
 // == end of generated
 
-include!( "./only_test/from_inner_variants_duplicates.rs" );
+include!( "./only_test/variants_duplicates.rs" );
diff --git a/module/core/derive_tools/tests/inc/from_inner_variants_duplicates_some_off_default_off.rs b/module/core/derive_tools/tests/inc/from/variants_duplicates_some_off_default_off.rs
similarity index 88%
rename from module/core/derive_tools/tests/inc/from_inner_variants_duplicates_some_off_default_off.rs
rename to module/core/derive_tools/tests/inc/from/variants_duplicates_some_off_default_off.rs
index 9d60a25204..282b327e23 100644
--- a/module/core/derive_tools/tests/inc/from_inner_variants_duplicates_some_off_default_off.rs
+++ b/module/core/derive_tools/tests/inc/from/variants_duplicates_some_off_default_off.rs
@@ -24,4 +24,4 @@ pub enum GetData
 // == begin of generated
 // == end of generated
 
-include!( "./only_test/from_inner_variants_duplicates.rs" );
+include!( "./only_test/variants_duplicates.rs" );
diff --git a/module/core/derive_tools/tests/inc/from_inner_variants_generics.rs b/module/core/derive_tools/tests/inc/from/variants_generics.rs
similarity index 82%
rename from module/core/derive_tools/tests/inc/from_inner_variants_generics.rs
rename to module/core/derive_tools/tests/inc/from/variants_generics.rs
index 3c30a7d406..c163e39b7f 100644
--- a/module/core/derive_tools/tests/inc/from_inner_variants_generics.rs
+++ b/module/core/derive_tools/tests/inc/from/variants_generics.rs
@@ -14,4 +14,4 @@ pub enum GetData< 'a, T : ToString + ?Sized = str >
 // == begin of generated
 // == end of generated
 
-include!( "./only_test/from_inner_variants_generics.rs" );
+include!( "./only_test/variants_generics.rs" );
diff --git a/module/core/derive_tools/tests/inc/from_inner_variants_generics_where.rs b/module/core/derive_tools/tests/inc/from/variants_generics_where.rs
similarity index 83%
rename from module/core/derive_tools/tests/inc/from_inner_variants_generics_where.rs
rename to module/core/derive_tools/tests/inc/from/variants_generics_where.rs
index cfe6e82394..ec96c5313b 100644
--- a/module/core/derive_tools/tests/inc/from_inner_variants_generics_where.rs
+++ b/module/core/derive_tools/tests/inc/from/variants_generics_where.rs
@@ -16,4 +16,4 @@ where
 // == begin of generated
 // == end of generated
 
-include!( "./only_test/from_inner_variants_generics.rs" );
+include!( "./only_test/variants_generics.rs" );
diff --git a/module/core/derive_tools/tests/inc/from_inner_variants_manual.rs b/module/core/derive_tools/tests/inc/from/variants_manual.rs
similarity index 92%
rename from module/core/derive_tools/tests/inc/from_inner_variants_manual.rs
rename to module/core/derive_tools/tests/inc/from/variants_manual.rs
index 749d0d7d0d..9cd6e1e723 100644
--- a/module/core/derive_tools/tests/inc/from_inner_variants_manual.rs
+++ b/module/core/derive_tools/tests/inc/from/variants_manual.rs
@@ -38,4 +38,4 @@ impl From< &'static [ u8 ] > for GetData
   }
 }
 
-include!( "./only_test/from_inner_variants.rs" );
+include!( "./only_test/variants.rs" );
diff --git a/module/core/derive_tools/tests/inc/inner_from_manual_test.rs b/module/core/derive_tools/tests/inc/inner_from/manual_test.rs
similarity index 87%
rename from module/core/derive_tools/tests/inc/inner_from_manual_test.rs
rename to module/core/derive_tools/tests/inc/inner_from/manual_test.rs
index 7e1d5a5ee6..4313f84564 100644
--- a/module/core/derive_tools/tests/inc/inner_from_manual_test.rs
+++ b/module/core/derive_tools/tests/inc/inner_from/manual_test.rs
@@ -15,4 +15,4 @@ impl From< IsTransparent > for bool
   }
 }
 
-include!( "./only_test/inner_from.rs" );
+include!( "./only_test/basic.rs" );
diff --git a/module/core/derive_tools/tests/inc/inner_from_multiple_manual_test.rs b/module/core/derive_tools/tests/inc/inner_from/multiple_manual_test.rs
similarity index 83%
rename from module/core/derive_tools/tests/inc/inner_from_multiple_manual_test.rs
rename to module/core/derive_tools/tests/inc/inner_from/multiple_manual_test.rs
index 5b59a8a389..2bc7587221 100644
--- a/module/core/derive_tools/tests/inc/inner_from_multiple_manual_test.rs
+++ b/module/core/derive_tools/tests/inc/inner_from/multiple_manual_test.rs
@@ -12,4 +12,4 @@ impl From< StructWithManyFields > for ( i32, bool )
   }
 }
 
-include!( "./only_test/inner_from_multiple.rs" );
+include!( "./only_test/multiple.rs" );
diff --git a/module/core/derive_tools/tests/inc/inner_from_multiple_named_manual_test.rs b/module/core/derive_tools/tests/inc/inner_from/multiple_named_manual_test.rs
similarity index 81%
rename from module/core/derive_tools/tests/inc/inner_from_multiple_named_manual_test.rs
rename to module/core/derive_tools/tests/inc/inner_from/multiple_named_manual_test.rs
index 69db46283f..0a934e454f 100644
--- a/module/core/derive_tools/tests/inc/inner_from_multiple_named_manual_test.rs
+++ b/module/core/derive_tools/tests/inc/inner_from/multiple_named_manual_test.rs
@@ -16,4 +16,4 @@ impl From< StructNamedFields > for ( i32, bool )
   }
 }
 
-include!( "./only_test/inner_from_multiple_named.rs" );
+include!( "./only_test/multiple_named.rs" );
diff --git a/module/core/derive_tools/tests/inc/inner_from_multiple_named_test.rs b/module/core/derive_tools/tests/inc/inner_from/multiple_named_test.rs
similarity index 69%
rename from module/core/derive_tools/tests/inc/inner_from_multiple_named_test.rs
rename to module/core/derive_tools/tests/inc/inner_from/multiple_named_test.rs
index 07f93b2d15..6177841adf 100644
--- a/module/core/derive_tools/tests/inc/inner_from_multiple_named_test.rs
+++ b/module/core/derive_tools/tests/inc/inner_from/multiple_named_test.rs
@@ -7,4 +7,4 @@ struct StructNamedFields
   b: bool,
 }
 
-include!( "./only_test/inner_from_multiple_named.rs" );
+include!( "./only_test/multiple_named.rs" );
diff --git a/module/core/derive_tools/tests/inc/inner_from_multiple_test.rs b/module/core/derive_tools/tests/inc/inner_from/multiple_test.rs
similarity index 70%
rename from module/core/derive_tools/tests/inc/inner_from_multiple_test.rs
rename to module/core/derive_tools/tests/inc/inner_from/multiple_test.rs
index 6c2fe1f1ef..c99e112ca4 100644
--- a/module/core/derive_tools/tests/inc/inner_from_multiple_test.rs
+++ b/module/core/derive_tools/tests/inc/inner_from/multiple_test.rs
@@ -3,4 +3,4 @@ use super::*;
 #[ derive( Debug, PartialEq, Eq, the_module::InnerFrom ) ]
 struct StructWithManyFields( i32, bool );
 
-include!( "./only_test/inner_from_multiple.rs" );
+include!( "./only_test/multiple.rs" );
diff --git a/module/core/derive_tools/tests/inc/inner_from_named_manual_test.rs b/module/core/derive_tools/tests/inc/inner_from/named_manual_test.rs
similarity index 80%
rename from module/core/derive_tools/tests/inc/inner_from_named_manual_test.rs
rename to module/core/derive_tools/tests/inc/inner_from/named_manual_test.rs
index d79107577a..4d7805644d 100644
--- a/module/core/derive_tools/tests/inc/inner_from_named_manual_test.rs
+++ b/module/core/derive_tools/tests/inc/inner_from/named_manual_test.rs
@@ -15,4 +15,4 @@ impl From< MyStruct > for i32
   }
 }
 
-include!( "./only_test/inner_from_named.rs" );
+include!( "./only_test/named.rs" );
diff --git a/module/core/derive_tools/tests/inc/inner_from_named_test.rs b/module/core/derive_tools/tests/inc/inner_from/named_test.rs
similarity index 69%
rename from module/core/derive_tools/tests/inc/inner_from_named_test.rs
rename to module/core/derive_tools/tests/inc/inner_from/named_test.rs
index da449524f3..2f6d3ccccc 100644
--- a/module/core/derive_tools/tests/inc/inner_from_named_test.rs
+++ b/module/core/derive_tools/tests/inc/inner_from/named_test.rs
@@ -6,4 +6,4 @@ struct MyStruct
   a: i32,
 }
 
-include!( "./only_test/inner_from_named.rs" );
+include!( "./only_test/named.rs" );
diff --git a/module/core/derive_tools/tests/inc/only_test/inner_from.rs b/module/core/derive_tools/tests/inc/inner_from/only_test/basic.rs
similarity index 100%
rename from module/core/derive_tools/tests/inc/only_test/inner_from.rs
rename to module/core/derive_tools/tests/inc/inner_from/only_test/basic.rs
diff --git a/module/core/derive_tools/tests/inc/only_test/inner_from_multiple.rs b/module/core/derive_tools/tests/inc/inner_from/only_test/multiple.rs
similarity index 85%
rename from module/core/derive_tools/tests/inc/only_test/inner_from_multiple.rs
rename to module/core/derive_tools/tests/inc/inner_from/only_test/multiple.rs
index dca4fc2884..776347fd66 100644
--- a/module/core/derive_tools/tests/inc/only_test/inner_from_multiple.rs
+++ b/module/core/derive_tools/tests/inc/inner_from/only_test/multiple.rs
@@ -1,5 +1,5 @@
 #[ test ]
-fn from_inner_named() 
+fn from_named()
 {
   let got : ( i32, bool ) = StructWithManyFields( 10, true ).into();
   let exp = ( 10 , true );
diff --git a/module/core/derive_tools/tests/inc/only_test/inner_from_multiple_named.rs b/module/core/derive_tools/tests/inc/inner_from/only_test/multiple_named.rs
similarity index 85%
rename from module/core/derive_tools/tests/inc/only_test/inner_from_multiple_named.rs
rename to module/core/derive_tools/tests/inc/inner_from/only_test/multiple_named.rs
index 0ac967c2f7..05b9a66e9d 100644
--- a/module/core/derive_tools/tests/inc/only_test/inner_from_multiple_named.rs
+++ b/module/core/derive_tools/tests/inc/inner_from/only_test/multiple_named.rs
@@ -1,5 +1,5 @@
 #[ test ]
-fn from_inner_named() 
+fn from_named()
 {
   let got : ( i32, bool ) = StructNamedFields{ a: 10, b: true }.into();
   let exp = ( 10 , true );
diff --git a/module/core/derive_tools/tests/inc/only_test/inner_from_named.rs b/module/core/derive_tools/tests/inc/inner_from/only_test/named.rs
similarity index 100%
rename from module/core/derive_tools/tests/inc/only_test/inner_from_named.rs
rename to module/core/derive_tools/tests/inc/inner_from/only_test/named.rs
diff --git a/module/core/derive_tools/tests/inc/only_test/inner_from_unit.rs b/module/core/derive_tools/tests/inc/inner_from/only_test/unit.rs
similarity index 100%
rename from module/core/derive_tools/tests/inc/only_test/inner_from_unit.rs
rename to module/core/derive_tools/tests/inc/inner_from/only_test/unit.rs
diff --git a/module/core/derive_tools/tests/inc/inner_from_test.rs b/module/core/derive_tools/tests/inc/inner_from/test.rs
similarity index 69%
rename from module/core/derive_tools/tests/inc/inner_from_test.rs
rename to module/core/derive_tools/tests/inc/inner_from/test.rs
index b2c70b3eed..25ff2921e0 100644
--- a/module/core/derive_tools/tests/inc/inner_from_test.rs
+++ b/module/core/derive_tools/tests/inc/inner_from/test.rs
@@ -6,5 +6,4 @@ use super::*;
 #[ derive( Debug, Clone, Copy, PartialEq, the_module::InnerFrom ) ]
 pub struct IsTransparent( bool );
 
-// include!( "./manual/basic.rs" );
-include!( "./only_test/inner_from.rs" );
+include!( "./only_test/basic.rs" );
diff --git a/module/core/derive_tools/tests/inc/inner_from_unit_manual_test.rs b/module/core/derive_tools/tests/inc/inner_from/unit_manual_test.rs
similarity index 83%
rename from module/core/derive_tools/tests/inc/inner_from_unit_manual_test.rs
rename to module/core/derive_tools/tests/inc/inner_from/unit_manual_test.rs
index a4da6ca8f7..351db13dbb 100644
--- a/module/core/derive_tools/tests/inc/inner_from_unit_manual_test.rs
+++ b/module/core/derive_tools/tests/inc/inner_from/unit_manual_test.rs
@@ -13,4 +13,4 @@ impl From< UnitStruct > for ()
 }
 
 // include!( "./manual/basic.rs" );
-include!( "./only_test/inner_from_unit.rs" );
+include!( "./only_test/unit.rs" );
diff --git a/module/core/derive_tools/tests/inc/inner_from_unit_test.rs b/module/core/derive_tools/tests/inc/inner_from/unit_test.rs
similarity index 70%
rename from module/core/derive_tools/tests/inc/inner_from_unit_test.rs
rename to module/core/derive_tools/tests/inc/inner_from/unit_test.rs
index 0bc0f38fe5..6d60f9cc6a 100644
--- a/module/core/derive_tools/tests/inc/inner_from_unit_test.rs
+++ b/module/core/derive_tools/tests/inc/inner_from/unit_test.rs
@@ -4,4 +4,4 @@ use super::*;
 pub struct UnitStruct;
 
 
-include!( "./only_test/inner_from_unit.rs" );
+include!( "./only_test/unit.rs" );
diff --git a/module/core/derive_tools/tests/inc/mod.rs b/module/core/derive_tools/tests/inc/mod.rs
index 779ae76708..f100189dbf 100644
--- a/module/core/derive_tools/tests/inc/mod.rs
+++ b/module/core/derive_tools/tests/inc/mod.rs
@@ -48,53 +48,52 @@ mod deref_mut_manual_test;
 mod deref_mut_test;
 
 #[ cfg( feature = "derive_from" ) ]
-mod from_inner_named_test;
-mod from_inner_named_manual_test;
+#[ path = "from" ]
+mod tests
+{
+	#[ allow( unused_imports ) ]
+	use super::*;
+
+	mod named_test;
+	mod named_manual_test;
+
+	mod manual_test;
+	mod multiple_named_manual_test;
+	mod multiple_manual_test;
+	mod unit_manual_test;
+	mod test;
+	mod multiple_named_test;
+	mod unit_test;
+	mod multiple_test;
+
+	mod variants_manual;
+	mod variants_derive;
+
+	mod variants_duplicates_all_off;
+	mod variants_duplicates_some_off;
+	mod variants_duplicates_some_off_default_off;
+
+	mod variants_generics;
+	mod variants_generics_where;
+	mod variants_collisions;
+}
 
-mod from_inner_manual_test;
-mod from_inner_multiple_named_manual_test;
-mod from_inner_multiple_manual_test;
-mod from_inner_unit_manual_test;
-#[ cfg( feature = "derive_from" ) ]
-mod from_inner_test;
-#[ cfg( feature = "derive_from" ) ]
-mod from_inner_multiple_named_test;
-#[ cfg( feature = "derive_from" ) ]
-mod from_inner_unit_test;
-#[ cfg( feature = "derive_from" ) ]
-mod from_inner_multiple_test;
-
-#[ cfg( feature = "derive_from" ) ]
-mod from_inner_variants_manual;
-#[ cfg( feature = "derive_from" ) ]
-mod from_inner_variants_derive;
-
-#[ cfg( feature = "derive_from" ) ]
-mod from_inner_variants_duplicates_all_off;
-#[ cfg( feature = "derive_from" ) ]
-mod from_inner_variants_duplicates_some_off;
-#[ cfg( feature = "derive_from" ) ]
-mod from_inner_variants_duplicates_some_off_default_off;
-
-#[ cfg( feature = "derive_from" ) ]
-mod from_inner_variants_generics;
-#[ cfg( feature = "derive_from" ) ]
-mod from_inner_variants_generics_where;
-#[ cfg( feature = "derive_from" ) ]
-mod from_inner_variants_collisions;
-
-mod inner_from_manual_test;
-mod inner_from_named_manual_test;
-mod inner_from_multiple_named_manual_test;
-mod inner_from_multiple_manual_test;
-mod inner_from_unit_manual_test;
-#[ cfg( feature = "derive_inner_from" ) ]
-mod inner_from_test;
-#[ cfg( feature = "derive_inner_from" ) ]
-mod inner_from_named_test;
-#[ cfg( feature = "derive_inner_from" ) ]
-mod inner_from_multiple_named_test;
-#[ cfg( feature = "derive_inner_from" ) ]
-mod inner_from_unit_test;
 #[ cfg( feature = "derive_inner_from" ) ]
-mod inner_from_multiple_test;
+#[ path = "inner_from" ]
+mod inner_from_tests
+{
+	#[ allow( unused_imports ) ]
+	use super::*;
+
+	mod manual_test;
+	mod named_manual_test;
+	mod multiple_named_manual_test;
+	mod multiple_manual_test;
+	mod unit_manual_test;
+	mod test;
+	mod named_test;
+	mod multiple_named_test;
+	mod unit_test;
+	mod multiple_test;
+
+}
diff --git a/module/core/derive_tools/tests/inc/only_test/reflect_struct.rs b/module/core/derive_tools/tests/inc/only_test/reflect_struct.rs
deleted file mode 100644
index a376802fc5..0000000000
--- a/module/core/derive_tools/tests/inc/only_test/reflect_struct.rs
+++ /dev/null
@@ -1,28 +0,0 @@
-#[ test ]
-fn reflect_basic_test()
-{
-  use reflect::Entity;
-
-  let ins = Struct1
-  {
-    f1 : 1,
-    f2 : "2".into(),
-    f3 : "3",
-  };
-
-  a_id!( reflect::reflect( &ins ).is_container(), true );
-  a_id!( reflect::reflect( &ins ).len(), 3 );
-  a_id!( reflect::reflect( &ins ).type_name(), "derive_tests::inc::reflect_struct_manual_test::Struct1" );
-  let names = reflect::reflect( &ins ).elements().map( | e | e.key ).collect::< Vec< _ > >();
-  a_id!( names, vec![ reflect::Primitive::str( "f1" ), reflect::Primitive::str( "f2" ), reflect::Primitive::str( "f3" ) ] );
-  let types = reflect::reflect( &ins ).elements().map( | e | e.val.type_name() ).collect::< Vec< _ > >();
-  a_id!( types, vec![ "i32", "alloc::string::String", "&str" ] );
-
-  let f1 = reflect::reflect( &ins ).elements().next().unwrap();
-  a_id!( f1.key, reflect::Primitive::str( "f1" ) );
-  a_id!( f1.val.is_container(), false );
-  a_id!( f1.val.len(), 0 );
-  a_id!( f1.val.type_name(), "i32" );
-  a_id!( f1.val.elements().collect::< Vec< _ > >(), vec![] );
-
-}
diff --git a/module/core/derive_tools/tests/inc/only_test/reflect_struct_in_struct.rs b/module/core/derive_tools/tests/inc/only_test/reflect_struct_in_struct.rs
deleted file mode 100644
index 9d205fc776..0000000000
--- a/module/core/derive_tools/tests/inc/only_test/reflect_struct_in_struct.rs
+++ /dev/null
@@ -1,31 +0,0 @@
-#[ test ]
-fn reflect_struct_in_struct()
-{
-  use reflect::Entity;
-
-  let ins = Struct1
-  {
-    f1 : 1,
-    f2 : "2".into(),
-    f3 : Struct2 { s1 : 10, s2 : "20".into(), s3 : "30" },
-  };
-
-  a_id!( reflect::reflect( &ins ).is_container(), true );
-  a_id!( reflect::reflect( &ins ).len(), 3 );
-  a_id!( reflect::reflect( &ins ).type_name(), "derive_tests::inc::reflect_struct_in_struct_manual_test::Struct1" );
-  let names = reflect::reflect( &ins ).elements().map( | e | e.key ).collect::< Vec< _ > >();
-  a_id!( names, vec![ reflect::Primitive::str( "f1" ), reflect::Primitive::str( "f2" ), reflect::Primitive::str( "f3" ) ] );
-  let types = reflect::reflect( &ins ).elements().map( | e | e.val.type_name() ).collect::< Vec< _ > >();
-  a_id!( types, vec![ "i32", "alloc::string::String", "derive_tests::inc::reflect_struct_in_struct_manual_test::Struct2" ] );
-
-  let f3 = reflect::reflect( &ins ).elements().skip( 2 ).next().unwrap();
-  a_id!( f3.key, reflect::Primitive::str( "f3" ) );
-  a_id!( f3.val.is_container(), true );
-  a_id!( f3.val.len(), 3 );
-  a_id!( f3.val.type_name(), "derive_tests::inc::reflect_struct_in_struct_manual_test::Struct2" );
-  let names = f3.val.elements().map( | e | e.key ).collect::< Vec< _ > >();
-  a_id!( names, vec![ reflect::Primitive::str( "s1" ), reflect::Primitive::str( "s2" ), reflect::Primitive::str( "s3" ) ] );
-  let types = f3.val.elements().map( | e | e.val.type_name() ).collect::< Vec< _ > >();
-  a_id!( types, vec![ "i32", "alloc::string::String", "&str" ] );
-
-}
diff --git a/module/core/derive_tools/tests/inc/only_test/reflect_struct_with_lifetime.rs b/module/core/derive_tools/tests/inc/only_test/reflect_struct_with_lifetime.rs
deleted file mode 100644
index 35adf13d24..0000000000
--- a/module/core/derive_tools/tests/inc/only_test/reflect_struct_with_lifetime.rs
+++ /dev/null
@@ -1,49 +0,0 @@
-#[ test ]
-fn reflect_struct_with_lifetime()
-{
-  use reflect::Entity;
-
-  // assumptions
-  a_id!( core::any::TypeId::of::< &'static str >(), core::any::TypeId::of::< &str >() );
-
-  // structure
-  let x = 1;
-  let z = "3";
-  let ins = Struct1
-  {
-    f1 : &x,
-    f2 : 2,
-    f3 : &z,
-  };
-
-  // for information
-  println!( "Struct1 : {:?}", reflect( &ins ).type_id() );
-  println!( "Struct1.f1 : {:?}", reflect( &ins ).elements().next().unwrap().val.type_id() );
-  println!( "Struct1.f2 : {:?}", reflect( &ins ).elements().skip( 1 ).next().unwrap().val.type_id() );
-  println!( "Struct1.f3 : {:?}", reflect( &ins ).elements().skip( 2 ).next().unwrap().val.type_id() );
-
-  println!( "i32.type_id : {:?}", reflect( &1i32 ).type_id() );
-  println!( "i32.type_name : {:?}", reflect( &1i32 ).type_name() );
-  println!( "&i32.type_id : {:?}", reflect( &&1i32 ).type_id() );
-  println!( "&i32.type_name : {:?}", reflect( &&1i32 ).type_name() );
-
-  // inspection of structure
-  a_id!( reflect::reflect( &ins ).is_container(), true );
-  a_id!( reflect::reflect( &ins ).len(), 3 );
-  a_id!( reflect::reflect( &ins ).type_name(), "derive_tests::inc::reflect_struct_with_lifetime_manual_test::Struct1" );
-  a_id!( reflect::reflect( &ins ).type_id(), core::any::TypeId::of::< Struct1< 'static, 'static > >() );
-  let names = reflect::reflect( &ins ).elements().map( | e | e.key ).collect::< Vec< _ > >();
-  a_id!( names, vec![ reflect::Primitive::str( "f1" ), reflect::Primitive::str( "f2" ), reflect::Primitive::str( "f3" ) ] );
-  let types = reflect::reflect( &ins ).elements().map( | e | e.val.type_name() ).collect::< Vec< _ > >();
-  a_id!( types, vec![ "&i32", "i32", "&str" ] );
-
-  // inspection of a field
-  let f1 = reflect::reflect( &ins ).elements().next().unwrap();
-  a_id!( f1.key, reflect::Primitive::str( "f1" ) );
-  a_id!( f1.val.is_container(), false );
-  a_id!( f1.val.len(), 0 );
-  a_id!( f1.val.type_name(), "&i32" );
-  a_id!( f1.val.type_id(), core::any::TypeId::of::< &'static i32 >() );
-  a_id!( f1.val.elements().collect::< Vec< _ > >(), vec![] );
-
-}
diff --git a/module/core/derive_tools_meta/Cargo.toml b/module/core/derive_tools_meta/Cargo.toml
index a266fd1ee6..747a5fa892 100644
--- a/module/core/derive_tools_meta/Cargo.toml
+++ b/module/core/derive_tools_meta/Cargo.toml
@@ -35,6 +35,7 @@ default = [
   "derive_deref_mut",
   "derive_deref",
   "derive_from",
+  "derive_new",
   "derive_inner_from",
   "derive_as_ref",
   "derive_as_mut",
@@ -45,28 +46,29 @@ full = [
   "derive_deref_mut",
   "derive_deref",
   "derive_from",
+  "derive_new",
   "derive_inner_from",
   "derive_as_ref",
   "derive_as_mut",
   "derive_variadic_from",
 ]
-enabled = []
+enabled = [ "macro_tools/enabled", "iter_tools/enabled", "former_types/enabled" ]
 
 derive_as_mut = []
 derive_as_ref = []
 derive_deref = []
 derive_deref_mut = []
 derive_from = []
+derive_new = []
 derive_inner_from = []
 derive_variadic_from = []
 
 [dependencies]
+# xxx : qqq : optimize features set
 macro_tools = { workspace = true, features = [ "full" ] }
 iter_tools = { workspace = true, features = [ "full" ] }
-former_types = { workspace = true, features = [ "enabled", "types_component_assign" ] }
+former_types = { workspace = true, features = [ "types_component_assign" ] }
 const_format = { version = "0.2.32" }
 
-# qqq : optimize features set
-
 [dev-dependencies]
 test_tools = { workspace = true }
diff --git a/module/core/derive_tools_meta/src/derive.rs b/module/core/derive_tools_meta/src/derive.rs
index 4f5242d2be..5008fe2fab 100644
--- a/module/core/derive_tools_meta/src/derive.rs
+++ b/module/core/derive_tools_meta/src/derive.rs
@@ -20,6 +20,8 @@ pub mod deref_mut;
 pub mod from;
 #[ cfg( feature = "derive_inner_from" ) ]
 pub mod inner_from;
+#[ cfg( feature = "derive_new" ) ]
+pub mod new;
 #[ cfg( feature = "derive_variadic_from" ) ]
 pub mod variadic_from;
 #[ cfg( feature = "derive_reflect" ) ]
diff --git a/module/core/derive_tools_meta/src/derive/from.rs b/module/core/derive_tools_meta/src/derive/from.rs
index d05b416235..88783c21e6 100644
--- a/module/core/derive_tools_meta/src/derive/from.rs
+++ b/module/core/derive_tools_meta/src/derive/from.rs
@@ -18,7 +18,7 @@ use item_attributes::*;
 
 pub fn from( input : proc_macro::TokenStream ) -> Result< proc_macro2::TokenStream >
 {
-  use macro_tools::quote::ToTokens;
+  // use macro_tools::quote::ToTokens;
 
   let original_input = input.clone();
   let parsed = syn::parse::< StructLike >( input )?;
@@ -48,7 +48,7 @@ pub fn from( input : proc_macro::TokenStream ) -> Result< proc_macro2::TokenStre
           &generics_where,
         ),
         ( 1, Some( mut field_names ) ) =>
-        generate_from_single_field_named
+        generate_single_field_named
         (
           item_name,
           &generics_impl,
@@ -58,7 +58,7 @@ pub fn from( input : proc_macro::TokenStream ) -> Result< proc_macro2::TokenStre
           &field_types.next().unwrap(),
         ),
         ( 1, None ) =>
-        generate_from_single_field
+        generate_single_field
         (
           item_name,
           &generics_impl,
@@ -67,7 +67,7 @@ pub fn from( input : proc_macro::TokenStream ) -> Result< proc_macro2::TokenStre
           &field_types.next().unwrap(),
         ),
         ( _, Some( field_names ) ) =>
-        generate_from_multiple_fields_named
+        generate_multiple_fields_named
         (
           item_name,
           &generics_impl,
@@ -77,7 +77,7 @@ pub fn from( input : proc_macro::TokenStream ) -> Result< proc_macro2::TokenStre
           field_types,
         ),
         ( _, None ) =>
-        generate_from_multiple_fields
+        generate_multiple_fields
         (
           item_name,
           &generics_impl,
@@ -91,14 +91,14 @@ pub fn from( input : proc_macro::TokenStream ) -> Result< proc_macro2::TokenStre
     StructLike::Enum( ref item ) =>
     {
 
-      let mut map = std::collections::HashMap::new();
-      item.variants.iter().for_each( | variant |
-      {
-        map
-        .entry( variant.fields.to_token_stream().to_string() )
-        .and_modify( | e | *e += 1 )
-        .or_insert( 1 );
-      });
+      // let mut map = std::collections::HashMap::new();
+      // item.variants.iter().for_each( | variant |
+      // {
+      //   map
+      //   .entry( variant.fields.to_token_stream().to_string() )
+      //   .and_modify( | e | *e += 1 )
+      //   .or_insert( 1 );
+      // });
 
       let variants_result : Result< Vec< proc_macro2::TokenStream > > = item.variants.iter().map( | variant |
       {
@@ -141,7 +141,7 @@ pub fn from( input : proc_macro::TokenStream ) -> Result< proc_macro2::TokenStre
   Ok( result )
 }
 
-// qqq  : document, add example of generated code
+// qqq : document, add example of generated code
 fn generate_unit
 (
   item_name : &syn::Ident,
@@ -167,8 +167,8 @@ fn generate_unit
   }
 }
 
-// qqq  : document, add example of generated code
-fn generate_from_single_field_named
+// qqq : document, add example of generated code
+fn generate_single_field_named
 (
   item_name : &syn::Ident,
   generics_impl : &syn::punctuated::Punctuated< syn::GenericParam, syn::token::Comma >,
@@ -188,8 +188,8 @@ fn generate_from_single_field_named
       #generics_where
     {
       #[ inline( always ) ]
-      // fn from( src: i32 ) -> Self
-      fn from( src: #field_type ) -> Self
+      // fn from( src : i32 ) -> Self
+      fn from( src : #field_type ) -> Self
       {
         // Self { a: src }
         Self { #field_name: src }
@@ -198,8 +198,8 @@ fn generate_from_single_field_named
   }
 }
 
-// qqq  : document, add example of generated code
-fn generate_from_single_field
+// qqq : document, add example of generated code
+fn generate_single_field
 (
   item_name : &syn::Ident,
   generics_impl : &syn::punctuated::Punctuated< syn::GenericParam, syn::token::Comma >,
@@ -219,18 +219,18 @@ fn generate_from_single_field
       #generics_where
     {
       #[ inline( always ) ]
-      // fn from( src: bool ) -> Self
-      fn from( src: #field_type ) -> Self
+      // fn from( src : bool ) -> Self
+      fn from( src : #field_type ) -> Self
       {
-        // Self(src)
-        Self(src)
+        // Self( src )
+        Self( src )
       }
     }
   }
 }
 
 // qqq : document, add example of generated code
-fn generate_from_multiple_fields_named< 'a >
+fn generate_multiple_fields_named< 'a >
 (
   item_name : &syn::Ident,
   generics_impl : &syn::punctuated::Punctuated< syn::GenericParam, syn::token::Comma >,
@@ -260,7 +260,7 @@ fn generate_from_multiple_fields_named< 'a >
       #generics_where
     {
       #[ inline( always ) ]
-      // fn from( src: (i32, bool) ) -> Self
+      // fn from( src : (i32, bool) ) -> Self
       fn from( src : ( #( #field_types ),* ) ) -> Self
       {
         // StructNamedFields{ a: src.0, b: src.1 }
@@ -271,8 +271,8 @@ fn generate_from_multiple_fields_named< 'a >
 
 }
 
-// qqq  : document, add example of generated code
-fn generate_from_multiple_fields< 'a >
+// qqq : document, add example of generated code
+fn generate_multiple_fields< 'a >
 (
   item_name : &syn::Ident,
   generics_impl : &syn::punctuated::Punctuated< syn::GenericParam, syn::token::Comma >,
@@ -301,7 +301,7 @@ fn generate_from_multiple_fields< 'a >
       #generics_where
     {
       #[ inline( always ) ]
-      // fn from( src: (i32, bool) ) -> Self
+      // fn from( src : (i32, bool) ) -> Self
       fn from( src : ( #( #field_types ),* ) ) -> Self
       {
         // StructWithManyFields( src.0, src.1 )
@@ -311,7 +311,7 @@ fn generate_from_multiple_fields< 'a >
   }
 }
 
-// qqq  : document, add example of generated code
+// qqq : document, add example of generated code
 fn variant_generate
 (
   item_name : &syn::Ident,
diff --git a/module/core/derive_tools_meta/src/derive/inner_from.rs b/module/core/derive_tools_meta/src/derive/inner_from.rs
index 23020e93d4..2226df43d8 100644
--- a/module/core/derive_tools_meta/src/derive/inner_from.rs
+++ b/module/core/derive_tools_meta/src/derive/inner_from.rs
@@ -57,7 +57,7 @@ pub fn inner_from( input : proc_macro::TokenStream ) -> Result< proc_macro2::Tok
   Ok( result )
 }
 
-// qqq  : document, add example of generated code
+// qqq : document, add example of generated code
 fn from_impl_named
 (
   item_name : &syn::Ident,
@@ -73,8 +73,8 @@ fn from_impl_named
     impl From< #item_name > for #field_type
     {
       #[ inline( always ) ]
-      // fm from( src: MyStruct ) -> Self
-      fn from( src: #item_name ) -> Self
+      // fm from( src : MyStruct ) -> Self
+      fn from( src : #item_name ) -> Self
       {
         // src.a
         src.#field_name
@@ -83,7 +83,7 @@ fn from_impl_named
   }
 }
 
-// qqq  : document, add example of generated code
+// qqq : document, add example of generated code
 fn from_impl
 (
   item_name : &syn::Ident,
@@ -98,8 +98,8 @@ fn from_impl
     impl From< #item_name > for #field_type
     {
       #[ inline( always ) ]
-      // fn from( src: IsTransparent ) -> Self
-      fn from( src: #item_name ) -> Self
+      // fn from( src : IsTransparent ) -> Self
+      fn from( src : #item_name ) -> Self
       {
         src.0
       }
@@ -107,7 +107,7 @@ fn from_impl
   }
 }
 
-// qqq  : document, add example of generated code
+// qqq : document, add example of generated code
 fn from_impl_multiple_fields< 'a >
 (
   item_name : &syn::Ident,
@@ -123,8 +123,8 @@ fn from_impl_multiple_fields< 'a >
     impl From< #item_name > for ( #(#field_types), *)
     {
       #[ inline( always ) ]
-      // fn from( src: StructWithManyFields ) -> Self
-      fn from( src: #item_name ) -> Self
+      // fn from( src : StructWithManyFields ) -> Self
+      fn from( src : #item_name ) -> Self
       {
         //( src.0, src.1 )
         (#(#params), *)
@@ -133,7 +133,7 @@ fn from_impl_multiple_fields< 'a >
   }
 }
 
-// qqq  : document, add example of generated code
+// qqq : document, add example of generated code
 fn unit( item_name : &syn::Ident ) -> proc_macro2::TokenStream
 {
   qt!
@@ -144,8 +144,8 @@ fn unit( item_name : &syn::Ident ) -> proc_macro2::TokenStream
     impl From< #item_name > for ()
     {
       #[ inline( always ) ]
-      // fn from( src: UnitStruct ) -> ()
-      fn from( src: #item_name ) -> ()
+      // fn from( src : UnitStruct ) -> ()
+      fn from( src : #item_name ) -> ()
       {
         ()
       }
diff --git a/module/core/derive_tools_meta/src/derive/new.rs b/module/core/derive_tools_meta/src/derive/new.rs
new file mode 100644
index 0000000000..4bfb0761bb
--- /dev/null
+++ b/module/core/derive_tools_meta/src/derive/new.rs
@@ -0,0 +1,403 @@
+use super::*;
+use macro_tools::
+{
+  attr,
+  diag,
+  generic_params,
+  item_struct,
+  struct_like::StructLike,
+  Result,
+};
+
+#[ path = "from/field_attributes.rs" ]
+mod field_attributes;
+use field_attributes::*;
+#[ path = "from/item_attributes.rs" ]
+mod item_attributes;
+use item_attributes::*;
+
+//
+
+// xxx : qqq : implement
+pub fn new( input : proc_macro::TokenStream ) -> Result< proc_macro2::TokenStream >
+{
+  // use macro_tools::quote::ToTokens;
+
+  let original_input = input.clone();
+  let parsed = syn::parse::< StructLike >( input )?;
+  let has_debug = attr::has_debug( parsed.attrs().iter() )?;
+  let item_attrs = ItemAttributes::from_attrs( parsed.attrs().iter() )?;
+  let item_name = &parsed.ident();
+
+  let ( _generics_with_defaults, generics_impl, generics_ty, generics_where )
+  = generic_params::decompose( &parsed.generics() );
+
+  let result = match parsed
+  {
+    StructLike::Unit( ref item ) | StructLike::Struct( ref item ) =>
+    {
+
+      let mut field_types = item_struct::field_types( &item );
+      let field_names = item_struct::field_names( &item );
+
+      match ( field_types.len(), field_names )
+      {
+        ( 0, _ ) =>
+        generate_unit
+        (
+          item_name,
+          &generics_impl,
+          &generics_ty,
+          &generics_where,
+        ),
+        ( 1, Some( mut field_names ) ) =>
+        generate_single_field_named
+        (
+          item_name,
+          &generics_impl,
+          &generics_ty,
+          &generics_where,
+          field_names.next().unwrap(),
+          &field_types.next().unwrap(),
+        ),
+        ( 1, None ) =>
+        generate_single_field
+        (
+          item_name,
+          &generics_impl,
+          &generics_ty,
+          &generics_where,
+          &field_types.next().unwrap(),
+        ),
+        ( _, Some( field_names ) ) =>
+        generate_multiple_fields_named
+        (
+          item_name,
+          &generics_impl,
+          &generics_ty,
+          &generics_where,
+          field_names,
+          field_types,
+        ),
+        ( _, None ) =>
+        generate_multiple_fields
+        (
+          item_name,
+          &generics_impl,
+          &generics_ty,
+          &generics_where,
+          field_types,
+        ),
+      }
+
+    },
+    StructLike::Enum( ref item ) =>
+    {
+
+      let variants_result : Result< Vec< proc_macro2::TokenStream > > = item.variants.iter().map( | variant |
+      {
+        variant_generate
+        (
+          item_name,
+          &item_attrs,
+          &generics_impl,
+          &generics_ty,
+          &generics_where,
+          variant,
+          &original_input,
+        )
+      }).collect();
+
+      let variants = variants_result?;
+
+      qt!
+      {
+        #( #variants )*
+      }
+    },
+  };
+
+  if has_debug
+  {
+    let about = format!( "derive : New\nstructure : {item_name}" );
+    diag::report_print( about, &original_input, &result );
+  }
+
+  Ok( result )
+}
+
+// xxx : qqq : implement
+// qqq : document, add example of generated code
+fn generate_unit
+(
+  item_name : &syn::Ident,
+  generics_impl : &syn::punctuated::Punctuated< syn::GenericParam, syn::token::Comma >,
+  generics_ty : &syn::punctuated::Punctuated< syn::GenericParam, syn::token::Comma >,
+  generics_where: &syn::punctuated::Punctuated< syn::WherePredicate, syn::token::Comma >,
+)
+-> proc_macro2::TokenStream
+{
+  qt!
+  {
+    // impl UnitStruct
+    impl< #generics_impl > #item_name< #generics_ty >
+    where
+      #generics_where
+    {
+      #[ inline( always ) ]
+      fn new() -> Self
+      {
+        Self
+      }
+    }
+  }
+}
+
+// xxx : qqq : implement
+// qqq : document, add example of generated code
+fn generate_single_field_named
+(
+  item_name : &syn::Ident,
+  generics_impl : &syn::punctuated::Punctuated< syn::GenericParam, syn::token::Comma >,
+  generics_ty : &syn::punctuated::Punctuated< syn::GenericParam, syn::token::Comma >,
+  generics_where: &syn::punctuated::Punctuated< syn::WherePredicate, syn::token::Comma >,
+  field_name : &syn::Ident,
+  field_type : &syn::Type,
+)
+-> proc_macro2::TokenStream
+{
+  qt!
+  {
+    #[ automatically_derived ]
+    // impl MyStruct
+    impl< #generics_impl > #item_name< #generics_ty >
+    where
+      #generics_where
+    {
+      #[ inline( always ) ]
+      // fn new( src : i32 ) -> Self
+      fn new( src : #field_type ) -> Self
+      {
+        // Self { a: src }
+        Self { #field_name: src }
+      }
+    }
+  }
+}
+
+// xxx : qqq : implement
+// qqq : document, add example of generated code
+fn generate_single_field
+(
+  item_name : &syn::Ident,
+  generics_impl : &syn::punctuated::Punctuated< syn::GenericParam, syn::token::Comma >,
+  generics_ty : &syn::punctuated::Punctuated< syn::GenericParam, syn::token::Comma >,
+  generics_where: &syn::punctuated::Punctuated< syn::WherePredicate, syn::token::Comma >,
+  field_type : &syn::Type,
+)
+-> proc_macro2::TokenStream
+{
+
+  qt!
+  {
+    #[automatically_derived]
+    // impl IsTransparent
+    impl< #generics_impl > #item_name< #generics_ty >
+    where
+      #generics_where
+    {
+      #[ inline( always ) ]
+      // fn new( src : bool ) -> Self
+      fn new( src : #field_type ) -> Self
+      {
+        // Self( src )
+        Self( src )
+      }
+    }
+  }
+}
+
+// xxx : qqq : implement
+// qqq : document, add example of generated code
+fn generate_multiple_fields_named< 'a >
+(
+  item_name : &syn::Ident,
+  generics_impl : &syn::punctuated::Punctuated< syn::GenericParam, syn::token::Comma >,
+  generics_ty : &syn::punctuated::Punctuated< syn::GenericParam, syn::token::Comma >,
+  generics_where: &syn::punctuated::Punctuated< syn::WherePredicate, syn::token::Comma >,
+  field_names : Box< dyn macro_tools::IterTrait< 'a, &'a syn::Ident > + '_ >,
+  field_types : impl macro_tools::IterTrait< 'a, &'a syn::Type >,
+)
+-> proc_macro2::TokenStream
+{
+
+  let params : Vec< proc_macro2::TokenStream > = field_names
+  .enumerate()
+  .map(| ( index, field_name ) |
+  {
+    let index = index.to_string().parse::< proc_macro2::TokenStream >().unwrap();
+    qt! { #field_name : src.#index }
+  })
+  .collect();
+
+  let field_types : Vec< _ > = field_types.collect();
+  qt!
+  {
+    // impl StructNamedFields
+    impl< #generics_impl > #item_name< #generics_ty >
+    where
+      #generics_where
+    {
+      #[ inline( always ) ]
+      // fn new( src : ( i32, bool ) ) -> Self
+      fn new( src : ( #( #field_types ),* ) ) -> Self
+      {
+        // StructNamedFields{ a : src.0, b : src.1 }
+        #item_name { #(#params),* }
+      }
+    }
+  }
+
+}
+
+// xxx : qqq : implement
+// qqq : document, add example of generated code
+fn generate_multiple_fields< 'a >
+(
+  item_name : &syn::Ident,
+  generics_impl : &syn::punctuated::Punctuated< syn::GenericParam, syn::token::Comma >,
+  generics_ty : &syn::punctuated::Punctuated< syn::GenericParam, syn::token::Comma >,
+  generics_where: &syn::punctuated::Punctuated< syn::WherePredicate, syn::token::Comma >,
+  field_types : impl macro_tools::IterTrait< 'a, &'a macro_tools::syn::Type >,
+)
+-> proc_macro2::TokenStream
+{
+
+  let params : Vec< proc_macro2::TokenStream > = ( 0..field_types.len() )
+  .map( | index |
+  {
+    let index = index.to_string().parse::< proc_macro2::TokenStream >().unwrap();
+    qt!( src.#index )
+  })
+  .collect();
+
+  let field_types : Vec< _ > = field_types.collect();
+
+  qt!
+  {
+    // impl StructWithManyFields
+    impl< #generics_impl > #item_name< #generics_ty >
+    where
+      #generics_where
+    {
+      #[ inline( always ) ]
+      // fn new( src : (i32, bool) ) -> Self
+      fn new( src : ( #( #field_types ),* ) ) -> Self
+      {
+        // StructWithManyFields( src.0, src.1 )
+        #item_name( #( #params ),* )
+      }
+    }
+  }
+}
+
+// xxx : qqq : implement
+// qqq : document, add example of generated code
+fn variant_generate
+(
+  item_name : &syn::Ident,
+  item_attrs : &ItemAttributes,
+  generics_impl : &syn::punctuated::Punctuated< syn::GenericParam, syn::token::Comma >,
+  generics_ty : &syn::punctuated::Punctuated< syn::GenericParam, syn::token::Comma >,
+  generics_where: &syn::punctuated::Punctuated< syn::WherePredicate, syn::token::Comma >,
+  variant : &syn::Variant,
+  original_input : &proc_macro::TokenStream,
+)
+-> Result< proc_macro2::TokenStream >
+{
+  let variant_name = &variant.ident;
+  let fields = &variant.fields;
+  let attrs = FieldAttributes::from_attrs( variant.attrs.iter() )?;
+
+  if !attrs.config.enabled.value( item_attrs.config.enabled.value( true ) )
+  {
+    return Ok( qt!{} )
+  }
+
+  if fields.len() <= 0
+  {
+    return Ok( qt!{} )
+  }
+
+  let ( args, use_src ) = if fields.len() == 1
+  {
+    let field = fields.iter().next().unwrap();
+    (
+      qt!{ #field },
+      qt!{ src },
+    )
+  }
+  else
+  {
+    let src_i = ( 0..fields.len() ).map( | e |
+    {
+      let i = syn::Index::from( e );
+      qt!{ src.#i, }
+    });
+    (
+      qt!{ #fields },
+      qt!{ #( #src_i )* },
+      // qt!{ src.0, src.1 },
+    )
+  };
+
+  // qqq : make `debug` working for all branches
+  if attrs.config.debug.value( false )
+  {
+    let debug = format!
+    (
+      r#"
+#[ automatically_derived ]
+impl< {0} > {item_name}< {1} >
+where
+  {2}
+{{
+  #[ inline ]
+  fn new( src : {args} ) -> Self
+  {{
+    Self::{variant_name}( {use_src} )
+  }}
+}}
+      "#,
+      format!( "{}", qt!{ #generics_impl } ),
+      format!( "{}", qt!{ #generics_ty } ),
+      format!( "{}", qt!{ #generics_where } ),
+    );
+    let about = format!
+    (
+r#"derive : New
+item : {item_name}
+field : {variant_name}"#,
+    );
+    diag::report_print( about, original_input, debug );
+  }
+
+  Ok
+  (
+    qt!
+    {
+      #[ automatically_derived ]
+      impl< #generics_impl > #item_name< #generics_ty >
+      where
+        #generics_where
+      {
+        #[ inline ]
+        fn new( src : #args ) -> Self
+        {
+          Self::#variant_name( #use_src )
+        }
+      }
+    }
+  )
+
+}
diff --git a/module/core/derive_tools_meta/src/lib.rs b/module/core/derive_tools_meta/src/lib.rs
index b2b6f19f6b..1a034690bc 100644
--- a/module/core/derive_tools_meta/src/lib.rs
+++ b/module/core/derive_tools_meta/src/lib.rs
@@ -19,19 +19,19 @@
 )]
 #[ cfg( feature = "enabled" ) ]
 mod derive;
-#[ cfg
-(
-  any
-  (
-    feature = "derive_as_mut",
-    feature = "derive_as_ref",
-    feature = "derive_deref",
-    feature = "derive_deref_mut",
-    feature = "derive_from",
-    feature = "derive_inner_from",
-    feature = "derive_variadic_from",
-  )
-)]
+// #[ cfg
+// (
+//   any
+//   (
+//     feature = "derive_as_mut",
+//     feature = "derive_as_ref",
+//     feature = "derive_deref",
+//     feature = "derive_deref_mut",
+//     feature = "derive_from",
+//     feature = "derive_inner_from",
+//     feature = "derive_variadic_from",
+//   )
+// )]
 // #[ cfg( feature = "enabled" ) ]
 // use derive::*;
 
@@ -91,6 +91,61 @@ pub fn from( input : proc_macro::TokenStream ) -> proc_macro::TokenStream
   }
 }
 
+///
+/// Provides an automatic `new` implementation for struct wrapping a single value.
+///
+/// This macro simplifies the conversion of an inner type to an outer struct type
+/// when the outer type is a simple wrapper around the inner type.
+///
+/// ## Example Usage
+///
+/// Instead of manually implementing `new` for `IsTransparent`:
+///
+/// ```rust
+/// pub struct IsTransparent( bool );
+///
+/// impl IsTransparent
+/// {
+///   #[ inline( always ) ]
+///   fn new( src : bool ) -> Self
+///   {
+///     Self( src )
+///   }
+/// }
+/// ```
+///
+/// Use `#[ derive( New ) ]` to automatically generate the implementation:
+///
+/// ```rust
+/// # use derive_tools_meta::*;
+/// #[ derive( New ) ]
+/// pub struct IsTransparent( bool );
+/// ```
+///
+/// The macro facilitates the conversion without additional boilerplate code.
+///
+
+#[ cfg( feature = "enabled" ) ]
+#[ cfg( feature = "derive_new" ) ]
+#[ proc_macro_derive
+(
+  New,
+  attributes
+  (
+    debug, // struct
+    new, // field
+  )
+)]
+pub fn new( input : proc_macro::TokenStream ) -> proc_macro::TokenStream
+{
+  let result = derive::new::new( input );
+  match result
+  {
+    Ok( stream ) => stream.into(),
+    Err( err ) => err.to_compile_error().into(),
+  }
+}
+
 // ///
 // /// Alias for derive `From`. Provides an automatic `From` implementation for struct wrapping a single value.
 // ///
@@ -128,7 +183,7 @@ pub fn from( input : proc_macro::TokenStream ) -> proc_macro::TokenStream
 // #[ cfg( feature = "enabled" ) ]
 // #[ cfg( feature = "derive_from" ) ]
 // #[ proc_macro_derive( FromInner, attributes( debug ) ) ]
-// pub fn from_inner( input : proc_macro::TokenStream ) -> proc_macro::TokenStream
+// pub fn from( input : proc_macro::TokenStream ) -> proc_macro::TokenStream
 // {
 //   let result = derive::from::from( input );
 //   match result
diff --git a/module/core/former/Readme.md b/module/core/former/Readme.md
index 68c270f3b8..05852dba11 100644
--- a/module/core/former/Readme.md
+++ b/module/core/former/Readme.md
@@ -371,7 +371,7 @@ The provided code snippet illustrates a basic use-case of the Former, which is u
     where Src : ::core::convert::Into< i32 >,
     {
       debug_assert!(self.storage.age.is_none());
-      self.storage.age = ::core::option::Option::Some(::core::convert::Into::into(src));
+      self.storage.age = ::core::option::Option::Some(::core::convert::Into::into( src ));
       self
     }
 
@@ -380,7 +380,7 @@ The provided code snippet illustrates a basic use-case of the Former, which is u
     where Src : ::core::convert::Into< String >,
     {
       debug_assert!(self.storage.username.is_none());
-      self.storage.username = ::core::option::Option::Some(::core::convert::Into::into(src));
+      self.storage.username = ::core::option::Option::Some(::core::convert::Into::into( src ));
       self
     }
 
@@ -389,7 +389,7 @@ The provided code snippet illustrates a basic use-case of the Former, which is u
     where Src : ::core::convert::Into< String >,
     {
       debug_assert!(self.storage.bio_optional.is_none());
-      self.storage.bio_optional = ::core::option::Option::Some(::core::convert::Into::into(src));
+      self.storage.bio_optional = ::core::option::Option::Some(::core::convert::Into::into( src ));
       self
     }
   }
diff --git a/module/core/former/examples/former_trivial_expaned.rs b/module/core/former/examples/former_trivial_expaned.rs
index 484f19262b..4968b11838 100644
--- a/module/core/former/examples/former_trivial_expaned.rs
+++ b/module/core/former/examples/former_trivial_expaned.rs
@@ -317,7 +317,7 @@ fn main()
     where Src : ::core::convert::Into< i32 >,
     {
       debug_assert!(self.storage.age.is_none());
-      self.storage.age = ::core::option::Option::Some(::core::convert::Into::into(src));
+      self.storage.age = ::core::option::Option::Some(::core::convert::Into::into( src ));
       self
     }
 
@@ -326,7 +326,7 @@ fn main()
     where Src : ::core::convert::Into< String >,
     {
       debug_assert!(self.storage.username.is_none());
-      self.storage.username = ::core::option::Option::Some(::core::convert::Into::into(src));
+      self.storage.username = ::core::option::Option::Some(::core::convert::Into::into( src ));
       self
     }
 
@@ -335,7 +335,7 @@ fn main()
     where Src : ::core::convert::Into< String >,
     {
       debug_assert!(self.storage.bio_optional.is_none());
-      self.storage.bio_optional = ::core::option::Option::Some(::core::convert::Into::into(src));
+      self.storage.bio_optional = ::core::option::Option::Some(::core::convert::Into::into( src ));
       self
     }
   }
diff --git a/module/core/macro_tools/src/diag.rs b/module/core/macro_tools/src/diag.rs
index 80cc16b563..10a7e9e0a5 100644
--- a/module/core/macro_tools/src/diag.rs
+++ b/module/core/macro_tools/src/diag.rs
@@ -229,13 +229,13 @@ pub( crate ) mod private
   #[ macro_export ]
   macro_rules! tree_print
   {
-    ( $src:expr ) =>
+    ( $src :expr ) =>
     {{
       let result = $crate::tree_diagnostics_str!( $src );
       println!( "{}", result );
       result
     }};
-    ( $( $src:expr ),+ $(,)? ) =>
+    ( $( $src :expr ),+ $(,)? ) =>
     {{
       $( $crate::tree_print!( $src ) );+
     }};
@@ -257,13 +257,13 @@ pub( crate ) mod private
   #[ macro_export ]
   macro_rules! code_print
   {
-    ( $src:expr ) =>
+    ( $src :expr ) =>
     {{
       let result = $crate::code_diagnostics_str!( $src );
       println!( "{}", result );
       result
     }};
-    ( $( $src:expr ),+ $(,)? ) =>
+    ( $( $src :expr ),+ $(,)? ) =>
     {{
       $( $crate::code_print!( $src ) );+
     }};
@@ -276,7 +276,7 @@ pub( crate ) mod private
   #[ macro_export ]
   macro_rules! tree_diagnostics_str
   {
-    ( $src:expr ) =>
+    ( $src :expr ) =>
     {{
       let src2 = &$src;
       format!( "{} : {} :\n{:#?}", stringify!( $src ), $crate::qt!{ #src2 }, $src )
@@ -290,7 +290,7 @@ pub( crate ) mod private
   #[ macro_export ]
   macro_rules! code_diagnostics_str
   {
-    ( $src:expr ) =>
+    ( $src :expr ) =>
     {{
       let src2 = &$src;
       format!( "{} : {}", stringify!( $src ), $crate::qt!{ #src2 } )
@@ -304,7 +304,7 @@ pub( crate ) mod private
   #[ macro_export ]
   macro_rules! code_to_str
   {
-    ( $src:expr ) =>
+    ( $src :expr ) =>
     {{
       let src2 = &$src;
       format!( "{}", $crate::qt!{ #src2 } )