From 669ca3e75745702c4c95a3d50200af0467db0acb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 14:03:20 +0900
Subject: [PATCH 01/28] define trait

---
 src/traits.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/traits.rs b/src/traits.rs
index 81f62760..aa1abdf8 100644
--- a/src/traits.rs
+++ b/src/traits.rs
@@ -10,6 +10,12 @@ use crate::targets::{Browsers, Targets};
 use crate::vendor_prefix::VendorPrefix;
 use cssparser::*;
 
+/// A trait for things that can be cloned with a new lifetime.
+pub trait IntoOwned {
+  /// Make lifetime of `self` `'static`.
+  fn into_owned(self) -> Self;
+}
+
 /// Trait for things that can be parsed from CSS syntax.
 pub trait Parse<'i>: Sized {
   /// Parse a value of this type using an existing parser.

From 308f1fa23b86ee5e5eec77a6c865eec663782ab4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 14:04:42 +0900
Subject: [PATCH 02/28] trivial impls

---
 src/traits.rs | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/traits.rs b/src/traits.rs
index aa1abdf8..4b0057bf 100644
--- a/src/traits.rs
+++ b/src/traits.rs
@@ -16,6 +16,22 @@ pub trait IntoOwned {
   fn into_owned(self) -> Self;
 }
 
+macro_rules! impl_into_owned {
+  ($t: ty) => {
+    impl<'i> IntoOwned for $t {
+      #[inline]
+      fn into_owned(self) -> Self {
+        self
+      }
+    }
+  };
+  ($($t:ty),*) => {
+    $(impl_into_owned!($t);)*
+  };
+}
+
+impl_into_owned!(bool, f32, f64, u8, u16, u32, u64, u128, i8, i16, i32, i64, i128, usize, isize);
+
 /// Trait for things that can be parsed from CSS syntax.
 pub trait Parse<'i>: Sized {
   /// Parse a value of this type using an existing parser.

From f705407304f6cefb6c1191bdae3bdcf4545305ed Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 14:07:43 +0900
Subject: [PATCH 03/28] Patch derive

---
 derive/src/into_owned.rs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/derive/src/into_owned.rs b/derive/src/into_owned.rs
index 4da1bc10..6c452c13 100644
--- a/derive/src/into_owned.rs
+++ b/derive/src/into_owned.rs
@@ -112,9 +112,10 @@ pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
   } else {
     let params = generics.type_params();
     quote! {
-      impl #impl_generics #self_name #ty_generics #where_clause {
+      impl #impl_generics lightningcss::traits::IntoOwned for #self_name #ty_generics #where_clause {
+        type Owned = #self_name<'staitc, #(#params),*>;
         /// Consumes the value and returns an owned clone.
-        pub fn into_owned<'x>(self) -> #self_name<'x, #(#params),*> {
+        fn into_owned(self) -> Self::Owned {
           #res
         }
       }

From bc2436e12c32262ed24620316bf53957d38f5b0f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 14:07:46 +0900
Subject: [PATCH 04/28] trait def

---
 src/traits.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/traits.rs b/src/traits.rs
index 4b0057bf..11329e1b 100644
--- a/src/traits.rs
+++ b/src/traits.rs
@@ -12,8 +12,10 @@ use cssparser::*;
 
 /// A trait for things that can be cloned with a new lifetime.
 pub trait IntoOwned {
+  type Owned: 'static;
+
   /// Make lifetime of `self` `'static`.
-  fn into_owned(self) -> Self;
+  fn into_owned(self) -> Self::Owned;
 }
 
 macro_rules! impl_into_owned {

From f49fe6996197d5434268092b1acfb883eaedbef4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 14:08:44 +0900
Subject: [PATCH 05/28] Typo

---
 derive/src/into_owned.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/derive/src/into_owned.rs b/derive/src/into_owned.rs
index 6c452c13..05c656bd 100644
--- a/derive/src/into_owned.rs
+++ b/derive/src/into_owned.rs
@@ -113,7 +113,7 @@ pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
     let params = generics.type_params();
     quote! {
       impl #impl_generics lightningcss::traits::IntoOwned for #self_name #ty_generics #where_clause {
-        type Owned = #self_name<'staitc, #(#params),*>;
+        type Owned = #self_name<'static, #(#params),*>;
         /// Consumes the value and returns an owned clone.
         fn into_owned(self) -> Self::Owned {
           #res

From 45eecc93b3f89d0b557b51de9c4ed8b7a9b0f675 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 14:11:38 +0900
Subject: [PATCH 06/28] fake module

---
 src/lib.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/lib.rs b/src/lib.rs
index 9d0338e5..ab0c8dbb 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -46,6 +46,10 @@ pub mod visitor;
 
 #[cfg(feature = "serde")]
 mod serialization;
+/// hack for derive
+mod lightningcss {
+  pub use crate::traits;
+}
 
 #[cfg(test)]
 mod tests {

From c8b13b438ecaada36d05a42d7b37d74e78f0ffaf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 14:18:09 +0900
Subject: [PATCH 07/28] use crate::lightningcss;

---
 src/declaration.rs               | 1 +
 src/error.rs                     | 1 +
 src/lib.rs                       | 1 +
 src/media_query.rs               | 2 +-
 src/properties/animation.rs      | 1 +
 src/properties/background.rs     | 1 +
 src/properties/border_image.rs   | 1 +
 src/properties/contain.rs        | 1 +
 src/properties/css_modules.rs    | 1 +
 src/properties/custom.rs         | 1 +
 src/properties/effects.rs        | 1 +
 src/properties/font.rs           | 1 +
 src/properties/grid.rs           | 1 +
 src/properties/list.rs           | 1 +
 src/properties/masking.rs        | 1 +
 src/properties/mod.rs            | 1 +
 src/properties/svg.rs            | 1 +
 src/properties/text.rs           | 1 +
 src/properties/transition.rs     | 1 +
 src/properties/ui.rs             | 1 +
 src/rules/container.rs           | 1 +
 src/rules/counter_style.rs       | 1 +
 src/rules/custom_media.rs        | 1 +
 src/rules/font_face.rs           | 1 +
 src/rules/font_palette_values.rs | 1 +
 src/rules/import.rs              | 1 +
 src/rules/keyframes.rs           | 1 +
 src/rules/layer.rs               | 1 +
 src/rules/namespace.rs           | 1 +
 src/rules/page.rs                | 1 +
 src/rules/property.rs            | 1 +
 src/rules/supports.rs            | 1 +
 src/rules/unknown.rs             | 1 +
 src/rules/viewport.rs            | 1 +
 src/stylesheet.rs                | 1 +
 src/values/ident.rs              | 1 +
 src/values/image.rs              | 1 +
 src/values/string.rs             | 1 +
 src/values/syntax.rs             | 1 +
 src/values/url.rs                | 1 +
 40 files changed, 40 insertions(+), 1 deletion(-)

diff --git a/src/declaration.rs b/src/declaration.rs
index dd2283f3..6d2140b8 100644
--- a/src/declaration.rs
+++ b/src/declaration.rs
@@ -5,6 +5,7 @@ use std::ops::Range;
 
 use crate::context::PropertyHandlerContext;
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::parser::ParserOptions;
 use crate::printer::Printer;
 use crate::properties::box_shadow::BoxShadowHandler;
diff --git a/src/error.rs b/src/error.rs
index 274a5cae..e1f5e3f4 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -1,5 +1,6 @@
 //! Error types.
 
+use crate::lightningcss;
 use crate::properties::custom::Token;
 use crate::rules::Location;
 use crate::values::string::CowArcStr;
diff --git a/src/lib.rs b/src/lib.rs
index ab0c8dbb..f6ef5176 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -46,6 +46,7 @@ pub mod visitor;
 
 #[cfg(feature = "serde")]
 mod serialization;
+
 /// hack for derive
 mod lightningcss {
   pub use crate::traits;
diff --git a/src/media_query.rs b/src/media_query.rs
index f6921c61..da0d6711 100644
--- a/src/media_query.rs
+++ b/src/media_query.rs
@@ -1,6 +1,6 @@
 //! Media queries.
-
 use crate::error::{ErrorWithLocation, MinifyError, MinifyErrorKind, ParserError, PrinterError};
+use crate::lightningcss;
 use crate::macros::enum_property;
 use crate::parser::starts_with_ignore_ascii_case;
 use crate::printer::Printer;
diff --git a/src/properties/animation.rs b/src/properties/animation.rs
index 169c2b9d..a5a8999d 100644
--- a/src/properties/animation.rs
+++ b/src/properties/animation.rs
@@ -3,6 +3,7 @@
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::macros::*;
 use crate::prefixes::Feature;
 use crate::printer::Printer;
diff --git a/src/properties/background.rs b/src/properties/background.rs
index 873247ff..9916696c 100644
--- a/src/properties/background.rs
+++ b/src/properties/background.rs
@@ -3,6 +3,7 @@
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::macros::*;
 use crate::prefixes::Feature;
 use crate::printer::Printer;
diff --git a/src/properties/border_image.rs b/src/properties/border_image.rs
index 973f0375..d789be22 100644
--- a/src/properties/border_image.rs
+++ b/src/properties/border_image.rs
@@ -3,6 +3,7 @@
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::prefixes::Feature;
 use crate::printer::Printer;
 use crate::properties::{Property, PropertyId, VendorPrefix};
diff --git a/src/properties/contain.rs b/src/properties/contain.rs
index 05fdc032..4d48332f 100644
--- a/src/properties/contain.rs
+++ b/src/properties/contain.rs
@@ -2,6 +2,7 @@
 
 #![allow(non_upper_case_globals)]
 
+use crate::lightningcss;
 use cssparser::*;
 use smallvec::SmallVec;
 
diff --git a/src/properties/css_modules.rs b/src/properties/css_modules.rs
index e4a21172..ab961d26 100644
--- a/src/properties/css_modules.rs
+++ b/src/properties/css_modules.rs
@@ -2,6 +2,7 @@
 
 use crate::dependencies::Location;
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::printer::Printer;
 use crate::traits::{Parse, ToCss};
 use crate::values::ident::{CustomIdent, CustomIdentList};
diff --git a/src/properties/custom.rs b/src/properties/custom.rs
index 42a2f3b9..fc569d9f 100644
--- a/src/properties/custom.rs
+++ b/src/properties/custom.rs
@@ -1,6 +1,7 @@
 //! CSS custom properties and unparsed token values.
 
 use crate::error::{ParserError, PrinterError, PrinterErrorKind};
+use crate::lightningcss;
 use crate::macros::enum_property;
 use crate::prefixes::Feature;
 use crate::printer::Printer;
diff --git a/src/properties/effects.rs b/src/properties/effects.rs
index 20b2ee2e..80940798 100644
--- a/src/properties/effects.rs
+++ b/src/properties/effects.rs
@@ -1,6 +1,7 @@
 //! CSS properties related to filters and effects.
 
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::printer::Printer;
 use crate::targets::{Browsers, Targets};
 use crate::traits::{FallbackValues, IsCompatible, Parse, ToCss, Zero};
diff --git a/src/properties/font.rs b/src/properties/font.rs
index 3a81486f..c782625a 100644
--- a/src/properties/font.rs
+++ b/src/properties/font.rs
@@ -7,6 +7,7 @@ use crate::compat::Feature;
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::macros::*;
 use crate::printer::Printer;
 use crate::targets::should_compile;
diff --git a/src/properties/grid.rs b/src/properties/grid.rs
index 6c783b85..18eb765b 100644
--- a/src/properties/grid.rs
+++ b/src/properties/grid.rs
@@ -5,6 +5,7 @@
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{Error, ErrorLocation, ParserError, PrinterError, PrinterErrorKind};
+use crate::lightningcss;
 use crate::macros::{define_shorthand, impl_shorthand};
 use crate::printer::Printer;
 use crate::properties::{Property, PropertyId};
diff --git a/src/properties/list.rs b/src/properties/list.rs
index b37bc0ab..1f05cef5 100644
--- a/src/properties/list.rs
+++ b/src/properties/list.rs
@@ -4,6 +4,7 @@ use super::{Property, PropertyId};
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::macros::{define_shorthand, enum_property, shorthand_handler, shorthand_property};
 use crate::printer::Printer;
 use crate::targets::{Browsers, Targets};
diff --git a/src/properties/masking.rs b/src/properties/masking.rs
index 5a91c56c..46829b73 100644
--- a/src/properties/masking.rs
+++ b/src/properties/masking.rs
@@ -6,6 +6,7 @@ use super::PropertyId;
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::macros::{define_list_shorthand, define_shorthand, enum_property, property_bitflags};
 use crate::prefixes::Feature;
 use crate::printer::Printer;
diff --git a/src/properties/mod.rs b/src/properties/mod.rs
index 9a060f32..a40688b4 100644
--- a/src/properties/mod.rs
+++ b/src/properties/mod.rs
@@ -122,6 +122,7 @@ pub mod ui;
 
 use crate::declaration::DeclarationBlock;
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::logical::{LogicalGroup, PropertyCategory};
 use crate::parser::starts_with_ignore_ascii_case;
 use crate::parser::ParserOptions;
diff --git a/src/properties/svg.rs b/src/properties/svg.rs
index aa471250..371ef808 100644
--- a/src/properties/svg.rs
+++ b/src/properties/svg.rs
@@ -1,6 +1,7 @@
 //! CSS properties used in SVG.
 
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::macros::enum_property;
 use crate::printer::Printer;
 use crate::targets::{Browsers, Targets};
diff --git a/src/properties/text.rs b/src/properties/text.rs
index 92cdae79..350d77fa 100644
--- a/src/properties/text.rs
+++ b/src/properties/text.rs
@@ -7,6 +7,7 @@ use crate::compat;
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::macros::{define_shorthand, enum_property};
 use crate::prefixes::Feature;
 use crate::printer::Printer;
diff --git a/src/properties/transition.rs b/src/properties/transition.rs
index fd296a64..bf7222f4 100644
--- a/src/properties/transition.rs
+++ b/src/properties/transition.rs
@@ -5,6 +5,7 @@ use crate::compat;
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::macros::define_list_shorthand;
 use crate::prefixes::Feature;
 use crate::printer::Printer;
diff --git a/src/properties/ui.rs b/src/properties/ui.rs
index 2fe83a04..831a99ff 100644
--- a/src/properties/ui.rs
+++ b/src/properties/ui.rs
@@ -2,6 +2,7 @@
 
 use crate::declaration::DeclarationBlock;
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::macros::{define_shorthand, enum_property, shorthand_property};
 use crate::printer::Printer;
 use crate::properties::{Property, PropertyId};
diff --git a/src/rules/container.rs b/src/rules/container.rs
index 7529930e..0273034d 100644
--- a/src/rules/container.rs
+++ b/src/rules/container.rs
@@ -5,6 +5,7 @@ use cssparser::*;
 use super::Location;
 use super::{CssRuleList, MinifyContext};
 use crate::error::{MinifyError, ParserError, PrinterError};
+use crate::lightningcss;
 use crate::media_query::{
   define_query_features, operation_to_css, parse_query_condition, to_css_with_parens_if_needed, FeatureToCss,
   MediaFeatureType, Operator, QueryCondition, QueryConditionFlags, QueryFeature, ValueType,
diff --git a/src/rules/counter_style.rs b/src/rules/counter_style.rs
index 50602807..d3b2c192 100644
--- a/src/rules/counter_style.rs
+++ b/src/rules/counter_style.rs
@@ -3,6 +3,7 @@
 use super::Location;
 use crate::declaration::DeclarationBlock;
 use crate::error::PrinterError;
+use crate::lightningcss;
 use crate::printer::Printer;
 use crate::traits::ToCss;
 use crate::values::ident::CustomIdent;
diff --git a/src/rules/custom_media.rs b/src/rules/custom_media.rs
index 322a1847..05940bac 100644
--- a/src/rules/custom_media.rs
+++ b/src/rules/custom_media.rs
@@ -2,6 +2,7 @@
 
 use super::Location;
 use crate::error::PrinterError;
+use crate::lightningcss;
 use crate::media_query::MediaList;
 use crate::printer::Printer;
 use crate::traits::ToCss;
diff --git a/src/rules/font_face.rs b/src/rules/font_face.rs
index df827e8f..b1202772 100644
--- a/src/rules/font_face.rs
+++ b/src/rules/font_face.rs
@@ -2,6 +2,7 @@
 
 use super::Location;
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::macros::enum_property;
 use crate::printer::Printer;
 use crate::properties::custom::CustomProperty;
diff --git a/src/rules/font_palette_values.rs b/src/rules/font_palette_values.rs
index 08ea5417..88c394a7 100644
--- a/src/rules/font_palette_values.rs
+++ b/src/rules/font_palette_values.rs
@@ -3,6 +3,7 @@
 use super::supports::SupportsRule;
 use super::{CssRule, CssRuleList, Location, MinifyContext};
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::printer::Printer;
 use crate::properties::custom::CustomProperty;
 use crate::properties::font::FontFamily;
diff --git a/src/rules/import.rs b/src/rules/import.rs
index 9329fe9f..dea09ace 100644
--- a/src/rules/import.rs
+++ b/src/rules/import.rs
@@ -5,6 +5,7 @@ use super::supports::SupportsCondition;
 use super::Location;
 use crate::dependencies::{Dependency, ImportDependency};
 use crate::error::PrinterError;
+use crate::lightningcss;
 use crate::media_query::MediaList;
 use crate::printer::Printer;
 use crate::traits::ToCss;
diff --git a/src/rules/keyframes.rs b/src/rules/keyframes.rs
index 8e11218e..4ae40fb3 100644
--- a/src/rules/keyframes.rs
+++ b/src/rules/keyframes.rs
@@ -6,6 +6,7 @@ use super::{CssRule, CssRuleList, Location};
 use crate::context::DeclarationContext;
 use crate::declaration::DeclarationBlock;
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::parser::ParserOptions;
 use crate::printer::Printer;
 use crate::properties::custom::{CustomProperty, UnparsedProperty};
diff --git a/src/rules/layer.rs b/src/rules/layer.rs
index eaa04c86..70933241 100644
--- a/src/rules/layer.rs
+++ b/src/rules/layer.rs
@@ -2,6 +2,7 @@
 
 use super::{CssRuleList, Location, MinifyContext};
 use crate::error::{MinifyError, ParserError, PrinterError};
+use crate::lightningcss;
 use crate::parser::DefaultAtRule;
 use crate::printer::Printer;
 use crate::traits::{Parse, ToCss};
diff --git a/src/rules/namespace.rs b/src/rules/namespace.rs
index f70cd6fb..2f807293 100644
--- a/src/rules/namespace.rs
+++ b/src/rules/namespace.rs
@@ -2,6 +2,7 @@
 
 use super::Location;
 use crate::error::PrinterError;
+use crate::lightningcss;
 use crate::printer::Printer;
 use crate::traits::ToCss;
 use crate::values::ident::Ident;
diff --git a/src/rules/page.rs b/src/rules/page.rs
index e3a03cae..f4aa94ce 100644
--- a/src/rules/page.rs
+++ b/src/rules/page.rs
@@ -3,6 +3,7 @@
 use super::Location;
 use crate::declaration::{parse_declaration, DeclarationBlock};
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::macros::enum_property;
 use crate::printer::Printer;
 use crate::stylesheet::ParserOptions;
diff --git a/src/rules/property.rs b/src/rules/property.rs
index 97d2e82b..87baaaee 100644
--- a/src/rules/property.rs
+++ b/src/rules/property.rs
@@ -1,6 +1,7 @@
 //! The `@property` rule.
 
 use super::Location;
+use crate::lightningcss;
 #[cfg(feature = "visitor")]
 use crate::visitor::Visit;
 use crate::{
diff --git a/src/rules/supports.rs b/src/rules/supports.rs
index f16a4f0c..0cf42e95 100644
--- a/src/rules/supports.rs
+++ b/src/rules/supports.rs
@@ -3,6 +3,7 @@
 use super::Location;
 use super::{CssRuleList, MinifyContext};
 use crate::error::{MinifyError, ParserError, PrinterError};
+use crate::lightningcss;
 use crate::parser::DefaultAtRule;
 use crate::printer::Printer;
 use crate::properties::PropertyId;
diff --git a/src/rules/unknown.rs b/src/rules/unknown.rs
index 492d4c52..c1822589 100644
--- a/src/rules/unknown.rs
+++ b/src/rules/unknown.rs
@@ -2,6 +2,7 @@
 
 use super::Location;
 use crate::error::PrinterError;
+use crate::lightningcss;
 use crate::printer::Printer;
 use crate::properties::custom::TokenList;
 use crate::traits::ToCss;
diff --git a/src/rules/viewport.rs b/src/rules/viewport.rs
index 531de878..21ff0043 100644
--- a/src/rules/viewport.rs
+++ b/src/rules/viewport.rs
@@ -3,6 +3,7 @@
 use super::Location;
 use crate::declaration::DeclarationBlock;
 use crate::error::PrinterError;
+use crate::lightningcss;
 use crate::printer::Printer;
 use crate::traits::ToCss;
 use crate::vendor_prefix::VendorPrefix;
diff --git a/src/stylesheet.rs b/src/stylesheet.rs
index ebd0a9f0..0ad3808f 100644
--- a/src/stylesheet.rs
+++ b/src/stylesheet.rs
@@ -8,6 +8,7 @@ use crate::css_modules::{CssModule, CssModuleExports, CssModuleReferences};
 use crate::declaration::{DeclarationBlock, DeclarationHandler};
 use crate::dependencies::Dependency;
 use crate::error::{Error, ErrorLocation, MinifyErrorKind, ParserError, PrinterError, PrinterErrorKind};
+use crate::lightningcss;
 use crate::parser::{DefaultAtRule, DefaultAtRuleParser, TopLevelRuleParser};
 use crate::printer::Printer;
 use crate::rules::{CssRule, CssRuleList, MinifyContext};
diff --git a/src/values/ident.rs b/src/values/ident.rs
index 5b775e98..ed0e718e 100644
--- a/src/values/ident.rs
+++ b/src/values/ident.rs
@@ -1,6 +1,7 @@
 //! CSS identifiers.
 
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::printer::Printer;
 use crate::properties::css_modules::Specifier;
 use crate::traits::{Parse, ParseWithOptions, ToCss};
diff --git a/src/values/image.rs b/src/values/image.rs
index 756b3d4c..becf6a1e 100644
--- a/src/values/image.rs
+++ b/src/values/image.rs
@@ -6,6 +6,7 @@ use super::resolution::Resolution;
 use crate::compat;
 use crate::dependencies::{Dependency, UrlDependency};
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::prefixes::{is_webkit_gradient, Feature};
 use crate::printer::Printer;
 use crate::targets::{Browsers, Targets};
diff --git a/src/values/string.rs b/src/values/string.rs
index b0cb5de3..78e7bb97 100644
--- a/src/values/string.rs
+++ b/src/values/string.rs
@@ -1,5 +1,6 @@
 //! Types used to represent strings.
 
+use crate::lightningcss;
 use crate::traits::{Parse, ToCss};
 #[cfg(feature = "visitor")]
 use crate::visitor::{Visit, VisitTypes, Visitor};
diff --git a/src/values/syntax.rs b/src/values/syntax.rs
index 94b8429e..662fd05c 100644
--- a/src/values/syntax.rs
+++ b/src/values/syntax.rs
@@ -3,6 +3,7 @@
 use super::ident::Ident;
 use super::number::{CSSInteger, CSSNumber};
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::printer::Printer;
 use crate::traits::{Parse, ToCss};
 use crate::values;
diff --git a/src/values/url.rs b/src/values/url.rs
index eaf37bfe..badb8166 100644
--- a/src/values/url.rs
+++ b/src/values/url.rs
@@ -2,6 +2,7 @@
 
 use crate::dependencies::{Dependency, Location, UrlDependency};
 use crate::error::{ParserError, PrinterError};
+use crate::lightningcss;
 use crate::printer::Printer;
 use crate::traits::{Parse, ToCss};
 use crate::values::string::CowArcStr;

From f7e27a704a7d97245d34cf60dc7f5050e8fd5c30 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 14:19:11 +0900
Subject: [PATCH 08/28] use trait

---
 derive/src/into_owned.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/derive/src/into_owned.rs b/derive/src/into_owned.rs
index 05c656bd..23ed00f7 100644
--- a/derive/src/into_owned.rs
+++ b/derive/src/into_owned.rs
@@ -116,6 +116,8 @@ pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
         type Owned = #self_name<'static, #(#params),*>;
         /// Consumes the value and returns an owned clone.
         fn into_owned(self) -> Self::Owned {
+          use lightningcss::traits::IntoOwned;
+
           #res
         }
       }

From 4c7254077f799382d5c1c57ea9bb6f2bbbf7b7ee Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 14:20:46 +0900
Subject: [PATCH 09/28] More

---
 src/values/string.rs | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/values/string.rs b/src/values/string.rs
index 78e7bb97..4368ccc5 100644
--- a/src/values/string.rs
+++ b/src/values/string.rs
@@ -1,7 +1,7 @@
 //! Types used to represent strings.
 
 use crate::lightningcss;
-use crate::traits::{Parse, ToCss};
+use crate::traits::{IntoOwned, Parse, ToCss};
 #[cfg(feature = "visitor")]
 use crate::visitor::{Visit, VisitTypes, Visitor};
 use cssparser::{serialize_string, CowRcStr};
@@ -130,9 +130,13 @@ impl<'a> CowArcStr<'a> {
       }
     }
   }
+}
+
+impl IntoOwned for CowArcStr<'_> {
+  type Owned = CowArcStr<'static>;
 
   /// Consumes the value and returns an owned clone.
-  pub fn into_owned<'x>(self) -> CowArcStr<'x> {
+  fn into_owned(self) -> Self::Owned {
     if self.borrowed_len_or_max != usize::MAX {
       CowArcStr::from(self.as_ref().to_owned())
     } else {

From bc87127ef07512ca97543c712b9adb7734a10e51 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 14:21:40 +0900
Subject: [PATCH 10/28] #[cfg(feature = "into_owned")]

---
 src/traits.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/traits.rs b/src/traits.rs
index 11329e1b..efe2904c 100644
--- a/src/traits.rs
+++ b/src/traits.rs
@@ -11,6 +11,7 @@ use crate::vendor_prefix::VendorPrefix;
 use cssparser::*;
 
 /// A trait for things that can be cloned with a new lifetime.
+#[cfg(feature = "into_owned")]
 pub trait IntoOwned {
   type Owned: 'static;
 

From a399e6c934adaa25116da44ce2b3d61b6fd3bd8d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 14:22:12 +0900
Subject: [PATCH 11/28] Fix trivial impls

---
 src/media_query.rs | 3 +++
 src/traits.rs      | 4 ++++
 2 files changed, 7 insertions(+)

diff --git a/src/media_query.rs b/src/media_query.rs
index da0d6711..16169eb9 100644
--- a/src/media_query.rs
+++ b/src/media_query.rs
@@ -1,5 +1,6 @@
 //! Media queries.
 use crate::error::{ErrorWithLocation, MinifyError, MinifyErrorKind, ParserError, PrinterError};
+#[cfg(feature = "into_owned")]
 use crate::lightningcss;
 use crate::macros::enum_property;
 use crate::parser::starts_with_ignore_ascii_case;
@@ -11,6 +12,8 @@ use crate::rules::custom_media::CustomMediaRule;
 use crate::rules::Location;
 use crate::stylesheet::ParserOptions;
 use crate::targets::{should_compile, Targets};
+#[cfg(feature = "into_owned")]
+use crate::traits::IntoOwned;
 use crate::traits::{Parse, ToCss};
 use crate::values::ident::{DashedIdent, Ident};
 use crate::values::number::{CSSInteger, CSSNumber};
diff --git a/src/traits.rs b/src/traits.rs
index efe2904c..96091cce 100644
--- a/src/traits.rs
+++ b/src/traits.rs
@@ -19,9 +19,12 @@ pub trait IntoOwned {
   fn into_owned(self) -> Self::Owned;
 }
 
+#[cfg(feature = "into_owned")]
 macro_rules! impl_into_owned {
   ($t: ty) => {
     impl<'i> IntoOwned for $t {
+      type Owned = Self;
+
       #[inline]
       fn into_owned(self) -> Self {
         self
@@ -33,6 +36,7 @@ macro_rules! impl_into_owned {
   };
 }
 
+#[cfg(feature = "into_owned")]
 impl_into_owned!(bool, f32, f64, u8, u16, u32, u64, u128, i8, i16, i32, i64, i128, usize, isize);
 
 /// Trait for things that can be parsed from CSS syntax.

From e7346e5d159d8d01e45767d973eb851b4cc77ba3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 14:23:10 +0900
Subject: [PATCH 12/28] use

---
 src/properties/mod.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/properties/mod.rs b/src/properties/mod.rs
index a40688b4..3820d774 100644
--- a/src/properties/mod.rs
+++ b/src/properties/mod.rs
@@ -129,6 +129,8 @@ use crate::parser::ParserOptions;
 use crate::prefixes::Feature;
 use crate::printer::{Printer, PrinterOptions};
 use crate::targets::Targets;
+#[cfg(feature = "into_owned")]
+use crate::traits::IntoOwned;
 use crate::traits::{Parse, ParseWithOptions, Shorthand, ToCss};
 use crate::values::number::{CSSInteger, CSSNumber};
 use crate::values::string::CowArcStr;

From 5fcd76b2822cb7c94aa7d6aec8ece3a1d206530c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 14:27:44 +0900
Subject: [PATCH 13/28] generic bound for type parameters

---
 derive/src/into_owned.rs | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/derive/src/into_owned.rs b/derive/src/into_owned.rs
index 23ed00f7..50881707 100644
--- a/derive/src/into_owned.rs
+++ b/derive/src/into_owned.rs
@@ -2,15 +2,15 @@ use proc_macro::{self, TokenStream};
 use proc_macro2::Span;
 use quote::quote;
 use syn::{
-  parse_macro_input, Data, DataEnum, DeriveInput, Field, Fields, GenericArgument, Ident, Member, PathArguments,
-  Type,
+  parse_macro_input, parse_quote, Data, DataEnum, DeriveInput, Field, Fields, GenericArgument, Ident, Member,
+  PathArguments, Type,
 };
 
 pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
   let DeriveInput {
     ident: self_name,
     data,
-    generics,
+    mut generics,
     ..
   } = parse_macro_input!(input);
 
@@ -105,6 +105,19 @@ pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
     }
   };
 
+  // Add generic bounds for all type parameters.
+  let mut type_param_names = vec![];
+
+  for ty in generics.type_params() {
+    type_param_names.push(ty.ident.clone());
+  }
+
+  for type_param in type_param_names {
+    generics.make_where_clause().predicates.push_value(parse_quote! {
+      #type_param: lightningcss::traits::IntoOwned
+    })
+  }
+
   let (impl_generics, ty_generics, where_clause) = generics.split_for_impl();
 
   let into_owned = if generics.lifetimes().next().is_none() {

From 84ec65eb0b2fd26652a70c90c9dedc163fe299b8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 14:28:34 +0900
Subject: [PATCH 14/28] Add `'static`

---
 derive/src/into_owned.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/derive/src/into_owned.rs b/derive/src/into_owned.rs
index 50881707..bedf9ec9 100644
--- a/derive/src/into_owned.rs
+++ b/derive/src/into_owned.rs
@@ -114,7 +114,7 @@ pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
 
   for type_param in type_param_names {
     generics.make_where_clause().predicates.push_value(parse_quote! {
-      #type_param: lightningcss::traits::IntoOwned
+      #type_param: 'static + lightningcss::traits::IntoOwned
     })
   }
 

From ad3c09f03e57f55899c695938e7eb66def50225e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 14:29:14 +0900
Subject: [PATCH 15/28] More import

---
 src/error.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/error.rs b/src/error.rs
index e1f5e3f4..9c21bd02 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -3,6 +3,8 @@
 use crate::lightningcss;
 use crate::properties::custom::Token;
 use crate::rules::Location;
+#[cfg(feature = "into_owned")]
+use crate::traits::IntoOwned;
 use crate::values::string::CowArcStr;
 use cssparser::{BasicParseErrorKind, ParseError, ParseErrorKind};
 use parcel_selectors::parser::SelectorParseErrorKind;

From 69ea0f6cfafbc04ed9ac07d0fc9f76c0eabbe24b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 14:34:42 +0900
Subject: [PATCH 16/28] Patch derive to support more

---
 derive/src/into_owned.rs | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/derive/src/into_owned.rs b/derive/src/into_owned.rs
index bedf9ec9..b131e418 100644
--- a/derive/src/into_owned.rs
+++ b/derive/src/into_owned.rs
@@ -121,7 +121,16 @@ pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
   let (impl_generics, ty_generics, where_clause) = generics.split_for_impl();
 
   let into_owned = if generics.lifetimes().next().is_none() {
-    panic!("can't derive IntoOwned on a type without any lifetimes")
+    quote! {
+      impl #impl_generics lightningcss::traits::IntoOwned for #self_name #ty_generics #where_clause {
+        type Owned = Self;
+
+        #[inline]
+        fn into_owned(self) -> Self {
+          self
+        }
+      }
+    }
   } else {
     let params = generics.type_params();
     quote! {

From 3e672546fdd67dae63cfeb00fa83b693ea293663 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 14:34:48 +0900
Subject: [PATCH 17/28] derive

---
 src/media_query.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/media_query.rs b/src/media_query.rs
index 16169eb9..61358350 100644
--- a/src/media_query.rs
+++ b/src/media_query.rs
@@ -1260,6 +1260,7 @@ macro_rules! define_query_features {
 pub(crate) use define_query_features;
 
 define_query_features! {
+  #[cfg_attr(feature = "into_owned", derive(lightningcss_derive::IntoOwned))]
   /// A media query feature identifier.
   pub enum MediaFeatureId {
     /// The [width](https://w3c.github.io/csswg-drafts/mediaqueries-5/#width) media feature.

From abaddb600775364b0ecbea279b36fa2e5e23b19c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 14:35:27 +0900
Subject: [PATCH 18/28] more derive

---
 src/rules/container.rs | 1 +
 src/traits.rs          | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/rules/container.rs b/src/rules/container.rs
index 0273034d..670527e4 100644
--- a/src/rules/container.rs
+++ b/src/rules/container.rs
@@ -75,6 +75,7 @@ pub type ContainerSizeFeature<'i> = QueryFeature<'i, ContainerSizeFeatureId>;
 
 define_query_features! {
   /// A container query size feature identifier.
+  #[cfg_attr(feature = "into_owned", derive(lightningcss_derive::IntoOwned))]
   pub enum ContainerSizeFeatureId {
     /// The [width](https://w3c.github.io/csswg-drafts/css-contain-3/#width) size container feature.
     "width": Width = Length,
diff --git a/src/traits.rs b/src/traits.rs
index 96091cce..96434a97 100644
--- a/src/traits.rs
+++ b/src/traits.rs
@@ -22,7 +22,7 @@ pub trait IntoOwned {
 #[cfg(feature = "into_owned")]
 macro_rules! impl_into_owned {
   ($t: ty) => {
-    impl<'i> IntoOwned for $t {
+    impl IntoOwned for $t {
       type Owned = Self;
 
       #[inline]

From c1fa878736c7aab4083fcd6c0c74bab61e58c651 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 15:05:16 +0900
Subject: [PATCH 19/28] `'any` from derive

---
 derive/src/into_owned.rs | 24 +++++++++++++++++++-----
 1 file changed, 19 insertions(+), 5 deletions(-)

diff --git a/derive/src/into_owned.rs b/derive/src/into_owned.rs
index b131e418..b3ace102 100644
--- a/derive/src/into_owned.rs
+++ b/derive/src/into_owned.rs
@@ -2,8 +2,8 @@ use proc_macro::{self, TokenStream};
 use proc_macro2::Span;
 use quote::quote;
 use syn::{
-  parse_macro_input, parse_quote, Data, DataEnum, DeriveInput, Field, Fields, GenericArgument, Ident, Member,
-  PathArguments, Type,
+  parse_macro_input, parse_quote, Data, DataEnum, DeriveInput, Field, Fields, GenericArgument, Generics, Ident,
+  Member, PathArguments, Type,
 };
 
 pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
@@ -118,11 +118,25 @@ pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
     })
   }
 
+  // Prepend `'any` to generics
+  generics.params.insert(
+    0,
+    syn::GenericParam::Lifetime(syn::LifetimeDef {
+      attrs: Default::default(),
+      lifetime: syn::Lifetime {
+        apostrophe: Span::call_site(),
+        ident: Ident::new("any", Span::call_site()),
+      },
+      colon_token: None,
+      bounds: Default::default(),
+    }),
+  );
+
   let (impl_generics, ty_generics, where_clause) = generics.split_for_impl();
 
   let into_owned = if generics.lifetimes().next().is_none() {
     quote! {
-      impl #impl_generics lightningcss::traits::IntoOwned for #self_name #ty_generics #where_clause {
+      impl #impl_generics lightningcss::traits::IntoOwned<'any> for #self_name #ty_generics #where_clause {
         type Owned = Self;
 
         #[inline]
@@ -134,8 +148,8 @@ pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
   } else {
     let params = generics.type_params();
     quote! {
-      impl #impl_generics lightningcss::traits::IntoOwned for #self_name #ty_generics #where_clause {
-        type Owned = #self_name<'static, #(#params),*>;
+      impl #impl_generics lightningcss::traits::IntoOwned<'any> for #self_name #ty_generics #where_clause {
+        type Owned = #self_name<'any, #(#params),*>;
         /// Consumes the value and returns an owned clone.
         fn into_owned(self) -> Self::Owned {
           use lightningcss::traits::IntoOwned;

From 209df83541fc6df544bba6563532fc006052425d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 15:07:54 +0900
Subject: [PATCH 20/28] Rename existing type param

---
 derive/src/into_owned.rs | 32 ++++++++++++++++++++------------
 src/traits.rs            |  8 +++++---
 2 files changed, 25 insertions(+), 15 deletions(-)

diff --git a/derive/src/into_owned.rs b/derive/src/into_owned.rs
index b3ace102..61ceb828 100644
--- a/derive/src/into_owned.rs
+++ b/derive/src/into_owned.rs
@@ -1,3 +1,5 @@
+use std::f32::consts::E;
+
 use proc_macro::{self, TokenStream};
 use proc_macro2::Span;
 use quote::quote;
@@ -119,18 +121,24 @@ pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
   }
 
   // Prepend `'any` to generics
-  generics.params.insert(
-    0,
-    syn::GenericParam::Lifetime(syn::LifetimeDef {
-      attrs: Default::default(),
-      lifetime: syn::Lifetime {
-        apostrophe: Span::call_site(),
-        ident: Ident::new("any", Span::call_site()),
-      },
-      colon_token: None,
-      bounds: Default::default(),
-    }),
-  );
+  let any = syn::GenericParam::Lifetime(syn::LifetimeDef {
+    attrs: Default::default(),
+    lifetime: syn::Lifetime {
+      apostrophe: Span::call_site(),
+      ident: Ident::new("any", Span::call_site()),
+    },
+    colon_token: None,
+    bounds: Default::default(),
+  });
+  if generics
+    .params
+    .first()
+    .map_or(true, |v| !matches!(v, syn::GenericParam::Lifetime(..)))
+  {
+    generics.params.insert(0, any.clone());
+  } else {
+    generics.params[0] = any;
+  }
 
   let (impl_generics, ty_generics, where_clause) = generics.split_for_impl();
 
diff --git a/src/traits.rs b/src/traits.rs
index 96434a97..469a7f1d 100644
--- a/src/traits.rs
+++ b/src/traits.rs
@@ -11,9 +11,11 @@ use crate::vendor_prefix::VendorPrefix;
 use cssparser::*;
 
 /// A trait for things that can be cloned with a new lifetime.
+///
+/// `'any` lifeitme means the output should have `'static` lifetime.
 #[cfg(feature = "into_owned")]
-pub trait IntoOwned {
-  type Owned: 'static;
+pub trait IntoOwned<'any> {
+  type Owned: 'any;
 
   /// Make lifetime of `self` `'static`.
   fn into_owned(self) -> Self::Owned;
@@ -22,7 +24,7 @@ pub trait IntoOwned {
 #[cfg(feature = "into_owned")]
 macro_rules! impl_into_owned {
   ($t: ty) => {
-    impl IntoOwned for $t {
+    impl<'a> IntoOwned<'a> for $t {
       type Owned = Self;
 
       #[inline]

From de064a2dffb200893ff6b85d64ba7232e2c43cc5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 15:08:48 +0900
Subject: [PATCH 21/28] for <'aa>

---
 derive/src/into_owned.rs | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/derive/src/into_owned.rs b/derive/src/into_owned.rs
index 61ceb828..510781d6 100644
--- a/derive/src/into_owned.rs
+++ b/derive/src/into_owned.rs
@@ -1,11 +1,9 @@
-use std::f32::consts::E;
-
 use proc_macro::{self, TokenStream};
 use proc_macro2::Span;
 use quote::quote;
 use syn::{
-  parse_macro_input, parse_quote, Data, DataEnum, DeriveInput, Field, Fields, GenericArgument, Generics, Ident,
-  Member, PathArguments, Type,
+  parse_macro_input, parse_quote, Data, DataEnum, DeriveInput, Field, Fields, GenericArgument, Ident, Member,
+  PathArguments, Type,
 };
 
 pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
@@ -116,7 +114,7 @@ pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
 
   for type_param in type_param_names {
     generics.make_where_clause().predicates.push_value(parse_quote! {
-      #type_param: 'static + lightningcss::traits::IntoOwned
+      #type_param: 'static + for<'aa> lightningcss::traits::IntoOwned<'aa>
     })
   }
 

From abcd3b7e264c656e02938f0caacceeb0f3e264e0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 15:10:46 +0900
Subject: [PATCH 22/28] done?

---
 derive/src/into_owned.rs | 15 ++++++++-------
 src/values/string.rs     |  4 ++--
 2 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/derive/src/into_owned.rs b/derive/src/into_owned.rs
index 510781d6..5eb1eac3 100644
--- a/derive/src/into_owned.rs
+++ b/derive/src/into_owned.rs
@@ -118,6 +118,11 @@ pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
     })
   }
 
+  let has_lifetime = generics
+    .params
+    .first()
+    .map_or(false, |v| matches!(v, syn::GenericParam::Lifetime(..)));
+
   // Prepend `'any` to generics
   let any = syn::GenericParam::Lifetime(syn::LifetimeDef {
     attrs: Default::default(),
@@ -128,11 +133,7 @@ pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
     colon_token: None,
     bounds: Default::default(),
   });
-  if generics
-    .params
-    .first()
-    .map_or(true, |v| !matches!(v, syn::GenericParam::Lifetime(..)))
-  {
+  if !has_lifetime {
     generics.params.insert(0, any.clone());
   } else {
     generics.params[0] = any;
@@ -140,9 +141,9 @@ pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
 
   let (impl_generics, ty_generics, where_clause) = generics.split_for_impl();
 
-  let into_owned = if generics.lifetimes().next().is_none() {
+  let into_owned = if !has_lifetime {
     quote! {
-      impl #impl_generics lightningcss::traits::IntoOwned<'any> for #self_name #ty_generics #where_clause {
+      impl #impl_generics lightningcss::traits::IntoOwned<'any> for #self_name #where_clause {
         type Owned = Self;
 
         #[inline]
diff --git a/src/values/string.rs b/src/values/string.rs
index 4368ccc5..0cce3571 100644
--- a/src/values/string.rs
+++ b/src/values/string.rs
@@ -132,8 +132,8 @@ impl<'a> CowArcStr<'a> {
   }
 }
 
-impl IntoOwned for CowArcStr<'_> {
-  type Owned = CowArcStr<'static>;
+impl<'any> IntoOwned<'any> for CowArcStr<'_> {
+  type Owned = CowArcStr<'any>;
 
   /// Consumes the value and returns an owned clone.
   fn into_owned(self) -> Self::Owned {

From 17a0db56035427d72260d291c92377b102ce5dda Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 15:14:05 +0900
Subject: [PATCH 23/28] fix derive

---
 derive/src/into_owned.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/derive/src/into_owned.rs b/derive/src/into_owned.rs
index 5eb1eac3..1e923672 100644
--- a/derive/src/into_owned.rs
+++ b/derive/src/into_owned.rs
@@ -105,6 +105,8 @@ pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
     }
   };
 
+  let orig_generics = generics.clone();
+
   // Add generic bounds for all type parameters.
   let mut type_param_names = vec![];
 
@@ -142,8 +144,9 @@ pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
   let (impl_generics, ty_generics, where_clause) = generics.split_for_impl();
 
   let into_owned = if !has_lifetime {
+    let (_, ty_generics, _) = orig_generics.split_for_impl();
     quote! {
-      impl #impl_generics lightningcss::traits::IntoOwned<'any> for #self_name #where_clause {
+      impl #impl_generics lightningcss::traits::IntoOwned<'any> for #self_name #ty_generics #where_clause {
         type Owned = Self;
 
         #[inline]

From b7fc5afa0ead03cee1b47602dc5cea1f433ccde0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 15:22:33 +0900
Subject: [PATCH 24/28] done

---
 derive/src/into_owned.rs | 10 +++-------
 src/traits.rs            |  1 +
 2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/derive/src/into_owned.rs b/derive/src/into_owned.rs
index 1e923672..b686e438 100644
--- a/derive/src/into_owned.rs
+++ b/derive/src/into_owned.rs
@@ -135,16 +135,12 @@ pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
     colon_token: None,
     bounds: Default::default(),
   });
-  if !has_lifetime {
-    generics.params.insert(0, any.clone());
-  } else {
-    generics.params[0] = any;
-  }
+  generics.params.insert(0, any.clone());
 
-  let (impl_generics, ty_generics, where_clause) = generics.split_for_impl();
+  let (impl_generics, _, where_clause) = generics.split_for_impl();
+  let (_, ty_generics, _) = orig_generics.split_for_impl();
 
   let into_owned = if !has_lifetime {
-    let (_, ty_generics, _) = orig_generics.split_for_impl();
     quote! {
       impl #impl_generics lightningcss::traits::IntoOwned<'any> for #self_name #ty_generics #where_clause {
         type Owned = Self;
diff --git a/src/traits.rs b/src/traits.rs
index 469a7f1d..d3cac881 100644
--- a/src/traits.rs
+++ b/src/traits.rs
@@ -15,6 +15,7 @@ use cssparser::*;
 /// `'any` lifeitme means the output should have `'static` lifetime.
 #[cfg(feature = "into_owned")]
 pub trait IntoOwned<'any> {
+  /// A variant of `Self` with a new lifetime.
   type Owned: 'any;
 
   /// Make lifetime of `self` `'static`.

From 5dbb9357a09958894d9ad2e328297e739c6b0072 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 15:23:55 +0900
Subject: [PATCH 25/28] fix

---
 node/src/transformer.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/node/src/transformer.rs b/node/src/transformer.rs
index 3480d2dd..6873b502 100644
--- a/node/src/transformer.rs
+++ b/node/src/transformer.rs
@@ -3,6 +3,7 @@ use std::{
   ops::{Index, IndexMut},
 };
 
+use lightningcss::traits::IntoOwned;
 use lightningcss::{
   media_query::MediaFeatureValue,
   properties::{

From 03476dccd11af4b2826f1772417230d4d3175a7c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 15:29:54 +0900
Subject: [PATCH 26/28] Add `use`

---
 src/properties/custom.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/properties/custom.rs b/src/properties/custom.rs
index fc569d9f..c6600488 100644
--- a/src/properties/custom.rs
+++ b/src/properties/custom.rs
@@ -181,6 +181,7 @@ impl<'i> UnparsedProperty<'i> {
   ) -> Result<super::Property<'x>, ()> {
     use super::Property;
     use crate::stylesheet::PrinterOptions;
+    use crate::traits::IntoOwned;
 
     // Substitute variables in the token list.
     self.value.substitute_variables(vars);

From 8f7ada0156f0d0858a38e5d27c269afb1adc1877 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4=20=28Donny=29?=
 <kdy1997.dev@gmail.com>
Date: Fri, 6 Oct 2023 15:51:55 +0900
Subject: [PATCH 27/28] doctest seems buggy

---
 src/declaration.rs               | 1 +
 src/error.rs                     | 1 +
 src/media_query.rs               | 1 +
 src/properties/animation.rs      | 1 +
 src/properties/background.rs     | 1 +
 src/properties/border_image.rs   | 1 +
 src/properties/contain.rs        | 1 +
 src/properties/css_modules.rs    | 1 +
 src/properties/custom.rs         | 1 +
 src/properties/effects.rs        | 1 +
 src/properties/font.rs           | 1 +
 src/properties/grid.rs           | 1 +
 src/properties/list.rs           | 1 +
 src/properties/masking.rs        | 1 +
 src/properties/mod.rs            | 1 +
 src/properties/svg.rs            | 1 +
 src/properties/text.rs           | 1 +
 src/properties/transition.rs     | 1 +
 src/properties/ui.rs             | 1 +
 src/rules/container.rs           | 1 +
 src/rules/counter_style.rs       | 1 +
 src/rules/custom_media.rs        | 1 +
 src/rules/font_face.rs           | 1 +
 src/rules/font_palette_values.rs | 1 +
 src/rules/import.rs              | 1 +
 src/rules/keyframes.rs           | 1 +
 src/rules/layer.rs               | 1 +
 src/rules/namespace.rs           | 1 +
 src/rules/page.rs                | 1 +
 src/rules/property.rs            | 1 +
 src/rules/supports.rs            | 1 +
 src/rules/unknown.rs             | 1 +
 src/rules/viewport.rs            | 1 +
 src/stylesheet.rs                | 1 +
 src/values/ident.rs              | 1 +
 src/values/image.rs              | 1 +
 src/values/string.rs             | 1 +
 src/values/syntax.rs             | 1 +
 src/values/url.rs                | 1 +
 39 files changed, 39 insertions(+)

diff --git a/src/declaration.rs b/src/declaration.rs
index 6d2140b8..62605e5f 100644
--- a/src/declaration.rs
+++ b/src/declaration.rs
@@ -5,6 +5,7 @@ use std::ops::Range;
 
 use crate::context::PropertyHandlerContext;
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::parser::ParserOptions;
 use crate::printer::Printer;
diff --git a/src/error.rs b/src/error.rs
index 9c21bd02..73c2e37a 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -1,5 +1,6 @@
 //! Error types.
 
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::properties::custom::Token;
 use crate::rules::Location;
diff --git a/src/media_query.rs b/src/media_query.rs
index 61358350..83a48870 100644
--- a/src/media_query.rs
+++ b/src/media_query.rs
@@ -1,6 +1,7 @@
 //! Media queries.
 use crate::error::{ErrorWithLocation, MinifyError, MinifyErrorKind, ParserError, PrinterError};
 #[cfg(feature = "into_owned")]
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::macros::enum_property;
 use crate::parser::starts_with_ignore_ascii_case;
diff --git a/src/properties/animation.rs b/src/properties/animation.rs
index a5a8999d..e36ed53e 100644
--- a/src/properties/animation.rs
+++ b/src/properties/animation.rs
@@ -3,6 +3,7 @@
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::macros::*;
 use crate::prefixes::Feature;
diff --git a/src/properties/background.rs b/src/properties/background.rs
index 9916696c..47224093 100644
--- a/src/properties/background.rs
+++ b/src/properties/background.rs
@@ -3,6 +3,7 @@
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::macros::*;
 use crate::prefixes::Feature;
diff --git a/src/properties/border_image.rs b/src/properties/border_image.rs
index d789be22..39834525 100644
--- a/src/properties/border_image.rs
+++ b/src/properties/border_image.rs
@@ -3,6 +3,7 @@
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::prefixes::Feature;
 use crate::printer::Printer;
diff --git a/src/properties/contain.rs b/src/properties/contain.rs
index 4d48332f..e43c76b3 100644
--- a/src/properties/contain.rs
+++ b/src/properties/contain.rs
@@ -2,6 +2,7 @@
 
 #![allow(non_upper_case_globals)]
 
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use cssparser::*;
 use smallvec::SmallVec;
diff --git a/src/properties/css_modules.rs b/src/properties/css_modules.rs
index ab961d26..a8cd752b 100644
--- a/src/properties/css_modules.rs
+++ b/src/properties/css_modules.rs
@@ -2,6 +2,7 @@
 
 use crate::dependencies::Location;
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::printer::Printer;
 use crate::traits::{Parse, ToCss};
diff --git a/src/properties/custom.rs b/src/properties/custom.rs
index c6600488..447adbbf 100644
--- a/src/properties/custom.rs
+++ b/src/properties/custom.rs
@@ -1,6 +1,7 @@
 //! CSS custom properties and unparsed token values.
 
 use crate::error::{ParserError, PrinterError, PrinterErrorKind};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::macros::enum_property;
 use crate::prefixes::Feature;
diff --git a/src/properties/effects.rs b/src/properties/effects.rs
index 80940798..f0cc0f1b 100644
--- a/src/properties/effects.rs
+++ b/src/properties/effects.rs
@@ -1,6 +1,7 @@
 //! CSS properties related to filters and effects.
 
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::printer::Printer;
 use crate::targets::{Browsers, Targets};
diff --git a/src/properties/font.rs b/src/properties/font.rs
index c782625a..171ca063 100644
--- a/src/properties/font.rs
+++ b/src/properties/font.rs
@@ -7,6 +7,7 @@ use crate::compat::Feature;
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::macros::*;
 use crate::printer::Printer;
diff --git a/src/properties/grid.rs b/src/properties/grid.rs
index 18eb765b..41155a3c 100644
--- a/src/properties/grid.rs
+++ b/src/properties/grid.rs
@@ -5,6 +5,7 @@
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{Error, ErrorLocation, ParserError, PrinterError, PrinterErrorKind};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::macros::{define_shorthand, impl_shorthand};
 use crate::printer::Printer;
diff --git a/src/properties/list.rs b/src/properties/list.rs
index 1f05cef5..82a13cb9 100644
--- a/src/properties/list.rs
+++ b/src/properties/list.rs
@@ -4,6 +4,7 @@ use super::{Property, PropertyId};
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::macros::{define_shorthand, enum_property, shorthand_handler, shorthand_property};
 use crate::printer::Printer;
diff --git a/src/properties/masking.rs b/src/properties/masking.rs
index 46829b73..84a77412 100644
--- a/src/properties/masking.rs
+++ b/src/properties/masking.rs
@@ -6,6 +6,7 @@ use super::PropertyId;
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::macros::{define_list_shorthand, define_shorthand, enum_property, property_bitflags};
 use crate::prefixes::Feature;
diff --git a/src/properties/mod.rs b/src/properties/mod.rs
index 3820d774..dc81427e 100644
--- a/src/properties/mod.rs
+++ b/src/properties/mod.rs
@@ -122,6 +122,7 @@ pub mod ui;
 
 use crate::declaration::DeclarationBlock;
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::logical::{LogicalGroup, PropertyCategory};
 use crate::parser::starts_with_ignore_ascii_case;
diff --git a/src/properties/svg.rs b/src/properties/svg.rs
index 371ef808..e2309096 100644
--- a/src/properties/svg.rs
+++ b/src/properties/svg.rs
@@ -1,6 +1,7 @@
 //! CSS properties used in SVG.
 
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::macros::enum_property;
 use crate::printer::Printer;
diff --git a/src/properties/text.rs b/src/properties/text.rs
index 350d77fa..187a84d6 100644
--- a/src/properties/text.rs
+++ b/src/properties/text.rs
@@ -7,6 +7,7 @@ use crate::compat;
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::macros::{define_shorthand, enum_property};
 use crate::prefixes::Feature;
diff --git a/src/properties/transition.rs b/src/properties/transition.rs
index bf7222f4..1a2acdab 100644
--- a/src/properties/transition.rs
+++ b/src/properties/transition.rs
@@ -5,6 +5,7 @@ use crate::compat;
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::macros::define_list_shorthand;
 use crate::prefixes::Feature;
diff --git a/src/properties/ui.rs b/src/properties/ui.rs
index 831a99ff..91e84e9d 100644
--- a/src/properties/ui.rs
+++ b/src/properties/ui.rs
@@ -2,6 +2,7 @@
 
 use crate::declaration::DeclarationBlock;
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::macros::{define_shorthand, enum_property, shorthand_property};
 use crate::printer::Printer;
diff --git a/src/rules/container.rs b/src/rules/container.rs
index 670527e4..a858df9b 100644
--- a/src/rules/container.rs
+++ b/src/rules/container.rs
@@ -5,6 +5,7 @@ use cssparser::*;
 use super::Location;
 use super::{CssRuleList, MinifyContext};
 use crate::error::{MinifyError, ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::media_query::{
   define_query_features, operation_to_css, parse_query_condition, to_css_with_parens_if_needed, FeatureToCss,
diff --git a/src/rules/counter_style.rs b/src/rules/counter_style.rs
index d3b2c192..7674ba6b 100644
--- a/src/rules/counter_style.rs
+++ b/src/rules/counter_style.rs
@@ -3,6 +3,7 @@
 use super::Location;
 use crate::declaration::DeclarationBlock;
 use crate::error::PrinterError;
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::printer::Printer;
 use crate::traits::ToCss;
diff --git a/src/rules/custom_media.rs b/src/rules/custom_media.rs
index 05940bac..75140522 100644
--- a/src/rules/custom_media.rs
+++ b/src/rules/custom_media.rs
@@ -2,6 +2,7 @@
 
 use super::Location;
 use crate::error::PrinterError;
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::media_query::MediaList;
 use crate::printer::Printer;
diff --git a/src/rules/font_face.rs b/src/rules/font_face.rs
index b1202772..a16eccc5 100644
--- a/src/rules/font_face.rs
+++ b/src/rules/font_face.rs
@@ -2,6 +2,7 @@
 
 use super::Location;
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::macros::enum_property;
 use crate::printer::Printer;
diff --git a/src/rules/font_palette_values.rs b/src/rules/font_palette_values.rs
index 88c394a7..93c017b4 100644
--- a/src/rules/font_palette_values.rs
+++ b/src/rules/font_palette_values.rs
@@ -3,6 +3,7 @@
 use super::supports::SupportsRule;
 use super::{CssRule, CssRuleList, Location, MinifyContext};
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::printer::Printer;
 use crate::properties::custom::CustomProperty;
diff --git a/src/rules/import.rs b/src/rules/import.rs
index dea09ace..ca351127 100644
--- a/src/rules/import.rs
+++ b/src/rules/import.rs
@@ -5,6 +5,7 @@ use super::supports::SupportsCondition;
 use super::Location;
 use crate::dependencies::{Dependency, ImportDependency};
 use crate::error::PrinterError;
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::media_query::MediaList;
 use crate::printer::Printer;
diff --git a/src/rules/keyframes.rs b/src/rules/keyframes.rs
index 4ae40fb3..8d74355e 100644
--- a/src/rules/keyframes.rs
+++ b/src/rules/keyframes.rs
@@ -6,6 +6,7 @@ use super::{CssRule, CssRuleList, Location};
 use crate::context::DeclarationContext;
 use crate::declaration::DeclarationBlock;
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::parser::ParserOptions;
 use crate::printer::Printer;
diff --git a/src/rules/layer.rs b/src/rules/layer.rs
index 70933241..064bdef5 100644
--- a/src/rules/layer.rs
+++ b/src/rules/layer.rs
@@ -2,6 +2,7 @@
 
 use super::{CssRuleList, Location, MinifyContext};
 use crate::error::{MinifyError, ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::parser::DefaultAtRule;
 use crate::printer::Printer;
diff --git a/src/rules/namespace.rs b/src/rules/namespace.rs
index 2f807293..cab54432 100644
--- a/src/rules/namespace.rs
+++ b/src/rules/namespace.rs
@@ -2,6 +2,7 @@
 
 use super::Location;
 use crate::error::PrinterError;
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::printer::Printer;
 use crate::traits::ToCss;
diff --git a/src/rules/page.rs b/src/rules/page.rs
index f4aa94ce..8f275e69 100644
--- a/src/rules/page.rs
+++ b/src/rules/page.rs
@@ -3,6 +3,7 @@
 use super::Location;
 use crate::declaration::{parse_declaration, DeclarationBlock};
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::macros::enum_property;
 use crate::printer::Printer;
diff --git a/src/rules/property.rs b/src/rules/property.rs
index 87baaaee..1528b021 100644
--- a/src/rules/property.rs
+++ b/src/rules/property.rs
@@ -1,6 +1,7 @@
 //! The `@property` rule.
 
 use super::Location;
+#[cfg(not(doctest))]
 use crate::lightningcss;
 #[cfg(feature = "visitor")]
 use crate::visitor::Visit;
diff --git a/src/rules/supports.rs b/src/rules/supports.rs
index 0cf42e95..903f8fd8 100644
--- a/src/rules/supports.rs
+++ b/src/rules/supports.rs
@@ -3,6 +3,7 @@
 use super::Location;
 use super::{CssRuleList, MinifyContext};
 use crate::error::{MinifyError, ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::parser::DefaultAtRule;
 use crate::printer::Printer;
diff --git a/src/rules/unknown.rs b/src/rules/unknown.rs
index c1822589..c084bd63 100644
--- a/src/rules/unknown.rs
+++ b/src/rules/unknown.rs
@@ -2,6 +2,7 @@
 
 use super::Location;
 use crate::error::PrinterError;
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::printer::Printer;
 use crate::properties::custom::TokenList;
diff --git a/src/rules/viewport.rs b/src/rules/viewport.rs
index 21ff0043..41829e26 100644
--- a/src/rules/viewport.rs
+++ b/src/rules/viewport.rs
@@ -3,6 +3,7 @@
 use super::Location;
 use crate::declaration::DeclarationBlock;
 use crate::error::PrinterError;
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::printer::Printer;
 use crate::traits::ToCss;
diff --git a/src/stylesheet.rs b/src/stylesheet.rs
index 0ad3808f..06965b03 100644
--- a/src/stylesheet.rs
+++ b/src/stylesheet.rs
@@ -8,6 +8,7 @@ use crate::css_modules::{CssModule, CssModuleExports, CssModuleReferences};
 use crate::declaration::{DeclarationBlock, DeclarationHandler};
 use crate::dependencies::Dependency;
 use crate::error::{Error, ErrorLocation, MinifyErrorKind, ParserError, PrinterError, PrinterErrorKind};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::parser::{DefaultAtRule, DefaultAtRuleParser, TopLevelRuleParser};
 use crate::printer::Printer;
diff --git a/src/values/ident.rs b/src/values/ident.rs
index ed0e718e..6b8b3979 100644
--- a/src/values/ident.rs
+++ b/src/values/ident.rs
@@ -1,6 +1,7 @@
 //! CSS identifiers.
 
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::printer::Printer;
 use crate::properties::css_modules::Specifier;
diff --git a/src/values/image.rs b/src/values/image.rs
index becf6a1e..e7bbeb89 100644
--- a/src/values/image.rs
+++ b/src/values/image.rs
@@ -6,6 +6,7 @@ use super::resolution::Resolution;
 use crate::compat;
 use crate::dependencies::{Dependency, UrlDependency};
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::prefixes::{is_webkit_gradient, Feature};
 use crate::printer::Printer;
diff --git a/src/values/string.rs b/src/values/string.rs
index 0cce3571..d7dcbe7e 100644
--- a/src/values/string.rs
+++ b/src/values/string.rs
@@ -1,5 +1,6 @@
 //! Types used to represent strings.
 
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::traits::{IntoOwned, Parse, ToCss};
 #[cfg(feature = "visitor")]
diff --git a/src/values/syntax.rs b/src/values/syntax.rs
index 662fd05c..3618cb9d 100644
--- a/src/values/syntax.rs
+++ b/src/values/syntax.rs
@@ -3,6 +3,7 @@
 use super::ident::Ident;
 use super::number::{CSSInteger, CSSNumber};
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::printer::Printer;
 use crate::traits::{Parse, ToCss};
diff --git a/src/values/url.rs b/src/values/url.rs
index badb8166..16f8081b 100644
--- a/src/values/url.rs
+++ b/src/values/url.rs
@@ -2,6 +2,7 @@
 
 use crate::dependencies::{Dependency, Location, UrlDependency};
 use crate::error::{ParserError, PrinterError};
+#[cfg(not(doctest))]
 use crate::lightningcss;
 use crate::printer::Printer;
 use crate::traits::{Parse, ToCss};

From fe91be4003d7479e73405b94f6de151925475937 Mon Sep 17 00:00:00 2001
From: Devon Govett <devongovett@gmail.com>
Date: Sun, 8 Oct 2023 22:14:34 -0700
Subject: [PATCH 28/28] Simplify

lightningcss_derive is only really intended to be used by lightningcss itself and not by other crates, so just use `crate` to refer to it.
---
 derive/src/into_owned.rs         | 8 ++++----
 src/declaration.rs               | 2 --
 src/error.rs                     | 2 --
 src/lib.rs                       | 5 -----
 src/media_query.rs               | 3 ---
 src/properties/animation.rs      | 2 --
 src/properties/background.rs     | 2 --
 src/properties/border_image.rs   | 2 --
 src/properties/contain.rs        | 2 --
 src/properties/css_modules.rs    | 2 --
 src/properties/custom.rs         | 2 --
 src/properties/effects.rs        | 2 --
 src/properties/font.rs           | 2 --
 src/properties/grid.rs           | 2 --
 src/properties/list.rs           | 2 --
 src/properties/masking.rs        | 2 --
 src/properties/mod.rs            | 2 --
 src/properties/svg.rs            | 2 --
 src/properties/text.rs           | 2 --
 src/properties/transition.rs     | 2 --
 src/properties/ui.rs             | 2 --
 src/rules/container.rs           | 2 --
 src/rules/counter_style.rs       | 2 --
 src/rules/custom_media.rs        | 2 --
 src/rules/font_face.rs           | 2 --
 src/rules/font_palette_values.rs | 2 --
 src/rules/import.rs              | 2 --
 src/rules/keyframes.rs           | 2 --
 src/rules/layer.rs               | 2 --
 src/rules/namespace.rs           | 2 --
 src/rules/page.rs                | 2 --
 src/rules/property.rs            | 2 --
 src/rules/supports.rs            | 2 --
 src/rules/unknown.rs             | 2 --
 src/rules/viewport.rs            | 2 --
 src/stylesheet.rs                | 2 --
 src/values/ident.rs              | 2 --
 src/values/image.rs              | 2 --
 src/values/string.rs             | 7 +++----
 src/values/syntax.rs             | 2 --
 src/values/url.rs                | 2 --
 41 files changed, 7 insertions(+), 90 deletions(-)

diff --git a/derive/src/into_owned.rs b/derive/src/into_owned.rs
index b686e438..313117bd 100644
--- a/derive/src/into_owned.rs
+++ b/derive/src/into_owned.rs
@@ -116,7 +116,7 @@ pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
 
   for type_param in type_param_names {
     generics.make_where_clause().predicates.push_value(parse_quote! {
-      #type_param: 'static + for<'aa> lightningcss::traits::IntoOwned<'aa>
+      #type_param: 'static + for<'aa> crate::traits::IntoOwned<'aa>
     })
   }
 
@@ -142,7 +142,7 @@ pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
 
   let into_owned = if !has_lifetime {
     quote! {
-      impl #impl_generics lightningcss::traits::IntoOwned<'any> for #self_name #ty_generics #where_clause {
+      impl #impl_generics crate::traits::IntoOwned<'any> for #self_name #ty_generics #where_clause {
         type Owned = Self;
 
         #[inline]
@@ -154,11 +154,11 @@ pub(crate) fn derive_into_owned(input: TokenStream) -> TokenStream {
   } else {
     let params = generics.type_params();
     quote! {
-      impl #impl_generics lightningcss::traits::IntoOwned<'any> for #self_name #ty_generics #where_clause {
+      impl #impl_generics crate::traits::IntoOwned<'any> for #self_name #ty_generics #where_clause {
         type Owned = #self_name<'any, #(#params),*>;
         /// Consumes the value and returns an owned clone.
         fn into_owned(self) -> Self::Owned {
-          use lightningcss::traits::IntoOwned;
+          use crate::traits::IntoOwned;
 
           #res
         }
diff --git a/src/declaration.rs b/src/declaration.rs
index 62605e5f..dd2283f3 100644
--- a/src/declaration.rs
+++ b/src/declaration.rs
@@ -5,8 +5,6 @@ use std::ops::Range;
 
 use crate::context::PropertyHandlerContext;
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::parser::ParserOptions;
 use crate::printer::Printer;
 use crate::properties::box_shadow::BoxShadowHandler;
diff --git a/src/error.rs b/src/error.rs
index 73c2e37a..c142be00 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -1,7 +1,5 @@
 //! Error types.
 
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::properties::custom::Token;
 use crate::rules::Location;
 #[cfg(feature = "into_owned")]
diff --git a/src/lib.rs b/src/lib.rs
index f6ef5176..9d0338e5 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -47,11 +47,6 @@ pub mod visitor;
 #[cfg(feature = "serde")]
 mod serialization;
 
-/// hack for derive
-mod lightningcss {
-  pub use crate::traits;
-}
-
 #[cfg(test)]
 mod tests {
   use crate::css_modules::{CssModuleExport, CssModuleExports, CssModuleReference, CssModuleReferences};
diff --git a/src/media_query.rs b/src/media_query.rs
index 83a48870..7497a58f 100644
--- a/src/media_query.rs
+++ b/src/media_query.rs
@@ -1,8 +1,5 @@
 //! Media queries.
 use crate::error::{ErrorWithLocation, MinifyError, MinifyErrorKind, ParserError, PrinterError};
-#[cfg(feature = "into_owned")]
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::macros::enum_property;
 use crate::parser::starts_with_ignore_ascii_case;
 use crate::printer::Printer;
diff --git a/src/properties/animation.rs b/src/properties/animation.rs
index e36ed53e..169c2b9d 100644
--- a/src/properties/animation.rs
+++ b/src/properties/animation.rs
@@ -3,8 +3,6 @@
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::macros::*;
 use crate::prefixes::Feature;
 use crate::printer::Printer;
diff --git a/src/properties/background.rs b/src/properties/background.rs
index 47224093..873247ff 100644
--- a/src/properties/background.rs
+++ b/src/properties/background.rs
@@ -3,8 +3,6 @@
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::macros::*;
 use crate::prefixes::Feature;
 use crate::printer::Printer;
diff --git a/src/properties/border_image.rs b/src/properties/border_image.rs
index 39834525..973f0375 100644
--- a/src/properties/border_image.rs
+++ b/src/properties/border_image.rs
@@ -3,8 +3,6 @@
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::prefixes::Feature;
 use crate::printer::Printer;
 use crate::properties::{Property, PropertyId, VendorPrefix};
diff --git a/src/properties/contain.rs b/src/properties/contain.rs
index e43c76b3..05fdc032 100644
--- a/src/properties/contain.rs
+++ b/src/properties/contain.rs
@@ -2,8 +2,6 @@
 
 #![allow(non_upper_case_globals)]
 
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use cssparser::*;
 use smallvec::SmallVec;
 
diff --git a/src/properties/css_modules.rs b/src/properties/css_modules.rs
index a8cd752b..e4a21172 100644
--- a/src/properties/css_modules.rs
+++ b/src/properties/css_modules.rs
@@ -2,8 +2,6 @@
 
 use crate::dependencies::Location;
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::printer::Printer;
 use crate::traits::{Parse, ToCss};
 use crate::values::ident::{CustomIdent, CustomIdentList};
diff --git a/src/properties/custom.rs b/src/properties/custom.rs
index 447adbbf..891c4831 100644
--- a/src/properties/custom.rs
+++ b/src/properties/custom.rs
@@ -1,8 +1,6 @@
 //! CSS custom properties and unparsed token values.
 
 use crate::error::{ParserError, PrinterError, PrinterErrorKind};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::macros::enum_property;
 use crate::prefixes::Feature;
 use crate::printer::Printer;
diff --git a/src/properties/effects.rs b/src/properties/effects.rs
index f0cc0f1b..20b2ee2e 100644
--- a/src/properties/effects.rs
+++ b/src/properties/effects.rs
@@ -1,8 +1,6 @@
 //! CSS properties related to filters and effects.
 
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::printer::Printer;
 use crate::targets::{Browsers, Targets};
 use crate::traits::{FallbackValues, IsCompatible, Parse, ToCss, Zero};
diff --git a/src/properties/font.rs b/src/properties/font.rs
index 171ca063..3a81486f 100644
--- a/src/properties/font.rs
+++ b/src/properties/font.rs
@@ -7,8 +7,6 @@ use crate::compat::Feature;
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::macros::*;
 use crate::printer::Printer;
 use crate::targets::should_compile;
diff --git a/src/properties/grid.rs b/src/properties/grid.rs
index 41155a3c..6c783b85 100644
--- a/src/properties/grid.rs
+++ b/src/properties/grid.rs
@@ -5,8 +5,6 @@
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{Error, ErrorLocation, ParserError, PrinterError, PrinterErrorKind};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::macros::{define_shorthand, impl_shorthand};
 use crate::printer::Printer;
 use crate::properties::{Property, PropertyId};
diff --git a/src/properties/list.rs b/src/properties/list.rs
index 82a13cb9..b37bc0ab 100644
--- a/src/properties/list.rs
+++ b/src/properties/list.rs
@@ -4,8 +4,6 @@ use super::{Property, PropertyId};
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::macros::{define_shorthand, enum_property, shorthand_handler, shorthand_property};
 use crate::printer::Printer;
 use crate::targets::{Browsers, Targets};
diff --git a/src/properties/masking.rs b/src/properties/masking.rs
index 84a77412..5a91c56c 100644
--- a/src/properties/masking.rs
+++ b/src/properties/masking.rs
@@ -6,8 +6,6 @@ use super::PropertyId;
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::macros::{define_list_shorthand, define_shorthand, enum_property, property_bitflags};
 use crate::prefixes::Feature;
 use crate::printer::Printer;
diff --git a/src/properties/mod.rs b/src/properties/mod.rs
index dc81427e..d5d9027d 100644
--- a/src/properties/mod.rs
+++ b/src/properties/mod.rs
@@ -122,8 +122,6 @@ pub mod ui;
 
 use crate::declaration::DeclarationBlock;
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::logical::{LogicalGroup, PropertyCategory};
 use crate::parser::starts_with_ignore_ascii_case;
 use crate::parser::ParserOptions;
diff --git a/src/properties/svg.rs b/src/properties/svg.rs
index e2309096..aa471250 100644
--- a/src/properties/svg.rs
+++ b/src/properties/svg.rs
@@ -1,8 +1,6 @@
 //! CSS properties used in SVG.
 
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::macros::enum_property;
 use crate::printer::Printer;
 use crate::targets::{Browsers, Targets};
diff --git a/src/properties/text.rs b/src/properties/text.rs
index 187a84d6..92cdae79 100644
--- a/src/properties/text.rs
+++ b/src/properties/text.rs
@@ -7,8 +7,6 @@ use crate::compat;
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::macros::{define_shorthand, enum_property};
 use crate::prefixes::Feature;
 use crate::printer::Printer;
diff --git a/src/properties/transition.rs b/src/properties/transition.rs
index 1a2acdab..fd296a64 100644
--- a/src/properties/transition.rs
+++ b/src/properties/transition.rs
@@ -5,8 +5,6 @@ use crate::compat;
 use crate::context::PropertyHandlerContext;
 use crate::declaration::{DeclarationBlock, DeclarationList};
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::macros::define_list_shorthand;
 use crate::prefixes::Feature;
 use crate::printer::Printer;
diff --git a/src/properties/ui.rs b/src/properties/ui.rs
index 91e84e9d..2fe83a04 100644
--- a/src/properties/ui.rs
+++ b/src/properties/ui.rs
@@ -2,8 +2,6 @@
 
 use crate::declaration::DeclarationBlock;
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::macros::{define_shorthand, enum_property, shorthand_property};
 use crate::printer::Printer;
 use crate::properties::{Property, PropertyId};
diff --git a/src/rules/container.rs b/src/rules/container.rs
index a858df9b..9af13d99 100644
--- a/src/rules/container.rs
+++ b/src/rules/container.rs
@@ -5,8 +5,6 @@ use cssparser::*;
 use super::Location;
 use super::{CssRuleList, MinifyContext};
 use crate::error::{MinifyError, ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::media_query::{
   define_query_features, operation_to_css, parse_query_condition, to_css_with_parens_if_needed, FeatureToCss,
   MediaFeatureType, Operator, QueryCondition, QueryConditionFlags, QueryFeature, ValueType,
diff --git a/src/rules/counter_style.rs b/src/rules/counter_style.rs
index 7674ba6b..50602807 100644
--- a/src/rules/counter_style.rs
+++ b/src/rules/counter_style.rs
@@ -3,8 +3,6 @@
 use super::Location;
 use crate::declaration::DeclarationBlock;
 use crate::error::PrinterError;
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::printer::Printer;
 use crate::traits::ToCss;
 use crate::values::ident::CustomIdent;
diff --git a/src/rules/custom_media.rs b/src/rules/custom_media.rs
index 75140522..322a1847 100644
--- a/src/rules/custom_media.rs
+++ b/src/rules/custom_media.rs
@@ -2,8 +2,6 @@
 
 use super::Location;
 use crate::error::PrinterError;
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::media_query::MediaList;
 use crate::printer::Printer;
 use crate::traits::ToCss;
diff --git a/src/rules/font_face.rs b/src/rules/font_face.rs
index a16eccc5..df827e8f 100644
--- a/src/rules/font_face.rs
+++ b/src/rules/font_face.rs
@@ -2,8 +2,6 @@
 
 use super::Location;
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::macros::enum_property;
 use crate::printer::Printer;
 use crate::properties::custom::CustomProperty;
diff --git a/src/rules/font_palette_values.rs b/src/rules/font_palette_values.rs
index 93c017b4..08ea5417 100644
--- a/src/rules/font_palette_values.rs
+++ b/src/rules/font_palette_values.rs
@@ -3,8 +3,6 @@
 use super::supports::SupportsRule;
 use super::{CssRule, CssRuleList, Location, MinifyContext};
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::printer::Printer;
 use crate::properties::custom::CustomProperty;
 use crate::properties::font::FontFamily;
diff --git a/src/rules/import.rs b/src/rules/import.rs
index ca351127..9329fe9f 100644
--- a/src/rules/import.rs
+++ b/src/rules/import.rs
@@ -5,8 +5,6 @@ use super::supports::SupportsCondition;
 use super::Location;
 use crate::dependencies::{Dependency, ImportDependency};
 use crate::error::PrinterError;
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::media_query::MediaList;
 use crate::printer::Printer;
 use crate::traits::ToCss;
diff --git a/src/rules/keyframes.rs b/src/rules/keyframes.rs
index 8d74355e..8e11218e 100644
--- a/src/rules/keyframes.rs
+++ b/src/rules/keyframes.rs
@@ -6,8 +6,6 @@ use super::{CssRule, CssRuleList, Location};
 use crate::context::DeclarationContext;
 use crate::declaration::DeclarationBlock;
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::parser::ParserOptions;
 use crate::printer::Printer;
 use crate::properties::custom::{CustomProperty, UnparsedProperty};
diff --git a/src/rules/layer.rs b/src/rules/layer.rs
index 064bdef5..eaa04c86 100644
--- a/src/rules/layer.rs
+++ b/src/rules/layer.rs
@@ -2,8 +2,6 @@
 
 use super::{CssRuleList, Location, MinifyContext};
 use crate::error::{MinifyError, ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::parser::DefaultAtRule;
 use crate::printer::Printer;
 use crate::traits::{Parse, ToCss};
diff --git a/src/rules/namespace.rs b/src/rules/namespace.rs
index cab54432..f70cd6fb 100644
--- a/src/rules/namespace.rs
+++ b/src/rules/namespace.rs
@@ -2,8 +2,6 @@
 
 use super::Location;
 use crate::error::PrinterError;
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::printer::Printer;
 use crate::traits::ToCss;
 use crate::values::ident::Ident;
diff --git a/src/rules/page.rs b/src/rules/page.rs
index 8f275e69..e3a03cae 100644
--- a/src/rules/page.rs
+++ b/src/rules/page.rs
@@ -3,8 +3,6 @@
 use super::Location;
 use crate::declaration::{parse_declaration, DeclarationBlock};
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::macros::enum_property;
 use crate::printer::Printer;
 use crate::stylesheet::ParserOptions;
diff --git a/src/rules/property.rs b/src/rules/property.rs
index 1528b021..97d2e82b 100644
--- a/src/rules/property.rs
+++ b/src/rules/property.rs
@@ -1,8 +1,6 @@
 //! The `@property` rule.
 
 use super::Location;
-#[cfg(not(doctest))]
-use crate::lightningcss;
 #[cfg(feature = "visitor")]
 use crate::visitor::Visit;
 use crate::{
diff --git a/src/rules/supports.rs b/src/rules/supports.rs
index 903f8fd8..f16a4f0c 100644
--- a/src/rules/supports.rs
+++ b/src/rules/supports.rs
@@ -3,8 +3,6 @@
 use super::Location;
 use super::{CssRuleList, MinifyContext};
 use crate::error::{MinifyError, ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::parser::DefaultAtRule;
 use crate::printer::Printer;
 use crate::properties::PropertyId;
diff --git a/src/rules/unknown.rs b/src/rules/unknown.rs
index c084bd63..492d4c52 100644
--- a/src/rules/unknown.rs
+++ b/src/rules/unknown.rs
@@ -2,8 +2,6 @@
 
 use super::Location;
 use crate::error::PrinterError;
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::printer::Printer;
 use crate::properties::custom::TokenList;
 use crate::traits::ToCss;
diff --git a/src/rules/viewport.rs b/src/rules/viewport.rs
index 41829e26..531de878 100644
--- a/src/rules/viewport.rs
+++ b/src/rules/viewport.rs
@@ -3,8 +3,6 @@
 use super::Location;
 use crate::declaration::DeclarationBlock;
 use crate::error::PrinterError;
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::printer::Printer;
 use crate::traits::ToCss;
 use crate::vendor_prefix::VendorPrefix;
diff --git a/src/stylesheet.rs b/src/stylesheet.rs
index 06965b03..ebd0a9f0 100644
--- a/src/stylesheet.rs
+++ b/src/stylesheet.rs
@@ -8,8 +8,6 @@ use crate::css_modules::{CssModule, CssModuleExports, CssModuleReferences};
 use crate::declaration::{DeclarationBlock, DeclarationHandler};
 use crate::dependencies::Dependency;
 use crate::error::{Error, ErrorLocation, MinifyErrorKind, ParserError, PrinterError, PrinterErrorKind};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::parser::{DefaultAtRule, DefaultAtRuleParser, TopLevelRuleParser};
 use crate::printer::Printer;
 use crate::rules::{CssRule, CssRuleList, MinifyContext};
diff --git a/src/values/ident.rs b/src/values/ident.rs
index 6b8b3979..5b775e98 100644
--- a/src/values/ident.rs
+++ b/src/values/ident.rs
@@ -1,8 +1,6 @@
 //! CSS identifiers.
 
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::printer::Printer;
 use crate::properties::css_modules::Specifier;
 use crate::traits::{Parse, ParseWithOptions, ToCss};
diff --git a/src/values/image.rs b/src/values/image.rs
index e7bbeb89..756b3d4c 100644
--- a/src/values/image.rs
+++ b/src/values/image.rs
@@ -6,8 +6,6 @@ use super::resolution::Resolution;
 use crate::compat;
 use crate::dependencies::{Dependency, UrlDependency};
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::prefixes::{is_webkit_gradient, Feature};
 use crate::printer::Printer;
 use crate::targets::{Browsers, Targets};
diff --git a/src/values/string.rs b/src/values/string.rs
index d7dcbe7e..a067adaa 100644
--- a/src/values/string.rs
+++ b/src/values/string.rs
@@ -1,8 +1,6 @@
 //! Types used to represent strings.
 
-#[cfg(not(doctest))]
-use crate::lightningcss;
-use crate::traits::{IntoOwned, Parse, ToCss};
+use crate::traits::{Parse, ToCss};
 #[cfg(feature = "visitor")]
 use crate::visitor::{Visit, VisitTypes, Visitor};
 use cssparser::{serialize_string, CowRcStr};
@@ -133,7 +131,8 @@ impl<'a> CowArcStr<'a> {
   }
 }
 
-impl<'any> IntoOwned<'any> for CowArcStr<'_> {
+#[cfg(feature = "into_owned")]
+impl<'any> crate::traits::IntoOwned<'any> for CowArcStr<'_> {
   type Owned = CowArcStr<'any>;
 
   /// Consumes the value and returns an owned clone.
diff --git a/src/values/syntax.rs b/src/values/syntax.rs
index 3618cb9d..94b8429e 100644
--- a/src/values/syntax.rs
+++ b/src/values/syntax.rs
@@ -3,8 +3,6 @@
 use super::ident::Ident;
 use super::number::{CSSInteger, CSSNumber};
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::printer::Printer;
 use crate::traits::{Parse, ToCss};
 use crate::values;
diff --git a/src/values/url.rs b/src/values/url.rs
index 16f8081b..eaf37bfe 100644
--- a/src/values/url.rs
+++ b/src/values/url.rs
@@ -2,8 +2,6 @@
 
 use crate::dependencies::{Dependency, Location, UrlDependency};
 use crate::error::{ParserError, PrinterError};
-#[cfg(not(doctest))]
-use crate::lightningcss;
 use crate::printer::Printer;
 use crate::traits::{Parse, ToCss};
 use crate::values::string::CowArcStr;