Deleted vendor folder

1 files changed, 0 insertions, 1468 deletions

diff --git a/vendor/clap_derive/src/item.rs b/vendor/clap_derive/src/item.rs
deleted file mode 100644
index 114849f..0000000
--- a/vendor/clap_derive/src/item.rs
+++ /dev/null
@@ -1,1468 +0,0 @@
-// Copyright 2018 Guillaume Pinot (@TeXitoi) <texitoi@texitoi.eu>,
-// Kevin Knapp (@kbknapp) <kbknapp@gmail.com>, and
-// Ana Hobden (@hoverbear) <operator@hoverbear.org>
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-//
-// This work was derived from Structopt (https://github.com/TeXitoi/structopt)
-// commit#ea76fa1b1b273e65e3b0b1046643715b49bec51f which is licensed under the
-// MIT/Apache 2.0 license.
-
-use std::env;
-
-use heck::{ToKebabCase, ToLowerCamelCase, ToShoutySnakeCase, ToSnakeCase, ToUpperCamelCase};
-use proc_macro2::{self, Span, TokenStream};
-use quote::{format_ident, quote, quote_spanned, ToTokens};
-use syn::DeriveInput;
-use syn::{self, ext::IdentExt, spanned::Spanned, Attribute, Field, Ident, LitStr, Type, Variant};
-
-use crate::attr::*;
-use crate::utils::{extract_doc_comment, format_doc_comment, inner_type, is_simple_ty, Sp, Ty};
-
-/// Default casing style for generated arguments.
-pub const DEFAULT_CASING: CasingStyle = CasingStyle::Kebab;
-
-/// Default casing style for environment variables
-pub const DEFAULT_ENV_CASING: CasingStyle = CasingStyle::ScreamingSnake;
-
-#[derive(Clone)]
-pub struct Item {
-    name: Name,
-    casing: Sp<CasingStyle>,
-    env_casing: Sp<CasingStyle>,
-    ty: Option<Type>,
-    doc_comment: Vec<Method>,
-    methods: Vec<Method>,
-    deprecations: Vec<Deprecation>,
-    value_parser: Option<ValueParser>,
-    action: Option<Action>,
-    verbatim_doc_comment: bool,
-    force_long_help: bool,
-    next_display_order: Option<Method>,
-    next_help_heading: Option<Method>,
-    is_enum: bool,
-    is_positional: bool,
-    skip_group: bool,
-    group_id: Name,
-    group_methods: Vec<Method>,
-    kind: Sp<Kind>,
-}
-
-impl Item {
-    pub fn from_args_struct(input: &DeriveInput, name: Name) -> Result<Self, syn::Error> {
-        let ident = input.ident.clone();
-        let span = input.ident.span();
-        let attrs = &input.attrs;
-        let argument_casing = Sp::new(DEFAULT_CASING, span);
-        let env_casing = Sp::new(DEFAULT_ENV_CASING, span);
-        let kind = Sp::new(Kind::Command(Sp::new(Ty::Other, span)), span);
-
-        let mut res = Self::new(name, ident, None, argument_casing, env_casing, kind);
-        let parsed_attrs = ClapAttr::parse_all(attrs)?;
-        res.infer_kind(&parsed_attrs)?;
-        res.push_attrs(&parsed_attrs)?;
-        res.push_doc_comment(attrs, "about", Some("long_about"));
-
-        Ok(res)
-    }
-
-    pub fn from_subcommand_enum(input: &DeriveInput, name: Name) -> Result<Self, syn::Error> {
-        let ident = input.ident.clone();
-        let span = input.ident.span();
-        let attrs = &input.attrs;
-        let argument_casing = Sp::new(DEFAULT_CASING, span);
-        let env_casing = Sp::new(DEFAULT_ENV_CASING, span);
-        let kind = Sp::new(Kind::Command(Sp::new(Ty::Other, span)), span);
-
-        let mut res = Self::new(name, ident, None, argument_casing, env_casing, kind);
-        let parsed_attrs = ClapAttr::parse_all(attrs)?;
-        res.infer_kind(&parsed_attrs)?;
-        res.push_attrs(&parsed_attrs)?;
-        res.push_doc_comment(attrs, "about", Some("long_about"));
-
-        Ok(res)
-    }
-
-    pub fn from_value_enum(input: &DeriveInput, name: Name) -> Result<Self, syn::Error> {
-        let ident = input.ident.clone();
-        let span = input.ident.span();
-        let attrs = &input.attrs;
-        let argument_casing = Sp::new(DEFAULT_CASING, span);
-        let env_casing = Sp::new(DEFAULT_ENV_CASING, span);
-        let kind = Sp::new(Kind::Value, span);
-
-        let mut res = Self::new(name, ident, None, argument_casing, env_casing, kind);
-        let parsed_attrs = ClapAttr::parse_all(attrs)?;
-        res.infer_kind(&parsed_attrs)?;
-        res.push_attrs(&parsed_attrs)?;
-        // Ignoring `push_doc_comment` as there is no top-level clap builder to add documentation
-        // to
-
-        if res.has_explicit_methods() {
-            abort!(
-                res.methods[0].name.span(),
-                "{} doesn't exist for `ValueEnum` enums",
-                res.methods[0].name
-            );
-        }
-
-        Ok(res)
-    }
-
-    pub fn from_subcommand_variant(
-        variant: &Variant,
-        struct_casing: Sp<CasingStyle>,
-        env_casing: Sp<CasingStyle>,
-    ) -> Result<Self, syn::Error> {
-        let name = variant.ident.clone();
-        let ident = variant.ident.clone();
-        let span = variant.span();
-        let ty = match variant.fields {
-            syn::Fields::Unnamed(syn::FieldsUnnamed { ref unnamed, .. }) if unnamed.len() == 1 => {
-                Ty::from_syn_ty(&unnamed[0].ty)
-            }
-            syn::Fields::Named(_) | syn::Fields::Unnamed(..) | syn::Fields::Unit => {
-                Sp::new(Ty::Other, span)
-            }
-        };
-        let kind = Sp::new(Kind::Command(ty), span);
-        let mut res = Self::new(
-            Name::Derived(name),
-            ident,
-            None,
-            struct_casing,
-            env_casing,
-            kind,
-        );
-        let parsed_attrs = ClapAttr::parse_all(&variant.attrs)?;
-        res.infer_kind(&parsed_attrs)?;
-        res.push_attrs(&parsed_attrs)?;
-        if matches!(&*res.kind, Kind::Command(_) | Kind::Subcommand(_)) {
-            res.push_doc_comment(&variant.attrs, "about", Some("long_about"));
-        }
-
-        match &*res.kind {
-            Kind::Flatten(_) => {
-                if res.has_explicit_methods() {
-                    abort!(
-                        res.kind.span(),
-                        "methods are not allowed for flattened entry"
-                    );
-                }
-            }
-
-            Kind::Subcommand(_)
-            | Kind::ExternalSubcommand
-            | Kind::FromGlobal(_)
-            | Kind::Skip(_, _)
-            | Kind::Command(_)
-            | Kind::Value
-            | Kind::Arg(_) => (),
-        }
-
-        Ok(res)
-    }
-
-    pub fn from_value_enum_variant(
-        variant: &Variant,
-        argument_casing: Sp<CasingStyle>,
-        env_casing: Sp<CasingStyle>,
-    ) -> Result<Self, syn::Error> {
-        let ident = variant.ident.clone();
-        let span = variant.span();
-        let kind = Sp::new(Kind::Value, span);
-        let mut res = Self::new(
-            Name::Derived(variant.ident.clone()),
-            ident,
-            None,
-            argument_casing,
-            env_casing,
-            kind,
-        );
-        let parsed_attrs = ClapAttr::parse_all(&variant.attrs)?;
-        res.infer_kind(&parsed_attrs)?;
-        res.push_attrs(&parsed_attrs)?;
-        if matches!(&*res.kind, Kind::Value) {
-            res.push_doc_comment(&variant.attrs, "help", None);
-        }
-
-        Ok(res)
-    }
-
-    pub fn from_args_field(
-        field: &Field,
-        struct_casing: Sp<CasingStyle>,
-        env_casing: Sp<CasingStyle>,
-    ) -> Result<Self, syn::Error> {
-        let name = field.ident.clone().unwrap();
-        let ident = field.ident.clone().unwrap();
-        let span = field.span();
-        let ty = Ty::from_syn_ty(&field.ty);
-        let kind = Sp::new(Kind::Arg(ty), span);
-        let mut res = Self::new(
-            Name::Derived(name),
-            ident,
-            Some(field.ty.clone()),
-            struct_casing,
-            env_casing,
-            kind,
-        );
-        let parsed_attrs = ClapAttr::parse_all(&field.attrs)?;
-        res.infer_kind(&parsed_attrs)?;
-        res.push_attrs(&parsed_attrs)?;
-        if matches!(&*res.kind, Kind::Arg(_)) {
-            res.push_doc_comment(&field.attrs, "help", Some("long_help"));
-        }
-
-        match &*res.kind {
-            Kind::Flatten(_) => {
-                if res.has_explicit_methods() {
-                    abort!(
-                        res.kind.span(),
-                        "methods are not allowed for flattened entry"
-                    );
-                }
-            }
-
-            Kind::Subcommand(_) => {
-                if res.has_explicit_methods() {
-                    abort!(
-                        res.kind.span(),
-                        "methods in attributes are not allowed for subcommand"
-                    );
-                }
-            }
-            Kind::Skip(_, _)
-            | Kind::FromGlobal(_)
-            | Kind::Arg(_)
-            | Kind::Command(_)
-            | Kind::Value
-            | Kind::ExternalSubcommand => {}
-        }
-
-        Ok(res)
-    }
-
-    fn new(
-        name: Name,
-        ident: Ident,
-        ty: Option<Type>,
-        casing: Sp<CasingStyle>,
-        env_casing: Sp<CasingStyle>,
-        kind: Sp<Kind>,
-    ) -> Self {
-        let group_id = Name::Derived(ident);
-        Self {
-            name,
-            ty,
-            casing,
-            env_casing,
-            doc_comment: vec![],
-            methods: vec![],
-            deprecations: vec![],
-            value_parser: None,
-            action: None,
-            verbatim_doc_comment: false,
-            force_long_help: false,
-            next_display_order: None,
-            next_help_heading: None,
-            is_enum: false,
-            is_positional: true,
-            skip_group: false,
-            group_id,
-            group_methods: vec![],
-            kind,
-        }
-    }
-
-    fn push_method(&mut self, kind: AttrKind, name: Ident, arg: impl ToTokens) {
-        self.push_method_(kind, name, arg.to_token_stream());
-    }
-
-    fn push_method_(&mut self, kind: AttrKind, name: Ident, arg: TokenStream) {
-        if name == "id" {
-            match kind {
-                AttrKind::Command | AttrKind::Value => {
-                    self.deprecations.push(Deprecation {
-                        span: name.span(),
-                        id: "id_is_only_for_arg",
-                        version: "4.0.0",
-                        description: format!(
-                            "`#[{}(id)] was allowed by mistake, instead use `#[{}(name)]`",
-                            kind.as_str(),
-                            kind.as_str()
-                        ),
-                    });
-                    self.name = Name::Assigned(arg);
-                }
-                AttrKind::Group => {
-                    self.group_id = Name::Assigned(arg);
-                }
-                AttrKind::Arg | AttrKind::Clap | AttrKind::StructOpt => {
-                    self.name = Name::Assigned(arg);
-                }
-            }
-        } else if name == "name" {
-            match kind {
-                AttrKind::Arg => {
-                    self.deprecations.push(Deprecation {
-                        span: name.span(),
-                        id: "id_is_only_for_arg",
-                        version: "4.0.0",
-                        description: format!(
-                            "`#[{}(name)] was allowed by mistake, instead use `#[{}(id)]` or `#[{}(value_name)]`",
-                            kind.as_str(),
-                            kind.as_str(),
-                            kind.as_str()
-                        ),
-                    });
-                    self.name = Name::Assigned(arg);
-                }
-                AttrKind::Group => self.group_methods.push(Method::new(name, arg)),
-                AttrKind::Command | AttrKind::Value | AttrKind::Clap | AttrKind::StructOpt => {
-                    self.name = Name::Assigned(arg);
-                }
-            }
-        } else if name == "value_parser" {
-            self.value_parser = Some(ValueParser::Explicit(Method::new(name, arg)));
-        } else if name == "action" {
-            self.action = Some(Action::Explicit(Method::new(name, arg)));
-        } else {
-            if name == "short" || name == "long" {
-                self.is_positional = false;
-            }
-            match kind {
-                AttrKind::Group => self.group_methods.push(Method::new(name, arg)),
-                _ => self.methods.push(Method::new(name, arg)),
-            };
-        }
-    }
-
-    fn infer_kind(&mut self, attrs: &[ClapAttr]) -> Result<(), syn::Error> {
-        for attr in attrs {
-            if let Some(AttrValue::Call(_)) = &attr.value {
-                continue;
-            }
-
-            let actual_attr_kind = *attr.kind.get();
-            let kind = match &attr.magic {
-                Some(MagicAttrName::FromGlobal) => {
-                    if attr.value.is_some() {
-                        let expr = attr.value_or_abort()?;
-                        abort!(expr, "attribute `{}` does not accept a value", attr.name);
-                    }
-                    let ty = self
-                        .kind()
-                        .ty()
-                        .cloned()
-                        .unwrap_or_else(|| Sp::new(Ty::Other, self.kind.span()));
-                    let kind = Sp::new(Kind::FromGlobal(ty), attr.name.clone().span());
-                    Some(kind)
-                }
-                Some(MagicAttrName::Subcommand) if attr.value.is_none() => {
-                    if attr.value.is_some() {
-                        let expr = attr.value_or_abort()?;
-                        abort!(expr, "attribute `{}` does not accept a value", attr.name);
-                    }
-                    let ty = self
-                        .kind()
-                        .ty()
-                        .cloned()
-                        .unwrap_or_else(|| Sp::new(Ty::Other, self.kind.span()));
-                    let kind = Sp::new(Kind::Subcommand(ty), attr.name.clone().span());
-                    Some(kind)
-                }
-                Some(MagicAttrName::ExternalSubcommand) if attr.value.is_none() => {
-                    if attr.value.is_some() {
-                        let expr = attr.value_or_abort()?;
-                        abort!(expr, "attribute `{}` does not accept a value", attr.name);
-                    }
-                    let kind = Sp::new(Kind::ExternalSubcommand, attr.name.clone().span());
-                    Some(kind)
-                }
-                Some(MagicAttrName::Flatten) if attr.value.is_none() => {
-                    if attr.value.is_some() {
-                        let expr = attr.value_or_abort()?;
-                        abort!(expr, "attribute `{}` does not accept a value", attr.name);
-                    }
-                    let ty = self
-                        .kind()
-                        .ty()
-                        .cloned()
-                        .unwrap_or_else(|| Sp::new(Ty::Other, self.kind.span()));
-                    let kind = Sp::new(Kind::Flatten(ty), attr.name.clone().span());
-                    Some(kind)
-                }
-                Some(MagicAttrName::Skip) if actual_attr_kind != AttrKind::Group => {
-                    let expr = attr.value.clone();
-                    let kind = Sp::new(
-                        Kind::Skip(expr, self.kind.attr_kind()),
-                        attr.name.clone().span(),
-                    );
-                    Some(kind)
-                }
-                _ => None,
-            };
-
-            if let Some(kind) = kind {
-                self.set_kind(kind)?;
-            }
-        }
-
-        Ok(())
-    }
-
-    fn push_attrs(&mut self, attrs: &[ClapAttr]) -> Result<(), syn::Error> {
-        for attr in attrs {
-            let actual_attr_kind = *attr.kind.get();
-            let expected_attr_kind = self.kind.attr_kind();
-            match (actual_attr_kind, expected_attr_kind) {
-                (AttrKind::Clap, _) | (AttrKind::StructOpt, _) => {
-                    self.deprecations.push(Deprecation::attribute(
-                        "4.0.0",
-                        actual_attr_kind,
-                        expected_attr_kind,
-                        attr.kind.span(),
-                    ));
-                }
-
-                (AttrKind::Group, AttrKind::Command) => {}
-
-                _ if attr.kind != expected_attr_kind => {
-                    abort!(
-                        attr.kind.span(),
-                        "Expected `{}` attribute instead of `{}`",
-                        expected_attr_kind.as_str(),
-                        actual_attr_kind.as_str()
-                    );
-                }
-
-                _ => {}
-            }
-
-            if let Some(AttrValue::Call(tokens)) = &attr.value {
-                // Force raw mode with method call syntax
-                self.push_method(*attr.kind.get(), attr.name.clone(), quote!(#(#tokens),*));
-                continue;
-            }
-
-            match &attr.magic {
-                Some(MagicAttrName::Short) if attr.value.is_none() => {
-                    assert_attr_kind(attr, &[AttrKind::Arg])?;
-
-                    self.push_method(
-                        *attr.kind.get(),
-                        attr.name.clone(),
-                        self.name.clone().translate_char(*self.casing),
-                    );
-                }
-
-                Some(MagicAttrName::Long) if attr.value.is_none() => {
-                    assert_attr_kind(attr, &[AttrKind::Arg])?;
-
-                    self.push_method(*attr.kind.get(), attr.name.clone(), self.name.clone().translate(*self.casing));
-                }
-
-                Some(MagicAttrName::ValueParser) if attr.value.is_none() => {
-                    assert_attr_kind(attr, &[AttrKind::Arg])?;
-
-                    self.deprecations.push(Deprecation {
-                        span: attr.name.span(),
-                        id: "bare_value_parser",
-                        version: "4.0.0",
-                        description: "`#[arg(value_parser)]` is now the default and is no longer needed`".to_owned(),
-                    });
-                    self.value_parser = Some(ValueParser::Implicit(attr.name.clone()));
-                }
-
-                Some(MagicAttrName::Action) if attr.value.is_none() => {
-                    assert_attr_kind(attr, &[AttrKind::Arg])?;
-
-                    self.deprecations.push(Deprecation {
-                        span: attr.name.span(),
-                        id: "bare_action",
-                        version: "4.0.0",
-                        description: "`#[arg(action)]` is now the default and is no longer needed`".to_owned(),
-                    });
-                    self.action = Some(Action::Implicit(attr.name.clone()));
-                }
-
-                Some(MagicAttrName::Env) if attr.value.is_none() => {
-                    assert_attr_kind(attr, &[AttrKind::Arg])?;
-
-                    self.push_method(
-                        *attr.kind.get(),
-                        attr.name.clone(),
-                        self.name.clone().translate(*self.env_casing),
-                    );
-                }
-
-                Some(MagicAttrName::ValueEnum) if attr.value.is_none() => {
-                    assert_attr_kind(attr, &[AttrKind::Arg])?;
-
-                    self.is_enum = true
-                }
-
-                Some(MagicAttrName::VerbatimDocComment) if attr.value.is_none() => {
-                    self.verbatim_doc_comment = true
-                }
-
-                Some(MagicAttrName::About) if attr.value.is_none() => {
-                    assert_attr_kind(attr, &[AttrKind::Command])?;
-
-                    if let Some(method) =
-                        Method::from_env(attr.name.clone(), "CARGO_PKG_DESCRIPTION")?
-                    {
-                        self.methods.push(method);
-                    }
-                }
-
-                Some(MagicAttrName::LongAbout) if attr.value.is_none() => {
-                    assert_attr_kind(attr, &[AttrKind::Command])?;
-
-                    self.force_long_help = true;
-                }
-
-                Some(MagicAttrName::LongHelp) if attr.value.is_none() => {
-                    assert_attr_kind(attr, &[AttrKind::Arg])?;
-
-                    self.force_long_help = true;
-                }
-
-                Some(MagicAttrName::Author) if attr.value.is_none() => {
-                    assert_attr_kind(attr, &[AttrKind::Command])?;
-
-                    if let Some(method) = Method::from_env(attr.name.clone(), "CARGO_PKG_AUTHORS")? {
-                        self.methods.push(method);
-                    }
-                }
-
-                Some(MagicAttrName::Version) if attr.value.is_none() => {
-                    assert_attr_kind(attr, &[AttrKind::Command])?;
-
-                    if let Some(method) = Method::from_env(attr.name.clone(), "CARGO_PKG_VERSION")? {
-                        self.methods.push(method);
-                    }
-                }
-
-                Some(MagicAttrName::DefaultValueT) => {
-                    assert_attr_kind(attr, &[AttrKind::Arg])?;
-
-                    let ty = if let Some(ty) = self.ty.as_ref() {
-                        ty
-                    } else {
-                        abort!(
-                            attr.name.clone(),
-                            "#[arg(default_value_t)] (without an argument) can be used \
-                            only on field level\n\n= note: {note}\n\n",
-
-                            note = "see \
-                                https://github.com/clap-rs/clap/blob/master/examples/derive_ref/README.md#magic-attributes")
-                    };
-
-                    let val = if let Some(expr) = &attr.value {
-                        quote!(#expr)
-                    } else {
-                        quote!(<#ty as ::std::default::Default>::default())
-                    };
-
-                    let val = if attrs
-                        .iter()
-                        .any(|a| a.magic == Some(MagicAttrName::ValueEnum))
-                    {
-                        quote_spanned!(attr.name.clone().span()=> {
-                            static DEFAULT_VALUE: ::std::sync::OnceLock<String> = ::std::sync::OnceLock::new();
-                            let s = DEFAULT_VALUE.get_or_init(|| {
-                                let val: #ty = #val;
-                                clap::ValueEnum::to_possible_value(&val).unwrap().get_name().to_owned()
-                            });
-                            let s: &'static str = &*s;
-                            s
-                        })
-                    } else {
-                        quote_spanned!(attr.name.clone().span()=> {
-                            static DEFAULT_VALUE: ::std::sync::OnceLock<String> = ::std::sync::OnceLock::new();
-                            let s = DEFAULT_VALUE.get_or_init(|| {
-                                let val: #ty = #val;
-                                ::std::string::ToString::to_string(&val)
-                            });
-                            let s: &'static str = &*s;
-                            s
-                        })
-                    };
-
-                    let raw_ident = Ident::new("default_value", attr.name.clone().span());
-                    self.methods.push(Method::new(raw_ident, val));
-                }
-
-                Some(MagicAttrName::DefaultValuesT) => {
-                    assert_attr_kind(attr, &[AttrKind::Arg])?;
-
-                    let ty = if let Some(ty) = self.ty.as_ref() {
-                        ty
-                    } else {
-                        abort!(
-                            attr.name.clone(),
-                            "#[arg(default_values_t)] (without an argument) can be used \
-                            only on field level\n\n= note: {note}\n\n",
-
-                            note = "see \
-                                https://github.com/clap-rs/clap/blob/master/examples/derive_ref/README.md#magic-attributes")
-                    };
-                    let expr = attr.value_or_abort()?;
-
-                    let container_type = Ty::from_syn_ty(ty);
-                    if *container_type != Ty::Vec {
-                        abort!(
-                            attr.name.clone(),
-                            "#[arg(default_values_t)] can be used only on Vec types\n\n= note: {note}\n\n",
-
-                            note = "see \
-                                https://github.com/clap-rs/clap/blob/master/examples/derive_ref/README.md#magic-attributes")
-                    }
-                    let inner_type = inner_type(ty);
-
-                    // Use `Borrow<#inner_type>` so we accept `&Vec<#inner_type>` and
-                    // `Vec<#inner_type>`.
-                    let val = if attrs
-                        .iter()
-                        .any(|a| a.magic == Some(MagicAttrName::ValueEnum))
-                    {
-                        quote_spanned!(attr.name.clone().span()=> {
-                            {
-                                fn iter_to_vals<T>(iterable: impl IntoIterator<Item = T>) -> impl Iterator<Item=String>
-                                where
-                                    T: ::std::borrow::Borrow<#inner_type>
-                                {
-                                    iterable
-                                        .into_iter()
-                                        .map(|val| {
-                                            clap::ValueEnum::to_possible_value(val.borrow()).unwrap().get_name().to_owned()
-                                        })
-                                }
-
-                                static DEFAULT_STRINGS: ::std::sync::OnceLock<Vec<String>> = ::std::sync::OnceLock::new();
-                                static DEFAULT_VALUES: ::std::sync::OnceLock<Vec<&str>> = ::std::sync::OnceLock::new();
-                                DEFAULT_VALUES.get_or_init(|| {
-                                    DEFAULT_STRINGS.get_or_init(|| iter_to_vals(#expr).collect()).iter().map(::std::string::String::as_str).collect()
-                                }).iter().copied()
-                            }
-                        })
-                    } else {
-                        quote_spanned!(attr.name.clone().span()=> {
-                            {
-                                fn iter_to_vals<T>(iterable: impl IntoIterator<Item = T>) -> impl Iterator<Item=String>
-                                where
-                                    T: ::std::borrow::Borrow<#inner_type>
-                                {
-                                    iterable.into_iter().map(|val| val.borrow().to_string())
-                                }
-
-                                static DEFAULT_STRINGS: ::std::sync::OnceLock<Vec<String>> = ::std::sync::OnceLock::new();
-                                static DEFAULT_VALUES: ::std::sync::OnceLock<Vec<&str>> = ::std::sync::OnceLock::new();
-                                DEFAULT_VALUES.get_or_init(|| {
-                                    DEFAULT_STRINGS.get_or_init(|| iter_to_vals(#expr).collect()).iter().map(::std::string::String::as_str).collect()
-                                }).iter().copied()
-                            }
-                        })
-                    };
-
-                    self.methods.push(Method::new(
-                        Ident::new("default_values", attr.name.clone().span()),
-                        val,
-                    ));
-                }
-
-                Some(MagicAttrName::DefaultValueOsT) => {
-                    assert_attr_kind(attr, &[AttrKind::Arg])?;
-
-                    let ty = if let Some(ty) = self.ty.as_ref() {
-                        ty
-                    } else {
-                        abort!(
-                            attr.name.clone(),
-                            "#[arg(default_value_os_t)] (without an argument) can be used \
-                            only on field level\n\n= note: {note}\n\n",
-
-                            note = "see \
-                                https://github.com/clap-rs/clap/blob/master/examples/derive_ref/README.md#magic-attributes")
-                    };
-
-                    let val = if let Some(expr) = &attr.value {
-                        quote!(#expr)
-                    } else {
-                        quote!(<#ty as ::std::default::Default>::default())
-                    };
-
-                    let val = if attrs
-                        .iter()
-                        .any(|a| a.magic == Some(MagicAttrName::ValueEnum))
-                    {
-                        quote_spanned!(attr.name.clone().span()=> {
-                            static DEFAULT_VALUE: ::std::sync::OnceLock<String> = ::std::sync::OnceLock::new();
-                            let s = DEFAULT_VALUE.get_or_init(|| {
-                                let val: #ty = #val;
-                                clap::ValueEnum::to_possible_value(&val).unwrap().get_name().to_owned()
-                            });
-                            let s: &'static str = &*s;
-                            s
-                        })
-                    } else {
-                        quote_spanned!(attr.name.clone().span()=> {
-                            static DEFAULT_VALUE: ::std::sync::OnceLock<::std::ffi::OsString> = ::std::sync::OnceLock::new();
-                            let s = DEFAULT_VALUE.get_or_init(|| {
-                                let val: #ty = #val;
-                                ::std::ffi::OsString::from(val)
-                            });
-                            let s: &'static ::std::ffi::OsStr = &*s;
-                            s
-                        })
-                    };
-
-                    let raw_ident = Ident::new("default_value", attr.name.clone().span());
-                    self.methods.push(Method::new(raw_ident, val));
-                }
-
-                Some(MagicAttrName::DefaultValuesOsT) => {
-                    assert_attr_kind(attr, &[AttrKind::Arg])?;
-
-                    let ty = if let Some(ty) = self.ty.as_ref() {
-                        ty
-                    } else {
-                        abort!(
-                            attr.name.clone(),
-                            "#[arg(default_values_os_t)] (without an argument) can be used \
-                            only on field level\n\n= note: {note}\n\n",
-
-                            note = "see \
-                                https://github.com/clap-rs/clap/blob/master/examples/derive_ref/README.md#magic-attributes")
-                    };
-                    let expr = attr.value_or_abort()?;
-
-                    let container_type = Ty::from_syn_ty(ty);
-                    if *container_type != Ty::Vec {
-                        abort!(
-                            attr.name.clone(),
-                            "#[arg(default_values_os_t)] can be used only on Vec types\n\n= note: {note}\n\n",
-
-                            note = "see \
-                                https://github.com/clap-rs/clap/blob/master/examples/derive_ref/README.md#magic-attributes")
-                    }
-                    let inner_type = inner_type(ty);
-
-                    // Use `Borrow<#inner_type>` so we accept `&Vec<#inner_type>` and
-                    // `Vec<#inner_type>`.
-                    let val = if attrs
-                        .iter()
-                        .any(|a| a.magic == Some(MagicAttrName::ValueEnum))
-                    {
-                        quote_spanned!(attr.name.clone().span()=> {
-                            {
-                                fn iter_to_vals<T>(iterable: impl IntoIterator<Item = T>) -> impl Iterator<Item=::std::ffi::OsString>
-                                where
-                                    T: ::std::borrow::Borrow<#inner_type>
-                                {
-                                    iterable
-                                        .into_iter()
-                                        .map(|val| {
-                                            clap::ValueEnum::to_possible_value(val.borrow()).unwrap().get_name().to_owned().into()
-                                        })
-                                }
-
-                                static DEFAULT_STRINGS: ::std::sync::OnceLock<Vec<::std::ffi::OsString>> = ::std::sync::OnceLock::new();
-                                static DEFAULT_VALUES: ::std::sync::OnceLock<Vec<&::std::ffi::OsStr>> = ::std::sync::OnceLock::new();
-                                DEFAULT_VALUES.get_or_init(|| {
-                                    DEFAULT_STRINGS.get_or_init(|| iter_to_vals(#expr).collect()).iter().map(::std::ffi::OsString::as_os_str).collect()
-                                }).iter().copied()
-                            }
-                        })
-                    } else {
-                        quote_spanned!(attr.name.clone().span()=> {
-                            {
-                                fn iter_to_vals<T>(iterable: impl IntoIterator<Item = T>) -> impl Iterator<Item=::std::ffi::OsString>
-                                where
-                                    T: ::std::borrow::Borrow<#inner_type>
-                                {
-                                    iterable.into_iter().map(|val| val.borrow().into())
-                                }
-
-                                static DEFAULT_STRINGS: ::std::sync::OnceLock<Vec<::std::ffi::OsString>> = ::std::sync::OnceLock::new();
-                                static DEFAULT_VALUES: ::std::sync::OnceLock<Vec<&::std::ffi::OsStr>> = ::std::sync::OnceLock::new();
-                                DEFAULT_VALUES.get_or_init(|| {
-                                    DEFAULT_STRINGS.get_or_init(|| iter_to_vals(#expr).collect()).iter().map(::std::ffi::OsString::as_os_str).collect()
-                                }).iter().copied()
-                            }
-                        })
-                    };
-
-                    self.methods.push(Method::new(
-                        Ident::new("default_values", attr.name.clone().span()),
-                        val,
-                    ));
-                }
-
-                Some(MagicAttrName::NextDisplayOrder) => {
-                    assert_attr_kind(attr, &[AttrKind::Command])?;
-
-                    let expr = attr.value_or_abort()?;
-                    self.next_display_order = Some(Method::new(attr.name.clone(), quote!(#expr)));
-                }
-
-                Some(MagicAttrName::NextHelpHeading) => {
-                    assert_attr_kind(attr, &[AttrKind::Command])?;
-
-                    let expr = attr.value_or_abort()?;
-                    self.next_help_heading = Some(Method::new(attr.name.clone(), quote!(#expr)));
-                }
-
-                Some(MagicAttrName::RenameAll) => {
-                    let lit = attr.lit_str_or_abort()?;
-                    self.casing = CasingStyle::from_lit(lit)?;
-                }
-
-                Some(MagicAttrName::RenameAllEnv) => {
-                    assert_attr_kind(attr, &[AttrKind::Command, AttrKind::Arg])?;
-
-                    let lit = attr.lit_str_or_abort()?;
-                    self.env_casing = CasingStyle::from_lit(lit)?;
-                }
-
-                Some(MagicAttrName::Skip) if actual_attr_kind == AttrKind::Group => {
-                    self.skip_group = true;
-                }
-
-                None
-                // Magic only for the default, otherwise just forward to the builder
-                | Some(MagicAttrName::Short)
-                | Some(MagicAttrName::Long)
-                | Some(MagicAttrName::Env)
-                | Some(MagicAttrName::About)
-                | Some(MagicAttrName::LongAbout)
-                | Some(MagicAttrName::LongHelp)
-                | Some(MagicAttrName::Author)
-                | Some(MagicAttrName::Version)
-                 => {
-                    let expr = attr.value_or_abort()?;
-                    self.push_method(*attr.kind.get(), attr.name.clone(), expr);
-                }
-
-                // Magic only for the default, otherwise just forward to the builder
-                Some(MagicAttrName::ValueParser) | Some(MagicAttrName::Action) => {
-                    let expr = attr.value_or_abort()?;
-                    self.push_method(*attr.kind.get(), attr.name.clone(), expr);
-                }
-
-                // Directives that never receive a value
-                Some(MagicAttrName::ValueEnum)
-                | Some(MagicAttrName::VerbatimDocComment) => {
-                    let expr = attr.value_or_abort()?;
-                    abort!(expr, "attribute `{}` does not accept a value", attr.name);
-                }
-
-                // Kinds
-                Some(MagicAttrName::FromGlobal)
-                | Some(MagicAttrName::Subcommand)
-                | Some(MagicAttrName::ExternalSubcommand)
-                | Some(MagicAttrName::Flatten)
-                | Some(MagicAttrName::Skip) => {
-                }
-            }
-        }
-
-        if self.has_explicit_methods() {
-            if let Kind::Skip(_, attr) = &*self.kind {
-                abort!(
-                    self.methods[0].name.span(),
-                    "`{}` cannot be used with `#[{}(skip)]",
-                    self.methods[0].name,
-                    attr.as_str(),
-                );
-            }
-            if let Kind::FromGlobal(_) = &*self.kind {
-                abort!(
-                    self.methods[0].name.span(),
-                    "`{}` cannot be used with `#[arg(from_global)]",
-                    self.methods[0].name,
-                );
-            }
-        }
-
-        Ok(())
-    }
-
-    fn push_doc_comment(&mut self, attrs: &[Attribute], short_name: &str, long_name: Option<&str>) {
-        let lines = extract_doc_comment(attrs);
-
-        if !lines.is_empty() {
-            let (short_help, long_help) =
-                format_doc_comment(&lines, !self.verbatim_doc_comment, self.force_long_help);
-            let short_name = format_ident!("{short_name}");
-            let short = Method::new(
-                short_name,
-                short_help
-                    .map(|h| quote!(#h))
-                    .unwrap_or_else(|| quote!(None)),
-            );
-            self.doc_comment.push(short);
-            if let Some(long_name) = long_name {
-                let long_name = format_ident!("{long_name}");
-                let long = Method::new(
-                    long_name,
-                    long_help
-                        .map(|h| quote!(#h))
-                        .unwrap_or_else(|| quote!(None)),
-                );
-                self.doc_comment.push(long);
-            }
-        }
-    }
-
-    fn set_kind(&mut self, kind: Sp<Kind>) -> Result<(), syn::Error> {
-        match (self.kind.get(), kind.get()) {
-            (Kind::Arg(_), Kind::FromGlobal(_))
-            | (Kind::Arg(_), Kind::Subcommand(_))
-            | (Kind::Arg(_), Kind::Flatten(_))
-            | (Kind::Arg(_), Kind::Skip(_, _))
-            | (Kind::Command(_), Kind::Subcommand(_))
-            | (Kind::Command(_), Kind::Flatten(_))
-            | (Kind::Command(_), Kind::Skip(_, _))
-            | (Kind::Command(_), Kind::ExternalSubcommand)
-            | (Kind::Value, Kind::Skip(_, _)) => {
-                self.kind = kind;
-            }
-
-            (_, _) => {
-                let old = self.kind.name();
-                let new = kind.name();
-                abort!(kind.span(), "`{new}` cannot be used with `{old}`");
-            }
-        }
-        Ok(())
-    }
-
-    pub fn find_default_method(&self) -> Option<&Method> {
-        self.methods
-            .iter()
-            .find(|m| m.name == "default_value" || m.name == "default_value_os")
-    }
-
-    /// generate methods from attributes on top of struct or enum
-    pub fn initial_top_level_methods(&self) -> TokenStream {
-        let next_display_order = self.next_display_order.as_ref().into_iter();
-        let next_help_heading = self.next_help_heading.as_ref().into_iter();
-        quote!(
-            #(#next_display_order)*
-            #(#next_help_heading)*
-        )
-    }
-
-    pub fn final_top_level_methods(&self) -> TokenStream {
-        let methods = &self.methods;
-        let doc_comment = &self.doc_comment;
-
-        quote!( #(#doc_comment)* #(#methods)*)
-    }
-
-    /// generate methods on top of a field
-    pub fn field_methods(&self) -> proc_macro2::TokenStream {
-        let methods = &self.methods;
-        let doc_comment = &self.doc_comment;
-        quote!( #(#doc_comment)* #(#methods)* )
-    }
-
-    pub fn group_id(&self) -> TokenStream {
-        self.group_id.clone().raw()
-    }
-
-    pub fn group_methods(&self) -> TokenStream {
-        let group_methods = &self.group_methods;
-        quote!( #(#group_methods)* )
-    }
-
-    pub fn deprecations(&self) -> proc_macro2::TokenStream {
-        let deprecations = &self.deprecations;
-        quote!( #(#deprecations)* )
-    }
-
-    pub fn next_display_order(&self) -> TokenStream {
-        let next_display_order = self.next_display_order.as_ref().into_iter();
-        quote!( #(#next_display_order)* )
-    }
-
-    pub fn next_help_heading(&self) -> TokenStream {
-        let next_help_heading = self.next_help_heading.as_ref().into_iter();
-        quote!( #(#next_help_heading)* )
-    }
-
-    pub fn id(&self) -> TokenStream {
-        self.name.clone().raw()
-    }
-
-    pub fn cased_name(&self) -> TokenStream {
-        self.name.clone().translate(*self.casing)
-    }
-
-    pub fn value_name(&self) -> TokenStream {
-        self.name.clone().translate(CasingStyle::ScreamingSnake)
-    }
-
-    pub fn value_parser(&self, field_type: &Type) -> Method {
-        self.value_parser
-            .clone()
-            .map(|p| {
-                let inner_type = inner_type(field_type);
-                p.resolve(inner_type)
-            })
-            .unwrap_or_else(|| {
-                let inner_type = inner_type(field_type);
-                if let Some(action) = self.action.as_ref() {
-                    let span = action.span();
-                    default_value_parser(inner_type, span)
-                } else {
-                    let span = self
-                        .action
-                        .as_ref()
-                        .map(|a| a.span())
-                        .unwrap_or_else(|| self.kind.span());
-                    default_value_parser(inner_type, span)
-                }
-            })
-    }
-
-    pub fn action(&self, field_type: &Type) -> Method {
-        self.action
-            .clone()
-            .map(|p| p.resolve(field_type))
-            .unwrap_or_else(|| {
-                if let Some(value_parser) = self.value_parser.as_ref() {
-                    let span = value_parser.span();
-                    default_action(field_type, span)
-                } else {
-                    let span = self
-                        .value_parser
-                        .as_ref()
-                        .map(|a| a.span())
-                        .unwrap_or_else(|| self.kind.span());
-                    default_action(field_type, span)
-                }
-            })
-    }
-
-    pub fn kind(&self) -> Sp<Kind> {
-        self.kind.clone()
-    }
-
-    pub fn is_positional(&self) -> bool {
-        self.is_positional
-    }
-
-    pub fn casing(&self) -> Sp<CasingStyle> {
-        self.casing
-    }
-
-    pub fn env_casing(&self) -> Sp<CasingStyle> {
-        self.env_casing
-    }
-
-    pub fn has_explicit_methods(&self) -> bool {
-        self.methods
-            .iter()
-            .any(|m| m.name != "help" && m.name != "long_help")
-    }
-
-    pub fn skip_group(&self) -> bool {
-        self.skip_group
-    }
-}
-
-#[derive(Clone)]
-enum ValueParser {
-    Explicit(Method),
-    Implicit(Ident),
-}
-
-impl ValueParser {
-    fn resolve(self, _inner_type: &Type) -> Method {
-        match self {
-            Self::Explicit(method) => method,
-            Self::Implicit(ident) => default_value_parser(_inner_type, ident.span()),
-        }
-    }
-
-    fn span(&self) -> Span {
-        match self {
-            Self::Explicit(method) => method.name.span(),
-            Self::Implicit(ident) => ident.span(),
-        }
-    }
-}
-
-fn default_value_parser(inner_type: &Type, span: Span) -> Method {
-    let func = Ident::new("value_parser", span);
-    Method::new(
-        func,
-        quote_spanned! { span=>
-            clap::value_parser!(#inner_type)
-        },
-    )
-}
-
-#[derive(Clone)]
-pub enum Action {
-    Explicit(Method),
-    Implicit(Ident),
-}
-
-impl Action {
-    pub fn resolve(self, _field_type: &Type) -> Method {
-        match self {
-            Self::Explicit(method) => method,
-            Self::Implicit(ident) => default_action(_field_type, ident.span()),
-        }
-    }
-
-    pub fn span(&self) -> Span {
-        match self {
-            Self::Explicit(method) => method.name.span(),
-            Self::Implicit(ident) => ident.span(),
-        }
-    }
-}
-
-fn default_action(field_type: &Type, span: Span) -> Method {
-    let ty = Ty::from_syn_ty(field_type);
-    let args = match *ty {
-        Ty::Vec | Ty::OptionVec | Ty::VecVec | Ty::OptionVecVec => {
-            quote_spanned! { span=>
-                clap::ArgAction::Append
-            }
-        }
-        Ty::Option | Ty::OptionOption => {
-            quote_spanned! { span=>
-                clap::ArgAction::Set
-            }
-        }
-        _ => {
-            if is_simple_ty(field_type, "bool") {
-                quote_spanned! { span=>
-                    clap::ArgAction::SetTrue
-                }
-            } else {
-                quote_spanned! { span=>
-                    clap::ArgAction::Set
-                }
-            }
-        }
-    };
-
-    let func = Ident::new("action", span);
-    Method::new(func, args)
-}
-
-#[allow(clippy::large_enum_variant)]
-#[derive(Clone)]
-pub enum Kind {
-    Arg(Sp<Ty>),
-    Command(Sp<Ty>),
-    Value,
-    FromGlobal(Sp<Ty>),
-    Subcommand(Sp<Ty>),
-    Flatten(Sp<Ty>),
-    Skip(Option<AttrValue>, AttrKind),
-    ExternalSubcommand,
-}
-
-impl Kind {
-    pub fn name(&self) -> &'static str {
-        match self {
-            Self::Arg(_) => "arg",
-            Self::Command(_) => "command",
-            Self::Value => "value",
-            Self::FromGlobal(_) => "from_global",
-            Self::Subcommand(_) => "subcommand",
-            Self::Flatten(_) => "flatten",
-            Self::Skip(_, _) => "skip",
-            Self::ExternalSubcommand => "external_subcommand",
-        }
-    }
-
-    pub fn attr_kind(&self) -> AttrKind {
-        match self {
-            Self::Arg(_) => AttrKind::Arg,
-            Self::Command(_) => AttrKind::Command,
-            Self::Value => AttrKind::Value,
-            Self::FromGlobal(_) => AttrKind::Arg,
-            Self::Subcommand(_) => AttrKind::Command,
-            Self::Flatten(_) => AttrKind::Command,
-            Self::Skip(_, kind) => *kind,
-            Self::ExternalSubcommand => AttrKind::Command,
-        }
-    }
-
-    pub fn ty(&self) -> Option<&Sp<Ty>> {
-        match self {
-            Self::Arg(ty)
-            | Self::Command(ty)
-            | Self::Flatten(ty)
-            | Self::FromGlobal(ty)
-            | Self::Subcommand(ty) => Some(ty),
-            Self::Value | Self::Skip(_, _) | Self::ExternalSubcommand => None,
-        }
-    }
-}
-
-#[derive(Clone)]
-pub struct Method {
-    name: Ident,
-    args: TokenStream,
-}
-
-impl Method {
-    pub fn new(name: Ident, args: TokenStream) -> Self {
-        Method { name, args }
-    }
-
-    fn from_env(ident: Ident, env_var: &str) -> Result<Option<Self>, syn::Error> {
-        let mut lit = match env::var(env_var) {
-            Ok(val) => {
-                if val.is_empty() {
-                    return Ok(None);
-                }
-                LitStr::new(&val, ident.span())
-            }
-            Err(_) => {
-                abort!(
-                    ident,
-                    "cannot derive `{}` from Cargo.toml\n\n= note: {note}\n\n= help: {help}\n\n",
-                    ident,
-                    note = format_args!("`{env_var}` environment variable is not set"),
-                    help = format_args!("use `{ident} = \"...\"` to set {ident} manually")
-                );
-            }
-        };
-
-        if ident == "author" {
-            let edited = process_author_str(&lit.value());
-            lit = LitStr::new(&edited, lit.span());
-        }
-
-        Ok(Some(Method::new(ident, quote!(#lit))))
-    }
-
-    pub(crate) fn args(&self) -> &TokenStream {
-        &self.args
-    }
-}
-
-impl ToTokens for Method {
-    fn to_tokens(&self, ts: &mut proc_macro2::TokenStream) {
-        let Method { ref name, ref args } = self;
-
-        let tokens = quote!( .#name(#args) );
-
-        tokens.to_tokens(ts);
-    }
-}
-
-#[derive(Clone)]
-pub struct Deprecation {
-    pub span: Span,
-    pub id: &'static str,
-    pub version: &'static str,
-    pub description: String,
-}
-
-impl Deprecation {
-    fn attribute(version: &'static str, old: AttrKind, new: AttrKind, span: Span) -> Self {
-        Self {
-            span,
-            id: "old_attribute",
-            version,
-            description: format!(
-                "Attribute `#[{}(...)]` has been deprecated in favor of `#[{}(...)]`",
-                old.as_str(),
-                new.as_str()
-            ),
-        }
-    }
-}
-
-impl ToTokens for Deprecation {
-    fn to_tokens(&self, ts: &mut proc_macro2::TokenStream) {
-        let tokens = if cfg!(feature = "deprecated") {
-            let Deprecation {
-                span,
-                id,
-                version,
-                description,
-            } = self;
-            let span = *span;
-            let id = Ident::new(id, span);
-
-            quote_spanned!(span=> {
-                #[deprecated(since = #version, note = #description)]
-                fn #id() {}
-                #id();
-            })
-        } else {
-            quote!()
-        };
-
-        tokens.to_tokens(ts);
-    }
-}
-
-fn assert_attr_kind(attr: &ClapAttr, possible_kind: &[AttrKind]) -> Result<(), syn::Error> {
-    if *attr.kind.get() == AttrKind::Clap || *attr.kind.get() == AttrKind::StructOpt {
-        // deprecated
-    } else if !possible_kind.contains(attr.kind.get()) {
-        let options = possible_kind
-            .iter()
-            .map(|k| format!("`#[{}({})]`", k.as_str(), attr.name))
-            .collect::<Vec<_>>();
-        abort!(
-            attr.name,
-            "Unknown `#[{}({})]` attribute ({} exists)",
-            attr.kind.as_str(),
-            attr.name,
-            options.join(", ")
-        );
-    }
-    Ok(())
-}
-
-/// replace all `:` with `, ` when not inside the `<>`
-///
-/// `"author1:author2:author3" => "author1, author2, author3"`
-/// `"author1 <http://website1.com>:author2" => "author1 <http://website1.com>, author2"
-fn process_author_str(author: &str) -> String {
-    let mut res = String::with_capacity(author.len());
-    let mut inside_angle_braces = 0usize;
-
-    for ch in author.chars() {
-        if inside_angle_braces > 0 && ch == '>' {
-            inside_angle_braces -= 1;
-            res.push(ch);
-        } else if ch == '<' {
-            inside_angle_braces += 1;
-            res.push(ch);
-        } else if inside_angle_braces == 0 && ch == ':' {
-            res.push_str(", ");
-        } else {
-            res.push(ch);
-        }
-    }
-
-    res
-}
-
-/// Defines the casing for the attributes long representation.
-#[derive(Copy, Clone, Debug, PartialEq, Eq)]
-pub enum CasingStyle {
-    /// Indicate word boundaries with uppercase letter, excluding the first word.
-    Camel,
-    /// Keep all letters lowercase and indicate word boundaries with hyphens.
-    Kebab,
-    /// Indicate word boundaries with uppercase letter, including the first word.
-    Pascal,
-    /// Keep all letters uppercase and indicate word boundaries with underscores.
-    ScreamingSnake,
-    /// Keep all letters lowercase and indicate word boundaries with underscores.
-    Snake,
-    /// Keep all letters lowercase and remove word boundaries.
-    Lower,
-    /// Keep all letters uppercase and remove word boundaries.
-    Upper,
-    /// Use the original attribute name defined in the code.
-    Verbatim,
-}
-
-impl CasingStyle {
-    fn from_lit(name: &LitStr) -> Result<Sp<Self>, syn::Error> {
-        use self::CasingStyle::*;
-
-        let normalized = name.value().to_upper_camel_case().to_lowercase();
-        let cs = |kind| Sp::new(kind, name.span());
-
-        let s = match normalized.as_ref() {
-            "camel" | "camelcase" => cs(Camel),
-            "kebab" | "kebabcase" => cs(Kebab),
-            "pascal" | "pascalcase" => cs(Pascal),
-            "screamingsnake" | "screamingsnakecase" => cs(ScreamingSnake),
-            "snake" | "snakecase" => cs(Snake),
-            "lower" | "lowercase" => cs(Lower),
-            "upper" | "uppercase" => cs(Upper),
-            "verbatim" | "verbatimcase" => cs(Verbatim),
-            s => abort!(name, "unsupported casing: `{s}`"),
-        };
-        Ok(s)
-    }
-}
-
-#[derive(Clone)]
-pub enum Name {
-    Derived(Ident),
-    Assigned(TokenStream),
-}
-
-impl Name {
-    pub fn raw(self) -> TokenStream {
-        match self {
-            Name::Assigned(tokens) => tokens,
-            Name::Derived(ident) => {
-                let s = ident.unraw().to_string();
-                quote_spanned!(ident.span()=> #s)
-            }
-        }
-    }
-
-    pub fn translate(self, style: CasingStyle) -> TokenStream {
-        use CasingStyle::*;
-
-        match self {
-            Name::Assigned(tokens) => tokens,
-            Name::Derived(ident) => {
-                let s = ident.unraw().to_string();
-                let s = match style {
-                    Pascal => s.to_upper_camel_case(),
-                    Kebab => s.to_kebab_case(),
-                    Camel => s.to_lower_camel_case(),
-                    ScreamingSnake => s.to_shouty_snake_case(),
-                    Snake => s.to_snake_case(),
-                    Lower => s.to_snake_case().replace('_', ""),
-                    Upper => s.to_shouty_snake_case().replace('_', ""),
-                    Verbatim => s,
-                };
-                quote_spanned!(ident.span()=> #s)
-            }
-        }
-    }
-
-    pub fn translate_char(self, style: CasingStyle) -> TokenStream {
-        use CasingStyle::*;
-
-        match self {
-            Name::Assigned(tokens) => quote!( (#tokens).chars().next().unwrap() ),
-            Name::Derived(ident) => {
-                let s = ident.unraw().to_string();
-                let s = match style {
-                    Pascal => s.to_upper_camel_case(),
-                    Kebab => s.to_kebab_case(),
-                    Camel => s.to_lower_camel_case(),
-                    ScreamingSnake => s.to_shouty_snake_case(),
-                    Snake => s.to_snake_case(),
-                    Lower => s.to_snake_case(),
-                    Upper => s.to_shouty_snake_case(),
-                    Verbatim => s,
-                };
-
-                let s = s.chars().next().unwrap();
-                quote_spanned!(ident.span()=> #s)
-            }
-        }
-    }
-}