Deleted vendor folder

1 files changed, 0 insertions, 562 deletions

diff --git a/vendor/thiserror-impl/src/expand.rs b/vendor/thiserror-impl/src/expand.rs
deleted file mode 100644
index 1b44513..0000000
--- a/vendor/thiserror-impl/src/expand.rs
+++ /dev/null
@@ -1,562 +0,0 @@
-use crate::ast::{Enum, Field, Input, Struct};
-use crate::attr::Trait;
-use crate::generics::InferredBounds;
-use crate::span::MemberSpan;
-use proc_macro2::TokenStream;
-use quote::{format_ident, quote, quote_spanned, ToTokens};
-use std::collections::BTreeSet as Set;
-use syn::{DeriveInput, GenericArgument, Member, PathArguments, Result, Token, Type};
-
-pub fn derive(input: &DeriveInput) -> TokenStream {
-    match try_expand(input) {
-        Ok(expanded) => expanded,
-        // If there are invalid attributes in the input, expand to an Error impl
-        // anyway to minimize spurious knock-on errors in other code that uses
-        // this type as an Error.
-        Err(error) => fallback(input, error),
-    }
-}
-
-fn try_expand(input: &DeriveInput) -> Result<TokenStream> {
-    let input = Input::from_syn(input)?;
-    input.validate()?;
-    Ok(match input {
-        Input::Struct(input) => impl_struct(input),
-        Input::Enum(input) => impl_enum(input),
-    })
-}
-
-fn fallback(input: &DeriveInput, error: syn::Error) -> TokenStream {
-    let ty = &input.ident;
-    let (impl_generics, ty_generics, where_clause) = input.generics.split_for_impl();
-
-    let error = error.to_compile_error();
-
-    quote! {
-        #error
-
-        #[allow(unused_qualifications)]
-        impl #impl_generics std::error::Error for #ty #ty_generics #where_clause
-        where
-            // Work around trivial bounds being unstable.
-            // https://github.com/rust-lang/rust/issues/48214
-            for<'workaround> #ty #ty_generics: ::core::fmt::Debug,
-        {}
-
-        #[allow(unused_qualifications)]
-        impl #impl_generics ::core::fmt::Display for #ty #ty_generics #where_clause {
-            fn fmt(&self, __formatter: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
-                ::core::unreachable!()
-            }
-        }
-    }
-}
-
-fn impl_struct(input: Struct) -> TokenStream {
-    let ty = &input.ident;
-    let (impl_generics, ty_generics, where_clause) = input.generics.split_for_impl();
-    let mut error_inferred_bounds = InferredBounds::new();
-
-    let source_body = if let Some(transparent_attr) = &input.attrs.transparent {
-        let only_field = &input.fields[0];
-        if only_field.contains_generic {
-            error_inferred_bounds.insert(only_field.ty, quote!(std::error::Error));
-        }
-        let member = &only_field.member;
-        Some(quote_spanned! {transparent_attr.span=>
-            std::error::Error::source(self.#member.as_dyn_error())
-        })
-    } else if let Some(source_field) = input.source_field() {
-        let source = &source_field.member;
-        if source_field.contains_generic {
-            let ty = unoptional_type(source_field.ty);
-            error_inferred_bounds.insert(ty, quote!(std::error::Error + 'static));
-        }
-        let asref = if type_is_option(source_field.ty) {
-            Some(quote_spanned!(source.member_span()=> .as_ref()?))
-        } else {
-            None
-        };
-        let dyn_error = quote_spanned! {source_field.source_span()=>
-            self.#source #asref.as_dyn_error()
-        };
-        Some(quote! {
-            ::core::option::Option::Some(#dyn_error)
-        })
-    } else {
-        None
-    };
-    let source_method = source_body.map(|body| {
-        quote! {
-            fn source(&self) -> ::core::option::Option<&(dyn std::error::Error + 'static)> {
-                use thiserror::__private::AsDynError as _;
-                #body
-            }
-        }
-    });
-
-    let provide_method = input.backtrace_field().map(|backtrace_field| {
-        let request = quote!(request);
-        let backtrace = &backtrace_field.member;
-        let body = if let Some(source_field) = input.source_field() {
-            let source = &source_field.member;
-            let source_provide = if type_is_option(source_field.ty) {
-                quote_spanned! {source.member_span()=>
-                    if let ::core::option::Option::Some(source) = &self.#source {
-                        source.thiserror_provide(#request);
-                    }
-                }
-            } else {
-                quote_spanned! {source.member_span()=>
-                    self.#source.thiserror_provide(#request);
-                }
-            };
-            let self_provide = if source == backtrace {
-                None
-            } else if type_is_option(backtrace_field.ty) {
-                Some(quote! {
-                    if let ::core::option::Option::Some(backtrace) = &self.#backtrace {
-                        #request.provide_ref::<std::backtrace::Backtrace>(backtrace);
-                    }
-                })
-            } else {
-                Some(quote! {
-                    #request.provide_ref::<std::backtrace::Backtrace>(&self.#backtrace);
-                })
-            };
-            quote! {
-                use thiserror::__private::ThiserrorProvide as _;
-                #source_provide
-                #self_provide
-            }
-        } else if type_is_option(backtrace_field.ty) {
-            quote! {
-                if let ::core::option::Option::Some(backtrace) = &self.#backtrace {
-                    #request.provide_ref::<std::backtrace::Backtrace>(backtrace);
-                }
-            }
-        } else {
-            quote! {
-                #request.provide_ref::<std::backtrace::Backtrace>(&self.#backtrace);
-            }
-        };
-        quote! {
-            fn provide<'_request>(&'_request self, #request: &mut std::error::Request<'_request>) {
-                #body
-            }
-        }
-    });
-
-    let mut display_implied_bounds = Set::new();
-    let display_body = if input.attrs.transparent.is_some() {
-        let only_field = &input.fields[0].member;
-        display_implied_bounds.insert((0, Trait::Display));
-        Some(quote! {
-            ::core::fmt::Display::fmt(&self.#only_field, __formatter)
-        })
-    } else if let Some(display) = &input.attrs.display {
-        display_implied_bounds = display.implied_bounds.clone();
-        let use_as_display = use_as_display(display.has_bonus_display);
-        let pat = fields_pat(&input.fields);
-        Some(quote! {
-            #use_as_display
-            #[allow(unused_variables, deprecated)]
-            let Self #pat = self;
-            #display
-        })
-    } else {
-        None
-    };
-    let display_impl = display_body.map(|body| {
-        let mut display_inferred_bounds = InferredBounds::new();
-        for (field, bound) in display_implied_bounds {
-            let field = &input.fields[field];
-            if field.contains_generic {
-                display_inferred_bounds.insert(field.ty, bound);
-            }
-        }
-        let display_where_clause = display_inferred_bounds.augment_where_clause(input.generics);
-        quote! {
-            #[allow(unused_qualifications)]
-            impl #impl_generics ::core::fmt::Display for #ty #ty_generics #display_where_clause {
-                #[allow(clippy::used_underscore_binding)]
-                fn fmt(&self, __formatter: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
-                    #body
-                }
-            }
-        }
-    });
-
-    let from_impl = input.from_field().map(|from_field| {
-        let backtrace_field = input.distinct_backtrace_field();
-        let from = unoptional_type(from_field.ty);
-        let body = from_initializer(from_field, backtrace_field);
-        quote! {
-            #[allow(unused_qualifications)]
-            impl #impl_generics ::core::convert::From<#from> for #ty #ty_generics #where_clause {
-                #[allow(deprecated)]
-                fn from(source: #from) -> Self {
-                    #ty #body
-                }
-            }
-        }
-    });
-
-    if input.generics.type_params().next().is_some() {
-        let self_token = <Token![Self]>::default();
-        error_inferred_bounds.insert(self_token, Trait::Debug);
-        error_inferred_bounds.insert(self_token, Trait::Display);
-    }
-    let error_where_clause = error_inferred_bounds.augment_where_clause(input.generics);
-
-    quote! {
-        #[allow(unused_qualifications)]
-        impl #impl_generics std::error::Error for #ty #ty_generics #error_where_clause {
-            #source_method
-            #provide_method
-        }
-        #display_impl
-        #from_impl
-    }
-}
-
-fn impl_enum(input: Enum) -> TokenStream {
-    let ty = &input.ident;
-    let (impl_generics, ty_generics, where_clause) = input.generics.split_for_impl();
-    let mut error_inferred_bounds = InferredBounds::new();
-
-    let source_method = if input.has_source() {
-        let arms = input.variants.iter().map(|variant| {
-            let ident = &variant.ident;
-            if let Some(transparent_attr) = &variant.attrs.transparent {
-                let only_field = &variant.fields[0];
-                if only_field.contains_generic {
-                    error_inferred_bounds.insert(only_field.ty, quote!(std::error::Error));
-                }
-                let member = &only_field.member;
-                let source = quote_spanned! {transparent_attr.span=>
-                    std::error::Error::source(transparent.as_dyn_error())
-                };
-                quote! {
-                    #ty::#ident {#member: transparent} => #source,
-                }
-            } else if let Some(source_field) = variant.source_field() {
-                let source = &source_field.member;
-                if source_field.contains_generic {
-                    let ty = unoptional_type(source_field.ty);
-                    error_inferred_bounds.insert(ty, quote!(std::error::Error + 'static));
-                }
-                let asref = if type_is_option(source_field.ty) {
-                    Some(quote_spanned!(source.member_span()=> .as_ref()?))
-                } else {
-                    None
-                };
-                let varsource = quote!(source);
-                let dyn_error = quote_spanned! {source_field.source_span()=>
-                    #varsource #asref.as_dyn_error()
-                };
-                quote! {
-                    #ty::#ident {#source: #varsource, ..} => ::core::option::Option::Some(#dyn_error),
-                }
-            } else {
-                quote! {
-                    #ty::#ident {..} => ::core::option::Option::None,
-                }
-            }
-        });
-        Some(quote! {
-            fn source(&self) -> ::core::option::Option<&(dyn std::error::Error + 'static)> {
-                use thiserror::__private::AsDynError as _;
-                #[allow(deprecated)]
-                match self {
-                    #(#arms)*
-                }
-            }
-        })
-    } else {
-        None
-    };
-
-    let provide_method = if input.has_backtrace() {
-        let request = quote!(request);
-        let arms = input.variants.iter().map(|variant| {
-            let ident = &variant.ident;
-            match (variant.backtrace_field(), variant.source_field()) {
-                (Some(backtrace_field), Some(source_field))
-                    if backtrace_field.attrs.backtrace.is_none() =>
-                {
-                    let backtrace = &backtrace_field.member;
-                    let source = &source_field.member;
-                    let varsource = quote!(source);
-                    let source_provide = if type_is_option(source_field.ty) {
-                        quote_spanned! {source.member_span()=>
-                            if let ::core::option::Option::Some(source) = #varsource {
-                                source.thiserror_provide(#request);
-                            }
-                        }
-                    } else {
-                        quote_spanned! {source.member_span()=>
-                            #varsource.thiserror_provide(#request);
-                        }
-                    };
-                    let self_provide = if type_is_option(backtrace_field.ty) {
-                        quote! {
-                            if let ::core::option::Option::Some(backtrace) = backtrace {
-                                #request.provide_ref::<std::backtrace::Backtrace>(backtrace);
-                            }
-                        }
-                    } else {
-                        quote! {
-                            #request.provide_ref::<std::backtrace::Backtrace>(backtrace);
-                        }
-                    };
-                    quote! {
-                        #ty::#ident {
-                            #backtrace: backtrace,
-                            #source: #varsource,
-                            ..
-                        } => {
-                            use thiserror::__private::ThiserrorProvide as _;
-                            #source_provide
-                            #self_provide
-                        }
-                    }
-                }
-                (Some(backtrace_field), Some(source_field))
-                    if backtrace_field.member == source_field.member =>
-                {
-                    let backtrace = &backtrace_field.member;
-                    let varsource = quote!(source);
-                    let source_provide = if type_is_option(source_field.ty) {
-                        quote_spanned! {backtrace.member_span()=>
-                            if let ::core::option::Option::Some(source) = #varsource {
-                                source.thiserror_provide(#request);
-                            }
-                        }
-                    } else {
-                        quote_spanned! {backtrace.member_span()=>
-                            #varsource.thiserror_provide(#request);
-                        }
-                    };
-                    quote! {
-                        #ty::#ident {#backtrace: #varsource, ..} => {
-                            use thiserror::__private::ThiserrorProvide as _;
-                            #source_provide
-                        }
-                    }
-                }
-                (Some(backtrace_field), _) => {
-                    let backtrace = &backtrace_field.member;
-                    let body = if type_is_option(backtrace_field.ty) {
-                        quote! {
-                            if let ::core::option::Option::Some(backtrace) = backtrace {
-                                #request.provide_ref::<std::backtrace::Backtrace>(backtrace);
-                            }
-                        }
-                    } else {
-                        quote! {
-                            #request.provide_ref::<std::backtrace::Backtrace>(backtrace);
-                        }
-                    };
-                    quote! {
-                        #ty::#ident {#backtrace: backtrace, ..} => {
-                            #body
-                        }
-                    }
-                }
-                (None, _) => quote! {
-                    #ty::#ident {..} => {}
-                },
-            }
-        });
-        Some(quote! {
-            fn provide<'_request>(&'_request self, #request: &mut std::error::Request<'_request>) {
-                #[allow(deprecated)]
-                match self {
-                    #(#arms)*
-                }
-            }
-        })
-    } else {
-        None
-    };
-
-    let display_impl = if input.has_display() {
-        let mut display_inferred_bounds = InferredBounds::new();
-        let has_bonus_display = input.variants.iter().any(|v| {
-            v.attrs
-                .display
-                .as_ref()
-                .map_or(false, |display| display.has_bonus_display)
-        });
-        let use_as_display = use_as_display(has_bonus_display);
-        let void_deref = if input.variants.is_empty() {
-            Some(quote!(*))
-        } else {
-            None
-        };
-        let arms = input.variants.iter().map(|variant| {
-            let mut display_implied_bounds = Set::new();
-            let display = match &variant.attrs.display {
-                Some(display) => {
-                    display_implied_bounds = display.implied_bounds.clone();
-                    display.to_token_stream()
-                }
-                None => {
-                    let only_field = match &variant.fields[0].member {
-                        Member::Named(ident) => ident.clone(),
-                        Member::Unnamed(index) => format_ident!("_{}", index),
-                    };
-                    display_implied_bounds.insert((0, Trait::Display));
-                    quote!(::core::fmt::Display::fmt(#only_field, __formatter))
-                }
-            };
-            for (field, bound) in display_implied_bounds {
-                let field = &variant.fields[field];
-                if field.contains_generic {
-                    display_inferred_bounds.insert(field.ty, bound);
-                }
-            }
-            let ident = &variant.ident;
-            let pat = fields_pat(&variant.fields);
-            quote! {
-                #ty::#ident #pat => #display
-            }
-        });
-        let arms = arms.collect::<Vec<_>>();
-        let display_where_clause = display_inferred_bounds.augment_where_clause(input.generics);
-        Some(quote! {
-            #[allow(unused_qualifications)]
-            impl #impl_generics ::core::fmt::Display for #ty #ty_generics #display_where_clause {
-                fn fmt(&self, __formatter: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
-                    #use_as_display
-                    #[allow(unused_variables, deprecated, clippy::used_underscore_binding)]
-                    match #void_deref self {
-                        #(#arms,)*
-                    }
-                }
-            }
-        })
-    } else {
-        None
-    };
-
-    let from_impls = input.variants.iter().filter_map(|variant| {
-        let from_field = variant.from_field()?;
-        let backtrace_field = variant.distinct_backtrace_field();
-        let variant = &variant.ident;
-        let from = unoptional_type(from_field.ty);
-        let body = from_initializer(from_field, backtrace_field);
-        Some(quote! {
-            #[allow(unused_qualifications)]
-            impl #impl_generics ::core::convert::From<#from> for #ty #ty_generics #where_clause {
-                #[allow(deprecated)]
-                fn from(source: #from) -> Self {
-                    #ty::#variant #body
-                }
-            }
-        })
-    });
-
-    if input.generics.type_params().next().is_some() {
-        let self_token = <Token![Self]>::default();
-        error_inferred_bounds.insert(self_token, Trait::Debug);
-        error_inferred_bounds.insert(self_token, Trait::Display);
-    }
-    let error_where_clause = error_inferred_bounds.augment_where_clause(input.generics);
-
-    quote! {
-        #[allow(unused_qualifications)]
-        impl #impl_generics std::error::Error for #ty #ty_generics #error_where_clause {
-            #source_method
-            #provide_method
-        }
-        #display_impl
-        #(#from_impls)*
-    }
-}
-
-fn fields_pat(fields: &[Field]) -> TokenStream {
-    let mut members = fields.iter().map(|field| &field.member).peekable();
-    match members.peek() {
-        Some(Member::Named(_)) => quote!({ #(#members),* }),
-        Some(Member::Unnamed(_)) => {
-            let vars = members.map(|member| match member {
-                Member::Unnamed(member) => format_ident!("_{}", member),
-                Member::Named(_) => unreachable!(),
-            });
-            quote!((#(#vars),*))
-        }
-        None => quote!({}),
-    }
-}
-
-fn use_as_display(needs_as_display: bool) -> Option<TokenStream> {
-    if needs_as_display {
-        Some(quote! {
-            use thiserror::__private::AsDisplay as _;
-        })
-    } else {
-        None
-    }
-}
-
-fn from_initializer(from_field: &Field, backtrace_field: Option<&Field>) -> TokenStream {
-    let from_member = &from_field.member;
-    let some_source = if type_is_option(from_field.ty) {
-        quote!(::core::option::Option::Some(source))
-    } else {
-        quote!(source)
-    };
-    let backtrace = backtrace_field.map(|backtrace_field| {
-        let backtrace_member = &backtrace_field.member;
-        if type_is_option(backtrace_field.ty) {
-            quote! {
-                #backtrace_member: ::core::option::Option::Some(std::backtrace::Backtrace::capture()),
-            }
-        } else {
-            quote! {
-                #backtrace_member: ::core::convert::From::from(std::backtrace::Backtrace::capture()),
-            }
-        }
-    });
-    quote!({
-        #from_member: #some_source,
-        #backtrace
-    })
-}
-
-fn type_is_option(ty: &Type) -> bool {
-    type_parameter_of_option(ty).is_some()
-}
-
-fn unoptional_type(ty: &Type) -> TokenStream {
-    let unoptional = type_parameter_of_option(ty).unwrap_or(ty);
-    quote!(#unoptional)
-}
-
-fn type_parameter_of_option(ty: &Type) -> Option<&Type> {
-    let path = match ty {
-        Type::Path(ty) => &ty.path,
-        _ => return None,
-    };
-
-    let last = path.segments.last().unwrap();
-    if last.ident != "Option" {
-        return None;
-    }
-
-    let bracketed = match &last.arguments {
-        PathArguments::AngleBracketed(bracketed) => bracketed,
-        _ => return None,
-    };
-
-    if bracketed.args.len() != 1 {
-        return None;
-    }
-
-    match &bracketed.args[0] {
-        GenericArgument::Type(arg) => Some(arg),
-        _ => None,
-    }
-}