diff options
Diffstat (limited to 'vendor/miette-derive/src/related.rs')
-rw-r--r-- | vendor/miette-derive/src/related.rs | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/vendor/miette-derive/src/related.rs b/vendor/miette-derive/src/related.rs deleted file mode 100644 index 9b7f9e1..0000000 --- a/vendor/miette-derive/src/related.rs +++ /dev/null @@ -1,79 +0,0 @@ -use proc_macro2::TokenStream; -use quote::{format_ident, quote}; -use syn::spanned::Spanned; - -use crate::{ - diagnostic::{DiagnosticConcreteArgs, DiagnosticDef}, - forward::WhichFn, - utils::{display_pat_members, gen_all_variants_with}, -}; - -pub struct Related(syn::Member); - -impl Related { - pub(crate) fn from_fields(fields: &syn::Fields) -> syn::Result<Option<Self>> { - match fields { - syn::Fields::Named(named) => Self::from_fields_vec(named.named.iter().collect()), - syn::Fields::Unnamed(unnamed) => { - Self::from_fields_vec(unnamed.unnamed.iter().collect()) - } - syn::Fields::Unit => Ok(None), - } - } - - fn from_fields_vec(fields: Vec<&syn::Field>) -> syn::Result<Option<Self>> { - for (i, field) in fields.iter().enumerate() { - for attr in &field.attrs { - if attr.path().is_ident("related") { - let related = if let Some(ident) = field.ident.clone() { - syn::Member::Named(ident) - } else { - syn::Member::Unnamed(syn::Index { - index: i as u32, - span: field.span(), - }) - }; - return Ok(Some(Related(related))); - } - } - } - Ok(None) - } - - pub(crate) fn gen_enum(variants: &[DiagnosticDef]) -> Option<TokenStream> { - gen_all_variants_with( - variants, - WhichFn::Related, - |ident, fields, DiagnosticConcreteArgs { related, .. }| { - let (display_pat, _display_members) = display_pat_members(fields); - related.as_ref().map(|related| { - let rel = match &related.0 { - syn::Member::Named(ident) => ident.clone(), - syn::Member::Unnamed(syn::Index { index, .. }) => { - format_ident!("_{}", index) - } - }; - quote! { - Self::#ident #display_pat => { - std::option::Option::Some(std::boxed::Box::new( - #rel.iter().map(|x| -> &(dyn miette::Diagnostic) { &*x }) - )) - } - } - }) - }, - ) - } - - pub(crate) fn gen_struct(&self) -> Option<TokenStream> { - let rel = &self.0; - Some(quote! { - fn related<'a>(&'a self) -> std::option::Option<std::boxed::Box<dyn std::iter::Iterator<Item = &'a dyn miette::Diagnostic> + 'a>> { - use ::core::borrow::Borrow; - std::option::Option::Some(std::boxed::Box::new( - self.#rel.iter().map(|x| -> &(dyn miette::Diagnostic) { &*x.borrow() }) - )) - } - }) - } -} |