diff options
Diffstat (limited to 'vendor/miette-derive/src/source_code.rs')
-rw-r--r-- | vendor/miette-derive/src/source_code.rs | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/vendor/miette-derive/src/source_code.rs b/vendor/miette-derive/src/source_code.rs deleted file mode 100644 index 62f28e7..0000000 --- a/vendor/miette-derive/src/source_code.rs +++ /dev/null @@ -1,81 +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 SourceCode { - source_code: syn::Member, -} - -impl SourceCode { - pub 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("source_code") { - let source_code = 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(SourceCode { source_code })); - } - } - } - Ok(None) - } - - pub(crate) fn gen_struct(&self, fields: &syn::Fields) -> Option<TokenStream> { - let (display_pat, _display_members) = display_pat_members(fields); - let src = &self.source_code; - Some(quote! { - #[allow(unused_variables)] - fn source_code(&self) -> std::option::Option<&dyn miette::SourceCode> { - let Self #display_pat = self; - Some(&self.#src) - } - }) - } - - pub(crate) fn gen_enum(variants: &[DiagnosticDef]) -> Option<TokenStream> { - gen_all_variants_with( - variants, - WhichFn::SourceCode, - |ident, fields, DiagnosticConcreteArgs { source_code, .. }| { - let (display_pat, _display_members) = display_pat_members(fields); - source_code.as_ref().and_then(|source_code| { - let field = match &source_code.source_code { - syn::Member::Named(ident) => ident.clone(), - syn::Member::Unnamed(syn::Index { index, .. }) => { - format_ident!("_{}", index) - } - }; - let variant_name = ident.clone(); - match &fields { - syn::Fields::Unit => None, - _ => Some(quote! { - Self::#variant_name #display_pat => std::option::Option::Some(#field), - }), - } - }) - }, - ) - } -} |