use std::collections::HashMap;
use std::fmt;
use std::str::FromStr;
-use syn::{spanned::Spanned, Meta, MetaList, MetaNameValue, NestedMeta, Path};
+use syn::{spanned::Spanned, Attribute, Meta, MetaList, MetaNameValue, NestedMeta, Path};
use synstructure::{BindingInfo, Structure, VariantInfo};
/// Which kind of suggestion is being created?
Verbose,
}
+impl FromStr for SubdiagnosticSuggestionKind {
+ type Err = ();
+
+ fn from_str(s: &str) -> Result<Self, Self::Err> {
+ match s {
+ "" => Ok(SubdiagnosticSuggestionKind::Normal),
+ "_short" => Ok(SubdiagnosticSuggestionKind::Short),
+ "_hidden" => Ok(SubdiagnosticSuggestionKind::Hidden),
+ "_verbose" => Ok(SubdiagnosticSuggestionKind::Verbose),
+ _ => Err(()),
+ }
+ }
+}
+
+impl SubdiagnosticSuggestionKind {
+ pub fn to_suggestion_style(&self) -> TokenStream {
+ match self {
+ SubdiagnosticSuggestionKind::Normal => {
+ quote! { rustc_errors::SuggestionStyle::ShowCode }
+ }
+ SubdiagnosticSuggestionKind::Short => {
+ quote! { rustc_errors::SuggestionStyle::HideCodeInline }
+ }
+ SubdiagnosticSuggestionKind::Hidden => {
+ quote! { rustc_errors::SuggestionStyle::HideCodeAlways }
+ }
+ SubdiagnosticSuggestionKind::Verbose => {
+ quote! { rustc_errors::SuggestionStyle::ShowAlways }
+ }
+ }
+ }
+}
+
/// Which kind of subdiagnostic is being created from a variant?
-#[derive(Clone, Copy)]
+#[derive(Clone)]
enum SubdiagnosticKind {
/// `#[label(...)]`
Label,
/// `#[warning(...)]`
Warn,
/// `#[suggestion{,_short,_hidden,_verbose}]`
- Suggestion(SubdiagnosticSuggestionKind),
-}
-
-impl FromStr for SubdiagnosticKind {
- type Err = ();
-
- fn from_str(s: &str) -> Result<Self, Self::Err> {
- match s {
- "label" => Ok(SubdiagnosticKind::Label),
- "note" => Ok(SubdiagnosticKind::Note),
- "help" => Ok(SubdiagnosticKind::Help),
- "warning" => Ok(SubdiagnosticKind::Warn),
- "suggestion" => Ok(SubdiagnosticKind::Suggestion(SubdiagnosticSuggestionKind::Normal)),
- "suggestion_short" => {
- Ok(SubdiagnosticKind::Suggestion(SubdiagnosticSuggestionKind::Short))
- }
- "suggestion_hidden" => {
- Ok(SubdiagnosticKind::Suggestion(SubdiagnosticSuggestionKind::Hidden))
- }
- "suggestion_verbose" => {
- Ok(SubdiagnosticKind::Suggestion(SubdiagnosticSuggestionKind::Verbose))
- }
- _ => Err(()),
- }
- }
+ Suggestion { suggestion_kind: SubdiagnosticSuggestionKind, code: TokenStream },
+ /// `#[multipart_suggestion{,_short,_hidden,_verbose}]`
+ MultipartSuggestion { suggestion_kind: SubdiagnosticSuggestionKind },
}
impl quote::IdentFragment for SubdiagnosticKind {
SubdiagnosticKind::Note => write!(f, "note"),
SubdiagnosticKind::Help => write!(f, "help"),
SubdiagnosticKind::Warn => write!(f, "warn"),
- SubdiagnosticKind::Suggestion(SubdiagnosticSuggestionKind::Normal) => {
- write!(f, "suggestion")
- }
- SubdiagnosticKind::Suggestion(SubdiagnosticSuggestionKind::Short) => {
- write!(f, "suggestion_short")
- }
- SubdiagnosticKind::Suggestion(SubdiagnosticSuggestionKind::Hidden) => {
- write!(f, "suggestion_hidden")
- }
- SubdiagnosticKind::Suggestion(SubdiagnosticSuggestionKind::Verbose) => {
- write!(f, "suggestion_verbose")
+ SubdiagnosticKind::Suggestion { .. } => write!(f, "suggestion_with_style"),
+ SubdiagnosticKind::MultipartSuggestion { .. } => {
+ write!(f, "multipart_suggestion_with_style")
}
}
}
variant,
span,
fields: fields_map,
- kinds: Vec::new(),
- slugs: Vec::new(),
- code: None,
span_field: None,
applicability: None,
+ has_suggestion_parts: false,
};
builder.into_tokens().unwrap_or_else(|v| v.to_compile_error())
});
/// derive builder.
fields: HashMap<String, TokenStream>,
- /// Subdiagnostic kind of the type/variant.
- kinds: Vec<(SubdiagnosticKind, proc_macro::Span)>,
-
- /// Slugs of the subdiagnostic - corresponds to the Fluent identifier for the message - from the
- /// `#[kind(slug)]` attribute on the type or variant.
- slugs: Vec<(Path, proc_macro::Span)>,
- /// If a suggestion, the code to suggest as a replacement - from the `#[kind(code = "...")]`
- /// attribute on the type or variant.
- code: Option<(TokenStream, proc_macro::Span)>,
-
/// Identifier for the binding to the `#[primary_span]` field.
span_field: Option<(proc_macro2::Ident, proc_macro::Span)>,
/// If a suggestion, the identifier for the binding to the `#[applicability]` field or a
/// `rustc_errors::Applicability::*` variant directly.
applicability: Option<(TokenStream, proc_macro::Span)>,
+
+ /// Set to true when a `#[suggestion_part]` field is encountered, used to generate an error
+ /// during finalization if still `false`.
+ has_suggestion_parts: bool,
}
impl<'a> HasFieldMap for SessionSubdiagnosticDeriveBuilder<'a> {
}
impl<'a> SessionSubdiagnosticDeriveBuilder<'a> {
- fn identify_kind(&mut self) -> Result<(), DiagnosticDeriveError> {
- for (i, attr) in self.variant.ast().attrs.iter().enumerate() {
+ fn identify_kind(
+ &mut self,
+ ) -> Result<Option<(SubdiagnosticKind, Path)>, DiagnosticDeriveError> {
+ let mut kind_slug = None;
+
+ for attr in self.variant.ast().attrs {
let span = attr.span().unwrap();
let name = attr.path.segments.last().unwrap().ident.to_string();
let name = name.as_str();
let meta = attr.parse_meta()?;
- let kind = match meta {
- Meta::List(MetaList { ref nested, .. }) => {
- let mut nested_iter = nested.into_iter();
- if let Some(nested_attr) = nested_iter.next() {
- match nested_attr {
- NestedMeta::Meta(Meta::Path(path)) => {
- self.slugs.push((path.clone(), span));
- }
- NestedMeta::Meta(meta @ Meta::NameValue(_))
- if matches!(
- meta.path().segments.last().unwrap().ident.to_string().as_str(),
- "code" | "applicability"
- ) =>
- {
- // don't error for valid follow-up attributes
- }
- nested_attr => {
- throw_invalid_nested_attr!(attr, &nested_attr, |diag| {
- diag.help(
- "first argument of the attribute should be the diagnostic \
- slug",
- )
- })
- }
- };
- }
+ let Meta::List(MetaList { ref nested, .. }) = meta else {
+ throw_invalid_attr!(attr, &meta);
+ };
- for nested_attr in nested_iter {
- let meta = match nested_attr {
- NestedMeta::Meta(ref meta) => meta,
- _ => throw_invalid_nested_attr!(attr, &nested_attr),
- };
-
- let span = meta.span().unwrap();
- let nested_name = meta.path().segments.last().unwrap().ident.to_string();
- let nested_name = nested_name.as_str();
-
- match meta {
- Meta::NameValue(MetaNameValue { lit: syn::Lit::Str(s), .. }) => {
- match nested_name {
- "code" => {
- let formatted_str = self.build_format(&s.value(), s.span());
- self.code.set_once((formatted_str, span));
- }
- "applicability" => {
- let value = match Applicability::from_str(&s.value()) {
- Ok(v) => v,
- Err(()) => {
- span_err(span, "invalid applicability").emit();
- Applicability::Unspecified
- }
- };
- self.applicability.set_once((quote! { #value }, span));
- }
- _ => throw_invalid_nested_attr!(attr, &nested_attr, |diag| {
- diag.help(
- "only `code` and `applicability` are valid nested \
- attributes",
- )
- }),
- }
- }
- _ => throw_invalid_nested_attr!(attr, &nested_attr, |diag| {
- if matches!(meta, Meta::Path(_)) {
- diag.help(
- "a diagnostic slug must be the first argument to the \
- attribute",
- )
- } else {
- diag
- }
- }),
- }
+ let mut kind = match name {
+ "label" => SubdiagnosticKind::Label,
+ "note" => SubdiagnosticKind::Note,
+ "help" => SubdiagnosticKind::Help,
+ "warning" => SubdiagnosticKind::Warn,
+ _ => {
+ if let Some(suggestion_kind) =
+ name.strip_prefix("suggestion").and_then(|s| s.parse().ok())
+ {
+ SubdiagnosticKind::Suggestion { suggestion_kind, code: TokenStream::new() }
+ } else if let Some(suggestion_kind) =
+ name.strip_prefix("multipart_suggestion").and_then(|s| s.parse().ok())
+ {
+ SubdiagnosticKind::MultipartSuggestion { suggestion_kind }
+ } else {
+ throw_invalid_attr!(attr, &meta);
}
-
- let Ok(kind) = SubdiagnosticKind::from_str(name) else {
- throw_invalid_attr!(attr, &meta)
- };
-
- kind
}
- _ => throw_invalid_attr!(attr, &meta),
};
- if matches!(
- kind,
- SubdiagnosticKind::Label | SubdiagnosticKind::Help | SubdiagnosticKind::Note
- ) && self.code.is_some()
- {
- throw_span_err!(
- span,
- &format!("`code` is not a valid nested attribute of a `{}` attribute", name)
- );
+ let mut slug = None;
+ let mut code = None;
+
+ let mut nested_iter = nested.into_iter();
+ if let Some(nested_attr) = nested_iter.next() {
+ match nested_attr {
+ NestedMeta::Meta(Meta::Path(path)) => {
+ slug.set_once((path.clone(), span));
+ }
+ NestedMeta::Meta(meta @ Meta::NameValue(_))
+ if matches!(
+ meta.path().segments.last().unwrap().ident.to_string().as_str(),
+ "code" | "applicability"
+ ) =>
+ {
+ // Don't error for valid follow-up attributes.
+ }
+ nested_attr => {
+ throw_invalid_nested_attr!(attr, &nested_attr, |diag| {
+ diag.help(
+ "first argument of the attribute should be the diagnostic \
+ slug",
+ )
+ })
+ }
+ };
}
- if matches!(
- kind,
- SubdiagnosticKind::Label | SubdiagnosticKind::Help | SubdiagnosticKind::Note
- ) && self.applicability.is_some()
- {
- throw_span_err!(
- span,
- &format!(
- "`applicability` is not a valid nested attribute of a `{}` attribute",
- name
- )
- );
+ for nested_attr in nested_iter {
+ let meta = match nested_attr {
+ NestedMeta::Meta(ref meta) => meta,
+ _ => throw_invalid_nested_attr!(attr, &nested_attr),
+ };
+
+ let span = meta.span().unwrap();
+ let nested_name = meta.path().segments.last().unwrap().ident.to_string();
+ let nested_name = nested_name.as_str();
+
+ let value = match meta {
+ Meta::NameValue(MetaNameValue { lit: syn::Lit::Str(value), .. }) => value,
+ Meta::Path(_) => throw_invalid_nested_attr!(attr, &nested_attr, |diag| {
+ diag.help("a diagnostic slug must be the first argument to the attribute")
+ }),
+ _ => throw_invalid_nested_attr!(attr, &nested_attr),
+ };
+
+ match nested_name {
+ "code" => {
+ if matches!(kind, SubdiagnosticKind::Suggestion { .. }) {
+ let formatted_str = self.build_format(&value.value(), value.span());
+ code.set_once((formatted_str, span));
+ } else {
+ span_err(
+ span,
+ &format!(
+ "`code` is not a valid nested attribute of a `{}` attribute",
+ name
+ ),
+ )
+ .emit();
+ }
+ }
+ "applicability" => {
+ if matches!(
+ kind,
+ SubdiagnosticKind::Suggestion { .. }
+ | SubdiagnosticKind::MultipartSuggestion { .. }
+ ) {
+ let value =
+ Applicability::from_str(&value.value()).unwrap_or_else(|()| {
+ span_err(span, "invalid applicability").emit();
+ Applicability::Unspecified
+ });
+ self.applicability.set_once((quote! { #value }, span));
+ } else {
+ span_err(
+ span,
+ &format!(
+ "`applicability` is not a valid nested attribute of a `{}` attribute",
+ name
+ )
+ ).emit();
+ }
+ }
+ _ => throw_invalid_nested_attr!(attr, &nested_attr, |diag| {
+ diag.help("only `code` and `applicability` are valid nested attributes")
+ }),
+ }
}
- if self.slugs.len() != i + 1 {
+ let Some((slug, _)) = slug else {
throw_span_err!(
span,
&format!(
name
)
);
+ };
+
+ match kind {
+ SubdiagnosticKind::Suggestion { code: ref mut code_field, .. } => {
+ let Some((code, _)) = code else {
+ throw_span_err!(span, "suggestion without `code = \"...\"`");
+ };
+ *code_field = code;
+ }
+ SubdiagnosticKind::Label
+ | SubdiagnosticKind::Note
+ | SubdiagnosticKind::Help
+ | SubdiagnosticKind::Warn
+ | SubdiagnosticKind::MultipartSuggestion { .. } => {}
}
- self.kinds.push((kind, span));
+ kind_slug.set_once(((kind, slug), span))
}
- Ok(())
+ Ok(kind_slug.map(|(kind_slug, _)| kind_slug))
+ }
+
+ /// Generates the code for a field with no attributes.
+ fn generate_field_set_arg(&mut self, binding: &BindingInfo<'_>) -> TokenStream {
+ let ast = binding.ast();
+ assert_eq!(ast.attrs.len(), 0, "field with attribute used as diagnostic arg");
+
+ let diag = &self.diag;
+ let ident = ast.ident.as_ref().unwrap();
+ quote! {
+ #diag.set_arg(
+ stringify!(#ident),
+ #binding
+ );
+ }
}
- fn generate_field_code(
+ /// Generates the necessary code for all attributes on a field.
+ fn generate_field_attr_code(
&mut self,
binding: &BindingInfo<'_>,
- have_suggestion: bool,
- ) -> Result<TokenStream, DiagnosticDeriveError> {
+ kind: &SubdiagnosticKind,
+ ) -> TokenStream {
let ast = binding.ast();
+ assert!(ast.attrs.len() > 0, "field without attributes generating attr code");
+ // Abstract over `Vec<T>` and `Option<T>` fields using `FieldInnerTy`, which will
+ // apply the generated code on each element in the `Vec` or `Option`.
let inner_ty = FieldInnerTy::from_type(&ast.ty);
- let info = FieldInfo {
- binding: binding,
- ty: inner_ty.inner_type().unwrap_or(&ast.ty),
- span: &ast.span(),
- };
+ ast.attrs
+ .iter()
+ .map(|attr| {
+ let info = FieldInfo {
+ binding,
+ ty: inner_ty.inner_type().unwrap_or(&ast.ty),
+ span: &ast.span(),
+ };
- for attr in &ast.attrs {
- let name = attr.path.segments.last().unwrap().ident.to_string();
- let name = name.as_str();
- let span = attr.span().unwrap();
+ let generated = self
+ .generate_field_code_inner(kind, attr, info)
+ .unwrap_or_else(|v| v.to_compile_error());
- let meta = attr.parse_meta()?;
- match meta {
- Meta::Path(_) => match name {
- "primary_span" => {
- report_error_if_not_applied_to_span(attr, &info)?;
- self.span_field.set_once((binding.binding.clone(), span));
- return Ok(quote! {});
- }
- "applicability" if have_suggestion => {
- report_error_if_not_applied_to_applicability(attr, &info)?;
- let binding = binding.binding.clone();
- self.applicability.set_once((quote! { #binding }, span));
- return Ok(quote! {});
- }
- "applicability" => {
- span_err(span, "`#[applicability]` is only valid on suggestions").emit();
- return Ok(quote! {});
- }
- "skip_arg" => {
- return Ok(quote! {});
- }
- _ => throw_invalid_attr!(attr, &meta, |diag| {
+ inner_ty.with(binding, generated)
+ })
+ .collect()
+ }
+
+ fn generate_field_code_inner(
+ &mut self,
+ kind: &SubdiagnosticKind,
+ attr: &Attribute,
+ info: FieldInfo<'_>,
+ ) -> Result<TokenStream, DiagnosticDeriveError> {
+ let meta = attr.parse_meta()?;
+ match meta {
+ Meta::Path(path) => self.generate_field_code_inner_path(kind, attr, info, path),
+ Meta::List(list @ MetaList { .. }) => {
+ self.generate_field_code_inner_list(kind, attr, info, list)
+ }
+ _ => throw_invalid_attr!(attr, &meta),
+ }
+ }
+
+ /// Generates the code for a `[Meta::Path]`-like attribute on a field (e.g. `#[primary_span]`).
+ fn generate_field_code_inner_path(
+ &mut self,
+ kind: &SubdiagnosticKind,
+ attr: &Attribute,
+ info: FieldInfo<'_>,
+ path: Path,
+ ) -> Result<TokenStream, DiagnosticDeriveError> {
+ let span = attr.span().unwrap();
+ let ident = &path.segments.last().unwrap().ident;
+ let name = ident.to_string();
+ let name = name.as_str();
+
+ match name {
+ "skip_arg" => Ok(quote! {}),
+ "primary_span" => {
+ if matches!(kind, SubdiagnosticKind::MultipartSuggestion { .. }) {
+ throw_invalid_attr!(attr, &Meta::Path(path), |diag| {
diag.help(
- "only `primary_span`, `applicability` and `skip_arg` are valid field \
- attributes",
+ "multipart suggestions use one or more `#[suggestion_part]`s rather \
+ than one `#[primary_span]`",
)
- }),
- },
- _ => throw_invalid_attr!(attr, &meta),
+ })
+ }
+
+ report_error_if_not_applied_to_span(attr, &info)?;
+
+ let binding = info.binding.binding.clone();
+ self.span_field.set_once((binding, span));
+
+ Ok(quote! {})
+ }
+ "suggestion_part" => {
+ self.has_suggestion_parts = true;
+
+ match kind {
+ SubdiagnosticKind::MultipartSuggestion { .. } => {
+ span_err(
+ span,
+ "`#[suggestion_part(...)]` attribute without `code = \"...\"`",
+ )
+ .emit();
+ Ok(quote! {})
+ }
+ SubdiagnosticKind::Label
+ | SubdiagnosticKind::Note
+ | SubdiagnosticKind::Help
+ | SubdiagnosticKind::Warn
+ | SubdiagnosticKind::Suggestion { .. } => {
+ throw_invalid_attr!(attr, &Meta::Path(path), |diag| {
+ diag.help(
+ "`#[suggestion_part(...)]` is only valid in multipart suggestions, use `#[primary_span]` instead",
+ )
+ });
+ }
+ }
}
+ "applicability" => {
+ if let SubdiagnosticKind::Suggestion { .. }
+ | SubdiagnosticKind::MultipartSuggestion { .. } = kind
+ {
+ report_error_if_not_applied_to_applicability(attr, &info)?;
+
+ let binding = info.binding.binding.clone();
+ self.applicability.set_once((quote! { #binding }, span));
+ } else {
+ span_err(span, "`#[applicability]` is only valid on suggestions").emit();
+ }
+
+ Ok(quote! {})
+ }
+ _ => throw_invalid_attr!(attr, &Meta::Path(path), |diag| {
+ let span_attr = if let SubdiagnosticKind::MultipartSuggestion { .. } = kind {
+ "suggestion_part"
+ } else {
+ "primary_span"
+ };
+ diag.help(format!(
+ "only `{span_attr}`, `applicability` and `skip_arg` are valid field attributes",
+ ))
+ }),
}
+ }
- let ident = ast.ident.as_ref().unwrap();
+ /// Generates the code for a `[Meta::List]`-like attribute on a field (e.g.
+ /// `#[suggestion_part(code = "...")]`).
+ fn generate_field_code_inner_list(
+ &mut self,
+ kind: &SubdiagnosticKind,
+ attr: &Attribute,
+ info: FieldInfo<'_>,
+ list: MetaList,
+ ) -> Result<TokenStream, DiagnosticDeriveError> {
+ let span = attr.span().unwrap();
+ let ident = &list.path.segments.last().unwrap().ident;
+ let name = ident.to_string();
+ let name = name.as_str();
+
+ match name {
+ "suggestion_part" => {
+ if !matches!(kind, SubdiagnosticKind::MultipartSuggestion { .. }) {
+ throw_invalid_attr!(attr, &Meta::List(list), |diag| {
+ diag.help(
+ "`#[suggestion_part(...)]` is only valid in multipart suggestions",
+ )
+ })
+ }
- let diag = &self.diag;
- let generated = quote! {
- #diag.set_arg(
- stringify!(#ident),
- #binding
- );
- };
+ self.has_suggestion_parts = true;
+
+ report_error_if_not_applied_to_span(attr, &info)?;
+
+ let mut code = None;
+ for nested_attr in list.nested.iter() {
+ let NestedMeta::Meta(ref meta) = nested_attr else {
+ throw_invalid_nested_attr!(attr, &nested_attr);
+ };
+
+ let span = meta.span().unwrap();
+ let nested_name = meta.path().segments.last().unwrap().ident.to_string();
+ let nested_name = nested_name.as_str();
+
+ let Meta::NameValue(MetaNameValue { lit: syn::Lit::Str(value), .. }) = meta else {
+ throw_invalid_nested_attr!(attr, &nested_attr);
+ };
+
+ match nested_name {
+ "code" => {
+ let formatted_str = self.build_format(&value.value(), value.span());
+ code.set_once((formatted_str, span));
+ }
+ _ => throw_invalid_nested_attr!(attr, &nested_attr, |diag| {
+ diag.help("`code` is the only valid nested attribute")
+ }),
+ }
+ }
+
+ let Some((code, _)) = code else {
+ span_err(span, "`#[suggestion_part(...)]` attribute without `code = \"...\"`")
+ .emit();
+ return Ok(quote! {});
+ };
+ let binding = info.binding;
- Ok(inner_ty.with(binding, generated))
+ Ok(quote! { suggestions.push((#binding, #code)); })
+ }
+ _ => throw_invalid_attr!(attr, &Meta::List(list), |diag| {
+ let span_attr = if let SubdiagnosticKind::MultipartSuggestion { .. } = kind {
+ "suggestion_part"
+ } else {
+ "primary_span"
+ };
+ diag.help(format!(
+ "only `{span_attr}`, `applicability` and `skip_arg` are valid field attributes",
+ ))
+ }),
+ }
}
- fn into_tokens(&mut self) -> Result<TokenStream, DiagnosticDeriveError> {
- self.identify_kind()?;
- if self.kinds.is_empty() {
+ pub fn into_tokens(&mut self) -> Result<TokenStream, DiagnosticDeriveError> {
+ let Some((kind, slug)) = self.identify_kind()? else {
throw_span_err!(
self.variant.ast().ident.span().unwrap(),
"subdiagnostic kind not specified"
);
};
- let have_suggestion =
- self.kinds.iter().any(|(k, _)| matches!(k, SubdiagnosticKind::Suggestion(_)));
- let mut args = TokenStream::new();
- for binding in self.variant.bindings() {
- let arg = self
- .generate_field_code(binding, have_suggestion)
- .unwrap_or_else(|v| v.to_compile_error());
- args.extend(arg);
- }
- let mut tokens = TokenStream::new();
- for ((kind, _), (slug, _)) in self.kinds.iter().zip(&self.slugs) {
- let code = match self.code.as_ref() {
- Some((code, _)) => Some(quote! { #code }),
- None if have_suggestion => {
- span_err(self.span, "suggestion without `code = \"...\"`").emit();
- Some(quote! { /* macro error */ "..." })
- }
- None => None,
- };
- let span_field = self.span_field.as_ref().map(|(span, _)| span);
- let applicability = match self.applicability.clone() {
- Some((applicability, _)) => Some(applicability),
- None if have_suggestion => {
- span_err(self.span, "suggestion without `applicability`").emit();
- Some(quote! { rustc_errors::Applicability::Unspecified })
- }
- None => None,
- };
+ let init = match &kind {
+ SubdiagnosticKind::Label
+ | SubdiagnosticKind::Note
+ | SubdiagnosticKind::Help
+ | SubdiagnosticKind::Warn
+ | SubdiagnosticKind::Suggestion { .. } => quote! {},
+ SubdiagnosticKind::MultipartSuggestion { .. } => {
+ quote! { let mut suggestions = Vec::new(); }
+ }
+ };
+
+ let attr_args: TokenStream = self
+ .variant
+ .bindings()
+ .iter()
+ .filter(|binding| !binding.ast().attrs.is_empty())
+ .map(|binding| self.generate_field_attr_code(binding, &kind))
+ .collect();
+
+ let span_field = self.span_field.as_ref().map(|(span, _)| span);
+ let applicability = self.applicability.take().map_or_else(
+ || quote! { rustc_errors::Applicability::Unspecified },
+ |(applicability, _)| applicability,
+ );
- let diag = &self.diag;
- let name = format_ident!("{}{}", if span_field.is_some() { "span_" } else { "" }, kind);
- let message = quote! { rustc_errors::fluent::#slug };
- let call = if matches!(kind, SubdiagnosticKind::Suggestion(..)) {
+ let diag = &self.diag;
+ let name = format_ident!("{}{}", if span_field.is_some() { "span_" } else { "" }, kind);
+ let message = quote! { rustc_errors::fluent::#slug };
+ let call = match kind {
+ SubdiagnosticKind::Suggestion { suggestion_kind, code } => {
if let Some(span) = span_field {
- quote! { #diag.#name(#span, #message, #code, #applicability); }
+ let style = suggestion_kind.to_suggestion_style();
+
+ quote! { #diag.#name(#span, #message, #code, #applicability, #style); }
} else {
span_err(self.span, "suggestion without `#[primary_span]` field").emit();
quote! { unreachable!(); }
}
- } else if matches!(kind, SubdiagnosticKind::Label) {
+ }
+ SubdiagnosticKind::MultipartSuggestion { suggestion_kind } => {
+ if !self.has_suggestion_parts {
+ span_err(
+ self.span,
+ "multipart suggestion without any `#[suggestion_part(...)]` fields",
+ )
+ .emit();
+ }
+
+ let style = suggestion_kind.to_suggestion_style();
+
+ quote! { #diag.#name(#message, suggestions, #applicability, #style); }
+ }
+ SubdiagnosticKind::Label => {
if let Some(span) = span_field {
quote! { #diag.#name(#span, #message); }
} else {
span_err(self.span, "label without `#[primary_span]` field").emit();
quote! { unreachable!(); }
}
- } else {
+ }
+ _ => {
if let Some(span) = span_field {
quote! { #diag.#name(#span, #message); }
} else {
quote! { #diag.#name(#message); }
}
- };
- tokens.extend(quote! {
- #call
- #args
- });
- }
+ }
+ };
- Ok(tokens)
+ let plain_args: TokenStream = self
+ .variant
+ .bindings()
+ .iter()
+ .filter(|binding| binding.ast().attrs.is_empty())
+ .map(|binding| self.generate_field_set_arg(binding))
+ .collect();
+
+ Ok(quote! {
+ #init
+ #attr_args
+ #call
+ #plain_args
+ })
}
}
#[derive(SessionSubdiagnostic)]
enum Q {
#[bar]
-//~^ ERROR `#[bar]` is not a valid attribute
-//~^^ ERROR cannot find attribute `bar` in this scope
+ //~^ ERROR `#[bar]` is not a valid attribute
+ //~^^ ERROR cannot find attribute `bar` in this scope
A {
#[primary_span]
span: Span,
#[derive(SessionSubdiagnostic)]
enum R {
#[bar = "..."]
-//~^ ERROR `#[bar = ...]` is not a valid attribute
-//~^^ ERROR cannot find attribute `bar` in this scope
+ //~^ ERROR `#[bar = ...]` is not a valid attribute
+ //~^^ ERROR cannot find attribute `bar` in this scope
A {
#[primary_span]
span: Span,
#[derive(SessionSubdiagnostic)]
enum S {
#[bar = 4]
-//~^ ERROR `#[bar = ...]` is not a valid attribute
-//~^^ ERROR cannot find attribute `bar` in this scope
+ //~^ ERROR `#[bar = ...]` is not a valid attribute
+ //~^^ ERROR cannot find attribute `bar` in this scope
A {
#[primary_span]
span: Span,
#[derive(SessionSubdiagnostic)]
enum T {
#[bar("...")]
-//~^ ERROR `#[bar("...")]` is not a valid attribute
-//~^^ ERROR cannot find attribute `bar` in this scope
+ //~^ ERROR `#[bar(...)]` is not a valid attribute
+ //~^^ ERROR cannot find attribute `bar` in this scope
A {
#[primary_span]
span: Span,
#[derive(SessionSubdiagnostic)]
enum U {
#[label(code = "...")]
-//~^ ERROR diagnostic slug must be first argument of a `#[label(...)]` attribute
+ //~^ ERROR diagnostic slug must be first argument of a `#[label(...)]` attribute
A {
#[primary_span]
span: Span,
var: String,
},
B {
-//~^ ERROR subdiagnostic kind not specified
+ //~^ ERROR subdiagnostic kind not specified
#[primary_span]
span: Span,
var: String,
b: u64
}
+#[derive(SessionSubdiagnostic)]
+#[label(parser::add_paren)]
+//~^ NOTE previously specified here
+#[label(parser::add_paren)]
+//~^ ERROR specified multiple times
+struct AD {
+ #[primary_span]
+ span: Span,
+}
+
#[derive(SessionSubdiagnostic)]
#[label(parser::add_paren, parser::add_paren)]
//~^ ERROR `#[label(parser::add_paren)]` is not a valid attribute
#[label(parser::add_paren)]
struct AF {
#[primary_span]
-//~^ NOTE previously specified here
+ //~^ NOTE previously specified here
span_a: Span,
#[primary_span]
-//~^ ERROR specified multiple times
+ //~^ ERROR specified multiple times
span_b: Span,
}
#[derive(SessionSubdiagnostic)]
struct AG {
-//~^ ERROR subdiagnostic kind not specified
+ //~^ ERROR subdiagnostic kind not specified
#[primary_span]
span: Span,
}
#[primary_span]
span: Span,
#[applicability]
-//~^ NOTE previously specified here
+ //~^ NOTE previously specified here
applicability_a: Applicability,
#[applicability]
-//~^ ERROR specified multiple times
+ //~^ ERROR specified multiple times
applicability_b: Applicability,
}
#[derive(SessionSubdiagnostic)]
#[suggestion(parser::add_paren, code = "...")]
-//~^ ERROR suggestion without `applicability`
struct AL {
#[primary_span]
span: Span,
#[applicability]
-//~^ ERROR the `#[applicability]` attribute can only be applied to fields of type `Applicability`
+ //~^ ERROR the `#[applicability]` attribute can only be applied to fields of type `Applicability`
applicability: Span,
}
#[derive(SessionSubdiagnostic)]
#[suggestion(parser::add_paren, code = "...")]
-//~^ ERROR suggestion without `applicability`
struct AM {
#[primary_span]
span: Span,
#[derive(SessionSubdiagnostic)]
#[suggestion(parser::add_paren, code = "...")]
-//~^ ERROR suggestion without `applicability`
-//~^^ ERROR suggestion without `#[primary_span]` field
+//~^ ERROR suggestion without `#[primary_span]` field
struct AR {
var: String,
}
#[primary_span]
span: Span,
}
+
+#[derive(SessionSubdiagnostic)]
+#[suggestion(parser::add_paren, code = "...")]
+//~^ ERROR suggestion without `#[primary_span]` field
+struct BA {
+ #[suggestion_part]
+ //~^ ERROR `#[suggestion_part]` is not a valid attribute
+ span: Span,
+ #[suggestion_part(code = "...")]
+ //~^ ERROR `#[suggestion_part(...)]` is not a valid attribute
+ span2: Span,
+ #[applicability]
+ applicability: Applicability,
+ var: String,
+}
+
+#[derive(SessionSubdiagnostic)]
+#[multipart_suggestion(parser::add_paren, code = "...", applicability = "machine-applicable")]
+//~^ ERROR multipart suggestion without any `#[suggestion_part(...)]` fields
+//~| ERROR `code` is not a valid nested attribute of a `multipart_suggestion` attribute
+struct BBa {
+ var: String,
+}
+
+#[derive(SessionSubdiagnostic)]
+#[multipart_suggestion(parser::add_paren, applicability = "machine-applicable")]
+struct BBb {
+ #[suggestion_part]
+ //~^ ERROR `#[suggestion_part(...)]` attribute without `code = "..."`
+ span1: Span,
+}
+
+#[derive(SessionSubdiagnostic)]
+#[multipart_suggestion(parser::add_paren, applicability = "machine-applicable")]
+struct BBc {
+ #[suggestion_part()]
+ //~^ ERROR `#[suggestion_part(...)]` attribute without `code = "..."`
+ span1: Span,
+}
+
+#[derive(SessionSubdiagnostic)]
+#[multipart_suggestion(parser::add_paren)]
+//~^ ERROR multipart suggestion without any `#[suggestion_part(...)]` fields
+struct BC {
+ #[primary_span]
+ //~^ ERROR `#[primary_span]` is not a valid attribute
+ span: Span,
+}
+
+#[derive(SessionSubdiagnostic)]
+#[multipart_suggestion(parser::add_paren)]
+struct BD {
+ #[suggestion_part]
+ //~^ ERROR `#[suggestion_part(...)]` attribute without `code = "..."`
+ span1: Span,
+ #[suggestion_part()]
+ //~^ ERROR `#[suggestion_part(...)]` attribute without `code = "..."`
+ span2: Span,
+ #[suggestion_part(foo = "bar")]
+ //~^ ERROR `#[suggestion_part(foo = ...)]` is not a valid attribute
+ span4: Span,
+ #[suggestion_part(code = "...")]
+ //~^ ERROR the `#[suggestion_part(...)]` attribute can only be applied to fields of type `Span` or `MultiSpan`
+ s1: String,
+ #[suggestion_part()]
+ //~^ ERROR the `#[suggestion_part(...)]` attribute can only be applied to fields of type `Span` or `MultiSpan`
+ s2: String,
+}
+
+#[derive(SessionSubdiagnostic)]
+#[multipart_suggestion(parser::add_paren, applicability = "machine-applicable")]
+struct BE {
+ #[suggestion_part(code = "...", code = ",,,")]
+ //~^ ERROR specified multiple times
+ //~| NOTE previously specified here
+ span: Span,
+}
+
+#[derive(SessionSubdiagnostic)]
+#[multipart_suggestion(parser::add_paren, applicability = "machine-applicable")]
+struct BF {
+ #[suggestion_part(code = "(")]
+ first: Span,
+ #[suggestion_part(code = ")")]
+ second: Span,
+}
+
+#[derive(SessionSubdiagnostic)]
+#[multipart_suggestion(parser::add_paren)]
+struct BG {
+ #[applicability]
+ appl: Applicability,
+ #[suggestion_part(code = "(")]
+ first: Span,
+ #[suggestion_part(code = ")")]
+ second: Span,
+}
+
+#[derive(SessionSubdiagnostic)]
+#[multipart_suggestion(parser::add_paren, applicability = "machine-applicable")]
+//~^ NOTE previously specified here
+struct BH {
+ #[applicability]
+ //~^ ERROR specified multiple times
+ appl: Applicability,
+ #[suggestion_part(code = "(")]
+ first: Span,
+ #[suggestion_part(code = ")")]
+ second: Span,
+}
+
+#[derive(SessionSubdiagnostic)]
+#[multipart_suggestion(parser::add_paren, applicability = "machine-applicable")]
+struct BI {
+ #[suggestion_part(code = "")]
+ spans: Vec<Span>,
+}
| ^^^^^^^^^^
error: `code` is not a valid nested attribute of a `label` attribute
- --> $DIR/subdiagnostic-derive.rs:137:1
+ --> $DIR/subdiagnostic-derive.rs:137:28
|
LL | #[label(parser::add_paren, code = "...")]
- | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ | ^^^^^^^^^^^^
error: `applicability` is not a valid nested attribute of a `label` attribute
- --> $DIR/subdiagnostic-derive.rs:146:1
+ --> $DIR/subdiagnostic-derive.rs:146:28
|
LL | #[label(parser::add_paren, applicability = "machine-applicable")]
- | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: unsupported type attribute for subdiagnostic enum
--> $DIR/subdiagnostic-derive.rs:155:1
LL | #[bar = 4]
| ^^^^^^^^^^
-error: `#[bar("...")]` is not a valid attribute
- --> $DIR/subdiagnostic-derive.rs:205:11
+error: `#[bar(...)]` is not a valid attribute
+ --> $DIR/subdiagnostic-derive.rs:205:5
|
LL | #[bar("...")]
- | ^^^^^
- |
- = help: first argument of the attribute should be the diagnostic slug
+ | ^^^^^^^^^^^^^
error: diagnostic slug must be first argument of a `#[label(...)]` attribute
--> $DIR/subdiagnostic-derive.rs:217:5
|
LL | #[bar("...")]
| ^^^^^^^^^^^^^
+ |
+ = help: only `primary_span`, `applicability` and `skip_arg` are valid field attributes
error: unexpected unsupported untagged union
--> $DIR/subdiagnostic-derive.rs:304:1
LL | | }
| |_^
+error: specified multiple times
+ --> $DIR/subdiagnostic-derive.rs:313:1
+ |
+LL | #[label(parser::add_paren)]
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ |
+note: previously specified here
+ --> $DIR/subdiagnostic-derive.rs:311:1
+ |
+LL | #[label(parser::add_paren)]
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
error: `#[label(parser::add_paren)]` is not a valid attribute
- --> $DIR/subdiagnostic-derive.rs:311:28
+ --> $DIR/subdiagnostic-derive.rs:321:28
|
LL | #[label(parser::add_paren, parser::add_paren)]
| ^^^^^^^^^^^^^^^^^
= help: a diagnostic slug must be the first argument to the attribute
error: specified multiple times
- --> $DIR/subdiagnostic-derive.rs:324:5
+ --> $DIR/subdiagnostic-derive.rs:334:5
|
LL | #[primary_span]
| ^^^^^^^^^^^^^^^
|
note: previously specified here
- --> $DIR/subdiagnostic-derive.rs:321:5
+ --> $DIR/subdiagnostic-derive.rs:331:5
|
LL | #[primary_span]
| ^^^^^^^^^^^^^^^
error: subdiagnostic kind not specified
- --> $DIR/subdiagnostic-derive.rs:330:8
+ --> $DIR/subdiagnostic-derive.rs:340:8
|
LL | struct AG {
| ^^
error: specified multiple times
- --> $DIR/subdiagnostic-derive.rs:367:47
+ --> $DIR/subdiagnostic-derive.rs:377:47
|
LL | #[suggestion(parser::add_paren, code = "...", code = "...")]
| ^^^^^^^^^^^^
|
note: previously specified here
- --> $DIR/subdiagnostic-derive.rs:367:33
+ --> $DIR/subdiagnostic-derive.rs:377:33
|
LL | #[suggestion(parser::add_paren, code = "...", code = "...")]
| ^^^^^^^^^^^^
error: specified multiple times
- --> $DIR/subdiagnostic-derive.rs:385:5
+ --> $DIR/subdiagnostic-derive.rs:395:5
|
LL | #[applicability]
| ^^^^^^^^^^^^^^^^
|
note: previously specified here
- --> $DIR/subdiagnostic-derive.rs:382:5
+ --> $DIR/subdiagnostic-derive.rs:392:5
|
LL | #[applicability]
| ^^^^^^^^^^^^^^^^
error: the `#[applicability]` attribute can only be applied to fields of type `Applicability`
- --> $DIR/subdiagnostic-derive.rs:396:5
+ --> $DIR/subdiagnostic-derive.rs:405:5
|
LL | #[applicability]
| ^^^^^^^^^^^^^^^^
-error: suggestion without `applicability`
- --> $DIR/subdiagnostic-derive.rs:391:1
+error: suggestion without `code = "..."`
+ --> $DIR/subdiagnostic-derive.rs:418:1
+ |
+LL | #[suggestion(parser::add_paren)]
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: invalid applicability
+ --> $DIR/subdiagnostic-derive.rs:428:46
|
-LL | / #[suggestion(parser::add_paren, code = "...")]
-LL | |
-LL | | struct AL {
-LL | | #[primary_span]
-... |
-LL | | applicability: Span,
-LL | | }
- | |_^
+LL | #[suggestion(parser::add_paren, code ="...", applicability = "foo")]
+ | ^^^^^^^^^^^^^^^^^^^^^
-error: suggestion without `applicability`
- --> $DIR/subdiagnostic-derive.rs:402:1
+error: suggestion without `#[primary_span]` field
+ --> $DIR/subdiagnostic-derive.rs:446:1
|
LL | / #[suggestion(parser::add_paren, code = "...")]
LL | |
-LL | | struct AM {
-LL | | #[primary_span]
-LL | | span: Span,
+LL | | struct AR {
+LL | | var: String,
LL | | }
| |_^
-error: suggestion without `code = "..."`
- --> $DIR/subdiagnostic-derive.rs:410:1
+error: unsupported type attribute for subdiagnostic enum
+ --> $DIR/subdiagnostic-derive.rs:460:1
+ |
+LL | #[label]
+ | ^^^^^^^^
+
+error: `var` doesn't refer to a field on this type
+ --> $DIR/subdiagnostic-derive.rs:480:39
+ |
+LL | #[suggestion(parser::add_paren, code ="{var}", applicability = "machine-applicable")]
+ | ^^^^^^^
+
+error: `var` doesn't refer to a field on this type
+ --> $DIR/subdiagnostic-derive.rs:499:43
+ |
+LL | #[suggestion(parser::add_paren, code ="{var}", applicability = "machine-applicable")]
+ | ^^^^^^^
+
+error: `#[suggestion_part]` is not a valid attribute
+ --> $DIR/subdiagnostic-derive.rs:522:5
+ |
+LL | #[suggestion_part]
+ | ^^^^^^^^^^^^^^^^^^
+ |
+ = help: `#[suggestion_part(...)]` is only valid in multipart suggestions, use `#[primary_span]` instead
+
+error: `#[suggestion_part(...)]` is not a valid attribute
+ --> $DIR/subdiagnostic-derive.rs:525:5
+ |
+LL | #[suggestion_part(code = "...")]
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ |
+ = help: `#[suggestion_part(...)]` is only valid in multipart suggestions
+
+error: suggestion without `#[primary_span]` field
+ --> $DIR/subdiagnostic-derive.rs:519:1
|
-LL | / #[suggestion(parser::add_paren)]
+LL | / #[suggestion(parser::add_paren, code = "...")]
LL | |
-LL | | struct AN {
-LL | | #[primary_span]
+LL | | struct BA {
+LL | | #[suggestion_part]
... |
-LL | | applicability: Applicability,
+LL | | var: String,
LL | | }
| |_^
-error: invalid applicability
- --> $DIR/subdiagnostic-derive.rs:420:46
+error: `code` is not a valid nested attribute of a `multipart_suggestion` attribute
+ --> $DIR/subdiagnostic-derive.rs:534:43
|
-LL | #[suggestion(parser::add_paren, code ="...", applicability = "foo")]
- | ^^^^^^^^^^^^^^^^^^^^^
+LL | #[multipart_suggestion(parser::add_paren, code = "...", applicability = "machine-applicable")]
+ | ^^^^^^^^^^^^
-error: suggestion without `applicability`
- --> $DIR/subdiagnostic-derive.rs:438:1
+error: multipart suggestion without any `#[suggestion_part(...)]` fields
+ --> $DIR/subdiagnostic-derive.rs:534:1
|
-LL | / #[suggestion(parser::add_paren, code = "...")]
+LL | / #[multipart_suggestion(parser::add_paren, code = "...", applicability = "machine-applicable")]
LL | |
LL | |
-LL | | struct AR {
+LL | | struct BBa {
LL | | var: String,
LL | | }
| |_^
-error: suggestion without `#[primary_span]` field
- --> $DIR/subdiagnostic-derive.rs:438:1
+error: `#[suggestion_part(...)]` attribute without `code = "..."`
+ --> $DIR/subdiagnostic-derive.rs:544:5
|
-LL | / #[suggestion(parser::add_paren, code = "...")]
+LL | #[suggestion_part]
+ | ^^^^^^^^^^^^^^^^^^
+
+error: `#[suggestion_part(...)]` attribute without `code = "..."`
+ --> $DIR/subdiagnostic-derive.rs:552:5
+ |
+LL | #[suggestion_part()]
+ | ^^^^^^^^^^^^^^^^^^^^
+
+error: `#[primary_span]` is not a valid attribute
+ --> $DIR/subdiagnostic-derive.rs:561:5
+ |
+LL | #[primary_span]
+ | ^^^^^^^^^^^^^^^
+ |
+ = help: multipart suggestions use one or more `#[suggestion_part]`s rather than one `#[primary_span]`
+
+error: multipart suggestion without any `#[suggestion_part(...)]` fields
+ --> $DIR/subdiagnostic-derive.rs:558:1
+ |
+LL | / #[multipart_suggestion(parser::add_paren)]
LL | |
+LL | | struct BC {
+LL | | #[primary_span]
LL | |
-LL | | struct AR {
-LL | | var: String,
+LL | | span: Span,
LL | | }
| |_^
-error: unsupported type attribute for subdiagnostic enum
- --> $DIR/subdiagnostic-derive.rs:453:1
+error: `#[suggestion_part(...)]` attribute without `code = "..."`
+ --> $DIR/subdiagnostic-derive.rs:569:5
|
-LL | #[label]
- | ^^^^^^^^
+LL | #[suggestion_part]
+ | ^^^^^^^^^^^^^^^^^^
-error: `var` doesn't refer to a field on this type
- --> $DIR/subdiagnostic-derive.rs:473:39
+error: `#[suggestion_part(...)]` attribute without `code = "..."`
+ --> $DIR/subdiagnostic-derive.rs:572:5
|
-LL | #[suggestion(parser::add_paren, code ="{var}", applicability = "machine-applicable")]
- | ^^^^^^^
+LL | #[suggestion_part()]
+ | ^^^^^^^^^^^^^^^^^^^^
-error: `var` doesn't refer to a field on this type
- --> $DIR/subdiagnostic-derive.rs:492:43
+error: `#[suggestion_part(foo = ...)]` is not a valid attribute
+ --> $DIR/subdiagnostic-derive.rs:575:23
|
-LL | #[suggestion(parser::add_paren, code ="{var}", applicability = "machine-applicable")]
- | ^^^^^^^
+LL | #[suggestion_part(foo = "bar")]
+ | ^^^^^^^^^^^
+ |
+ = help: `code` is the only valid nested attribute
+
+error: the `#[suggestion_part(...)]` attribute can only be applied to fields of type `Span` or `MultiSpan`
+ --> $DIR/subdiagnostic-derive.rs:578:5
+ |
+LL | #[suggestion_part(code = "...")]
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: the `#[suggestion_part(...)]` attribute can only be applied to fields of type `Span` or `MultiSpan`
+ --> $DIR/subdiagnostic-derive.rs:581:5
+ |
+LL | #[suggestion_part()]
+ | ^^^^^^^^^^^^^^^^^^^^
+
+error: specified multiple times
+ --> $DIR/subdiagnostic-derive.rs:589:37
+ |
+LL | #[suggestion_part(code = "...", code = ",,,")]
+ | ^^^^^^^^^^^^
+ |
+note: previously specified here
+ --> $DIR/subdiagnostic-derive.rs:589:23
+ |
+LL | #[suggestion_part(code = "...", code = ",,,")]
+ | ^^^^^^^^^^^^
+
+error: specified multiple times
+ --> $DIR/subdiagnostic-derive.rs:619:5
+ |
+LL | #[applicability]
+ | ^^^^^^^^^^^^^^^^
+ |
+note: previously specified here
+ --> $DIR/subdiagnostic-derive.rs:616:43
+ |
+LL | #[multipart_suggestion(parser::add_paren, applicability = "machine-applicable")]
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: cannot find attribute `foo` in this scope
--> $DIR/subdiagnostic-derive.rs:63:3
LL | #[label(slug)]
| ^^^^ not found in `rustc_errors::fluent`
-error: aborting due to 50 previous errors
+error: aborting due to 64 previous errors
For more information about this error, try `rustc --explain E0425`.
projects / rust.git / commitdiff