| use hir::GenericParamKind; |
| use rustc_errors::{ |
| AddToDiagnostic, Applicability, Diagnostic, DiagnosticMessage, DiagnosticStyledString, |
| IntoDiagnosticArg, MultiSpan, SubdiagnosticMessage, |
| }; |
| use rustc_hir as hir; |
| use rustc_hir::FnRetTy; |
| use rustc_macros::{Diagnostic, Subdiagnostic}; |
| use rustc_middle::ty::print::TraitRefPrintOnlyTraitPath; |
| use rustc_middle::ty::{Binder, FnSig, Region, Ty, TyCtxt}; |
| use rustc_span::symbol::kw; |
| use rustc_span::Symbol; |
| use rustc_span::{symbol::Ident, BytePos, Span}; |
| |
| use crate::fluent_generated as fluent; |
| use crate::infer::error_reporting::{ |
| need_type_info::UnderspecifiedArgKind, nice_region_error::placeholder_error::Highlighted, |
| ObligationCauseAsDiagArg, |
| }; |
| |
| pub mod note_and_explain; |
| |
| #[derive(Diagnostic)] |
| #[diag(infer_opaque_hidden_type)] |
| pub struct OpaqueHiddenTypeDiag { |
| #[primary_span] |
| #[label] |
| pub span: Span, |
| #[note(infer_opaque_type)] |
| pub opaque_type: Span, |
| #[note(infer_hidden_type)] |
| pub hidden_type: Span, |
| } |
| |
| #[derive(Diagnostic)] |
| #[diag(infer_type_annotations_needed, code = "E0282")] |
| pub struct AnnotationRequired<'a> { |
| #[primary_span] |
| pub span: Span, |
| pub source_kind: &'static str, |
| pub source_name: &'a str, |
| #[label] |
| pub failure_span: Option<Span>, |
| #[subdiagnostic] |
| pub bad_label: Option<InferenceBadError<'a>>, |
| #[subdiagnostic] |
| pub infer_subdiags: Vec<SourceKindSubdiag<'a>>, |
| #[subdiagnostic] |
| pub multi_suggestions: Vec<SourceKindMultiSuggestion<'a>>, |
| } |
| |
| // Copy of `AnnotationRequired` for E0283 |
| #[derive(Diagnostic)] |
| #[diag(infer_type_annotations_needed, code = "E0283")] |
| pub struct AmbiguousImpl<'a> { |
| #[primary_span] |
| pub span: Span, |
| pub source_kind: &'static str, |
| pub source_name: &'a str, |
| #[label] |
| pub failure_span: Option<Span>, |
| #[subdiagnostic] |
| pub bad_label: Option<InferenceBadError<'a>>, |
| #[subdiagnostic] |
| pub infer_subdiags: Vec<SourceKindSubdiag<'a>>, |
| #[subdiagnostic] |
| pub multi_suggestions: Vec<SourceKindMultiSuggestion<'a>>, |
| } |
| |
| // Copy of `AnnotationRequired` for E0284 |
| #[derive(Diagnostic)] |
| #[diag(infer_type_annotations_needed, code = "E0284")] |
| pub struct AmbiguousReturn<'a> { |
| #[primary_span] |
| pub span: Span, |
| pub source_kind: &'static str, |
| pub source_name: &'a str, |
| #[label] |
| pub failure_span: Option<Span>, |
| #[subdiagnostic] |
| pub bad_label: Option<InferenceBadError<'a>>, |
| #[subdiagnostic] |
| pub infer_subdiags: Vec<SourceKindSubdiag<'a>>, |
| #[subdiagnostic] |
| pub multi_suggestions: Vec<SourceKindMultiSuggestion<'a>>, |
| } |
| |
| // Used when a better one isn't available |
| #[derive(Subdiagnostic)] |
| #[label(infer_label_bad)] |
| pub struct InferenceBadError<'a> { |
| #[primary_span] |
| pub span: Span, |
| pub bad_kind: &'static str, |
| pub prefix_kind: UnderspecifiedArgKind, |
| pub has_parent: bool, |
| pub prefix: &'a str, |
| pub parent_prefix: &'a str, |
| pub parent_name: String, |
| pub name: String, |
| } |
| |
| #[derive(Subdiagnostic)] |
| pub enum SourceKindSubdiag<'a> { |
| #[suggestion( |
| infer_source_kind_subdiag_let, |
| style = "verbose", |
| code = ": {type_name}", |
| applicability = "has-placeholders" |
| )] |
| LetLike { |
| #[primary_span] |
| span: Span, |
| name: String, |
| type_name: String, |
| kind: &'static str, |
| x_kind: &'static str, |
| prefix_kind: UnderspecifiedArgKind, |
| prefix: &'a str, |
| arg_name: String, |
| }, |
| #[label(infer_source_kind_subdiag_generic_label)] |
| GenericLabel { |
| #[primary_span] |
| span: Span, |
| is_type: bool, |
| param_name: String, |
| parent_exists: bool, |
| parent_prefix: String, |
| parent_name: String, |
| }, |
| #[suggestion( |
| infer_source_kind_subdiag_generic_suggestion, |
| style = "verbose", |
| code = "::<{args}>", |
| applicability = "has-placeholders" |
| )] |
| GenericSuggestion { |
| #[primary_span] |
| span: Span, |
| arg_count: usize, |
| args: String, |
| }, |
| } |
| |
| #[derive(Subdiagnostic)] |
| pub enum SourceKindMultiSuggestion<'a> { |
| #[multipart_suggestion( |
| infer_source_kind_fully_qualified, |
| style = "verbose", |
| applicability = "has-placeholders" |
| )] |
| FullyQualified { |
| #[suggestion_part(code = "{def_path}({adjustment}")] |
| span_lo: Span, |
| #[suggestion_part(code = "{successor_pos}")] |
| span_hi: Span, |
| def_path: String, |
| adjustment: &'a str, |
| successor_pos: &'a str, |
| }, |
| #[multipart_suggestion( |
| infer_source_kind_closure_return, |
| style = "verbose", |
| applicability = "has-placeholders" |
| )] |
| ClosureReturn { |
| #[suggestion_part(code = "{start_span_code}")] |
| start_span: Span, |
| start_span_code: String, |
| #[suggestion_part(code = " }}")] |
| end_span: Option<Span>, |
| }, |
| } |
| |
| impl<'a> SourceKindMultiSuggestion<'a> { |
| pub fn new_fully_qualified( |
| span: Span, |
| def_path: String, |
| adjustment: &'a str, |
| successor: (&'a str, BytePos), |
| ) -> Self { |
| Self::FullyQualified { |
| span_lo: span.shrink_to_lo(), |
| span_hi: span.shrink_to_hi().with_hi(successor.1), |
| def_path, |
| adjustment, |
| successor_pos: successor.0, |
| } |
| } |
| |
| pub fn new_closure_return( |
| ty_info: String, |
| data: &'a FnRetTy<'a>, |
| should_wrap_expr: Option<Span>, |
| ) -> Self { |
| let (arrow, post) = match data { |
| FnRetTy::DefaultReturn(_) => ("-> ", " "), |
| _ => ("", ""), |
| }; |
| let (start_span, start_span_code, end_span) = match should_wrap_expr { |
| Some(end_span) => (data.span(), format!("{arrow}{ty_info}{post}{{ "), Some(end_span)), |
| None => (data.span(), format!("{arrow}{ty_info}{post}"), None), |
| }; |
| Self::ClosureReturn { start_span, start_span_code, end_span } |
| } |
| } |
| |
| pub enum RegionOriginNote<'a> { |
| Plain { |
| span: Span, |
| msg: DiagnosticMessage, |
| }, |
| WithName { |
| span: Span, |
| msg: DiagnosticMessage, |
| name: &'a str, |
| continues: bool, |
| }, |
| WithRequirement { |
| span: Span, |
| requirement: ObligationCauseAsDiagArg<'a>, |
| expected_found: Option<(DiagnosticStyledString, DiagnosticStyledString)>, |
| }, |
| } |
| |
| impl AddToDiagnostic for RegionOriginNote<'_> { |
| fn add_to_diagnostic_with<F>(self, diag: &mut Diagnostic, _: F) |
| where |
| F: Fn(&mut Diagnostic, SubdiagnosticMessage) -> SubdiagnosticMessage, |
| { |
| let mut label_or_note = |span, msg: DiagnosticMessage| { |
| let sub_count = diag.children.iter().filter(|d| d.span.is_dummy()).count(); |
| let expanded_sub_count = diag.children.iter().filter(|d| !d.span.is_dummy()).count(); |
| let span_is_primary = diag.span.primary_spans().iter().all(|&sp| sp == span); |
| if span_is_primary && sub_count == 0 && expanded_sub_count == 0 { |
| diag.span_label(span, msg); |
| } else if span_is_primary && expanded_sub_count == 0 { |
| diag.note(msg); |
| } else { |
| diag.span_note(span, msg); |
| } |
| }; |
| match self { |
| RegionOriginNote::Plain { span, msg } => { |
| label_or_note(span, msg); |
| } |
| RegionOriginNote::WithName { span, msg, name, continues } => { |
| label_or_note(span, msg); |
| diag.set_arg("name", name); |
| diag.set_arg("continues", continues); |
| } |
| RegionOriginNote::WithRequirement { |
| span, |
| requirement, |
| expected_found: Some((expected, found)), |
| } => { |
| label_or_note(span, fluent::infer_subtype); |
| diag.set_arg("requirement", requirement); |
| |
| diag.note_expected_found(&"", expected, &"", found); |
| } |
| RegionOriginNote::WithRequirement { span, requirement, expected_found: None } => { |
| // FIXME: this really should be handled at some earlier stage. Our |
| // handling of region checking when type errors are present is |
| // *terrible*. |
| label_or_note(span, fluent::infer_subtype_2); |
| diag.set_arg("requirement", requirement); |
| } |
| }; |
| } |
| } |
| |
| pub enum LifetimeMismatchLabels { |
| InRet { |
| param_span: Span, |
| ret_span: Span, |
| span: Span, |
| label_var1: Option<Ident>, |
| }, |
| Normal { |
| hir_equal: bool, |
| ty_sup: Span, |
| ty_sub: Span, |
| span: Span, |
| sup: Option<Ident>, |
| sub: Option<Ident>, |
| }, |
| } |
| |
| impl AddToDiagnostic for LifetimeMismatchLabels { |
| fn add_to_diagnostic_with<F>(self, diag: &mut Diagnostic, _: F) |
| where |
| F: Fn(&mut Diagnostic, SubdiagnosticMessage) -> SubdiagnosticMessage, |
| { |
| match self { |
| LifetimeMismatchLabels::InRet { param_span, ret_span, span, label_var1 } => { |
| diag.span_label(param_span, fluent::infer_declared_different); |
| diag.span_label(ret_span, fluent::infer_nothing); |
| diag.span_label(span, fluent::infer_data_returned); |
| diag.set_arg("label_var1_exists", label_var1.is_some()); |
| diag.set_arg("label_var1", label_var1.map(|x| x.to_string()).unwrap_or_default()); |
| } |
| LifetimeMismatchLabels::Normal { |
| hir_equal, |
| ty_sup, |
| ty_sub, |
| span, |
| sup: label_var1, |
| sub: label_var2, |
| } => { |
| if hir_equal { |
| diag.span_label(ty_sup, fluent::infer_declared_multiple); |
| diag.span_label(ty_sub, fluent::infer_nothing); |
| diag.span_label(span, fluent::infer_data_lifetime_flow); |
| } else { |
| diag.span_label(ty_sup, fluent::infer_types_declared_different); |
| diag.span_label(ty_sub, fluent::infer_nothing); |
| diag.span_label(span, fluent::infer_data_flows); |
| diag.set_arg("label_var1_exists", label_var1.is_some()); |
| diag.set_arg( |
| "label_var1", |
| label_var1.map(|x| x.to_string()).unwrap_or_default(), |
| ); |
| diag.set_arg("label_var2_exists", label_var2.is_some()); |
| diag.set_arg( |
| "label_var2", |
| label_var2.map(|x| x.to_string()).unwrap_or_default(), |
| ); |
| } |
| } |
| } |
| } |
| } |
| |
| pub struct AddLifetimeParamsSuggestion<'a> { |
| pub tcx: TyCtxt<'a>, |
| pub sub: Region<'a>, |
| pub ty_sup: &'a hir::Ty<'a>, |
| pub ty_sub: &'a hir::Ty<'a>, |
| pub add_note: bool, |
| } |
| |
| impl AddToDiagnostic for AddLifetimeParamsSuggestion<'_> { |
| fn add_to_diagnostic_with<F>(self, diag: &mut Diagnostic, _: F) |
| where |
| F: Fn(&mut Diagnostic, SubdiagnosticMessage) -> SubdiagnosticMessage, |
| { |
| let mut mk_suggestion = || { |
| let ( |
| hir::Ty { kind: hir::TyKind::Ref(lifetime_sub, _), .. }, |
| hir::Ty { kind: hir::TyKind::Ref(lifetime_sup, _), .. }, |
| ) = (self.ty_sub, self.ty_sup) |
| else { |
| return false; |
| }; |
| |
| if !lifetime_sub.is_anonymous() || !lifetime_sup.is_anonymous() { |
| return false; |
| }; |
| |
| let Some(anon_reg) = self.tcx.is_suitable_region(self.sub) else { |
| return false; |
| }; |
| |
| let hir_id = self.tcx.hir().local_def_id_to_hir_id(anon_reg.def_id); |
| |
| let node = self.tcx.hir().get(hir_id); |
| let is_impl = matches!(&node, hir::Node::ImplItem(_)); |
| let generics = match node { |
| hir::Node::Item(&hir::Item { |
| kind: hir::ItemKind::Fn(_, ref generics, ..), |
| .. |
| }) |
| | hir::Node::TraitItem(&hir::TraitItem { ref generics, .. }) |
| | hir::Node::ImplItem(&hir::ImplItem { ref generics, .. }) => generics, |
| _ => return false, |
| }; |
| |
| let suggestion_param_name = generics |
| .params |
| .iter() |
| .filter(|p| matches!(p.kind, GenericParamKind::Lifetime { .. })) |
| .map(|p| p.name.ident().name) |
| .find(|i| *i != kw::UnderscoreLifetime); |
| let introduce_new = suggestion_param_name.is_none(); |
| let suggestion_param_name = |
| suggestion_param_name.map(|n| n.to_string()).unwrap_or_else(|| "'a".to_owned()); |
| |
| debug!(?lifetime_sup.ident.span); |
| debug!(?lifetime_sub.ident.span); |
| let make_suggestion = |ident: Ident| { |
| let sugg = if ident.name == kw::Empty { |
| format!("{suggestion_param_name}, ") |
| } else if ident.name == kw::UnderscoreLifetime && ident.span.is_empty() { |
| format!("{suggestion_param_name} ") |
| } else { |
| suggestion_param_name.clone() |
| }; |
| (ident.span, sugg) |
| }; |
| let mut suggestions = |
| vec![make_suggestion(lifetime_sub.ident), make_suggestion(lifetime_sup.ident)]; |
| |
| if introduce_new { |
| let new_param_suggestion = if let Some(first) = |
| generics.params.iter().find(|p| !p.name.ident().span.is_empty()) |
| { |
| (first.span.shrink_to_lo(), format!("{suggestion_param_name}, ")) |
| } else { |
| (generics.span, format!("<{suggestion_param_name}>")) |
| }; |
| |
| suggestions.push(new_param_suggestion); |
| } |
| |
| diag.multipart_suggestion( |
| fluent::infer_lifetime_param_suggestion, |
| suggestions, |
| Applicability::MaybeIncorrect, |
| ); |
| diag.set_arg("is_impl", is_impl); |
| true |
| }; |
| if mk_suggestion() && self.add_note { |
| diag.note(fluent::infer_lifetime_param_suggestion_elided); |
| } |
| } |
| } |
| |
| #[derive(Diagnostic)] |
| #[diag(infer_lifetime_mismatch, code = "E0623")] |
| pub struct LifetimeMismatch<'a> { |
| #[primary_span] |
| pub span: Span, |
| #[subdiagnostic] |
| pub labels: LifetimeMismatchLabels, |
| #[subdiagnostic] |
| pub suggestion: AddLifetimeParamsSuggestion<'a>, |
| } |
| |
| pub struct IntroducesStaticBecauseUnmetLifetimeReq { |
| pub unmet_requirements: MultiSpan, |
| pub binding_span: Span, |
| } |
| |
| impl AddToDiagnostic for IntroducesStaticBecauseUnmetLifetimeReq { |
| fn add_to_diagnostic_with<F>(mut self, diag: &mut Diagnostic, _: F) |
| where |
| F: Fn(&mut Diagnostic, SubdiagnosticMessage) -> SubdiagnosticMessage, |
| { |
| self.unmet_requirements |
| .push_span_label(self.binding_span, fluent::infer_msl_introduces_static); |
| diag.span_note(self.unmet_requirements, fluent::infer_msl_unmet_req); |
| } |
| } |
| |
| // FIXME(#100717): replace with a `Option<Span>` when subdiagnostic supports that |
| #[derive(Subdiagnostic)] |
| pub enum DoesNotOutliveStaticFromImpl { |
| #[note(infer_does_not_outlive_static_from_impl)] |
| Spanned { |
| #[primary_span] |
| span: Span, |
| }, |
| #[note(infer_does_not_outlive_static_from_impl)] |
| Unspanned, |
| } |
| |
| #[derive(Subdiagnostic)] |
| pub enum ImplicitStaticLifetimeSubdiag { |
| #[note(infer_implicit_static_lifetime_note)] |
| Note { |
| #[primary_span] |
| span: Span, |
| }, |
| #[suggestion( |
| infer_implicit_static_lifetime_suggestion, |
| style = "verbose", |
| code = " + '_", |
| applicability = "maybe-incorrect" |
| )] |
| Sugg { |
| #[primary_span] |
| span: Span, |
| }, |
| } |
| |
| #[derive(Diagnostic)] |
| #[diag(infer_mismatched_static_lifetime)] |
| pub struct MismatchedStaticLifetime<'a> { |
| #[primary_span] |
| pub cause_span: Span, |
| #[subdiagnostic] |
| pub unmet_lifetime_reqs: IntroducesStaticBecauseUnmetLifetimeReq, |
| #[subdiagnostic] |
| pub expl: Option<note_and_explain::RegionExplanation<'a>>, |
| #[subdiagnostic] |
| pub does_not_outlive_static_from_impl: DoesNotOutliveStaticFromImpl, |
| #[subdiagnostic] |
| pub implicit_static_lifetimes: Vec<ImplicitStaticLifetimeSubdiag>, |
| } |
| |
| #[derive(Diagnostic)] |
| pub enum ExplicitLifetimeRequired<'a> { |
| #[diag(infer_explicit_lifetime_required_with_ident, code = "E0621")] |
| WithIdent { |
| #[primary_span] |
| #[label] |
| span: Span, |
| simple_ident: Ident, |
| named: String, |
| #[suggestion( |
| infer_explicit_lifetime_required_sugg_with_ident, |
| code = "{new_ty}", |
| applicability = "unspecified" |
| )] |
| new_ty_span: Span, |
| #[skip_arg] |
| new_ty: Ty<'a>, |
| }, |
| #[diag(infer_explicit_lifetime_required_with_param_type, code = "E0621")] |
| WithParamType { |
| #[primary_span] |
| #[label] |
| span: Span, |
| named: String, |
| #[suggestion( |
| infer_explicit_lifetime_required_sugg_with_param_type, |
| code = "{new_ty}", |
| applicability = "unspecified" |
| )] |
| new_ty_span: Span, |
| #[skip_arg] |
| new_ty: Ty<'a>, |
| }, |
| } |
| |
| pub enum TyOrSig<'tcx> { |
| Ty(Highlighted<'tcx, Ty<'tcx>>), |
| ClosureSig(Highlighted<'tcx, Binder<'tcx, FnSig<'tcx>>>), |
| } |
| |
| impl IntoDiagnosticArg for TyOrSig<'_> { |
| fn into_diagnostic_arg(self) -> rustc_errors::DiagnosticArgValue<'static> { |
| match self { |
| TyOrSig::Ty(ty) => ty.into_diagnostic_arg(), |
| TyOrSig::ClosureSig(sig) => sig.into_diagnostic_arg(), |
| } |
| } |
| } |
| |
| #[derive(Subdiagnostic)] |
| pub enum ActualImplExplNotes<'tcx> { |
| #[note(infer_actual_impl_expl_expected_signature_two)] |
| ExpectedSignatureTwo { |
| leading_ellipsis: bool, |
| ty_or_sig: TyOrSig<'tcx>, |
| trait_path: Highlighted<'tcx, TraitRefPrintOnlyTraitPath<'tcx>>, |
| lifetime_1: usize, |
| lifetime_2: usize, |
| }, |
| #[note(infer_actual_impl_expl_expected_signature_any)] |
| ExpectedSignatureAny { |
| leading_ellipsis: bool, |
| ty_or_sig: TyOrSig<'tcx>, |
| trait_path: Highlighted<'tcx, TraitRefPrintOnlyTraitPath<'tcx>>, |
| lifetime_1: usize, |
| }, |
| #[note(infer_actual_impl_expl_expected_signature_some)] |
| ExpectedSignatureSome { |
| leading_ellipsis: bool, |
| ty_or_sig: TyOrSig<'tcx>, |
| trait_path: Highlighted<'tcx, TraitRefPrintOnlyTraitPath<'tcx>>, |
| lifetime_1: usize, |
| }, |
| #[note(infer_actual_impl_expl_expected_signature_nothing)] |
| ExpectedSignatureNothing { |
| leading_ellipsis: bool, |
| ty_or_sig: TyOrSig<'tcx>, |
| trait_path: Highlighted<'tcx, TraitRefPrintOnlyTraitPath<'tcx>>, |
| }, |
| #[note(infer_actual_impl_expl_expected_passive_two)] |
| ExpectedPassiveTwo { |
| leading_ellipsis: bool, |
| ty_or_sig: TyOrSig<'tcx>, |
| trait_path: Highlighted<'tcx, TraitRefPrintOnlyTraitPath<'tcx>>, |
| lifetime_1: usize, |
| lifetime_2: usize, |
| }, |
| #[note(infer_actual_impl_expl_expected_passive_any)] |
| ExpectedPassiveAny { |
| leading_ellipsis: bool, |
| ty_or_sig: TyOrSig<'tcx>, |
| trait_path: Highlighted<'tcx, TraitRefPrintOnlyTraitPath<'tcx>>, |
| lifetime_1: usize, |
| }, |
| #[note(infer_actual_impl_expl_expected_passive_some)] |
| ExpectedPassiveSome { |
| leading_ellipsis: bool, |
| ty_or_sig: TyOrSig<'tcx>, |
| trait_path: Highlighted<'tcx, TraitRefPrintOnlyTraitPath<'tcx>>, |
| lifetime_1: usize, |
| }, |
| #[note(infer_actual_impl_expl_expected_passive_nothing)] |
| ExpectedPassiveNothing { |
| leading_ellipsis: bool, |
| ty_or_sig: TyOrSig<'tcx>, |
| trait_path: Highlighted<'tcx, TraitRefPrintOnlyTraitPath<'tcx>>, |
| }, |
| #[note(infer_actual_impl_expl_expected_other_two)] |
| ExpectedOtherTwo { |
| leading_ellipsis: bool, |
| ty_or_sig: TyOrSig<'tcx>, |
| trait_path: Highlighted<'tcx, TraitRefPrintOnlyTraitPath<'tcx>>, |
| lifetime_1: usize, |
| lifetime_2: usize, |
| }, |
| #[note(infer_actual_impl_expl_expected_other_any)] |
| ExpectedOtherAny { |
| leading_ellipsis: bool, |
| ty_or_sig: TyOrSig<'tcx>, |
| trait_path: Highlighted<'tcx, TraitRefPrintOnlyTraitPath<'tcx>>, |
| lifetime_1: usize, |
| }, |
| #[note(infer_actual_impl_expl_expected_other_some)] |
| ExpectedOtherSome { |
| leading_ellipsis: bool, |
| ty_or_sig: TyOrSig<'tcx>, |
| trait_path: Highlighted<'tcx, TraitRefPrintOnlyTraitPath<'tcx>>, |
| lifetime_1: usize, |
| }, |
| #[note(infer_actual_impl_expl_expected_other_nothing)] |
| ExpectedOtherNothing { |
| leading_ellipsis: bool, |
| ty_or_sig: TyOrSig<'tcx>, |
| trait_path: Highlighted<'tcx, TraitRefPrintOnlyTraitPath<'tcx>>, |
| }, |
| #[note(infer_actual_impl_expl_but_actually_implements_trait)] |
| ButActuallyImplementsTrait { |
| trait_path: Highlighted<'tcx, TraitRefPrintOnlyTraitPath<'tcx>>, |
| has_lifetime: bool, |
| lifetime: usize, |
| }, |
| #[note(infer_actual_impl_expl_but_actually_implemented_for_ty)] |
| ButActuallyImplementedForTy { |
| trait_path: Highlighted<'tcx, TraitRefPrintOnlyTraitPath<'tcx>>, |
| has_lifetime: bool, |
| lifetime: usize, |
| ty: String, |
| }, |
| #[note(infer_actual_impl_expl_but_actually_ty_implements)] |
| ButActuallyTyImplements { |
| trait_path: Highlighted<'tcx, TraitRefPrintOnlyTraitPath<'tcx>>, |
| has_lifetime: bool, |
| lifetime: usize, |
| ty: String, |
| }, |
| } |
| |
| pub enum ActualImplExpectedKind { |
| Signature, |
| Passive, |
| Other, |
| } |
| |
| pub enum ActualImplExpectedLifetimeKind { |
| Two, |
| Any, |
| Some, |
| Nothing, |
| } |
| |
| impl<'tcx> ActualImplExplNotes<'tcx> { |
| pub fn new_expected( |
| kind: ActualImplExpectedKind, |
| lt_kind: ActualImplExpectedLifetimeKind, |
| leading_ellipsis: bool, |
| ty_or_sig: TyOrSig<'tcx>, |
| trait_path: Highlighted<'tcx, TraitRefPrintOnlyTraitPath<'tcx>>, |
| lifetime_1: usize, |
| lifetime_2: usize, |
| ) -> Self { |
| match (kind, lt_kind) { |
| (ActualImplExpectedKind::Signature, ActualImplExpectedLifetimeKind::Two) => { |
| Self::ExpectedSignatureTwo { |
| leading_ellipsis, |
| ty_or_sig, |
| trait_path, |
| lifetime_1, |
| lifetime_2, |
| } |
| } |
| (ActualImplExpectedKind::Signature, ActualImplExpectedLifetimeKind::Any) => { |
| Self::ExpectedSignatureAny { leading_ellipsis, ty_or_sig, trait_path, lifetime_1 } |
| } |
| (ActualImplExpectedKind::Signature, ActualImplExpectedLifetimeKind::Some) => { |
| Self::ExpectedSignatureSome { leading_ellipsis, ty_or_sig, trait_path, lifetime_1 } |
| } |
| (ActualImplExpectedKind::Signature, ActualImplExpectedLifetimeKind::Nothing) => { |
| Self::ExpectedSignatureNothing { leading_ellipsis, ty_or_sig, trait_path } |
| } |
| (ActualImplExpectedKind::Passive, ActualImplExpectedLifetimeKind::Two) => { |
| Self::ExpectedPassiveTwo { |
| leading_ellipsis, |
| ty_or_sig, |
| trait_path, |
| lifetime_1, |
| lifetime_2, |
| } |
| } |
| (ActualImplExpectedKind::Passive, ActualImplExpectedLifetimeKind::Any) => { |
| Self::ExpectedPassiveAny { leading_ellipsis, ty_or_sig, trait_path, lifetime_1 } |
| } |
| (ActualImplExpectedKind::Passive, ActualImplExpectedLifetimeKind::Some) => { |
| Self::ExpectedPassiveSome { leading_ellipsis, ty_or_sig, trait_path, lifetime_1 } |
| } |
| (ActualImplExpectedKind::Passive, ActualImplExpectedLifetimeKind::Nothing) => { |
| Self::ExpectedPassiveNothing { leading_ellipsis, ty_or_sig, trait_path } |
| } |
| (ActualImplExpectedKind::Other, ActualImplExpectedLifetimeKind::Two) => { |
| Self::ExpectedOtherTwo { |
| leading_ellipsis, |
| ty_or_sig, |
| trait_path, |
| lifetime_1, |
| lifetime_2, |
| } |
| } |
| (ActualImplExpectedKind::Other, ActualImplExpectedLifetimeKind::Any) => { |
| Self::ExpectedOtherAny { leading_ellipsis, ty_or_sig, trait_path, lifetime_1 } |
| } |
| (ActualImplExpectedKind::Other, ActualImplExpectedLifetimeKind::Some) => { |
| Self::ExpectedOtherSome { leading_ellipsis, ty_or_sig, trait_path, lifetime_1 } |
| } |
| (ActualImplExpectedKind::Other, ActualImplExpectedLifetimeKind::Nothing) => { |
| Self::ExpectedOtherNothing { leading_ellipsis, ty_or_sig, trait_path } |
| } |
| } |
| } |
| } |
| |
| #[derive(Diagnostic)] |
| #[diag(infer_trait_placeholder_mismatch)] |
| pub struct TraitPlaceholderMismatch<'tcx> { |
| #[primary_span] |
| pub span: Span, |
| #[label(infer_label_satisfy)] |
| pub satisfy_span: Option<Span>, |
| #[label(infer_label_where)] |
| pub where_span: Option<Span>, |
| #[label(infer_label_dup)] |
| pub dup_span: Option<Span>, |
| pub def_id: String, |
| pub trait_def_id: String, |
| |
| #[subdiagnostic] |
| pub actual_impl_expl_notes: Vec<ActualImplExplNotes<'tcx>>, |
| } |
| |
| pub struct ConsiderBorrowingParamHelp { |
| pub spans: Vec<Span>, |
| } |
| |
| impl AddToDiagnostic for ConsiderBorrowingParamHelp { |
| fn add_to_diagnostic_with<F>(self, diag: &mut Diagnostic, f: F) |
| where |
| F: Fn(&mut Diagnostic, SubdiagnosticMessage) -> SubdiagnosticMessage, |
| { |
| let mut type_param_span: MultiSpan = self.spans.clone().into(); |
| for &span in &self.spans { |
| // Seems like we can't call f() here as Into<DiagnosticMessage> is required |
| type_param_span.push_span_label(span, fluent::infer_tid_consider_borrowing); |
| } |
| let msg = f(diag, fluent::infer_tid_param_help.into()); |
| diag.span_help(type_param_span, msg); |
| } |
| } |
| |
| #[derive(Subdiagnostic)] |
| #[help(infer_tid_rel_help)] |
| pub struct RelationshipHelp; |
| |
| #[derive(Diagnostic)] |
| #[diag(infer_trait_impl_diff)] |
| pub struct TraitImplDiff { |
| #[primary_span] |
| #[label(infer_found)] |
| pub sp: Span, |
| #[label(infer_expected)] |
| pub trait_sp: Span, |
| #[note(infer_expected_found)] |
| pub note: (), |
| #[subdiagnostic] |
| pub param_help: ConsiderBorrowingParamHelp, |
| #[subdiagnostic] |
| // Seems like subdiagnostics are always pushed to the end, so this one |
| // also has to be a subdiagnostic to maintain order. |
| pub rel_help: Option<RelationshipHelp>, |
| pub expected: String, |
| pub found: String, |
| } |
| |
| pub struct DynTraitConstraintSuggestion { |
| pub span: Span, |
| pub ident: Ident, |
| } |
| |
| impl AddToDiagnostic for DynTraitConstraintSuggestion { |
| fn add_to_diagnostic_with<F>(self, diag: &mut Diagnostic, f: F) |
| where |
| F: Fn(&mut Diagnostic, SubdiagnosticMessage) -> SubdiagnosticMessage, |
| { |
| let mut multi_span: MultiSpan = vec![self.span].into(); |
| multi_span.push_span_label(self.span, fluent::infer_dtcs_has_lifetime_req_label); |
| multi_span.push_span_label(self.ident.span, fluent::infer_dtcs_introduces_requirement); |
| let msg = f(diag, fluent::infer_dtcs_has_req_note.into()); |
| diag.span_note(multi_span, msg); |
| let msg = f(diag, fluent::infer_dtcs_suggestion.into()); |
| diag.span_suggestion_verbose( |
| self.span.shrink_to_hi(), |
| msg, |
| " + '_", |
| Applicability::MaybeIncorrect, |
| ); |
| } |
| } |
| |
| #[derive(Diagnostic)] |
| #[diag(infer_but_calling_introduces, code = "E0772")] |
| pub struct ButCallingIntroduces { |
| #[label(infer_label1)] |
| pub param_ty_span: Span, |
| #[primary_span] |
| #[label(infer_label2)] |
| pub cause_span: Span, |
| |
| pub has_param_name: bool, |
| pub param_name: String, |
| pub has_lifetime: bool, |
| pub lifetime: String, |
| pub assoc_item: Symbol, |
| pub has_impl_path: bool, |
| pub impl_path: String, |
| } |
| |
| pub struct ReqIntroducedLocations { |
| pub span: MultiSpan, |
| pub spans: Vec<Span>, |
| pub fn_decl_span: Span, |
| pub cause_span: Span, |
| pub add_label: bool, |
| } |
| |
| impl AddToDiagnostic for ReqIntroducedLocations { |
| fn add_to_diagnostic_with<F>(mut self, diag: &mut Diagnostic, f: F) |
| where |
| F: Fn(&mut Diagnostic, SubdiagnosticMessage) -> SubdiagnosticMessage, |
| { |
| for sp in self.spans { |
| self.span.push_span_label(sp, fluent::infer_ril_introduced_here); |
| } |
| |
| if self.add_label { |
| self.span.push_span_label(self.fn_decl_span, fluent::infer_ril_introduced_by); |
| } |
| self.span.push_span_label(self.cause_span, fluent::infer_ril_because_of); |
| let msg = f(diag, fluent::infer_ril_static_introduced_by.into()); |
| diag.span_note(self.span, msg); |
| } |
| } |
| |
| pub struct MoreTargeted { |
| pub ident: Symbol, |
| } |
| |
| impl AddToDiagnostic for MoreTargeted { |
| fn add_to_diagnostic_with<F>(self, diag: &mut Diagnostic, _f: F) |
| where |
| F: Fn(&mut Diagnostic, SubdiagnosticMessage) -> SubdiagnosticMessage, |
| { |
| diag.code(rustc_errors::error_code!(E0772)); |
| diag.set_primary_message(fluent::infer_more_targeted); |
| diag.set_arg("ident", self.ident); |
| } |
| } |
| |
| #[derive(Diagnostic)] |
| #[diag(infer_but_needs_to_satisfy, code = "E0759")] |
| pub struct ButNeedsToSatisfy { |
| #[primary_span] |
| pub sp: Span, |
| #[label(infer_influencer)] |
| pub influencer_point: Span, |
| #[label(infer_used_here)] |
| pub spans: Vec<Span>, |
| #[label(infer_require)] |
| pub require_span_as_label: Option<Span>, |
| #[note(infer_require)] |
| pub require_span_as_note: Option<Span>, |
| #[note(infer_introduced_by_bound)] |
| pub bound: Option<Span>, |
| |
| #[subdiagnostic] |
| pub req_introduces_loc: Option<ReqIntroducedLocations>, |
| |
| pub has_param_name: bool, |
| pub param_name: String, |
| pub spans_empty: bool, |
| pub has_lifetime: bool, |
| pub lifetime: String, |
| } |
| |
| #[derive(Diagnostic)] |
| #[diag(infer_outlives_content, code = "E0312")] |
| pub struct OutlivesContent<'a> { |
| #[primary_span] |
| pub span: Span, |
| #[subdiagnostic] |
| pub notes: Vec<note_and_explain::RegionExplanation<'a>>, |
| } |
| |
| #[derive(Diagnostic)] |
| #[diag(infer_outlives_bound, code = "E0476")] |
| pub struct OutlivesBound<'a> { |
| #[primary_span] |
| pub span: Span, |
| #[subdiagnostic] |
| pub notes: Vec<note_and_explain::RegionExplanation<'a>>, |
| } |
| |
| #[derive(Diagnostic)] |
| #[diag(infer_fulfill_req_lifetime, code = "E0477")] |
| pub struct FulfillReqLifetime<'a> { |
| #[primary_span] |
| pub span: Span, |
| pub ty: Ty<'a>, |
| #[subdiagnostic] |
| pub note: Option<note_and_explain::RegionExplanation<'a>>, |
| } |
| |
| #[derive(Diagnostic)] |
| #[diag(infer_lf_bound_not_satisfied, code = "E0478")] |
| pub struct LfBoundNotSatisfied<'a> { |
| #[primary_span] |
| pub span: Span, |
| #[subdiagnostic] |
| pub notes: Vec<note_and_explain::RegionExplanation<'a>>, |
| } |
| |
| #[derive(Diagnostic)] |
| #[diag(infer_ref_longer_than_data, code = "E0491")] |
| pub struct RefLongerThanData<'a> { |
| #[primary_span] |
| pub span: Span, |
| pub ty: Ty<'a>, |
| #[subdiagnostic] |
| pub notes: Vec<note_and_explain::RegionExplanation<'a>>, |
| } |
| |
| #[derive(Subdiagnostic)] |
| pub enum WhereClauseSuggestions { |
| #[suggestion( |
| infer_where_remove, |
| code = "", |
| applicability = "machine-applicable", |
| style = "verbose" |
| )] |
| Remove { |
| #[primary_span] |
| span: Span, |
| }, |
| #[suggestion( |
| infer_where_copy_predicates, |
| code = "{space}where {trait_predicates}", |
| applicability = "machine-applicable", |
| style = "verbose" |
| )] |
| CopyPredicates { |
| #[primary_span] |
| span: Span, |
| space: &'static str, |
| trait_predicates: String, |
| }, |
| } |
| |
| #[derive(Subdiagnostic)] |
| pub enum SuggestRemoveSemiOrReturnBinding { |
| #[multipart_suggestion(infer_srs_remove_and_box, applicability = "machine-applicable")] |
| RemoveAndBox { |
| #[suggestion_part(code = "Box::new(")] |
| first_lo: Span, |
| #[suggestion_part(code = ")")] |
| first_hi: Span, |
| #[suggestion_part(code = "Box::new(")] |
| second_lo: Span, |
| #[suggestion_part(code = ")")] |
| second_hi: Span, |
| #[suggestion_part(code = "")] |
| sp: Span, |
| }, |
| #[suggestion( |
| infer_srs_remove, |
| style = "short", |
| code = "", |
| applicability = "machine-applicable" |
| )] |
| Remove { |
| #[primary_span] |
| sp: Span, |
| }, |
| #[suggestion( |
| infer_srs_add, |
| style = "verbose", |
| code = "{code}", |
| applicability = "maybe-incorrect" |
| )] |
| Add { |
| #[primary_span] |
| sp: Span, |
| code: String, |
| ident: Ident, |
| }, |
| #[note(infer_srs_add_one)] |
| AddOne { |
| #[primary_span] |
| spans: MultiSpan, |
| }, |
| } |
| |
| #[derive(Subdiagnostic)] |
| pub enum ConsiderAddingAwait { |
| #[help(infer_await_both_futures)] |
| BothFuturesHelp, |
| #[multipart_suggestion(infer_await_both_futures, applicability = "maybe-incorrect")] |
| BothFuturesSugg { |
| #[suggestion_part(code = ".await")] |
| first: Span, |
| #[suggestion_part(code = ".await")] |
| second: Span, |
| }, |
| #[suggestion( |
| infer_await_future, |
| code = ".await", |
| style = "verbose", |
| applicability = "maybe-incorrect" |
| )] |
| FutureSugg { |
| #[primary_span] |
| span: Span, |
| }, |
| #[note(infer_await_note)] |
| FutureSuggNote { |
| #[primary_span] |
| span: Span, |
| }, |
| #[multipart_suggestion( |
| infer_await_future, |
| style = "verbose", |
| applicability = "maybe-incorrect" |
| )] |
| FutureSuggMultiple { |
| #[suggestion_part(code = ".await")] |
| spans: Vec<Span>, |
| }, |
| } |
| |
| #[derive(Diagnostic)] |
| pub enum PlaceholderRelationLfNotSatisfied { |
| #[diag(infer_lf_bound_not_satisfied)] |
| HasBoth { |
| #[primary_span] |
| span: Span, |
| #[note(infer_prlf_defined_with_sub)] |
| sub_span: Span, |
| #[note(infer_prlf_must_outlive_with_sup)] |
| sup_span: Span, |
| sub_symbol: Symbol, |
| sup_symbol: Symbol, |
| #[note(infer_prlf_known_limitation)] |
| note: (), |
| }, |
| #[diag(infer_lf_bound_not_satisfied)] |
| HasSub { |
| #[primary_span] |
| span: Span, |
| #[note(infer_prlf_defined_with_sub)] |
| sub_span: Span, |
| #[note(infer_prlf_must_outlive_without_sup)] |
| sup_span: Span, |
| sub_symbol: Symbol, |
| #[note(infer_prlf_known_limitation)] |
| note: (), |
| }, |
| #[diag(infer_lf_bound_not_satisfied)] |
| HasSup { |
| #[primary_span] |
| span: Span, |
| #[note(infer_prlf_defined_without_sub)] |
| sub_span: Span, |
| #[note(infer_prlf_must_outlive_with_sup)] |
| sup_span: Span, |
| sup_symbol: Symbol, |
| #[note(infer_prlf_known_limitation)] |
| note: (), |
| }, |
| #[diag(infer_lf_bound_not_satisfied)] |
| HasNone { |
| #[primary_span] |
| span: Span, |
| #[note(infer_prlf_defined_without_sub)] |
| sub_span: Span, |
| #[note(infer_prlf_must_outlive_without_sup)] |
| sup_span: Span, |
| #[note(infer_prlf_known_limitation)] |
| note: (), |
| }, |
| #[diag(infer_lf_bound_not_satisfied)] |
| OnlyPrimarySpan { |
| #[primary_span] |
| span: Span, |
| #[note(infer_prlf_known_limitation)] |
| note: (), |
| }, |
| } |
| |
| #[derive(Diagnostic)] |
| #[diag(infer_opaque_captures_lifetime, code = "E0700")] |
| pub struct OpaqueCapturesLifetime<'tcx> { |
| #[primary_span] |
| pub span: Span, |
| #[label] |
| pub opaque_ty_span: Span, |
| pub opaque_ty: Ty<'tcx>, |
| } |
| |
| #[derive(Subdiagnostic)] |
| pub enum FunctionPointerSuggestion<'a> { |
| #[suggestion( |
| infer_fps_use_ref, |
| code = "&{fn_name}", |
| style = "verbose", |
| applicability = "maybe-incorrect" |
| )] |
| UseRef { |
| #[primary_span] |
| span: Span, |
| #[skip_arg] |
| fn_name: String, |
| }, |
| #[suggestion( |
| infer_fps_remove_ref, |
| code = "{fn_name}", |
| style = "verbose", |
| applicability = "maybe-incorrect" |
| )] |
| RemoveRef { |
| #[primary_span] |
| span: Span, |
| #[skip_arg] |
| fn_name: String, |
| }, |
| #[suggestion( |
| infer_fps_cast, |
| code = "&({fn_name} as {sig})", |
| style = "verbose", |
| applicability = "maybe-incorrect" |
| )] |
| CastRef { |
| #[primary_span] |
| span: Span, |
| #[skip_arg] |
| fn_name: String, |
| #[skip_arg] |
| sig: Binder<'a, FnSig<'a>>, |
| }, |
| #[suggestion( |
| infer_fps_cast, |
| code = "{fn_name} as {sig}", |
| style = "verbose", |
| applicability = "maybe-incorrect" |
| )] |
| Cast { |
| #[primary_span] |
| span: Span, |
| #[skip_arg] |
| fn_name: String, |
| #[skip_arg] |
| sig: Binder<'a, FnSig<'a>>, |
| }, |
| #[suggestion( |
| infer_fps_cast_both, |
| code = "{fn_name} as {found_sig}", |
| style = "hidden", |
| applicability = "maybe-incorrect" |
| )] |
| CastBoth { |
| #[primary_span] |
| span: Span, |
| #[skip_arg] |
| fn_name: String, |
| #[skip_arg] |
| found_sig: Binder<'a, FnSig<'a>>, |
| expected_sig: Binder<'a, FnSig<'a>>, |
| }, |
| #[suggestion( |
| infer_fps_cast_both, |
| code = "&({fn_name} as {found_sig})", |
| style = "hidden", |
| applicability = "maybe-incorrect" |
| )] |
| CastBothRef { |
| #[primary_span] |
| span: Span, |
| #[skip_arg] |
| fn_name: String, |
| #[skip_arg] |
| found_sig: Binder<'a, FnSig<'a>>, |
| expected_sig: Binder<'a, FnSig<'a>>, |
| }, |
| } |
| |
| #[derive(Subdiagnostic)] |
| #[note(infer_fps_items_are_distinct)] |
| pub struct FnItemsAreDistinct; |
| |
| #[derive(Subdiagnostic)] |
| #[note(infer_fn_uniq_types)] |
| pub struct FnUniqTypes; |
| |
| #[derive(Subdiagnostic)] |
| #[help(infer_fn_consider_casting)] |
| pub struct FnConsiderCasting { |
| pub casting: String, |
| } |
| |
| #[derive(Subdiagnostic)] |
| pub enum SuggestAccessingField<'a> { |
| #[suggestion( |
| infer_suggest_accessing_field, |
| code = "{snippet}.{name}", |
| applicability = "maybe-incorrect" |
| )] |
| Safe { |
| #[primary_span] |
| span: Span, |
| snippet: String, |
| name: Symbol, |
| ty: Ty<'a>, |
| }, |
| #[suggestion( |
| infer_suggest_accessing_field, |
| code = "unsafe {{ {snippet}.{name} }}", |
| applicability = "maybe-incorrect" |
| )] |
| Unsafe { |
| #[primary_span] |
| span: Span, |
| snippet: String, |
| name: Symbol, |
| ty: Ty<'a>, |
| }, |
| } |
| |
| #[derive(Subdiagnostic)] |
| pub enum SuggestBoxingForReturnImplTrait { |
| #[multipart_suggestion(infer_sbfrit_change_return_type, applicability = "maybe-incorrect")] |
| ChangeReturnType { |
| #[suggestion_part(code = "Box<dyn")] |
| start_sp: Span, |
| #[suggestion_part(code = ">")] |
| end_sp: Span, |
| }, |
| #[multipart_suggestion(infer_sbfrit_box_return_expr, applicability = "maybe-incorrect")] |
| BoxReturnExpr { |
| #[suggestion_part(code = "Box::new(")] |
| starts: Vec<Span>, |
| #[suggestion_part(code = ")")] |
| ends: Vec<Span>, |
| }, |
| } |
| |
| #[derive(Subdiagnostic)] |
| #[multipart_suggestion(infer_stp_wrap_one, applicability = "maybe-incorrect")] |
| pub struct SuggestTuplePatternOne { |
| pub variant: String, |
| #[suggestion_part(code = "{variant}(")] |
| pub span_low: Span, |
| #[suggestion_part(code = ")")] |
| pub span_high: Span, |
| } |
| |
| pub struct SuggestTuplePatternMany { |
| pub path: String, |
| pub cause_span: Span, |
| pub compatible_variants: Vec<String>, |
| } |
| |
| impl AddToDiagnostic for SuggestTuplePatternMany { |
| fn add_to_diagnostic_with<F>(self, diag: &mut rustc_errors::Diagnostic, f: F) |
| where |
| F: Fn(&mut Diagnostic, SubdiagnosticMessage) -> SubdiagnosticMessage, |
| { |
| diag.set_arg("path", self.path); |
| let message = f(diag, crate::fluent_generated::infer_stp_wrap_many.into()); |
| diag.multipart_suggestions( |
| message, |
| self.compatible_variants.into_iter().map(|variant| { |
| vec![ |
| (self.cause_span.shrink_to_lo(), format!("{variant}(")), |
| (self.cause_span.shrink_to_hi(), ")".to_string()), |
| ] |
| }), |
| rustc_errors::Applicability::MaybeIncorrect, |
| ); |
| } |
| } |
| |
| #[derive(Subdiagnostic)] |
| pub enum TypeErrorAdditionalDiags { |
| #[suggestion( |
| infer_meant_byte_literal, |
| code = "b'{code}'", |
| applicability = "machine-applicable" |
| )] |
| MeantByteLiteral { |
| #[primary_span] |
| span: Span, |
| code: String, |
| }, |
| #[suggestion( |
| infer_meant_char_literal, |
| code = "'{code}'", |
| applicability = "machine-applicable" |
| )] |
| MeantCharLiteral { |
| #[primary_span] |
| span: Span, |
| code: String, |
| }, |
| #[suggestion( |
| infer_meant_str_literal, |
| code = "\"{code}\"", |
| applicability = "machine-applicable" |
| )] |
| MeantStrLiteral { |
| #[primary_span] |
| span: Span, |
| code: String, |
| }, |
| #[suggestion( |
| infer_consider_specifying_length, |
| code = "{length}", |
| applicability = "maybe-incorrect" |
| )] |
| ConsiderSpecifyingLength { |
| #[primary_span] |
| span: Span, |
| length: u64, |
| }, |
| #[note(infer_try_cannot_convert)] |
| TryCannotConvert { found: String, expected: String }, |
| #[suggestion(infer_tuple_trailing_comma, code = ",", applicability = "machine-applicable")] |
| TupleOnlyComma { |
| #[primary_span] |
| span: Span, |
| }, |
| #[multipart_suggestion(infer_tuple_trailing_comma, applicability = "machine-applicable")] |
| TupleAlsoParentheses { |
| #[suggestion_part(code = "(")] |
| span_low: Span, |
| #[suggestion_part(code = ",)")] |
| span_high: Span, |
| }, |
| #[suggestion( |
| infer_suggest_add_let_for_letchains, |
| style = "verbose", |
| applicability = "machine-applicable", |
| code = "let " |
| )] |
| AddLetForLetChains { |
| #[primary_span] |
| span: Span, |
| }, |
| } |
| |
| #[derive(Diagnostic)] |
| pub enum ObligationCauseFailureCode { |
| #[diag(infer_oc_method_compat, code = "E0308")] |
| MethodCompat { |
| #[primary_span] |
| span: Span, |
| #[subdiagnostic] |
| subdiags: Vec<TypeErrorAdditionalDiags>, |
| }, |
| #[diag(infer_oc_type_compat, code = "E0308")] |
| TypeCompat { |
| #[primary_span] |
| span: Span, |
| #[subdiagnostic] |
| subdiags: Vec<TypeErrorAdditionalDiags>, |
| }, |
| #[diag(infer_oc_const_compat, code = "E0308")] |
| ConstCompat { |
| #[primary_span] |
| span: Span, |
| #[subdiagnostic] |
| subdiags: Vec<TypeErrorAdditionalDiags>, |
| }, |
| #[diag(infer_oc_try_compat, code = "E0308")] |
| TryCompat { |
| #[primary_span] |
| span: Span, |
| #[subdiagnostic] |
| subdiags: Vec<TypeErrorAdditionalDiags>, |
| }, |
| #[diag(infer_oc_match_compat, code = "E0308")] |
| MatchCompat { |
| #[primary_span] |
| span: Span, |
| #[subdiagnostic] |
| subdiags: Vec<TypeErrorAdditionalDiags>, |
| }, |
| #[diag(infer_oc_if_else_different, code = "E0308")] |
| IfElseDifferent { |
| #[primary_span] |
| span: Span, |
| #[subdiagnostic] |
| subdiags: Vec<TypeErrorAdditionalDiags>, |
| }, |
| #[diag(infer_oc_no_else, code = "E0317")] |
| NoElse { |
| #[primary_span] |
| span: Span, |
| }, |
| #[diag(infer_oc_no_diverge, code = "E0308")] |
| NoDiverge { |
| #[primary_span] |
| span: Span, |
| #[subdiagnostic] |
| subdiags: Vec<TypeErrorAdditionalDiags>, |
| }, |
| #[diag(infer_oc_fn_main_correct_type, code = "E0580")] |
| FnMainCorrectType { |
| #[primary_span] |
| span: Span, |
| }, |
| #[diag(infer_oc_fn_start_correct_type, code = "E0308")] |
| FnStartCorrectType { |
| #[primary_span] |
| span: Span, |
| #[subdiagnostic] |
| subdiags: Vec<TypeErrorAdditionalDiags>, |
| }, |
| #[diag(infer_oc_fn_lang_correct_type, code = "E0308")] |
| FnLangCorrectType { |
| #[primary_span] |
| span: Span, |
| #[subdiagnostic] |
| subdiags: Vec<TypeErrorAdditionalDiags>, |
| lang_item_name: Symbol, |
| }, |
| #[diag(infer_oc_intrinsic_correct_type, code = "E0308")] |
| IntrinsicCorrectType { |
| #[primary_span] |
| span: Span, |
| #[subdiagnostic] |
| subdiags: Vec<TypeErrorAdditionalDiags>, |
| }, |
| #[diag(infer_oc_method_correct_type, code = "E0308")] |
| MethodCorrectType { |
| #[primary_span] |
| span: Span, |
| #[subdiagnostic] |
| subdiags: Vec<TypeErrorAdditionalDiags>, |
| }, |
| #[diag(infer_oc_closure_selfref, code = "E0644")] |
| ClosureSelfref { |
| #[primary_span] |
| span: Span, |
| }, |
| #[diag(infer_oc_cant_coerce, code = "E0308")] |
| CantCoerce { |
| #[primary_span] |
| span: Span, |
| #[subdiagnostic] |
| subdiags: Vec<TypeErrorAdditionalDiags>, |
| }, |
| #[diag(infer_oc_generic, code = "E0308")] |
| Generic { |
| #[primary_span] |
| span: Span, |
| #[subdiagnostic] |
| subdiags: Vec<TypeErrorAdditionalDiags>, |
| }, |
| } |
