rustc_attr_parsing/
session_diagnostics.rs

1use std::num::IntErrorKind;
2
3use rustc_ast::{self as ast};
4use rustc_errors::codes::*;
5use rustc_errors::{
6    Applicability, Diag, DiagArgValue, DiagCtxtHandle, Diagnostic, EmissionGuarantee, Level,
7};
8use rustc_feature::AttributeTemplate;
9use rustc_hir::AttrPath;
10use rustc_macros::{Diagnostic, Subdiagnostic};
11use rustc_span::{Span, Symbol};
12
13use crate::fluent_generated as fluent;
14
15pub(crate) enum UnsupportedLiteralReason {
16    Generic,
17    CfgString,
18    CfgBoolean,
19}
20
21#[derive(Diagnostic)]
22#[diag(attr_parsing_expected_one_cfg_pattern, code = E0536)]
23pub(crate) struct ExpectedOneCfgPattern {
24    #[primary_span]
25    pub span: Span,
26}
27
28#[derive(Diagnostic)]
29#[diag(attr_parsing_invalid_predicate, code = E0537)]
30pub(crate) struct InvalidPredicate {
31    #[primary_span]
32    pub span: Span,
33
34    pub predicate: String,
35}
36
37/// Error code: E0541
38pub(crate) struct UnknownMetaItem<'a> {
39    pub span: Span,
40    pub item: String,
41    pub expected: &'a [&'a str],
42}
43
44// Manual implementation to be able to format `expected` items correctly.
45impl<'a, G: EmissionGuarantee> Diagnostic<'a, G> for UnknownMetaItem<'_> {
46    fn into_diag(self, dcx: DiagCtxtHandle<'a>, level: Level) -> Diag<'a, G> {
47        let expected = self.expected.iter().map(|name| format!("`{name}`")).collect::<Vec<_>>();
48        Diag::new(dcx, level, fluent::attr_parsing_unknown_meta_item)
49            .with_span(self.span)
50            .with_code(E0541)
51            .with_arg("item", self.item)
52            .with_arg("expected", expected.join(", "))
53            .with_span_label(self.span, fluent::attr_parsing_label)
54    }
55}
56
57#[derive(Diagnostic)]
58#[diag(attr_parsing_missing_since, code = E0542)]
59pub(crate) struct MissingSince {
60    #[primary_span]
61    pub span: Span,
62}
63
64#[derive(Diagnostic)]
65#[diag(attr_parsing_missing_note, code = E0543)]
66pub(crate) struct MissingNote {
67    #[primary_span]
68    pub span: Span,
69}
70
71#[derive(Diagnostic)]
72#[diag(attr_parsing_multiple_stability_levels, code = E0544)]
73pub(crate) struct MultipleStabilityLevels {
74    #[primary_span]
75    pub span: Span,
76}
77
78#[derive(Diagnostic)]
79#[diag(attr_parsing_invalid_issue_string, code = E0545)]
80pub(crate) struct InvalidIssueString {
81    #[primary_span]
82    pub span: Span,
83
84    #[subdiagnostic]
85    pub cause: Option<InvalidIssueStringCause>,
86}
87
88// The error kinds of `IntErrorKind` are duplicated here in order to allow the messages to be
89// translatable.
90#[derive(Subdiagnostic)]
91pub(crate) enum InvalidIssueStringCause {
92    #[label(attr_parsing_must_not_be_zero)]
93    MustNotBeZero {
94        #[primary_span]
95        span: Span,
96    },
97
98    #[label(attr_parsing_empty)]
99    Empty {
100        #[primary_span]
101        span: Span,
102    },
103
104    #[label(attr_parsing_invalid_digit)]
105    InvalidDigit {
106        #[primary_span]
107        span: Span,
108    },
109
110    #[label(attr_parsing_pos_overflow)]
111    PosOverflow {
112        #[primary_span]
113        span: Span,
114    },
115
116    #[label(attr_parsing_neg_overflow)]
117    NegOverflow {
118        #[primary_span]
119        span: Span,
120    },
121}
122
123impl InvalidIssueStringCause {
124    pub(crate) fn from_int_error_kind(span: Span, kind: &IntErrorKind) -> Option<Self> {
125        match kind {
126            IntErrorKind::Empty => Some(Self::Empty { span }),
127            IntErrorKind::InvalidDigit => Some(Self::InvalidDigit { span }),
128            IntErrorKind::PosOverflow => Some(Self::PosOverflow { span }),
129            IntErrorKind::NegOverflow => Some(Self::NegOverflow { span }),
130            IntErrorKind::Zero => Some(Self::MustNotBeZero { span }),
131            _ => None,
132        }
133    }
134}
135
136#[derive(Diagnostic)]
137#[diag(attr_parsing_missing_feature, code = E0546)]
138pub(crate) struct MissingFeature {
139    #[primary_span]
140    pub span: Span,
141}
142
143#[derive(Diagnostic)]
144#[diag(attr_parsing_non_ident_feature, code = E0546)]
145pub(crate) struct NonIdentFeature {
146    #[primary_span]
147    pub span: Span,
148}
149
150#[derive(Diagnostic)]
151#[diag(attr_parsing_missing_issue, code = E0547)]
152pub(crate) struct MissingIssue {
153    #[primary_span]
154    pub span: Span,
155}
156
157// FIXME: Why is this the same error code as `InvalidReprHintNoParen` and `InvalidReprHintNoValue`?
158// It is more similar to `IncorrectReprFormatGeneric`.
159#[derive(Diagnostic)]
160#[diag(attr_parsing_incorrect_repr_format_packed_one_or_zero_arg, code = E0552)]
161pub(crate) struct IncorrectReprFormatPackedOneOrZeroArg {
162    #[primary_span]
163    pub span: Span,
164}
165#[derive(Diagnostic)]
166#[diag(attr_parsing_incorrect_repr_format_packed_expect_integer, code = E0552)]
167pub(crate) struct IncorrectReprFormatPackedExpectInteger {
168    #[primary_span]
169    pub span: Span,
170}
171
172#[derive(Diagnostic)]
173#[diag(attr_parsing_invalid_repr_hint_no_paren, code = E0552)]
174pub(crate) struct InvalidReprHintNoParen {
175    #[primary_span]
176    pub span: Span,
177
178    pub name: Symbol,
179}
180
181#[derive(Diagnostic)]
182#[diag(attr_parsing_invalid_repr_hint_no_value, code = E0552)]
183pub(crate) struct InvalidReprHintNoValue {
184    #[primary_span]
185    pub span: Span,
186
187    pub name: Symbol,
188}
189
190/// Error code: E0565
191// FIXME(jdonszelmann): slowly phased out
192pub(crate) struct UnsupportedLiteral {
193    pub span: Span,
194    pub reason: UnsupportedLiteralReason,
195    pub is_bytestr: bool,
196    pub start_point_span: Span,
197}
198
199impl<'a, G: EmissionGuarantee> Diagnostic<'a, G> for UnsupportedLiteral {
200    fn into_diag(self, dcx: DiagCtxtHandle<'a>, level: Level) -> Diag<'a, G> {
201        let mut diag = Diag::new(
202            dcx,
203            level,
204            match self.reason {
205                UnsupportedLiteralReason::Generic => {
206                    fluent::attr_parsing_unsupported_literal_generic
207                }
208                UnsupportedLiteralReason::CfgString => {
209                    fluent::attr_parsing_unsupported_literal_cfg_string
210                }
211                UnsupportedLiteralReason::CfgBoolean => {
212                    fluent::attr_parsing_unsupported_literal_cfg_boolean
213                }
214            },
215        );
216        diag.span(self.span);
217        diag.code(E0565);
218        if self.is_bytestr {
219            diag.span_suggestion(
220                self.start_point_span,
221                fluent::attr_parsing_unsupported_literal_suggestion,
222                "",
223                Applicability::MaybeIncorrect,
224            );
225        }
226        diag
227    }
228}
229
230#[derive(Diagnostic)]
231#[diag(attr_parsing_invalid_repr_align_need_arg, code = E0589)]
232pub(crate) struct InvalidReprAlignNeedArg {
233    #[primary_span]
234    #[suggestion(code = "align(...)", applicability = "has-placeholders")]
235    pub span: Span,
236}
237
238#[derive(Diagnostic)]
239#[diag(attr_parsing_invalid_repr_generic, code = E0589)]
240pub(crate) struct InvalidReprGeneric<'a> {
241    #[primary_span]
242    pub span: Span,
243
244    pub repr_arg: String,
245    pub error_part: &'a str,
246}
247
248#[derive(Diagnostic)]
249#[diag(attr_parsing_incorrect_repr_format_align_one_arg, code = E0693)]
250pub(crate) struct IncorrectReprFormatAlignOneArg {
251    #[primary_span]
252    pub span: Span,
253}
254
255#[derive(Diagnostic)]
256#[diag(attr_parsing_incorrect_repr_format_expect_literal_integer, code = E0693)]
257pub(crate) struct IncorrectReprFormatExpectInteger {
258    #[primary_span]
259    pub span: Span,
260}
261
262#[derive(Diagnostic)]
263#[diag(attr_parsing_incorrect_repr_format_generic, code = E0693)]
264pub(crate) struct IncorrectReprFormatGeneric {
265    #[primary_span]
266    pub span: Span,
267
268    pub repr_arg: Symbol,
269
270    #[subdiagnostic]
271    pub cause: Option<IncorrectReprFormatGenericCause>,
272}
273
274#[derive(Subdiagnostic)]
275pub(crate) enum IncorrectReprFormatGenericCause {
276    #[suggestion(
277        attr_parsing_suggestion,
278        code = "{name}({value})",
279        applicability = "machine-applicable"
280    )]
281    Int {
282        #[primary_span]
283        span: Span,
284
285        #[skip_arg]
286        name: Symbol,
287
288        #[skip_arg]
289        value: u128,
290    },
291
292    #[suggestion(
293        attr_parsing_suggestion,
294        code = "{name}({value})",
295        applicability = "machine-applicable"
296    )]
297    Symbol {
298        #[primary_span]
299        span: Span,
300
301        #[skip_arg]
302        name: Symbol,
303
304        #[skip_arg]
305        value: Symbol,
306    },
307}
308
309impl IncorrectReprFormatGenericCause {
310    pub(crate) fn from_lit_kind(span: Span, kind: &ast::LitKind, name: Symbol) -> Option<Self> {
311        match *kind {
312            ast::LitKind::Int(value, ast::LitIntType::Unsuffixed) => {
313                Some(Self::Int { span, name, value: value.get() })
314            }
315            ast::LitKind::Str(value, _) => Some(Self::Symbol { span, name, value }),
316            _ => None,
317        }
318    }
319}
320
321#[derive(Diagnostic)]
322#[diag(attr_parsing_rustc_promotable_pairing, code = E0717)]
323pub(crate) struct RustcPromotablePairing {
324    #[primary_span]
325    pub span: Span,
326}
327
328#[derive(Diagnostic)]
329#[diag(attr_parsing_rustc_allowed_unstable_pairing, code = E0789)]
330pub(crate) struct RustcAllowedUnstablePairing {
331    #[primary_span]
332    pub span: Span,
333}
334
335#[derive(Diagnostic)]
336#[diag(attr_parsing_cfg_predicate_identifier)]
337pub(crate) struct CfgPredicateIdentifier {
338    #[primary_span]
339    pub span: Span,
340}
341
342#[derive(Diagnostic)]
343#[diag(attr_parsing_deprecated_item_suggestion)]
344pub(crate) struct DeprecatedItemSuggestion {
345    #[primary_span]
346    pub span: Span,
347
348    #[help]
349    pub is_nightly: bool,
350
351    #[note]
352    pub details: (),
353}
354
355#[derive(Diagnostic)]
356#[diag(attr_parsing_expected_single_version_literal)]
357pub(crate) struct ExpectedSingleVersionLiteral {
358    #[primary_span]
359    pub span: Span,
360}
361
362#[derive(Diagnostic)]
363#[diag(attr_parsing_expected_version_literal)]
364pub(crate) struct ExpectedVersionLiteral {
365    #[primary_span]
366    pub span: Span,
367}
368
369#[derive(Diagnostic)]
370#[diag(attr_parsing_expects_feature_list)]
371pub(crate) struct ExpectsFeatureList {
372    #[primary_span]
373    pub span: Span,
374
375    pub name: String,
376}
377
378#[derive(Diagnostic)]
379#[diag(attr_parsing_expects_features)]
380pub(crate) struct ExpectsFeatures {
381    #[primary_span]
382    pub span: Span,
383
384    pub name: String,
385}
386
387#[derive(Diagnostic)]
388#[diag(attr_parsing_invalid_since)]
389pub(crate) struct InvalidSince {
390    #[primary_span]
391    pub span: Span,
392}
393
394#[derive(Diagnostic)]
395#[diag(attr_parsing_soft_no_args)]
396pub(crate) struct SoftNoArgs {
397    #[primary_span]
398    pub span: Span,
399}
400
401#[derive(Diagnostic)]
402#[diag(attr_parsing_unknown_version_literal)]
403pub(crate) struct UnknownVersionLiteral {
404    #[primary_span]
405    pub span: Span,
406}
407
408// FIXME(jdonszelmann) duplicated from `rustc_passes`, remove once `check_attr` is integrated.
409#[derive(Diagnostic)]
410#[diag(attr_parsing_unused_multiple)]
411pub(crate) struct UnusedMultiple {
412    #[primary_span]
413    #[suggestion(code = "", applicability = "machine-applicable")]
414    pub this: Span,
415    #[note]
416    pub other: Span,
417    pub name: Symbol,
418}
419
420#[derive(Diagnostic)]
421#[diag(attr_parsing_ill_formed_attribute_input)]
422pub(crate) struct IllFormedAttributeInputLint {
423    #[primary_span]
424    pub span: Span,
425    pub num_suggestions: usize,
426    pub suggestions: DiagArgValue,
427}
428
429#[derive(Diagnostic)]
430#[diag(attr_parsing_null_on_export, code = E0648)]
431pub(crate) struct NullOnExport {
432    #[primary_span]
433    pub span: Span,
434}
435
436#[derive(Diagnostic)]
437#[diag(attr_parsing_null_on_link_section, code = E0648)]
438pub(crate) struct NullOnLinkSection {
439    #[primary_span]
440    pub span: Span,
441}
442
443#[derive(Diagnostic)]
444#[diag(attr_parsing_null_on_objc_class)]
445pub(crate) struct NullOnObjcClass {
446    #[primary_span]
447    pub span: Span,
448}
449
450#[derive(Diagnostic)]
451#[diag(attr_parsing_null_on_objc_selector)]
452pub(crate) struct NullOnObjcSelector {
453    #[primary_span]
454    pub span: Span,
455}
456
457#[derive(Diagnostic)]
458#[diag(attr_parsing_objc_class_expected_string_literal)]
459pub(crate) struct ObjcClassExpectedStringLiteral {
460    #[primary_span]
461    pub span: Span,
462}
463
464#[derive(Diagnostic)]
465#[diag(attr_parsing_objc_selector_expected_string_literal)]
466pub(crate) struct ObjcSelectorExpectedStringLiteral {
467    #[primary_span]
468    pub span: Span,
469}
470
471#[derive(Diagnostic)]
472#[diag(attr_parsing_stability_outside_std, code = E0734)]
473pub(crate) struct StabilityOutsideStd {
474    #[primary_span]
475    pub span: Span,
476}
477
478#[derive(Diagnostic)]
479#[diag(attr_parsing_empty_confusables)]
480pub(crate) struct EmptyConfusables {
481    #[primary_span]
482    pub span: Span,
483}
484
485#[derive(Diagnostic)]
486#[help]
487#[diag(attr_parsing_invalid_target)]
488pub(crate) struct InvalidTarget {
489    #[primary_span]
490    #[suggestion(code = "", applicability = "machine-applicable", style = "tool-only")]
491    pub span: Span,
492    pub name: AttrPath,
493    pub target: &'static str,
494    pub applied: DiagArgValue,
495    pub only: &'static str,
496}
497
498#[derive(Diagnostic)]
499#[diag(attr_parsing_invalid_alignment_value, code = E0589)]
500pub(crate) struct InvalidAlignmentValue {
501    #[primary_span]
502    pub span: Span,
503    pub error_part: &'static str,
504}
505
506#[derive(Diagnostic)]
507#[diag(attr_parsing_repr_ident, code = E0565)]
508pub(crate) struct ReprIdent {
509    #[primary_span]
510    pub span: Span,
511}
512
513#[derive(Diagnostic)]
514#[diag(attr_parsing_unrecognized_repr_hint, code = E0552)]
515#[help]
516#[note]
517pub(crate) struct UnrecognizedReprHint {
518    #[primary_span]
519    pub span: Span,
520}
521
522#[derive(Diagnostic)]
523#[diag(attr_parsing_unstable_feature_bound_incompatible_stability)]
524#[help]
525pub(crate) struct UnstableFeatureBoundIncompatibleStability {
526    #[primary_span]
527    pub span: Span,
528}
529
530#[derive(Diagnostic)]
531#[diag(attr_parsing_naked_functions_incompatible_attribute, code = E0736)]
532pub(crate) struct NakedFunctionIncompatibleAttribute {
533    #[primary_span]
534    #[label]
535    pub span: Span,
536    #[label(attr_parsing_naked_attribute)]
537    pub naked_span: Span,
538    pub attr: String,
539}
540
541#[derive(Diagnostic)]
542#[diag(attr_parsing_link_ordinal_out_of_range)]
543#[note]
544pub(crate) struct LinkOrdinalOutOfRange {
545    #[primary_span]
546    pub span: Span,
547    pub ordinal: u128,
548}
549
550pub(crate) enum AttributeParseErrorReason<'a> {
551    ExpectedNoArgs,
552    ExpectedStringLiteral {
553        byte_string: Option<Span>,
554    },
555    ExpectedIntegerLiteral,
556    ExpectedAtLeastOneArgument,
557    ExpectedSingleArgument,
558    ExpectedList,
559    UnexpectedLiteral,
560    ExpectedNameValue(Option<Symbol>),
561    DuplicateKey(Symbol),
562    ExpectedSpecificArgument {
563        possibilities: &'a [Symbol],
564        strings: bool,
565        /// Should we tell the user to write a list when they didn't?
566        list: bool,
567    },
568    ExpectedIdentifier,
569}
570
571/// A description of a thing that can be parsed using an attribute parser.
572#[derive(Copy, Clone)]
573pub enum ParsedDescription {
574    /// Used when parsing attributes.
575    Attribute,
576    /// Used when parsing some macros, such as the `cfg!()` macro.
577    Macro,
578}
579
580pub(crate) struct AttributeParseError<'a> {
581    pub(crate) span: Span,
582    pub(crate) attr_span: Span,
583    pub(crate) template: AttributeTemplate,
584    pub(crate) path: AttrPath,
585    pub(crate) description: ParsedDescription,
586    pub(crate) reason: AttributeParseErrorReason<'a>,
587    pub(crate) suggestions: Vec<String>,
588}
589
590impl<'a, G: EmissionGuarantee> Diagnostic<'a, G> for AttributeParseError<'_> {
591    fn into_diag(self, dcx: DiagCtxtHandle<'a>, level: Level) -> Diag<'a, G> {
592        let name = self.path.to_string();
593
594        let description = match self.description {
595            ParsedDescription::Attribute => "attribute",
596            ParsedDescription::Macro => "macro",
597        };
598
599        let mut diag = Diag::new(dcx, level, format!("malformed `{name}` {description} input"));
600        diag.span(self.attr_span);
601        diag.code(E0539);
602        match self.reason {
603            AttributeParseErrorReason::ExpectedStringLiteral { byte_string } => {
604                if let Some(start_point_span) = byte_string {
605                    diag.span_suggestion(
606                        start_point_span,
607                        fluent::attr_parsing_unsupported_literal_suggestion,
608                        "",
609                        Applicability::MaybeIncorrect,
610                    );
611                    diag.note("expected a normal string literal, not a byte string literal");
612
613                    return diag;
614                } else {
615                    diag.span_label(self.span, "expected a string literal here");
616                }
617            }
618            AttributeParseErrorReason::ExpectedIntegerLiteral => {
619                diag.span_label(self.span, "expected an integer literal here");
620            }
621            AttributeParseErrorReason::ExpectedSingleArgument => {
622                diag.span_label(self.span, "expected a single argument here");
623                diag.code(E0805);
624            }
625            AttributeParseErrorReason::ExpectedAtLeastOneArgument => {
626                diag.span_label(self.span, "expected at least 1 argument here");
627            }
628            AttributeParseErrorReason::ExpectedList => {
629                diag.span_label(self.span, "expected this to be a list");
630            }
631            AttributeParseErrorReason::DuplicateKey(key) => {
632                diag.span_label(self.span, format!("found `{key}` used as a key more than once"));
633                diag.code(E0538);
634            }
635            AttributeParseErrorReason::UnexpectedLiteral => {
636                diag.span_label(self.span, "didn't expect a literal here");
637                diag.code(E0565);
638            }
639            AttributeParseErrorReason::ExpectedNoArgs => {
640                diag.span_label(self.span, "didn't expect any arguments here");
641                diag.code(E0565);
642            }
643            AttributeParseErrorReason::ExpectedNameValue(None) => {
644                // If the span is the entire attribute, the suggestion we add below this match already contains enough information
645                if self.span != self.attr_span {
646                    diag.span_label(
647                        self.span,
648                        format!("expected this to be of the form `... = \"...\"`"),
649                    );
650                }
651            }
652            AttributeParseErrorReason::ExpectedNameValue(Some(name)) => {
653                diag.span_label(
654                    self.span,
655                    format!("expected this to be of the form `{name} = \"...\"`"),
656                );
657            }
658            AttributeParseErrorReason::ExpectedSpecificArgument {
659                possibilities,
660                strings,
661                list: false,
662            } => {
663                let quote = if strings { '"' } else { '`' };
664                match possibilities {
665                    &[] => {}
666                    &[x] => {
667                        diag.span_label(
668                            self.span,
669                            format!("the only valid argument here is {quote}{x}{quote}"),
670                        );
671                    }
672                    [first, second] => {
673                        diag.span_label(self.span, format!("valid arguments are {quote}{first}{quote} or {quote}{second}{quote}"));
674                    }
675                    [first @ .., second_to_last, last] => {
676                        let mut res = String::new();
677                        for i in first {
678                            res.push_str(&format!("{quote}{i}{quote}, "));
679                        }
680                        res.push_str(&format!(
681                            "{quote}{second_to_last}{quote} or {quote}{last}{quote}"
682                        ));
683
684                        diag.span_label(self.span, format!("valid arguments are {res}"));
685                    }
686                }
687            }
688            AttributeParseErrorReason::ExpectedSpecificArgument {
689                possibilities,
690                strings,
691                list: true,
692            } => {
693                let quote = if strings { '"' } else { '`' };
694                match possibilities {
695                    &[] => {}
696                    &[x] => {
697                        diag.span_label(
698                            self.span,
699                            format!(
700                                "this {description} is only valid with {quote}{x}{quote} as an argument"
701                            ),
702                        );
703                    }
704                    [first, second] => {
705                        diag.span_label(self.span, format!("this {description} is only valid with either {quote}{first}{quote} or {quote}{second}{quote} as an argument"));
706                    }
707                    [first @ .., second_to_last, last] => {
708                        let mut res = String::new();
709                        for i in first {
710                            res.push_str(&format!("{quote}{i}{quote}, "));
711                        }
712                        res.push_str(&format!(
713                            "{quote}{second_to_last}{quote} or {quote}{last}{quote}"
714                        ));
715
716                        diag.span_label(self.span, format!("this {description} is only valid with one of the following arguments: {res}"));
717                    }
718                }
719            }
720            AttributeParseErrorReason::ExpectedIdentifier => {
721                diag.span_label(self.span, "expected a valid identifier here");
722            }
723        }
724
725        if let Some(link) = self.template.docs {
726            diag.note(format!("for more information, visit <{link}>"));
727        }
728
729        diag.span_suggestions(
730            self.attr_span,
731            if self.suggestions.len() == 1 {
732                "must be of the form".to_string()
733            } else {
734                format!("try changing it to one of the following valid forms of the {description}")
735            },
736            self.suggestions,
737            Applicability::HasPlaceholders,
738        );
739
740        diag
741    }
742}
743
744#[derive(Diagnostic)]
745#[diag(attr_parsing_invalid_attr_unsafe)]
746#[note]
747pub(crate) struct InvalidAttrUnsafe {
748    #[primary_span]
749    #[label]
750    pub span: Span,
751    pub name: AttrPath,
752}
753
754#[derive(Diagnostic)]
755#[diag(attr_parsing_unsafe_attr_outside_unsafe)]
756pub(crate) struct UnsafeAttrOutsideUnsafe {
757    #[primary_span]
758    #[label]
759    pub span: Span,
760    #[subdiagnostic]
761    pub suggestion: Option<UnsafeAttrOutsideUnsafeSuggestion>,
762}
763
764#[derive(Subdiagnostic)]
765#[multipart_suggestion(
766    attr_parsing_unsafe_attr_outside_unsafe_suggestion,
767    applicability = "machine-applicable"
768)]
769pub(crate) struct UnsafeAttrOutsideUnsafeSuggestion {
770    #[suggestion_part(code = "unsafe(")]
771    pub left: Span,
772    #[suggestion_part(code = ")")]
773    pub right: Span,
774}
775
776#[derive(Diagnostic)]
777#[diag(attr_parsing_meta_bad_delim)]
778pub(crate) struct MetaBadDelim {
779    #[primary_span]
780    pub span: Span,
781    #[subdiagnostic]
782    pub sugg: MetaBadDelimSugg,
783}
784
785#[derive(Subdiagnostic)]
786#[multipart_suggestion(
787    attr_parsing_meta_bad_delim_suggestion,
788    applicability = "machine-applicable"
789)]
790pub(crate) struct MetaBadDelimSugg {
791    #[suggestion_part(code = "(")]
792    pub open: Span,
793    #[suggestion_part(code = ")")]
794    pub close: Span,
795}
796
797#[derive(Diagnostic)]
798#[diag(attr_parsing_invalid_meta_item)]
799pub(crate) struct InvalidMetaItem {
800    #[primary_span]
801    pub span: Span,
802    pub descr: String,
803    #[subdiagnostic]
804    pub quote_ident_sugg: Option<InvalidMetaItemQuoteIdentSugg>,
805    #[subdiagnostic]
806    pub remove_neg_sugg: Option<InvalidMetaItemRemoveNegSugg>,
807    #[label]
808    pub label: Option<Span>,
809}
810
811#[derive(Subdiagnostic)]
812#[multipart_suggestion(attr_parsing_quote_ident_sugg, applicability = "machine-applicable")]
813pub(crate) struct InvalidMetaItemQuoteIdentSugg {
814    #[suggestion_part(code = "\"")]
815    pub before: Span,
816    #[suggestion_part(code = "\"")]
817    pub after: Span,
818}
819
820#[derive(Subdiagnostic)]
821#[multipart_suggestion(attr_parsing_remove_neg_sugg, applicability = "machine-applicable")]
822pub(crate) struct InvalidMetaItemRemoveNegSugg {
823    #[suggestion_part(code = "")]
824    pub negative_sign: Span,
825}
826
827#[derive(Diagnostic)]
828#[diag(attr_parsing_suffixed_literal_in_attribute)]
829#[help]
830pub(crate) struct SuffixedLiteralInAttribute {
831    #[primary_span]
832    pub span: Span,
833}
834
835#[derive(Diagnostic)]
836#[diag(attr_parsing_empty_link_name, code = E0454)]
837pub(crate) struct EmptyLinkName {
838    #[primary_span]
839    #[label]
840    pub span: Span,
841}
842
843#[derive(Diagnostic)]
844#[diag(attr_parsing_link_framework_apple, code = E0455)]
845pub(crate) struct LinkFrameworkApple {
846    #[primary_span]
847    pub span: Span,
848}
849
850#[derive(Diagnostic)]
851#[diag(attr_parsing_incompatible_wasm_link)]
852pub(crate) struct IncompatibleWasmLink {
853    #[primary_span]
854    pub span: Span,
855}
856
857#[derive(Diagnostic)]
858#[diag(attr_parsing_link_requires_name, code = E0459)]
859pub(crate) struct LinkRequiresName {
860    #[primary_span]
861    #[label]
862    pub span: Span,
863}
864
865#[derive(Diagnostic)]
866#[diag(attr_parsing_raw_dylib_no_nul)]
867pub(crate) struct RawDylibNoNul {
868    #[primary_span]
869    pub span: Span,
870}
871
872#[derive(Diagnostic)]
873#[diag(attr_parsing_raw_dylib_only_windows, code = E0455)]
874pub(crate) struct RawDylibOnlyWindows {
875    #[primary_span]
876    pub span: Span,
877}
878
879#[derive(Diagnostic)]
880#[diag(attr_parsing_invalid_link_modifier)]
881pub(crate) struct InvalidLinkModifier {
882    #[primary_span]
883    pub span: Span,
884}
885
886#[derive(Diagnostic)]
887#[diag(attr_parsing_multiple_modifiers)]
888pub(crate) struct MultipleModifiers {
889    #[primary_span]
890    pub span: Span,
891    pub modifier: Symbol,
892}
893
894#[derive(Diagnostic)]
895#[diag(attr_parsing_import_name_type_x86)]
896pub(crate) struct ImportNameTypeX86 {
897    #[primary_span]
898    pub span: Span,
899}
900
901#[derive(Diagnostic)]
902#[diag(attr_parsing_bundle_needs_static)]
903pub(crate) struct BundleNeedsStatic {
904    #[primary_span]
905    pub span: Span,
906}
907
908#[derive(Diagnostic)]
909#[diag(attr_parsing_whole_archive_needs_static)]
910pub(crate) struct WholeArchiveNeedsStatic {
911    #[primary_span]
912    pub span: Span,
913}
914
915#[derive(Diagnostic)]
916#[diag(attr_parsing_as_needed_compatibility)]
917pub(crate) struct AsNeededCompatibility {
918    #[primary_span]
919    pub span: Span,
920}
921
922#[derive(Diagnostic)]
923#[diag(attr_parsing_import_name_type_raw)]
924pub(crate) struct ImportNameTypeRaw {
925    #[primary_span]
926    pub span: Span,
927}
928
929#[derive(Diagnostic)]
930#[diag(attr_parsing_limit_invalid)]
931pub(crate) struct LimitInvalid<'a> {
932    #[primary_span]
933    pub span: Span,
934    #[label]
935    pub value_span: Span,
936    pub error_str: &'a str,
937}
938
939#[derive(Diagnostic)]
940#[diag(attr_parsing_cfg_attr_bad_delim)]
941pub(crate) struct CfgAttrBadDelim {
942    #[primary_span]
943    pub span: Span,
944    #[subdiagnostic]
945    pub sugg: MetaBadDelimSugg,
946}
rustc_attr_parsing/session_diagnostics.rs

rustc_attr_parsing/
session_diagnostics.rs
