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📄 ABI.h(5.95 KB)
📄 ASTNode.td(120 B)
📄 AddressSpaces.h(2.59 KB)
📄 AlignedAllocation.h(1.38 KB)
📄 AllDiagnostics.h(1.44 KB)
📄 Attr.td(122.78 KB)
📄 AttrDocs.td(197.8 KB)
📄 AttrKinds.h(929 B)
📄 AttrSubjectMatchRules.h(957 B)
📄 AttributeCommonInfo.h(7.02 KB)
📄 Attributes.h(1.35 KB)
📄 BitmaskEnum.h(749 B)
📄 Builtins.def(71.64 KB)
📄 Builtins.h(9.13 KB)
📄 BuiltinsAArch64.def(14.31 KB)
📄 BuiltinsAMDGPU.def(13.1 KB)
📄 BuiltinsARM.def(18.6 KB)
📄 BuiltinsBPF.def(1016 B)
📄 BuiltinsHexagon.def(6.15 KB)
📄 BuiltinsHexagonDep.def(117.26 KB)
📄 BuiltinsHexagonMapCustomDep.def(8.56 KB)
📄 BuiltinsLe64.def(728 B)
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📄 BuiltinsSVE.def(786 B)
📄 BuiltinsSystemZ.def(19.7 KB)
📄 BuiltinsWebAssembly.def(10.17 KB)
📄 BuiltinsX86.def(140.49 KB)
📄 BuiltinsX86_64.def(6.79 KB)
📄 BuiltinsXCore.def(846 B)
📄 CapturedStmt.h(662 B)
📄 CharInfo.h(6.52 KB)
📄 CodeGenOptions.def(21.65 KB)
📄 CodeGenOptions.h(14.14 KB)
📄 CommentNodes.td(1.04 KB)
📄 CommentOptions.h(1.1 KB)
📄 Cuda.h(2.3 KB)
📄 DebugInfoOptions.h(1.72 KB)
📄 DeclNodes.td(4.72 KB)
📄 Diagnostic.h(55.73 KB)
📄 Diagnostic.td(5.29 KB)
📄 DiagnosticAST.h(903 B)
📄 DiagnosticASTKinds.td(29.35 KB)
📄 DiagnosticAnalysis.h(933 B)
📄 DiagnosticAnalysisKinds.td(405 B)
📄 DiagnosticCategories.h(757 B)
📄 DiagnosticCategories.td(480 B)
📄 DiagnosticComment.h(927 B)
📄 DiagnosticCommentKinds.td(6.18 KB)
📄 DiagnosticCommonKinds.td(14.32 KB)
📄 DiagnosticCrossTU.h(927 B)
📄 DiagnosticCrossTUKinds.td(889 B)
📄 DiagnosticDocs.td(1.96 KB)
📄 DiagnosticDriver.h(921 B)
📄 DiagnosticDriverKinds.td(25.54 KB)
📄 DiagnosticError.h(1.98 KB)
📄 DiagnosticFrontend.h(933 B)
📄 DiagnosticFrontendKinds.td(13.86 KB)
📄 DiagnosticGroups.td(59.71 KB)
📄 DiagnosticIDs.h(12.83 KB)
📄 DiagnosticLex.h(903 B)
📄 DiagnosticLexKinds.td(38.36 KB)
📄 DiagnosticOptions.def(4.58 KB)
📄 DiagnosticOptions.h(4.21 KB)
📄 DiagnosticParse.h(915 B)
📄 DiagnosticParseKinds.td(68.47 KB)
📄 DiagnosticRefactoring.h(951 B)
📄 DiagnosticRefactoringKinds.td(1.33 KB)
📄 DiagnosticSema.h(909 B)
📄 DiagnosticSemaKinds.td(546.17 KB)
📄 DiagnosticSerialization.h(962 B)
📄 DiagnosticSerializationKinds.td(18.08 KB)
📄 ExceptionSpecificationType.h(2.48 KB)
📄 ExpressionTraits.h(1.18 KB)
📄 FPOptions.def(1.16 KB)
📄 Features.def(11.55 KB)
📄 FileManager.h(16.39 KB)
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📄 FileSystemStatCache.h(3.26 KB)
📄 FixedPoint.h(8.6 KB)
📄 IdentifierTable.h(33.75 KB)
📄 JsonSupport.h(3.69 KB)
📄 LLVM.h(2.43 KB)
📄 Lambda.h(1.37 KB)
📄 LangOptions.def(21.96 KB)
📄 LangOptions.h(18.78 KB)
📄 LangStandard.h(3.87 KB)
📄 LangStandards.def(6.8 KB)
📄 Linkage.h(4.13 KB)
📄 MSP430Target.def(7.04 KB)
📄 MacroBuilder.h(1.34 KB)
📄 Module.h(24.09 KB)
📄 ObjCRuntime.h(14.36 KB)
📄 OpenCLExtensionTypes.def(1.59 KB)
📄 OpenCLExtensions.def(4.38 KB)
📄 OpenCLImageTypes.def(4.1 KB)
📄 OpenCLOptions.h(4.42 KB)
📄 OpenMPKinds.def(4.58 KB)
📄 OpenMPKinds.h(9.66 KB)
📄 OperatorKinds.def(6.56 KB)
📄 OperatorKinds.h(1.55 KB)
📄 OperatorPrecedence.h(1.82 KB)
📄 PartialDiagnostic.h(12.96 KB)
📄 PlistSupport.h(4.02 KB)
📄 PragmaKinds.h(1.21 KB)
📄 PrettyStackTrace.h(1.26 KB)
📄 SanitizerBlacklist.h(1.73 KB)
📄 SanitizerSpecialCaseList.h(1.81 KB)
📄 Sanitizers.def(6.41 KB)
📄 Sanitizers.h(6.57 KB)
📄 SourceLocation.h(15.56 KB)
📄 SourceManager.h(71.11 KB)
📄 SourceManagerInternals.h(4.27 KB)
📄 Specifiers.h(12.68 KB)
📄 Stack.h(1.94 KB)
📄 StmtNodes.td(10.92 KB)
📄 SyncScope.h(4.87 KB)
📄 TargetBuiltins.h(9.18 KB)
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📄 TargetInfo.h(54.4 KB)
📄 TargetOptions.h(3 KB)
📄 TemplateKinds.h(2.22 KB)
📄 TokenKinds.def(33.83 KB)
📄 TokenKinds.h(3.99 KB)
📄 TypeNodes.td(5.48 KB)
📄 TypeTraits.h(2.67 KB)
📄 Version.h(2.23 KB)
📄 Visibility.h(4.4 KB)
📄 X86Target.def(5.21 KB)
📄 XRayInstr.h(1.92 KB)
📄 XRayLists.h(1.73 KB)
📄 arm_bf16.td(590 B)
📄 arm_cde.td(9.29 KB)
📄 arm_fp16.td(5.79 KB)
📄 arm_mve.td(70.85 KB)
📄 arm_mve_defs.td(24.52 KB)
📄 arm_neon.td(90.63 KB)
📄 arm_neon_incl.td(13.64 KB)
📄 arm_sve.td(162.48 KB)

Editing: DiagnosticIDs.h

//===--- DiagnosticIDs.h - Diagnostic IDs Handling --------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
///
/// \file
/// Defines the Diagnostic IDs-related interfaces.
///
//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_BASIC_DIAGNOSTICIDS_H
#define LLVM_CLANG_BASIC_DIAGNOSTICIDS_H

#include "clang/Basic/LLVM.h"
#include "llvm/ADT/IntrusiveRefCntPtr.h"
#include "llvm/ADT/StringRef.h"
#include <vector>

namespace clang {
  class DiagnosticsEngine;
  class SourceLocation;

// Import the diagnostic enums themselves.
  namespace diag {
    // Size of each of the diagnostic categories.
    enum {
      DIAG_SIZE_COMMON        =  300,
      DIAG_SIZE_DRIVER        =  250,
      DIAG_SIZE_FRONTEND      =  150,
      DIAG_SIZE_SERIALIZATION =  120,
      DIAG_SIZE_LEX           =  400,
      DIAG_SIZE_PARSE         =  600,
      DIAG_SIZE_AST           =  250,
      DIAG_SIZE_COMMENT       =  100,
      DIAG_SIZE_CROSSTU       =  100,
      DIAG_SIZE_SEMA          = 4000,
      DIAG_SIZE_ANALYSIS      =  100,
      DIAG_SIZE_REFACTORING   = 1000,
    };
    // Start position for diagnostics.
    enum {
      DIAG_START_COMMON        =                          0,
      DIAG_START_DRIVER        = DIAG_START_COMMON        + DIAG_SIZE_COMMON,
      DIAG_START_FRONTEND      = DIAG_START_DRIVER        + DIAG_SIZE_DRIVER,
      DIAG_START_SERIALIZATION = DIAG_START_FRONTEND      + DIAG_SIZE_FRONTEND,
      DIAG_START_LEX           = DIAG_START_SERIALIZATION + DIAG_SIZE_SERIALIZATION,
      DIAG_START_PARSE         = DIAG_START_LEX           + DIAG_SIZE_LEX,
      DIAG_START_AST           = DIAG_START_PARSE         + DIAG_SIZE_PARSE,
      DIAG_START_COMMENT       = DIAG_START_AST           + DIAG_SIZE_AST,
      DIAG_START_CROSSTU       = DIAG_START_COMMENT       + DIAG_SIZE_COMMENT,
      DIAG_START_SEMA          = DIAG_START_CROSSTU       + DIAG_SIZE_CROSSTU,
      DIAG_START_ANALYSIS      = DIAG_START_SEMA          + DIAG_SIZE_SEMA,
      DIAG_START_REFACTORING   = DIAG_START_ANALYSIS      + DIAG_SIZE_ANALYSIS,
      DIAG_UPPER_LIMIT         = DIAG_START_REFACTORING   + DIAG_SIZE_REFACTORING
    };

class CustomDiagInfo;

/// All of the diagnostics that can be emitted by the frontend.
    typedef unsigned kind;

// Get typedefs for common diagnostics.
    enum {
#define DIAG(ENUM,FLAGS,DEFAULT_MAPPING,DESC,GROUP,\
             SFINAE,CATEGORY,NOWERROR,SHOWINSYSHEADER) ENUM,
#define COMMONSTART
#include "clang/Basic/DiagnosticCommonKinds.inc"
      NUM_BUILTIN_COMMON_DIAGNOSTICS
#undef DIAG
    };

/// Enum values that allow the client to map NOTEs, WARNINGs, and EXTENSIONs
    /// to either Ignore (nothing), Remark (emit a remark), Warning
    /// (emit a warning) or Error (emit as an error).  It allows clients to
    /// map ERRORs to Error or Fatal (stop emitting diagnostics after this one).
    enum class Severity {
      // NOTE: 0 means "uncomputed".
      Ignored = 1, ///< Do not present this diagnostic, ignore it.
      Remark = 2,  ///< Present this diagnostic as a remark.
      Warning = 3, ///< Present this diagnostic as a warning.
      Error = 4,   ///< Present this diagnostic as an error.
      Fatal = 5    ///< Present this diagnostic as a fatal error.
    };

/// Flavors of diagnostics we can emit. Used to filter for a particular
    /// kind of diagnostic (for instance, for -W/-R flags).
    enum class Flavor {
      WarningOrError, ///< A diagnostic that indicates a problem or potential
                      ///< problem. Can be made fatal by -Werror.
      Remark          ///< A diagnostic that indicates normal progress through
                      ///< compilation.
    };
  }

class DiagnosticMapping {
  unsigned Severity : 3;
  unsigned IsUser : 1;
  unsigned IsPragma : 1;
  unsigned HasNoWarningAsError : 1;
  unsigned HasNoErrorAsFatal : 1;
  unsigned WasUpgradedFromWarning : 1;

public:
  static DiagnosticMapping Make(diag::Severity Severity, bool IsUser,
                                bool IsPragma) {
    DiagnosticMapping Result;
    Result.Severity = (unsigned)Severity;
    Result.IsUser = IsUser;
    Result.IsPragma = IsPragma;
    Result.HasNoWarningAsError = 0;
    Result.HasNoErrorAsFatal = 0;
    Result.WasUpgradedFromWarning = 0;
    return Result;
  }

diag::Severity getSeverity() const { return (diag::Severity)Severity; }
  void setSeverity(diag::Severity Value) { Severity = (unsigned)Value; }

bool isUser() const { return IsUser; }
  bool isPragma() const { return IsPragma; }

bool isErrorOrFatal() const {
    return getSeverity() == diag::Severity::Error ||
           getSeverity() == diag::Severity::Fatal;
  }

bool hasNoWarningAsError() const { return HasNoWarningAsError; }
  void setNoWarningAsError(bool Value) { HasNoWarningAsError = Value; }

bool hasNoErrorAsFatal() const { return HasNoErrorAsFatal; }
  void setNoErrorAsFatal(bool Value) { HasNoErrorAsFatal = Value; }

/// Whether this mapping attempted to map the diagnostic to a warning, but
  /// was overruled because the diagnostic was already mapped to an error or
  /// fatal error.
  bool wasUpgradedFromWarning() const { return WasUpgradedFromWarning; }
  void setUpgradedFromWarning(bool Value) { WasUpgradedFromWarning = Value; }

/// Serialize this mapping as a raw integer.
  unsigned serialize() const {
    return (IsUser << 7) | (IsPragma << 6) | (HasNoWarningAsError << 5) |
           (HasNoErrorAsFatal << 4) | (WasUpgradedFromWarning << 3) | Severity;
  }
  /// Deserialize a mapping.
  static DiagnosticMapping deserialize(unsigned Bits) {
    DiagnosticMapping Result;
    Result.IsUser = (Bits >> 7) & 1;
    Result.IsPragma = (Bits >> 6) & 1;
    Result.HasNoWarningAsError = (Bits >> 5) & 1;
    Result.HasNoErrorAsFatal = (Bits >> 4) & 1;
    Result.WasUpgradedFromWarning = (Bits >> 3) & 1;
    Result.Severity = Bits & 0x7;
    return Result;
  }
};

/// Used for handling and querying diagnostic IDs.
///
/// Can be used and shared by multiple Diagnostics for multiple translation units.
class DiagnosticIDs : public RefCountedBase<DiagnosticIDs> {
public:
  /// The level of the diagnostic, after it has been through mapping.
  enum Level {
    Ignored, Note, Remark, Warning, Error, Fatal
  };

private:
  /// Information for uniquing and looking up custom diags.
  std::unique_ptr<diag::CustomDiagInfo> CustomDiagInfo;

public:
  DiagnosticIDs();
  ~DiagnosticIDs();

/// Return an ID for a diagnostic with the specified format string and
  /// level.
  ///
  /// If this is the first request for this diagnostic, it is registered and
  /// created, otherwise the existing ID is returned.

// FIXME: Replace this function with a create-only facilty like
  // createCustomDiagIDFromFormatString() to enforce safe usage. At the time of
  // writing, nearly all callers of this function were invalid.
  unsigned getCustomDiagID(Level L, StringRef FormatString);

//===--------------------------------------------------------------------===//
  // Diagnostic classification and reporting interfaces.
  //

/// Given a diagnostic ID, return a description of the issue.
  StringRef getDescription(unsigned DiagID) const;

/// Return true if the unmapped diagnostic levelof the specified
  /// diagnostic ID is a Warning or Extension.
  ///
  /// This only works on builtin diagnostics, not custom ones, and is not
  /// legal to call on NOTEs.
  static bool isBuiltinWarningOrExtension(unsigned DiagID);

/// Return true if the specified diagnostic is mapped to errors by
  /// default.
  static bool isDefaultMappingAsError(unsigned DiagID);

/// Determine whether the given built-in diagnostic ID is a Note.
  static bool isBuiltinNote(unsigned DiagID);

/// Determine whether the given built-in diagnostic ID is for an
  /// extension of some sort.
  static bool isBuiltinExtensionDiag(unsigned DiagID) {
    bool ignored;
    return isBuiltinExtensionDiag(DiagID, ignored);
  }

/// Determine whether the given built-in diagnostic ID is for an
  /// extension of some sort, and whether it is enabled by default.
  ///
  /// This also returns EnabledByDefault, which is set to indicate whether the
  /// diagnostic is ignored by default (in which case -pedantic enables it) or
  /// treated as a warning/error by default.
  ///
  static bool isBuiltinExtensionDiag(unsigned DiagID, bool &EnabledByDefault);

/// Return the lowest-level warning option that enables the specified
  /// diagnostic.
  ///
  /// If there is no -Wfoo flag that controls the diagnostic, this returns null.
  static StringRef getWarningOptionForDiag(unsigned DiagID);

/// Return the category number that a specified \p DiagID belongs to,
  /// or 0 if no category.
  static unsigned getCategoryNumberForDiag(unsigned DiagID);

/// Return the number of diagnostic categories.
  static unsigned getNumberOfCategories();

/// Given a category ID, return the name of the category.
  static StringRef getCategoryNameFromID(unsigned CategoryID);

/// Return true if a given diagnostic falls into an ARC diagnostic
  /// category.
  static bool isARCDiagnostic(unsigned DiagID);

/// Enumeration describing how the emission of a diagnostic should
  /// be treated when it occurs during C++ template argument deduction.
  enum SFINAEResponse {
    /// The diagnostic should not be reported, but it should cause
    /// template argument deduction to fail.
    ///
    /// The vast majority of errors that occur during template argument
    /// deduction fall into this category.
    SFINAE_SubstitutionFailure,

/// The diagnostic should be suppressed entirely.
    ///
    /// Warnings generally fall into this category.
    SFINAE_Suppress,

/// The diagnostic should be reported.
    ///
    /// The diagnostic should be reported. Various fatal errors (e.g.,
    /// template instantiation depth exceeded) fall into this category.
    SFINAE_Report,

/// The diagnostic is an access-control diagnostic, which will be
    /// substitution failures in some contexts and reported in others.
    SFINAE_AccessControl
  };

/// Determines whether the given built-in diagnostic ID is
  /// for an error that is suppressed if it occurs during C++ template
  /// argument deduction.
  ///
  /// When an error is suppressed due to SFINAE, the template argument
  /// deduction fails but no diagnostic is emitted. Certain classes of
  /// errors, such as those errors that involve C++ access control,
  /// are not SFINAE errors.
  static SFINAEResponse getDiagnosticSFINAEResponse(unsigned DiagID);

/// Get the string of all diagnostic flags.
  ///
  /// \returns A list of all diagnostics flags as they would be written in a
  /// command line invocation including their `no-` variants. For example:
  /// `{"-Wempty-body", "-Wno-empty-body", ...}`
  static std::vector<std::string> getDiagnosticFlags();

/// Get the set of all diagnostic IDs in the group with the given name.
  ///
  /// \param[out] Diags - On return, the diagnostics in the group.
  /// \returns \c true if the given group is unknown, \c false otherwise.
  bool getDiagnosticsInGroup(diag::Flavor Flavor, StringRef Group,
                             SmallVectorImpl<diag::kind> &Diags) const;

/// Get the set of all diagnostic IDs.
  static void getAllDiagnostics(diag::Flavor Flavor,
                                std::vector<diag::kind> &Diags);

/// Get the diagnostic option with the closest edit distance to the
  /// given group name.
  static StringRef getNearestOption(diag::Flavor Flavor, StringRef Group);

private:
  /// Classify the specified diagnostic ID into a Level, consumable by
  /// the DiagnosticClient.
  ///
  /// The classification is based on the way the client configured the
  /// DiagnosticsEngine object.
  ///
  /// \param Loc The source location for which we are interested in finding out
  /// the diagnostic state. Can be null in order to query the latest state.
  DiagnosticIDs::Level
  getDiagnosticLevel(unsigned DiagID, SourceLocation Loc,
                     const DiagnosticsEngine &Diag) const LLVM_READONLY;

diag::Severity
  getDiagnosticSeverity(unsigned DiagID, SourceLocation Loc,
                        const DiagnosticsEngine &Diag) const LLVM_READONLY;

/// Used to report a diagnostic that is finally fully formed.
  ///
  /// \returns \c true if the diagnostic was emitted, \c false if it was
  /// suppressed.
  bool ProcessDiag(DiagnosticsEngine &Diag) const;

/// Used to emit a diagnostic that is finally fully formed,
  /// ignoring suppression.
  void EmitDiag(DiagnosticsEngine &Diag, Level DiagLevel) const;

/// Whether the diagnostic may leave the AST in a state where some
  /// invariants can break.
  bool isUnrecoverable(unsigned DiagID) const;

friend class DiagnosticsEngine;
};

}  // end namespace clang

#endif

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