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      1 //===--- LogDiagnosticPrinter.h - Log Diagnostic Client ---------*- C++ -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 #ifndef LLVM_CLANG_FRONTEND_LOGDIAGNOSTICPRINTER_H
     11 #define LLVM_CLANG_FRONTEND_LOGDIAGNOSTICPRINTER_H
     12 
     13 #include "clang/Basic/Diagnostic.h"
     14 #include "clang/Basic/SourceLocation.h"
     15 #include "llvm/ADT/SmallVector.h"
     16 #include "llvm/ADT/StringRef.h"
     17 
     18 namespace clang {
     19 class DiagnosticOptions;
     20 class LangOptions;
     21 
     22 class LogDiagnosticPrinter : public DiagnosticConsumer {
     23   struct DiagEntry {
     24     /// The primary message line of the diagnostic.
     25     std::string Message;
     26 
     27     /// The source file name, if available.
     28     std::string Filename;
     29 
     30     /// The source file line number, if available.
     31     unsigned Line;
     32 
     33     /// The source file column number, if available.
     34     unsigned Column;
     35 
     36     /// The ID of the diagnostic.
     37     unsigned DiagnosticID;
     38 
     39     /// The Option Flag for the diagnostic
     40     std::string WarningOption;
     41 
     42     /// The level of the diagnostic.
     43     DiagnosticsEngine::Level DiagnosticLevel;
     44   };
     45 
     46   void EmitDiagEntry(llvm::raw_ostream &OS,
     47                      const LogDiagnosticPrinter::DiagEntry &DE);
     48 
     49   // Conditional ownership (when StreamOwner is non-null, it's keeping OS
     50   // alive). We might want to replace this with a wrapper for conditional
     51   // ownership eventually - it seems to pop up often enough.
     52   raw_ostream &OS;
     53   std::unique_ptr<raw_ostream> StreamOwner;
     54   const LangOptions *LangOpts;
     55   IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts;
     56 
     57   SourceLocation LastWarningLoc;
     58   FullSourceLoc LastLoc;
     59 
     60   SmallVector<DiagEntry, 8> Entries;
     61 
     62   std::string MainFilename;
     63   std::string DwarfDebugFlags;
     64 
     65 public:
     66   LogDiagnosticPrinter(raw_ostream &OS, DiagnosticOptions *Diags,
     67                        std::unique_ptr<raw_ostream> StreamOwner);
     68 
     69   void setDwarfDebugFlags(StringRef Value) {
     70     DwarfDebugFlags = Value;
     71   }
     72 
     73   void BeginSourceFile(const LangOptions &LO, const Preprocessor *PP) override {
     74     LangOpts = &LO;
     75   }
     76 
     77   void EndSourceFile() override;
     78 
     79   void HandleDiagnostic(DiagnosticsEngine::Level DiagLevel,
     80                         const Diagnostic &Info) override;
     81 };
     82 
     83 } // end namespace clang
     84 
     85 #endif
     86