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      1 //===--- TextDiagnosticPrinter.h - Text 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 // This is a concrete diagnostic client, which prints the diagnostics to
     11 // standard error.
     12 //
     13 //===----------------------------------------------------------------------===//
     14 
     15 #ifndef LLVM_CLANG_FRONTEND_TEXTDIAGNOSTICPRINTER_H
     16 #define LLVM_CLANG_FRONTEND_TEXTDIAGNOSTICPRINTER_H
     17 
     18 #include "clang/Basic/Diagnostic.h"
     19 #include "clang/Basic/LLVM.h"
     20 #include "llvm/ADT/IntrusiveRefCntPtr.h"
     21 #include <memory>
     22 
     23 namespace clang {
     24 class DiagnosticOptions;
     25 class LangOptions;
     26 class TextDiagnostic;
     27 
     28 class TextDiagnosticPrinter : public DiagnosticConsumer {
     29   raw_ostream &OS;
     30   IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts;
     31 
     32   /// \brief Handle to the currently active text diagnostic emitter.
     33   std::unique_ptr<TextDiagnostic> TextDiag;
     34 
     35   /// A string to prefix to error messages.
     36   std::string Prefix;
     37 
     38   unsigned OwnsOutputStream : 1;
     39 
     40 public:
     41   TextDiagnosticPrinter(raw_ostream &os, DiagnosticOptions *diags,
     42                         bool OwnsOutputStream = false);
     43   ~TextDiagnosticPrinter() override;
     44 
     45   /// setPrefix - Set the diagnostic printer prefix string, which will be
     46   /// printed at the start of any diagnostics. If empty, no prefix string is
     47   /// used.
     48   void setPrefix(std::string Value) { Prefix = std::move(Value); }
     49 
     50   void BeginSourceFile(const LangOptions &LO, const Preprocessor *PP) override;
     51   void EndSourceFile() override;
     52   void HandleDiagnostic(DiagnosticsEngine::Level Level,
     53                         const Diagnostic &Info) override;
     54 };
     55 
     56 } // end namespace clang
     57 
     58 #endif
     59