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.
setPrefix(std::string Value)48   void setPrefix(std::string Value) { Prefix = 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