1 //===--- TextDiagnosticPrinter.h - Text Diagnostic Client -------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This is a concrete diagnostic client, which prints the diagnostics to
10 // standard error.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_CLANG_FRONTEND_TEXTDIAGNOSTICPRINTER_H
15 #define LLVM_CLANG_FRONTEND_TEXTDIAGNOSTICPRINTER_H
16 
17 #include "clang/Basic/Diagnostic.h"
18 #include "clang/Basic/LLVM.h"
19 #include "llvm/ADT/IntrusiveRefCntPtr.h"
20 #include <memory>
21 
22 namespace clang {
23 class DiagnosticOptions;
24 class LangOptions;
25 class TextDiagnostic;
26 
27 class TextDiagnosticPrinter : public DiagnosticConsumer {
28   raw_ostream &OS;
29   IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts;
30 
31   /// Handle to the currently active text diagnostic emitter.
32   std::unique_ptr<TextDiagnostic> TextDiag;
33 
34   /// A string to prefix to error messages.
35   std::string Prefix;
36 
37   unsigned OwnsOutputStream : 1;
38 
39 public:
40   TextDiagnosticPrinter(raw_ostream &os, DiagnosticOptions *diags,
41                         bool OwnsOutputStream = false);
42   ~TextDiagnosticPrinter() override;
43 
44   /// setPrefix - Set the diagnostic printer prefix string, which will be
45   /// printed at the start of any diagnostics. If empty, no prefix string is
46   /// used.
setPrefix(std::string Value)47   void setPrefix(std::string Value) { Prefix = std::move(Value); }
48 
49   void BeginSourceFile(const LangOptions &LO, const Preprocessor *PP) override;
50   void EndSourceFile() override;
51   void HandleDiagnostic(DiagnosticsEngine::Level Level,
52                         const Diagnostic &Info) override;
53 };
54 
55 } // end namespace clang
56 
57 #endif
58