lib/StaticAnalyzer/Core/TextPathDiagnostics.cpp

   1 //===--- TextPathDiagnostics.cpp - Text Diagnostics for Paths ---*- 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 file defines the TextPathDiagnostics object.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "clang/StaticAnalyzer/PathDiagnosticClients.h"
  15 #include "clang/StaticAnalyzer/BugReporter/PathDiagnostic.h"
  16 #include "clang/Lex/Preprocessor.h"
  17 #include "llvm/Support/raw_ostream.h"
  18 using namespace clang;
  19 using namespace ento;
  20 using namespace llvm;
  21
  22 namespace {
  23
  24 /// \brief Simple path diagnostic client used for outputting as diagnostic notes
  25 /// the sequence of events.
  26 class TextPathDiagnostics : public PathDiagnosticClient {
  27   const std::string OutputFile;
  28   Diagnostic &Diag;
  29
  30 public:
  31   TextPathDiagnostics(const std::string& output, Diagnostic &diag)
  32     : OutputFile(output), Diag(diag) {}
  33
  34   void HandlePathDiagnostic(const PathDiagnostic* D);
  35
  36   void FlushDiagnostics(llvm::SmallVectorImpl<std::string> *FilesMade) { }
  37
  38   virtual llvm::StringRef getName() const {
  39     return "TextPathDiagnostics";
  40   }
  41
  42   PathGenerationScheme getGenerationScheme() const { return Minimal; }
  43   bool supportsLogicalOpControlFlow() const { return true; }
  44   bool supportsAllBlockEdges() const { return true; }
  45   virtual bool useVerboseDescription() const { return true; }
  46 };
  47
  48 } // end anonymous namespace
  49
  50 PathDiagnosticClient*
  51 ento::createTextPathDiagnosticClient(const std::string& out,
  52                                      const Preprocessor &PP) {
  53   return new TextPathDiagnostics(out, PP.getDiagnostics());
  54 }
  55
  56 void TextPathDiagnostics::HandlePathDiagnostic(const PathDiagnostic* D) {
  57   if (!D)
  58     return;
  59
  60   if (D->empty()) {
  61     delete D;
  62     return;
  63   }
  64
  65   for (PathDiagnostic::const_iterator I=D->begin(), E=D->end(); I != E; ++I) {
  66     unsigned diagID = Diag.getDiagnosticIDs()->getCustomDiagID(
  67                                            DiagnosticIDs::Note, I->getString());
  68     Diag.Report(I->getLocation().asLocation(), diagID);
  69   }
  70 }