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/Core/PathDiagnosticConsumers.h"
15#include "clang/StaticAnalyzer/Core/BugReporter/PathDiagnostic.h"
16#include "clang/Lex/Preprocessor.h"
17#include "llvm/Support/raw_ostream.h"
18using namespace clang;
19using namespace ento;
20using namespace llvm;
21
22namespace {
23
24/// \brief Simple path diagnostic client used for outputting as diagnostic notes
25/// the sequence of events.
26class TextPathDiagnostics : public PathDiagnosticConsumer {
27  const std::string OutputFile;
28  DiagnosticsEngine &Diag;
29
30public:
31  TextPathDiagnostics(const std::string& output, DiagnosticsEngine &diag)
32    : OutputFile(output), Diag(diag) {}
33
34  void FlushDiagnosticsImpl(std::vector<const PathDiagnostic *> &Diags,
35                            FilesMade *filesMade);
36
37  virtual StringRef getName() const {
38    return "TextPathDiagnostics";
39  }
40
41  PathGenerationScheme getGenerationScheme() const { return Minimal; }
42  bool supportsLogicalOpControlFlow() const { return true; }
43  bool supportsAllBlockEdges() const { return true; }
44  virtual bool supportsCrossFileDiagnostics() const { return true; }
45};
46
47} // end anonymous namespace
48
49void ento::createTextPathDiagnosticConsumer(PathDiagnosticConsumers &C,
50                                            const std::string& out,
51                                            const Preprocessor &PP) {
52  C.push_back(new TextPathDiagnostics(out, PP.getDiagnostics()));
53}
54
55void TextPathDiagnostics::FlushDiagnosticsImpl(
56                              std::vector<const PathDiagnostic *> &Diags,
57                              FilesMade *) {
58  for (std::vector<const PathDiagnostic *>::iterator it = Diags.begin(),
59       et = Diags.end(); it != et; ++it) {
60    const PathDiagnostic *D = *it;
61
62    PathPieces FlatPath = D->path.flatten(/*ShouldFlattenMacros=*/true);
63    for (PathPieces::const_iterator I = FlatPath.begin(), E = FlatPath.end();
64         I != E; ++I) {
65      unsigned diagID =
66        Diag.getDiagnosticIDs()->getCustomDiagID(DiagnosticIDs::Note,
67                                                 (*I)->getString());
68      Diag.Report((*I)->getLocation().asLocation(), diagID);
69    }
70  }
71}
72