This revision was automatically updated to reflect the committed changes.
Closed by commit rL283092: [analyzer] Extend bug reports with extra notes
(authored by dergachev).
Changed prior to commit:
https://reviews.llvm.org/D24278?vs=72519&id=73406#toc
Repository:
rL LLVM
https://reviews.llvm.org/D24278
Files:
cfe/trunk/include/clang/StaticAnalyzer/Core/AnalyzerOptions.h
cfe/trunk/include/clang/StaticAnalyzer/Core/BugReporter/BugReporter.h
cfe/trunk/include/clang/StaticAnalyzer/Core/BugReporter/PathDiagnostic.h
cfe/trunk/lib/Rewrite/HTMLRewrite.cpp
cfe/trunk/lib/StaticAnalyzer/Core/AnalyzerOptions.cpp
cfe/trunk/lib/StaticAnalyzer/Core/BugReporter.cpp
cfe/trunk/lib/StaticAnalyzer/Core/HTMLDiagnostics.cpp
cfe/trunk/lib/StaticAnalyzer/Core/PathDiagnostic.cpp
cfe/trunk/lib/StaticAnalyzer/Core/PlistDiagnostics.cpp
cfe/trunk/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp
Index: cfe/trunk/include/clang/StaticAnalyzer/Core/AnalyzerOptions.h
===================================================================
--- cfe/trunk/include/clang/StaticAnalyzer/Core/AnalyzerOptions.h
+++ cfe/trunk/include/clang/StaticAnalyzer/Core/AnalyzerOptions.h
@@ -266,6 +266,9 @@
/// \sa shouldWidenLoops
Optional<bool> WidenLoops;
+ /// \sa shouldDisplayNotesAsEvents
+ Optional<bool> DisplayNotesAsEvents;
+
/// A helper function that retrieves option for a given full-qualified
/// checker name.
/// Options for checkers can be specified via 'analyzer-config' command-line
@@ -534,6 +537,14 @@
/// This is controlled by the 'widen-loops' config option.
bool shouldWidenLoops();
+ /// Returns true if the bug reporter should transparently treat extra note
+ /// diagnostic pieces as event diagnostic pieces. Useful when the diagnostic
+ /// consumer doesn't support the extra note pieces.
+ ///
+ /// This is controlled by the 'notes-as-events' option, which defaults
+ /// to false when unset.
+ bool shouldDisplayNotesAsEvents();
+
public:
AnalyzerOptions() :
AnalysisStoreOpt(RegionStoreModel),
Index: cfe/trunk/include/clang/StaticAnalyzer/Core/BugReporter/PathDiagnostic.h
===================================================================
--- cfe/trunk/include/clang/StaticAnalyzer/Core/BugReporter/PathDiagnostic.h
+++ cfe/trunk/include/clang/StaticAnalyzer/Core/BugReporter/PathDiagnostic.h
@@ -336,7 +336,7 @@
class PathDiagnosticPiece : public RefCountedBaseVPTR {
public:
- enum Kind { ControlFlow, Event, Macro, Call };
+ enum Kind { ControlFlow, Event, Macro, Call, Note };
enum DisplayHint { Above, Below };
private:
@@ -452,7 +452,8 @@
void Profile(llvm::FoldingSetNodeID &ID) const override;
static bool classof(const PathDiagnosticPiece *P) {
- return P->getKind() == Event || P->getKind() == Macro;
+ return P->getKind() == Event || P->getKind() == Macro ||
+ P->getKind() == Note;
}
};
@@ -710,6 +711,23 @@
void Profile(llvm::FoldingSetNodeID &ID) const override;
};
+class PathDiagnosticNotePiece: public PathDiagnosticSpotPiece {
+public:
+ PathDiagnosticNotePiece(const PathDiagnosticLocation &Pos, StringRef S,
+ bool AddPosRange = true)
+ : PathDiagnosticSpotPiece(Pos, S, Note, AddPosRange) {}
+
+ ~PathDiagnosticNotePiece() override;
+
+ static inline bool classof(const PathDiagnosticPiece *P) {
+ return P->getKind() == Note;
+ }
+
+ void dump() const override;
+
+ void Profile(llvm::FoldingSetNodeID &ID) const override;
+};
+
/// PathDiagnostic - PathDiagnostic objects represent a single path-sensitive
/// diagnostic. It represents an ordered-collection of PathDiagnosticPieces,
/// each which represent the pieces of the path.
Index: cfe/trunk/include/clang/StaticAnalyzer/Core/BugReporter/BugReporter.h
===================================================================
--- cfe/trunk/include/clang/StaticAnalyzer/Core/BugReporter/BugReporter.h
+++ cfe/trunk/include/clang/StaticAnalyzer/Core/BugReporter/BugReporter.h
@@ -66,6 +66,8 @@
typedef SmallVector<std::unique_ptr<BugReporterVisitor>, 8> VisitorList;
typedef VisitorList::iterator visitor_iterator;
typedef SmallVector<StringRef, 2> ExtraTextList;
+ typedef SmallVector<llvm::IntrusiveRefCntPtr<PathDiagnosticNotePiece>, 4>
+ NoteList;
protected:
friend class BugReporter;
@@ -82,7 +84,8 @@
const ExplodedNode *ErrorNode;
SmallVector<SourceRange, 4> Ranges;
ExtraTextList ExtraText;
-
+ NoteList Notes;
+
typedef llvm::DenseSet<SymbolRef> Symbols;
typedef llvm::DenseSet<const MemRegion *> Regions;
@@ -177,6 +180,18 @@
const BugType& getBugType() const { return BT; }
BugType& getBugType() { return BT; }
+ /// \brief True when the report has an execution path associated with it.
+ ///
+ /// A report is said to be path-sensitive if it was thrown against a
+ /// particular exploded node in the path-sensitive analysis graph.
+ /// Path-sensitive reports have their intermediate path diagnostics
+ /// auto-generated, perhaps with the help of checker-defined visitors,
+ /// and may contain extra notes.
+ /// Path-insensitive reports consist only of a single warning message
+ /// in a specific location, and perhaps extra notes.
+ /// Path-sensitive checkers are allowed to throw path-insensitive reports.
+ bool isPathSensitive() const { return ErrorNode != nullptr; }
+
const ExplodedNode *getErrorNode() const { return ErrorNode; }
StringRef getDescription() const { return Description; }
@@ -245,7 +260,27 @@
void setDeclWithIssue(const Decl *declWithIssue) {
DeclWithIssue = declWithIssue;
}
-
+
+ /// Add new item to the list of additional notes that need to be attached to
+ /// this path-insensitive report. If you want to add extra notes to a
+ /// path-sensitive report, you need to use a BugReporterVisitor because it
+ /// allows you to specify where exactly in the auto-generated path diagnostic
+ /// the extra note should appear.
+ void addNote(StringRef Msg, const PathDiagnosticLocation &Pos,
+ ArrayRef<SourceRange> Ranges = {}) {
+ PathDiagnosticNotePiece *P =
+ new PathDiagnosticNotePiece(Pos, Msg);
+
+ for (const auto &R : Ranges)
+ P->addRange(R);
+
+ Notes.push_back(P);
+ }
+
+ virtual const NoteList &getNotes() {
+ return Notes;
+ }
+
/// \brief This allows for addition of meta data to the diagnostic.
///
/// Currently, only the HTMLDiagnosticClient knows how to display it.
Index: cfe/trunk/lib/Rewrite/HTMLRewrite.cpp
===================================================================
--- cfe/trunk/lib/Rewrite/HTMLRewrite.cpp
+++ cfe/trunk/lib/Rewrite/HTMLRewrite.cpp
@@ -324,6 +324,7 @@
" .msgT { padding:0x; spacing:0x }\n"
" .msgEvent { background-color:#fff8b4; color:#000000 }\n"
" .msgControl { background-color:#bbbbbb; color:#000000 }\n"
+ " .msgNote { background-color:#ddeeff; color:#000000 }\n"
" .mrange { background-color:#dfddf3 }\n"
" .mrange { border-bottom:1px solid #6F9DBE }\n"
" .PathIndex { font-weight: bold; padding:0px 5px; "
@@ -343,8 +344,12 @@
" border-collapse: collapse; border-spacing: 0px;\n"
" }\n"
" td.rowname {\n"
- " text-align:right; font-weight:bold; color:#444444;\n"
- " padding-right:2ex; }\n"
+ " text-align: right;\n"
+ " vertical-align: top;\n"
+ " font-weight: bold;\n"
+ " color:#444444;\n"
+ " padding-right:2ex;\n"
+ " }\n"
"</style>\n</head>\n<body>";
// Generate header
Index: cfe/trunk/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp
===================================================================
--- cfe/trunk/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp
+++ cfe/trunk/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp
@@ -113,16 +113,28 @@
Diag.Report(WarnLoc, WarnID) << PD->getShortDescription()
<< PD->path.back()->getRanges();
+ // First, add extra notes, even if paths should not be included.
+ for (const auto &Piece : PD->path) {
+ if (!isa<PathDiagnosticNotePiece>(Piece.get()))
+ continue;
+
+ SourceLocation NoteLoc = Piece->getLocation().asLocation();
+ Diag.Report(NoteLoc, NoteID) << Piece->getString()
+ << Piece->getRanges();
+ }
+
if (!IncludePath)
continue;
+ // Then, add the path notes if necessary.
PathPieces FlatPath = PD->path.flatten(/*ShouldFlattenMacros=*/true);
- for (PathPieces::const_iterator PI = FlatPath.begin(),
- PE = FlatPath.end();
- PI != PE; ++PI) {
- SourceLocation NoteLoc = (*PI)->getLocation().asLocation();
- Diag.Report(NoteLoc, NoteID) << (*PI)->getString()
- << (*PI)->getRanges();
+ for (const auto &Piece : FlatPath) {
+ if (isa<PathDiagnosticNotePiece>(Piece.get()))
+ continue;
+
+ SourceLocation NoteLoc = Piece->getLocation().asLocation();
+ Diag.Report(NoteLoc, NoteID) << Piece->getString()
+ << Piece->getRanges();
}
}
}
Index: cfe/trunk/lib/StaticAnalyzer/Core/BugReporter.cpp
===================================================================
--- cfe/trunk/lib/StaticAnalyzer/Core/BugReporter.cpp
+++ cfe/trunk/lib/StaticAnalyzer/Core/BugReporter.cpp
@@ -112,15 +112,15 @@
path.pop_front();
switch (piece->getKind()) {
- case clang::ento::PathDiagnosticPiece::Call:
+ case PathDiagnosticPiece::Call:
removeRedundantMsgs(cast<PathDiagnosticCallPiece>(piece)->path);
break;
- case clang::ento::PathDiagnosticPiece::Macro:
+ case PathDiagnosticPiece::Macro:
removeRedundantMsgs(cast<PathDiagnosticMacroPiece>(piece)->subPieces);
break;
- case clang::ento::PathDiagnosticPiece::ControlFlow:
+ case PathDiagnosticPiece::ControlFlow:
break;
- case clang::ento::PathDiagnosticPiece::Event: {
+ case PathDiagnosticPiece::Event: {
if (i == N-1)
break;
@@ -140,6 +140,8 @@
}
break;
}
+ case PathDiagnosticPiece::Note:
+ break;
}
path.push_back(piece);
}
@@ -197,6 +199,9 @@
}
case PathDiagnosticPiece::ControlFlow:
break;
+
+ case PathDiagnosticPiece::Note:
+ break;
}
pieces.push_back(piece);
@@ -3403,25 +3408,28 @@
exampleReport->getUniqueingLocation(),
exampleReport->getUniqueingDecl()));
- MaxBugClassSize = std::max(bugReports.size(),
- static_cast<size_t>(MaxBugClassSize));
+ if (exampleReport->isPathSensitive()) {
+ // Generate the full path diagnostic, using the generation scheme
+ // specified by the PathDiagnosticConsumer. Note that we have to generate
+ // path diagnostics even for consumers which do not support paths, because
+ // the BugReporterVisitors may mark this bug as a false positive.
+ assert(!bugReports.empty());
+
+ MaxBugClassSize =
+ std::max(bugReports.size(), static_cast<size_t>(MaxBugClassSize));
- // Generate the full path diagnostic, using the generation scheme
- // specified by the PathDiagnosticConsumer. Note that we have to generate
- // path diagnostics even for consumers which do not support paths, because
- // the BugReporterVisitors may mark this bug as a false positive.
- if (!bugReports.empty())
if (!generatePathDiagnostic(*D.get(), PD, bugReports))
return;
- MaxValidBugClassSize = std::max(bugReports.size(),
- static_cast<size_t>(MaxValidBugClassSize));
+ MaxValidBugClassSize =
+ std::max(bugReports.size(), static_cast<size_t>(MaxValidBugClassSize));
- // Examine the report and see if the last piece is in a header. Reset the
- // report location to the last piece in the main source file.
- AnalyzerOptions& Opts = getAnalyzerOptions();
- if (Opts.shouldReportIssuesInMainSourceFile() && !Opts.AnalyzeAll)
- D->resetDiagnosticLocationToMainFile();
+ // Examine the report and see if the last piece is in a header. Reset the
+ // report location to the last piece in the main source file.
+ AnalyzerOptions &Opts = getAnalyzerOptions();
+ if (Opts.shouldReportIssuesInMainSourceFile() && !Opts.AnalyzeAll)
+ D->resetDiagnosticLocationToMainFile();
+ }
// If the path is empty, generate a single step path with the location
// of the issue.
@@ -3434,6 +3442,27 @@
D->setEndOfPath(std::move(piece));
}
+ PathPieces &Pieces = D->getMutablePieces();
+ if (getAnalyzerOptions().shouldDisplayNotesAsEvents()) {
+ // For path diagnostic consumers that don't support extra notes,
+ // we may optionally convert those to path notes.
+ for (auto I = exampleReport->getNotes().rbegin(),
+ E = exampleReport->getNotes().rend(); I != E; ++I) {
+ PathDiagnosticNotePiece *Piece = I->get();
+ PathDiagnosticEventPiece *ConvertedPiece =
+ new PathDiagnosticEventPiece(Piece->getLocation(),
+ Piece->getString());
+ for (const auto &R: Piece->getRanges())
+ ConvertedPiece->addRange(R);
+
+ Pieces.push_front(ConvertedPiece);
+ }
+ } else {
+ for (auto I = exampleReport->getNotes().rbegin(),
+ E = exampleReport->getNotes().rend(); I != E; ++I)
+ Pieces.push_front(*I);
+ }
+
// Get the meta data.
const BugReport::ExtraTextList &Meta = exampleReport->getExtraText();
for (BugReport::ExtraTextList::const_iterator i = Meta.begin(),
@@ -3518,6 +3547,13 @@
// FIXME: Print which macro is being invoked.
}
+LLVM_DUMP_METHOD void PathDiagnosticNotePiece::dump() const {
+ llvm::errs() << "NOTE\n--------------\n";
+ llvm::errs() << getString() << "\n";
+ llvm::errs() << " ---- at ----\n";
+ getLocation().dump();
+}
+
LLVM_DUMP_METHOD void PathDiagnosticLocation::dump() const {
if (!isValid()) {
llvm::errs() << "<INVALID>\n";
Index: cfe/trunk/lib/StaticAnalyzer/Core/HTMLDiagnostics.cpp
===================================================================
--- cfe/trunk/lib/StaticAnalyzer/Core/HTMLDiagnostics.cpp
+++ cfe/trunk/lib/StaticAnalyzer/Core/HTMLDiagnostics.cpp
@@ -152,13 +152,30 @@
}
// Process the path.
- unsigned n = path.size();
- unsigned max = n;
-
- for (PathPieces::const_reverse_iterator I = path.rbegin(),
- E = path.rend();
- I != E; ++I, --n)
- HandlePiece(R, FID, **I, n, max);
+ // Maintain the counts of extra note pieces separately.
+ unsigned TotalPieces = path.size();
+ unsigned TotalNotePieces =
+ std::count_if(path.begin(), path.end(),
+ [](const IntrusiveRefCntPtr<PathDiagnosticPiece> &p) {
+ return isa<PathDiagnosticNotePiece>(p.get());
+ });
+
+ unsigned TotalRegularPieces = TotalPieces - TotalNotePieces;
+ unsigned NumRegularPieces = TotalRegularPieces;
+ unsigned NumNotePieces = TotalNotePieces;
+
+ for (auto I = path.rbegin(), E = path.rend(); I != E; ++I) {
+ if (isa<PathDiagnosticNotePiece>(I->get())) {
+ // This adds diagnostic bubbles, but not navigation.
+ // Navigation through note pieces would be added later,
+ // as a separate pass through the piece list.
+ HandlePiece(R, FID, **I, NumNotePieces, TotalNotePieces);
+ --NumNotePieces;
+ } else {
+ HandlePiece(R, FID, **I, NumRegularPieces, TotalRegularPieces);
+ --NumRegularPieces;
+ }
+ }
// Add line numbers, header, footer, etc.
@@ -192,24 +209,38 @@
int ColumnNumber = path.back()->getLocation().asLocation().getExpansionColumnNumber();
// Add the name of the file as an <h1> tag.
-
{
std::string s;
llvm::raw_string_ostream os(s);
os << "<!-- REPORTHEADER -->\n"
- << "<h3>Bug Summary</h3>\n<table class=\"simpletable\">\n"
+ << "<h3>Bug Summary</h3>\n<table class=\"simpletable\">\n"
"<tr><td class=\"rowname\">File:</td><td>"
- << html::EscapeText(DirName)
- << html::EscapeText(Entry->getName())
- << "</td></tr>\n<tr><td class=\"rowname\">Location:</td><td>"
- "<a href=\"#EndPath\">line "
- << LineNumber
- << ", column "
- << ColumnNumber
- << "</a></td></tr>\n"
- "<tr><td class=\"rowname\">Description:</td><td>"
- << D.getVerboseDescription() << "</td></tr>\n";
+ << html::EscapeText(DirName)
+ << html::EscapeText(Entry->getName())
+ << "</td></tr>\n<tr><td class=\"rowname\">Warning:</td><td>"
+ "<a href=\"#EndPath\">line "
+ << LineNumber
+ << ", column "
+ << ColumnNumber
+ << "</a><br />"
+ << D.getVerboseDescription() << "</td></tr>\n";
+
+ // The navigation across the extra notes pieces.
+ unsigned NumExtraPieces = 0;
+ for (const auto &Piece : path) {
+ if (const auto *P = dyn_cast<PathDiagnosticNotePiece>(Piece.get())) {
+ int LineNumber =
+ P->getLocation().asLocation().getExpansionLineNumber();
+ int ColumnNumber =
+ P->getLocation().asLocation().getExpansionColumnNumber();
+ os << "<tr><td class=\"rowname\">Note:</td><td>"
+ << "<a href=\"#Note" << NumExtraPieces << "\">line "
+ << LineNumber << ", column " << ColumnNumber << "</a><br />"
+ << P->getString() << "</td></tr>";
+ ++NumExtraPieces;
+ }
+ }
// Output any other meta data.
@@ -385,21 +416,30 @@
// Create the html for the message.
const char *Kind = nullptr;
+ bool IsNote = false;
+ bool SuppressIndex = (max == 1);
switch (P.getKind()) {
case PathDiagnosticPiece::Call:
- llvm_unreachable("Calls should already be handled");
+ llvm_unreachable("Calls and extra notes should already be handled");
case PathDiagnosticPiece::Event: Kind = "Event"; break;
case PathDiagnosticPiece::ControlFlow: Kind = "Control"; break;
// Setting Kind to "Control" is intentional.
case PathDiagnosticPiece::Macro: Kind = "Control"; break;
+ case PathDiagnosticPiece::Note:
+ Kind = "Note";
+ IsNote = true;
+ SuppressIndex = true;
+ break;
}
std::string sbuf;
llvm::raw_string_ostream os(sbuf);
os << "\n<tr><td class=\"num\"></td><td class=\"line\"><div id=\"";
- if (num == max)
+ if (IsNote)
+ os << "Note" << num;
+ else if (num == max)
os << "EndPath";
else
os << "Path" << num;
@@ -461,7 +501,7 @@
os << "\">";
- if (max > 1) {
+ if (!SuppressIndex) {
os << "<table class=\"msgT\"><tr><td valign=\"top\">";
os << "<div class=\"PathIndex";
if (Kind) os << " PathIndex" << Kind;
@@ -501,7 +541,7 @@
os << "':\n";
- if (max > 1) {
+ if (!SuppressIndex) {
os << "</td>";
if (num < max) {
os << "<td><div class=\"PathNav\"><a href=\"#";
@@ -523,7 +563,7 @@
else {
os << html::EscapeText(P.getString());
- if (max > 1) {
+ if (!SuppressIndex) {
os << "</td>";
if (num < max) {
os << "<td><div class=\"PathNav\"><a href=\"#";
Index: cfe/trunk/lib/StaticAnalyzer/Core/AnalyzerOptions.cpp
===================================================================
--- cfe/trunk/lib/StaticAnalyzer/Core/AnalyzerOptions.cpp
+++ cfe/trunk/lib/StaticAnalyzer/Core/AnalyzerOptions.cpp
@@ -344,3 +344,10 @@
WidenLoops = getBooleanOption("widen-loops", /*Default=*/false);
return WidenLoops.getValue();
}
+
+bool AnalyzerOptions::shouldDisplayNotesAsEvents() {
+ if (!DisplayNotesAsEvents.hasValue())
+ DisplayNotesAsEvents =
+ getBooleanOption("notes-as-events", /*Default=*/false);
+ return DisplayNotesAsEvents.getValue();
+}
Index: cfe/trunk/lib/StaticAnalyzer/Core/PathDiagnostic.cpp
===================================================================
--- cfe/trunk/lib/StaticAnalyzer/Core/PathDiagnostic.cpp
+++ cfe/trunk/lib/StaticAnalyzer/Core/PathDiagnostic.cpp
@@ -60,6 +60,7 @@
PathDiagnosticCallPiece::~PathDiagnosticCallPiece() {}
PathDiagnosticControlFlowPiece::~PathDiagnosticControlFlowPiece() {}
PathDiagnosticMacroPiece::~PathDiagnosticMacroPiece() {}
+PathDiagnosticNotePiece::~PathDiagnosticNotePiece() {}
void PathPieces::flattenTo(PathPieces &Primary, PathPieces &Current,
bool ShouldFlattenMacros) const {
@@ -95,6 +96,7 @@
}
case PathDiagnosticPiece::Event:
case PathDiagnosticPiece::ControlFlow:
+ case PathDiagnosticPiece::Note:
Current.push_back(Piece);
break;
}
@@ -342,15 +344,16 @@
}
switch (X.getKind()) {
- case clang::ento::PathDiagnosticPiece::ControlFlow:
+ case PathDiagnosticPiece::ControlFlow:
return compareControlFlow(cast<PathDiagnosticControlFlowPiece>(X),
cast<PathDiagnosticControlFlowPiece>(Y));
- case clang::ento::PathDiagnosticPiece::Event:
+ case PathDiagnosticPiece::Event:
+ case PathDiagnosticPiece::Note:
return None;
- case clang::ento::PathDiagnosticPiece::Macro:
+ case PathDiagnosticPiece::Macro:
return compareMacro(cast<PathDiagnosticMacroPiece>(X),
cast<PathDiagnosticMacroPiece>(Y));
- case clang::ento::PathDiagnosticPiece::Call:
+ case PathDiagnosticPiece::Call:
return compareCall(cast<PathDiagnosticCallPiece>(X),
cast<PathDiagnosticCallPiece>(Y));
}
@@ -1098,6 +1101,10 @@
ID.Add(**I);
}
+void PathDiagnosticNotePiece::Profile(llvm::FoldingSetNodeID &ID) const {
+ PathDiagnosticSpotPiece::Profile(ID);
+}
+
void PathDiagnostic::Profile(llvm::FoldingSetNodeID &ID) const {
ID.Add(getLocation());
ID.AddString(BugType);
Index: cfe/trunk/lib/StaticAnalyzer/Core/PlistDiagnostics.cpp
===================================================================
--- cfe/trunk/lib/StaticAnalyzer/Core/PlistDiagnostics.cpp
+++ cfe/trunk/lib/StaticAnalyzer/Core/PlistDiagnostics.cpp
@@ -281,6 +281,9 @@
ReportMacro(o, cast<PathDiagnosticMacroPiece>(P), FM, SM, LangOpts,
indent, depth);
break;
+ case PathDiagnosticPiece::Note:
+ // FIXME: Extend the plist format to support those.
+ break;
}
}
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