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// BugReporter.h - Generate PathDiagnostics ----------*- C++ -*--//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines BugReporter, a utility class for generating
// PathDiagnostics for analyses based on ValueState.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_ANALYSIS_BUGREPORTER
#define LLVM_CLANG_ANALYSIS_BUGREPORTER
#include "clang/Basic/SourceLocation.h"
#include "clang/Analysis/PathSensitive/ValueState.h"
#include "clang/Analysis/PathSensitive/ExplodedGraph.h"
#include "llvm/ADT/SmallPtrSet.h"
#include <vector>
namespace clang {
class PathDiagnostic;
class PathDiagnosticPiece;
class PathDiagnosticClient;
class ASTContext;
class Diagnostic;
class BugReporter;
class GRExprEngine;
class ValueState;
class Stmt;
class BugReport;
class BugType {
public:
BugType() {}
virtual ~BugType();
virtual const char* getName() const = 0;
virtual const char* getDescription() const { return getName(); }
virtual std::pair<const char**,const char**> getExtraDescriptiveText() {
return std::pair<const char**, const char**>(0, 0);
}
virtual void EmitWarnings(BugReporter& BR) {}
virtual void GetErrorNodes(std::vector<ExplodedNode<ValueState>*>& Nodes) {}
virtual bool isCached(BugReport& R) = 0;
};
class BugTypeCacheLocation : public BugType {
llvm::SmallPtrSet<void*,10> CachedErrors;
public:
BugTypeCacheLocation() {}
virtual ~BugTypeCacheLocation() {}
virtual bool isCached(BugReport& R);
};
class BugReport {
BugType& Desc;
ExplodedNode<ValueState> *EndNode;
SourceRange R;
public:
BugReport(BugType& D, ExplodedNode<ValueState> *n) : Desc(D), EndNode(n) {}
virtual ~BugReport();
const BugType& getBugType() const { return Desc; }
BugType& getBugType() { return Desc; }
ExplodedNode<ValueState>* getEndNode() const { return EndNode; }
Stmt* getStmt(BugReporter& BR) const;
const char* getName() const { return getBugType().getName(); }
virtual const char* getDescription() const {
return getBugType().getDescription();
}
virtual std::pair<const char**,const char**> getExtraDescriptiveText() {
return getBugType().getExtraDescriptiveText();
}
virtual PathDiagnosticPiece* getEndPath(BugReporter& BR,
ExplodedNode<ValueState>* N);
virtual FullSourceLoc getLocation(SourceManager& Mgr);
virtual void getRanges(BugReporter& BR,const SourceRange*& beg,
const SourceRange*& end);
virtual PathDiagnosticPiece* VisitNode(ExplodedNode<ValueState>* N,
ExplodedNode<ValueState>* PrevN,
ExplodedGraph<ValueState>& G,
BugReporter& BR);
};
class RangedBugReport : public BugReport {
std::vector<SourceRange> Ranges;
public:
RangedBugReport(BugType& D, ExplodedNode<ValueState> *n)
: BugReport(D, n) {}
virtual ~RangedBugReport();
void addRange(SourceRange R) { Ranges.push_back(R); }
virtual void getRanges(BugReporter& BR,const SourceRange*& beg,
const SourceRange*& end) {
if (Ranges.empty()) {
beg = NULL;
end = NULL;
}
else {
beg = &Ranges[0];
end = beg + Ranges.size();
}
}
};
class BugReporter {
Diagnostic& Diag;
PathDiagnosticClient* PD;
ASTContext& Ctx;
GRExprEngine& Eng;
public:
BugReporter(Diagnostic& diag, PathDiagnosticClient* pd,
ASTContext& ctx, GRExprEngine& eng)
: Diag(diag), PD(pd), Ctx(ctx), Eng(eng) {}
~BugReporter();
Diagnostic& getDiagnostic() { return Diag; }
PathDiagnosticClient* getDiagnosticClient() { return PD; }
ASTContext& getContext() { return Ctx; }
SourceManager& getSourceManager() { return Ctx.getSourceManager(); }
ExplodedGraph<ValueState>& getGraph();
GRExprEngine& getEngine() { return Eng; }
CFG& getCFG() { return getGraph().getCFG(); }
void EmitWarning(BugReport& R);
void GeneratePathDiagnostic(PathDiagnostic& PD, BugReport& R);
};
} // end clang namespace
#endif
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