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//== RetainCountDiagnostics.h - Checks for leaks and other issues -*- C++ -*--//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file defines diagnostics for RetainCountChecker, which implements
// a reference count checker for Core Foundation and Cocoa on (Mac OS X).
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_LIB_STATICANALYZER_CHECKERS_RETAINCOUNTCHECKER_DIAGNOSTICS_H
#define LLVM_CLANG_LIB_STATICANALYZER_CHECKERS_RETAINCOUNTCHECKER_DIAGNOSTICS_H
#include "clang/Analysis/RetainSummaryManager.h"
#include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
#include "clang/StaticAnalyzer/Core/BugReporter/BugReporterVisitors.h"
#include "clang/StaticAnalyzer/Core/BugReporter/PathDiagnostic.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h"
namespace clang {
namespace ento {
namespace retaincountchecker {
class RefCountBug : public BugType {
public:
enum RefCountBugType {
UseAfterRelease,
ReleaseNotOwned,
DeallocNotOwned,
FreeNotOwned,
OverAutorelease,
ReturnNotOwnedForOwned,
LeakWithinFunction,
LeakAtReturn,
};
RefCountBug(const CheckerBase *checker, RefCountBugType BT);
StringRef getDescription() const;
RefCountBugType getBugType() const {
return BT;
}
const CheckerBase *getChecker() const {
return Checker;
}
private:
RefCountBugType BT;
const CheckerBase *Checker;
static StringRef bugTypeToName(RefCountBugType BT);
};
class RefCountReport : public BugReport {
protected:
SymbolRef Sym;
bool isLeak = false;
public:
RefCountReport(const RefCountBug &D, const LangOptions &LOpts,
ExplodedNode *n, SymbolRef sym,
bool isLeak=false);
RefCountReport(const RefCountBug &D, const LangOptions &LOpts,
ExplodedNode *n, SymbolRef sym,
StringRef endText);
llvm::iterator_range<ranges_iterator> getRanges() override {
if (!isLeak)
return BugReport::getRanges();
return llvm::make_range(ranges_iterator(), ranges_iterator());
}
};
class RefLeakReport : public RefCountReport {
const MemRegion* AllocBinding;
const Stmt *AllocStmt;
// Finds the function declaration where a leak warning for the parameter
// 'sym' should be raised.
void deriveParamLocation(CheckerContext &Ctx, SymbolRef sym);
// Finds the location where a leak warning for 'sym' should be raised.
void deriveAllocLocation(CheckerContext &Ctx, SymbolRef sym);
// Produces description of a leak warning which is printed on the console.
void createDescription(CheckerContext &Ctx);
public:
RefLeakReport(const RefCountBug &D, const LangOptions &LOpts, ExplodedNode *n,
SymbolRef sym, CheckerContext &Ctx);
PathDiagnosticLocation getLocation(const SourceManager &SM) const override {
assert(Location.isValid());
return Location;
}
};
} // end namespace retaincountchecker
} // end namespace ento
} // end namespace clang
#endif
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