You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
101 lines
3.1 KiB
101 lines
3.1 KiB
4 months ago
|
//== 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/PathDiagnostic.h"
|
||
|
|
#include "clang/Analysis/RetainSummaryManager.h"
|
||
|
|
#include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
|
||
|
|
#include "clang/StaticAnalyzer/Core/BugReporter/BugReporterVisitors.h"
|
||
|
|
#include "clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h"
|
||
|
|
|
||
|
|
namespace clang {
|
||
|
|
namespace ento {
|
||
|
|
namespace retaincountchecker {
|
||
|
|
|
||
|
|
class RefCountBug : public BugType {
|
||
|
|
public:
|
||
|
|
enum RefCountBugKind {
|
||
|
|
UseAfterRelease,
|
||
|
|
ReleaseNotOwned,
|
||
|
|
DeallocNotOwned,
|
||
|
|
FreeNotOwned,
|
||
|
|
OverAutorelease,
|
||
|
|
ReturnNotOwnedForOwned,
|
||
|
|
LeakWithinFunction,
|
||
|
|
LeakAtReturn,
|
||
|
|
};
|
||
|
|
RefCountBug(CheckerNameRef Checker, RefCountBugKind BT);
|
||
|
|
StringRef getDescription() const;
|
||
|
|
|
||
|
|
RefCountBugKind getBugType() const { return BT; }
|
||
|
|
|
||
|
|
private:
|
||
|
|
RefCountBugKind BT;
|
||
|
|
static StringRef bugTypeToName(RefCountBugKind BT);
|
||
|
|
};
|
||
|
|
|
||
|
|
class RefCountReport : public PathSensitiveBugReport {
|
||
|
|
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);
|
||
|
|
|
||
|
|
ArrayRef<SourceRange> getRanges() const override {
|
||
|
|
if (!isLeak)
|
||
|
|
return PathSensitiveBugReport::getRanges();
|
||
|
|
return {};
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
class RefLeakReport : public RefCountReport {
|
||
|
|
const MemRegion* AllocBinding;
|
||
|
|
const Stmt *AllocStmt;
|
||
|
|
PathDiagnosticLocation Location;
|
||
|
|
|
||
|
|
// 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 override {
|
||
|
|
assert(Location.isValid());
|
||
|
|
return Location;
|
||
|
|
}
|
||
|
|
|
||
|
|
PathDiagnosticLocation getEndOfPath() const {
|
||
|
|
return PathSensitiveBugReport::getLocation();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
} // end namespace retaincountchecker
|
||
|
|
} // end namespace ento
|
||
|
|
} // end namespace clang
|
||
|
|
|
||
|
|
#endif
|