UninitializedPointee.cpp File Reference

#include "UninitializedObject.h"
#include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
#include "clang/StaticAnalyzer/Core/Checker.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/DynamicType.h"
#include <optional>

Include dependency graph for UninitializedPointee.cpp:

Go to the source code of this file.

Classes
struct	DereferenceInfo

Functions
static std::optional< DereferenceInfo >	dereference (ProgramStateRef State, const FieldRegion *FR)
	Dereferences FR and returns with the pointee's region, and whether it needs to be casted back to it's location type.
static bool	isVoidPointer (QualType T)
	Returns whether T can be (transitively) dereferenced to a void pointer type (void*, void**, ...).

Function Documentation

dereference()

static std::optional< DereferenceInfo > dereference ( ProgramStateRef  State, const FieldRegion *  FR  )

static

Dereferences FR and returns with the pointee's region, and whether it needs to be casted back to it's location type.

If for whatever reason dereferencing fails, returns std::nullopt.

Definition at line 221 of file UninitializedPointee.cpp.

References clang::ento::MemRegion::getAs(), clang::ento::FieldRegion::getDecl(), clang::ento::TypedValueRegion::getLocationType(), clang::Type::getPointeeType(), clang::ento::SubRegion::getSuperRegion(), clang::ValueDecl::getType(), clang::ento::isDereferencableType(), isVoidPointer(), and V.

Referenced by clang::interp::ByteCodeExprGen< Emitter >::VisitCastExpr(), and clang::interp::ByteCodeExprGen< Emitter >::VisitUnaryOperator().

isVoidPointer()

static bool isVoidPointer ( QualType  T )

static

Returns whether T can be (transitively) dereferenced to a void pointer type (void*, void**, ...).

Definition at line 274 of file UninitializedPointee.cpp.

References clang::Type::getPointeeType(), clang::QualType::isNull(), and clang::Type::isVoidPointerType().

Referenced by dereference().