clang
8.0.0
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MemRegion - The root abstract class for all memory regions. More...
#include "clang/StaticAnalyzer/Core/PathSensitive/MemRegion.h"
Public Types | |
enum | Kind |
Public Member Functions | |
ASTContext & | getContext () const |
virtual void | Profile (llvm::FoldingSetNodeID &ID) const =0 |
virtual MemRegionManager * | getMemRegionManager () const =0 |
const MemSpaceRegion * | getMemorySpace () const |
const MemRegion * | getBaseRegion () const |
const MemRegion * | getMostDerivedObjectRegion () const |
Recursively retrieve the region of the most derived class instance of regions of C++ base class instances. More... | |
virtual bool | isSubRegionOf (const MemRegion *R) const |
Check if the region is a subregion of the given region. More... | |
const MemRegion * | StripCasts (bool StripBaseAndDerivedCasts=true) const |
const SymbolicRegion * | getSymbolicBase () const |
If this is a symbolic region, returns the region. More... | |
bool | hasGlobalsOrParametersStorage () const |
bool | hasStackStorage () const |
bool | hasStackNonParametersStorage () const |
bool | hasStackParametersStorage () const |
RegionOffset | getAsOffset () const |
Compute the offset within the top level memory object. More... | |
std::string | getString () const |
Get a string representation of a region for debug use. More... | |
virtual void | dumpToStream (raw_ostream &os) const |
void | dump () const |
virtual bool | canPrintPretty () const |
Returns true if this region can be printed in a user-friendly way. More... | |
virtual void | printPretty (raw_ostream &os) const |
Print the region for use in diagnostics. More... | |
virtual bool | canPrintPrettyAsExpr () const |
Returns true if this region's textual representation can be used as part of a larger expression. More... | |
virtual void | printPrettyAsExpr (raw_ostream &os) const |
Print the region as expression. More... | |
Kind | getKind () const |
template<typename RegionTy > | |
const RegionTy * | getAs () const |
virtual bool | isBoundable () const |
std::string | getDescriptiveName (bool UseQuotes=true) const |
Get descriptive name for memory region. More... | |
SourceRange | sourceRange () const |
Retrieve source range from memory region. More... | |
Protected Member Functions | |
MemRegion (Kind k) | |
virtual | ~MemRegion () |
MemRegion - The root abstract class for all memory regions.
Definition at line 95 of file MemRegion.h.
Definition at line 97 of file MemRegion.h.
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inlineprotected |
Definition at line 108 of file MemRegion.h.
References dump().
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protectedvirtualdefault |
Referenced by clang::ento::MemRegionManager::getSubRegion().
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virtual |
Returns true if this region can be printed in a user-friendly way.
Reimplemented in clang::ento::FieldRegion.
Definition at line 585 of file MemRegion.cpp.
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virtual |
Returns true if this region's textual representation can be used as part of a larger expression.
Reimplemented in clang::ento::CXXDerivedObjectRegion, clang::ento::CXXBaseObjectRegion, clang::ento::ObjCIvarRegion, clang::ento::FieldRegion, and clang::ento::VarRegion.
Definition at line 589 of file MemRegion.cpp.
Referenced by clang::ento::FieldRegion::canPrintPrettyAsExpr(), clang::ento::CXXBaseObjectRegion::canPrintPrettyAsExpr(), clang::ento::CXXDerivedObjectRegion::canPrintPrettyAsExpr(), and getDescriptiveName().
LLVM_DUMP_METHOD void MemRegion::dump | ( | ) | const |
Definition at line 444 of file MemRegion.cpp.
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virtual |
Reimplemented in clang::ento::CXXDerivedObjectRegion, clang::ento::CXXBaseObjectRegion, clang::ento::CXXTempObjectRegion, clang::ento::ElementRegion, clang::ento::ObjCIvarRegion, clang::ento::FieldRegion, clang::ento::CXXThisRegion, clang::ento::VarRegion, clang::ento::CompoundLiteralRegion, clang::ento::ObjCStringRegion, clang::ento::StringRegion, clang::ento::SymbolicRegion, clang::ento::BlockDataRegion, clang::ento::BlockCodeRegion, clang::ento::FunctionCodeRegion, clang::ento::AllocaRegion, clang::ento::StackArgumentsSpaceRegion, clang::ento::StackLocalsSpaceRegion, clang::ento::UnknownSpaceRegion, clang::ento::HeapSpaceRegion, clang::ento::GlobalInternalSpaceRegion, clang::ento::GlobalImmutableSpaceRegion, clang::ento::GlobalSystemSpaceRegion, clang::ento::StaticGlobalSpaceRegion, and clang::ento::CodeSpaceRegion.
Definition at line 455 of file MemRegion.cpp.
Referenced by clang::ento::operator<<().
const RegionTy * clang::ento::MemRegion::getAs | ( | ) | const |
Definition at line 1231 of file MemRegion.h.
Referenced by clang::ento::mpi::MPIChecker::checkMissingWaits(), clang::ento::retaincountchecker::RetainCountChecker::checkRegionChanges(), dereference(), clang::ento::SVal::getAsFunctionDecl(), getConstructedRegion(), and getDescriptiveName().
RegionOffset MemRegion::getAsOffset | ( | ) | const |
Compute the offset within the top level memory object.
Definition at line 1464 of file MemRegion.cpp.
References calculateOffset(), distance(), clang::ento::MemRegionManager::getAllocator(), clang::ento::MemRegionManager::getCodeRegion(), clang::ento::BlockCodeRegion::getDecl(), clang::AnalysisDeclContext::getReferencedBlockVars(), clang::ento::MemRegionManager::getUnknownRegion(), clang::ento::MemRegionManager::getVarRegion(), clang::Decl::hasAttr(), and clang::VarDecl::hasLocalStorage().
const MemRegion * MemRegion::getBaseRegion | ( | ) | const |
Definition at line 1158 of file MemRegion.cpp.
References getKind().
Referenced by clang::ento::ProgramState::addPartialTaint(), clang::ento::BugReport::isInteresting(), clang::ento::BugReport::markInteresting(), clang::ento::ExprEngine::ProcessAutomaticObjDtor(), and clang::ento::ScanReachableSymbols::scan().
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inline |
Definition at line 1434 of file MemRegion.h.
Referenced by clang::ento::MemRegionManager::getElementRegionWithSuper().
Get descriptive name for memory region.
The name is obtained from the variable/field declaration retrieved from the memory region. Regions that point to an element of an array are returned as: "arr[0]". Regions that point to a struct are returned as: "st.var".
UseQuotes | Set if the name should be quoted. |
Definition at line 660 of file MemRegion.cpp.
References canPrintPrettyAsExpr(), clang::ento::SVal::getAs(), getAs(), getDescriptiveName(), clang::ento::ElementRegion::getIndex(), clang::ento::SubRegion::getSuperRegion(), printPrettyAsExpr(), and llvm::str().
Referenced by getDescriptiveName(), clang::ento::mpi::MPIBugReporter::reportDoubleNonblocking(), clang::ento::mpi::MPIBugReporter::reportMissingWait(), and clang::ento::mpi::MPIBugReporter::reportUnmatchedWait().
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inline |
Definition at line 170 of file MemRegion.h.
Referenced by clang::ento::StoreManager::castRegion(), clang::ento::MemSpaceRegion::classof(), clang::ento::CodeSpaceRegion::classof(), clang::ento::GlobalsSpaceRegion::classof(), clang::ento::StaticGlobalSpaceRegion::classof(), clang::ento::NonStaticGlobalSpaceRegion::classof(), clang::ento::GlobalSystemSpaceRegion::classof(), clang::ento::GlobalImmutableSpaceRegion::classof(), clang::ento::GlobalInternalSpaceRegion::classof(), clang::ento::HeapSpaceRegion::classof(), clang::ento::UnknownSpaceRegion::classof(), clang::ento::StackSpaceRegion::classof(), clang::ento::StackLocalsSpaceRegion::classof(), clang::ento::StackArgumentsSpaceRegion::classof(), clang::ento::SubRegion::classof(), clang::ento::AllocaRegion::classof(), clang::ento::TypedRegion::classof(), clang::ento::TypedValueRegion::classof(), clang::ento::CodeTextRegion::classof(), clang::ento::FunctionCodeRegion::classof(), clang::ento::BlockCodeRegion::classof(), clang::ento::BlockDataRegion::classof(), clang::ento::SymbolicRegion::classof(), clang::ento::StringRegion::classof(), clang::ento::ObjCStringRegion::classof(), clang::ento::CompoundLiteralRegion::classof(), clang::ento::DeclRegion::classof(), clang::ento::VarRegion::classof(), clang::ento::CXXThisRegion::classof(), clang::ento::FieldRegion::classof(), clang::ento::ObjCIvarRegion::classof(), clang::ento::ElementRegion::classof(), clang::ento::CXXTempObjectRegion::classof(), clang::ento::CXXBaseObjectRegion::classof(), clang::ento::CXXDerivedObjectRegion::classof(), getBaseRegion(), StripCasts(), and clang::ento::MemRegionVisitor< SValExplainer, std::string >::Visit().
const MemSpaceRegion * MemRegion::getMemorySpace | ( | ) | const |
Definition at line 1126 of file MemRegion.cpp.
Referenced by clang::ento::SValExplainer::VisitSymbolicRegion().
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pure virtual |
Implemented in clang::ento::SubRegion, and clang::ento::MemSpaceRegion.
Referenced by clang::ento::mpi::MPIChecker::checkMissingWaits(), and clang::ento::SubRegion::getMemRegionManager().
const MemRegion * MemRegion::getMostDerivedObjectRegion | ( | ) | const |
Recursively retrieve the region of the most derived class instance of regions of C++ base class instances.
Definition at line 1179 of file MemRegion.cpp.
std::string MemRegion::getString | ( | ) | const |
Get a string representation of a region for debug use.
Definition at line 448 of file MemRegion.cpp.
Referenced by clang::ento::SValExplainer::VisitStringRegion().
const SymbolicRegion * MemRegion::getSymbolicBase | ( | ) | const |
If this is a symbolic region, returns the region.
Otherwise, goes up the base chain looking for the first symbolic base region.
Definition at line 1217 of file MemRegion.cpp.
Referenced by clang::ento::SVal::getAsLocSymbol().
bool MemRegion::hasGlobalsOrParametersStorage | ( | ) | const |
Definition at line 1150 of file MemRegion.cpp.
bool MemRegion::hasStackNonParametersStorage | ( | ) | const |
Definition at line 1142 of file MemRegion.cpp.
bool MemRegion::hasStackParametersStorage | ( | ) | const |
Definition at line 1146 of file MemRegion.cpp.
bool MemRegion::hasStackStorage | ( | ) | const |
Definition at line 1138 of file MemRegion.cpp.
Referenced by shouldEscapeRegion().
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inlinevirtual |
Reimplemented in clang::ento::CompoundLiteralRegion, clang::ento::ObjCStringRegion, clang::ento::StringRegion, clang::ento::SymbolicRegion, clang::ento::CodeTextRegion, clang::ento::TypedRegion, clang::ento::AllocaRegion, and clang::ento::MemSpaceRegion.
Definition at line 174 of file MemRegion.h.
Referenced by clang::ento::StoreManager::castRegion(), and clang::ento::ProgramState::getSValAsScalarOrLoc().
Check if the region is a subregion of the given region.
Each region is a subregion of itself.
Reimplemented in clang::ento::SubRegion.
Definition at line 1186 of file MemRegion.cpp.
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virtual |
Print the region for use in diagnostics.
Reimplemented in clang::ento::FieldRegion.
Definition at line 593 of file MemRegion.cpp.
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virtual |
Print the region as expression.
When this region represents a subexpression, the method is for printing an expression containing it.
Reimplemented in clang::ento::CXXDerivedObjectRegion, clang::ento::CXXBaseObjectRegion, clang::ento::ObjCIvarRegion, clang::ento::FieldRegion, and clang::ento::VarRegion.
Definition at line 600 of file MemRegion.cpp.
Referenced by getDescriptiveName(), clang::ento::FieldRegion::printPrettyAsExpr(), clang::ento::CXXBaseObjectRegion::printPrettyAsExpr(), and clang::ento::CXXDerivedObjectRegion::printPrettyAsExpr().
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pure virtual |
Implemented in clang::ento::CXXDerivedObjectRegion, clang::ento::CXXBaseObjectRegion, clang::ento::CXXTempObjectRegion, clang::ento::ElementRegion, clang::ento::CXXThisRegion, clang::ento::VarRegion, clang::ento::DeclRegion, clang::ento::CompoundLiteralRegion, clang::ento::ObjCStringRegion, clang::ento::StringRegion, clang::ento::SymbolicRegion, clang::ento::BlockDataRegion, clang::ento::BlockCodeRegion, clang::ento::FunctionCodeRegion, clang::ento::AllocaRegion, clang::ento::StackSpaceRegion, clang::ento::StaticGlobalSpaceRegion, and clang::ento::MemSpaceRegion.
SourceRange MemRegion::sourceRange | ( | ) | const |
Retrieve source range from memory region.
The range retrieval is based on the decl obtained from the memory region. For a VarRegion the range of the base region is returned. For a FieldRegion the range of the field is returned. If no declaration is found, an empty source range is returned. The client is responsible for checking if the returned range is valid.
Definition at line 699 of file MemRegion.cpp.
References clang::ento::FieldRegion::getDecl(), and clang::FieldDecl::getSourceRange().
Referenced by clang::ento::mpi::MPIBugReporter::reportDoubleNonblocking(), clang::ento::mpi::MPIBugReporter::reportMissingWait(), and clang::ento::mpi::MPIBugReporter::reportUnmatchedWait().
Definition at line 1194 of file MemRegion.cpp.
References getKind().
Referenced by clang::ento::StoreManager::castRegion(), clang::ento::retaincountchecker::RetainCountChecker::checkRegionChanges(), clang::ento::SVal::getAsLocSymbol(), clang::ento::getDynamicTypeInfo(), clang::ento::StoreManager::getLValueElement(), clang::ento::setDynamicTypeInfo(), and clang::ento::loc::MemRegionVal::stripCasts().