clang
3.9.0
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MemRegion - The root abstract class for all memory regions. More...
#include <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 |
virtual bool | isSubRegionOf (const MemRegion *R) const |
Check if the region is a subregion of the given region. More... | |
const MemRegion * | StripCasts (bool StripBaseCasts=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... | |
clang::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 79 of file MemRegion.h.
Definition at line 81 of file MemRegion.h.
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inlineprotected |
Definition at line 91 of file MemRegion.h.
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protectedvirtual |
Definition at line 134 of file MemRegion.cpp.
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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 568 of file MemRegion.cpp.
References canPrintPrettyAsExpr().
Referenced by printPretty(), and clang::ento::FindLastStoreBRVisitor::VisitNode().
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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::CXXBaseObjectRegion, clang::ento::ObjCIvarRegion, clang::ento::FieldRegion, and clang::ento::VarRegion.
Definition at line 572 of file MemRegion.cpp.
Referenced by canPrintPretty(), clang::ento::FieldRegion::canPrintPrettyAsExpr(), clang::ento::CXXBaseObjectRegion::canPrintPrettyAsExpr(), and getDescriptiveName().
LLVM_DUMP_METHOD void MemRegion::dump | ( | ) | const |
Definition at line 437 of file MemRegion.cpp.
References dumpToStream().
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virtual |
Reimplemented in 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 448 of file MemRegion.cpp.
Referenced by dump(), getString(), and llvm::operator<<().
const RegionTy * clang::ento::MemRegion::getAs | ( | ) | const |
Definition at line 1106 of file MemRegion.h.
Referenced by GetAllocationSite(), clang::ento::SVal::getAsFunctionDecl(), getDescriptiveName(), clang::ento::ExprEngine::notifyCheckersOfPointerEscape(), and parameterTypeFromSVal().
RegionOffset MemRegion::getAsOffset | ( | ) | const |
Compute the offset within the top level memory object.
Definition at line 1246 of file MemRegion.cpp.
References clang::RecordDecl::field_begin(), clang::RecordDecl::field_end(), clang::ento::SVal::getAs(), clang::Type::getAsCXXRecordDecl(), clang::ASTContext::getASTRecordLayout(), clang::ASTRecordLayout::getBaseClassOffset(), clang::ASTContext::getCharWidth(), getContext(), clang::ento::FieldRegion::getDecl(), clang::ento::CXXBaseObjectRegion::getDecl(), clang::ASTRecordLayout::getFieldOffset(), clang::ento::ElementRegion::getIndex(), getKind(), clang::FieldDecl::getParent(), clang::Type::getPointeeType(), clang::CharUnits::getQuantity(), clang::ento::SubRegion::getSuperRegion(), clang::ASTContext::getTypeSize(), clang::ento::ElementRegion::getValueType(), clang::ASTRecordLayout::getVBaseClassOffset(), clang::TagDecl::isCompleteDefinition(), isImmediateBase(), clang::Type::isIncompleteType(), clang::TagDecl::isUnion(), clang::ento::CXXBaseObjectRegion::isVirtual(), clang::CXXRecordDecl::isVirtuallyDerivedFrom(), and clang::ento::RegionOffset::Symbolic.
const MemRegion * MemRegion::getBaseRegion | ( | ) | const |
Definition at line 1129 of file MemRegion.cpp.
References getKind().
Referenced by GetAllocationSite(), getExistingLazyBinding(), clang::CXXInstanceCall::getExtraInvalidatedValues(), clang::ento::BugReport::isInteresting(), clang::ento::SymbolReaper::isLiveRegion(), clang::ento::BugReport::markInteresting(), clang::ento::ScanReachableSymbols::scan(), and sourceRange().
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inline |
Definition at line 1307 of file MemRegion.h.
References clang::ento::MemRegionManager::getContext(), and getMemRegionManager().
Referenced by clang::ento::StringRegion::dumpToStream(), clang::ento::ObjCStringRegion::dumpToStream(), clang::ento::ElementRegion::getAsArrayOffset(), getAsOffset(), clang::ento::MemRegionManager::getElementRegionWithSuper(), clang::ento::TypedValueRegion::getLocationType(), and clang::ento::FunctionCodeRegion::getLocationType().
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 635 of file MemRegion.cpp.
References canPrintPrettyAsExpr(), clang::ento::SVal::getAs(), getAs(), getDescriptiveName(), clang::ento::ElementRegion::getIndex(), clang::ento::SubRegion::getSuperRegion(), and printPrettyAsExpr().
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 148 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(), computeExtentBegin(), getAsOffset(), getBaseRegion(), clang::ento::MemSpaceRegion::Profile(), clang::ento::StaticGlobalSpaceRegion::Profile(), clang::ento::StackSpaceRegion::Profile(), clang::ento::DeclRegion::Profile(), StripCasts(), and clang::ento::MemRegionVisitor< SValExplainer, std::string >::Visit().
const MemSpaceRegion * MemRegion::getMemorySpace | ( | ) | const |
Definition at line 1097 of file MemRegion.cpp.
References clang::ento::SubRegion::getSuperRegion().
Referenced by clang::ento::VarRegion::getStackFrame(), hasGlobalsOrParametersStorage(), hasStackNonParametersStorage(), hasStackParametersStorage(), hasStackStorage(), and isInitializationOfVar().
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pure virtual |
Implemented in clang::ento::SubRegion, and clang::ento::MemSpaceRegion.
Referenced by getContext(), and clang::ento::SubRegion::getMemRegionManager().
std::string MemRegion::getString | ( | ) | const |
Get a string representation of a region for debug use.
Definition at line 441 of file MemRegion.cpp.
References dumpToStream().
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 1177 of file MemRegion.cpp.
References clang::ento::SubRegion::getSuperRegion().
Referenced by clang::ento::SVal::getAsLocSymbol().
bool MemRegion::hasGlobalsOrParametersStorage | ( | ) | const |
Definition at line 1121 of file MemRegion.cpp.
References getMemorySpace().
bool MemRegion::hasStackNonParametersStorage | ( | ) | const |
Definition at line 1113 of file MemRegion.cpp.
References getMemorySpace().
bool MemRegion::hasStackParametersStorage | ( | ) | const |
Definition at line 1117 of file MemRegion.cpp.
References getMemorySpace().
bool MemRegion::hasStackStorage | ( | ) | const |
Definition at line 1109 of file MemRegion.cpp.
References getMemorySpace().
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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 152 of file MemRegion.h.
Referenced by clang::ento::StoreManager::castRegion(), clang::ento::ProgramState::getSValAsScalarOrLoc(), and clang::ento::FindLastStoreBRVisitor::VisitNode().
Check if the region is a subregion of the given region.
Reimplemented in clang::ento::SubRegion.
Definition at line 1147 of file MemRegion.cpp.
Referenced by collectSubRegionBindings(), and clang::ento::UndefOrNullArgVisitor::VisitNode().
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Print the region for use in diagnostics.
Reimplemented in clang::ento::FieldRegion.
Definition at line 576 of file MemRegion.cpp.
References canPrintPretty(), and printPrettyAsExpr().
Referenced by clang::ento::FindLastStoreBRVisitor::VisitNode().
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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::CXXBaseObjectRegion, clang::ento::ObjCIvarRegion, clang::ento::FieldRegion, and clang::ento::VarRegion.
Definition at line 583 of file MemRegion.cpp.
Referenced by getDescriptiveName(), printPretty(), clang::ento::FieldRegion::printPrettyAsExpr(), and clang::ento::CXXBaseObjectRegion::printPrettyAsExpr().
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pure virtual |
Implemented in clang::ento::CXXBaseObjectRegion, clang::ento::CXXTempObjectRegion, clang::ento::ElementRegion, 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 675 of file MemRegion.cpp.
References getBaseRegion(), clang::ento::VarRegion::getDecl(), clang::ento::FieldRegion::getDecl(), clang::VarDecl::getSourceRange(), 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 1155 of file MemRegion.cpp.
References clang::ento::ElementRegion::getIndex(), getKind(), clang::ento::SubRegion::getSuperRegion(), and clang::ento::SVal::isZeroConstant().
Referenced by clang::ento::StoreManager::castRegion(), clang::ento::StoreManager::evalDynamicCast(), clang::ento::SVal::getAsLocSymbol(), clang::ento::getDynamicTypeInfo(), clang::ento::StoreManager::getLValueElement(), clang::CXXInstanceCall::getRuntimeDefinition(), clang::ento::ExprEngine::notifyCheckersOfPointerEscape(), clang::ento::setDynamicTypeInfo(), clang::ento::loc::MemRegionVal::stripCasts(), and clang::ento::UndefOrNullArgVisitor::VisitNode().