clang 20.0.0git
Public Member Functions | Protected Member Functions | List of all members
clang::ento::SimpleConstraintManager Class Referenceabstract

#include "clang/StaticAnalyzer/Core/PathSensitive/SimpleConstraintManager.h"

Inheritance diagram for clang::ento::SimpleConstraintManager:
Inheritance graph
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Public Member Functions

 SimpleConstraintManager (ExprEngine *exprengine, SValBuilder &SB)
 
 ~SimpleConstraintManager () override
 
- Public Member Functions inherited from clang::ento::ConstraintManager
 ConstraintManager ()=default
 
virtual ~ConstraintManager ()
 
virtual bool haveEqualConstraints (ProgramStateRef S1, ProgramStateRef S2) const =0
 
ProgramStateRef assume (ProgramStateRef state, DefinedSVal Cond, bool Assumption)
 
ProgramStatePair assumeDual (ProgramStateRef State, DefinedSVal Cond)
 Returns a pair of states (StTrue, StFalse) where the given condition is assumed to be true or false, respectively.
 
ProgramStateRef assumeInclusiveRange (ProgramStateRef State, NonLoc Value, const llvm::APSInt &From, const llvm::APSInt &To, bool InBound)
 
ProgramStatePair assumeInclusiveRangeDual (ProgramStateRef State, NonLoc Value, const llvm::APSInt &From, const llvm::APSInt &To)
 Returns a pair of states (StInRange, StOutOfRange) where the given value is assumed to be in the range or out of the range, respectively.
 
virtual const llvm::APSInt * getSymVal (ProgramStateRef state, SymbolRef sym) const
 If a symbol is perfectly constrained to a constant, attempt to return the concrete value.
 
virtual const llvm::APSInt * getSymMinVal (ProgramStateRef state, SymbolRef sym) const
 Attempt to return the minimal possible value for a given symbol.
 
virtual const llvm::APSInt * getSymMaxVal (ProgramStateRef state, SymbolRef sym) const
 Attempt to return the minimal possible value for a given symbol.
 
virtual ProgramStateRef removeDeadBindings (ProgramStateRef state, SymbolReaper &SymReaper)=0
 Scan all symbols referenced by the constraints.
 
virtual void printJson (raw_ostream &Out, ProgramStateRef State, const char *NL, unsigned int Space, bool IsDot) const =0
 
virtual void printValue (raw_ostream &Out, ProgramStateRef State, SymbolRef Sym)
 
ConditionTruthVal isNull (ProgramStateRef State, SymbolRef Sym)
 Convenience method to query the state to see if a symbol is null or not null, or if neither assumption can be made.
 

Protected Member Functions

virtual ProgramStateRef assumeSym (ProgramStateRef State, SymbolRef Sym, bool Assumption)=0
 Given a symbolic expression that can be reasoned about, assume that it is true/false and generate the new program state.
 
virtual ProgramStateRef assumeSymInclusiveRange (ProgramStateRef State, SymbolRef Sym, const llvm::APSInt &From, const llvm::APSInt &To, bool InRange)=0
 Given a symbolic expression within the range [From, To], assume that it is true/false and generate the new program state.
 
virtual ProgramStateRef assumeSymUnsupported (ProgramStateRef State, SymbolRef Sym, bool Assumption)=0
 Given a symbolic expression that cannot be reasoned about, assume that it is zero/nonzero and add it directly to the solver state.
 
ProgramStateRef assumeInternal (ProgramStateRef State, DefinedSVal Cond, bool Assumption) override
 Ensures that the DefinedSVal conditional is expressed as a NonLoc by creating boolean casts to handle Loc's.
 
ProgramStateRef assumeInclusiveRangeInternal (ProgramStateRef State, NonLoc Value, const llvm::APSInt &From, const llvm::APSInt &To, bool InRange) override
 
SValBuildergetSValBuilder () const
 
BasicValueFactorygetBasicVals () const
 
SymbolManagergetSymbolManager () const
 
- Protected Member Functions inherited from clang::ento::ConstraintManager
virtual ProgramStateRef assumeInternal (ProgramStateRef state, DefinedSVal Cond, bool Assumption)=0
 
virtual ProgramStateRef assumeInclusiveRangeInternal (ProgramStateRef State, NonLoc Value, const llvm::APSInt &From, const llvm::APSInt &To, bool InBound)=0
 
virtual bool canReasonAbout (SVal X) const =0
 canReasonAbout - Not all ConstraintManagers can accurately reason about all SVal values.
 
virtual ConditionTruthVal checkNull (ProgramStateRef State, SymbolRef Sym)
 Returns whether or not a symbol is known to be null ("true"), known to be non-null ("false"), or may be either ("underconstrained").
 
template<typename AssumeFunction >
ProgramStatePair assumeDualImpl (ProgramStateRef &State, AssumeFunction &Assume)
 

Additional Inherited Members

- Public Types inherited from clang::ento::ConstraintManager
using ProgramStatePair = std::pair< ProgramStateRef, ProgramStateRef >
 
- Protected Attributes inherited from clang::ento::ConstraintManager
AssumeStackTy AssumeStack
 

Detailed Description

Definition at line 23 of file SimpleConstraintManager.h.

Constructor & Destructor Documentation

◆ SimpleConstraintManager()

clang::ento::SimpleConstraintManager::SimpleConstraintManager ( ExprEngine exprengine,
SValBuilder SB 
)
inline

Definition at line 28 of file SimpleConstraintManager.h.

◆ ~SimpleConstraintManager()

clang::ento::SimpleConstraintManager::~SimpleConstraintManager ( )
override

Definition at line 24 of file SimpleConstraintManager.cpp.

Member Function Documentation

◆ assumeInclusiveRangeInternal()

ProgramStateRef clang::ento::SimpleConstraintManager::assumeInclusiveRangeInternal ( ProgramStateRef  State,
NonLoc  Value,
const llvm::APSInt &  From,
const llvm::APSInt &  To,
bool  InRange 
)
overrideprotectedvirtual

◆ assumeInternal()

ProgramStateRef clang::ento::SimpleConstraintManager::assumeInternal ( ProgramStateRef  State,
DefinedSVal  Cond,
bool  Assumption 
)
overrideprotectedvirtual

◆ assumeSym()

virtual ProgramStateRef clang::ento::SimpleConstraintManager::assumeSym ( ProgramStateRef  State,
SymbolRef  Sym,
bool  Assumption 
)
protectedpure virtual

Given a symbolic expression that can be reasoned about, assume that it is true/false and generate the new program state.

Implemented in clang::ento::RangedConstraintManager, and clang::ento::SMTConstraintManager.

◆ assumeSymInclusiveRange()

virtual ProgramStateRef clang::ento::SimpleConstraintManager::assumeSymInclusiveRange ( ProgramStateRef  State,
SymbolRef  Sym,
const llvm::APSInt &  From,
const llvm::APSInt &  To,
bool  InRange 
)
protectedpure virtual

Given a symbolic expression within the range [From, To], assume that it is true/false and generate the new program state.

This function is used to handle case ranges produced by a language extension for switch case statements.

Implemented in clang::ento::RangedConstraintManager, and clang::ento::SMTConstraintManager.

Referenced by assumeInclusiveRangeInternal().

◆ assumeSymUnsupported()

virtual ProgramStateRef clang::ento::SimpleConstraintManager::assumeSymUnsupported ( ProgramStateRef  State,
SymbolRef  Sym,
bool  Assumption 
)
protectedpure virtual

Given a symbolic expression that cannot be reasoned about, assume that it is zero/nonzero and add it directly to the solver state.

Implemented in clang::ento::RangedConstraintManager, and clang::ento::SMTConstraintManager.

◆ getBasicVals()

BasicValueFactory & clang::ento::SimpleConstraintManager::getBasicVals ( ) const
inlineprotected

◆ getSValBuilder()

SValBuilder & clang::ento::SimpleConstraintManager::getSValBuilder ( ) const
inlineprotected

◆ getSymbolManager()

SymbolManager & clang::ento::SimpleConstraintManager::getSymbolManager ( ) const
inlineprotected

The documentation for this class was generated from the following files: