#include "clang/StaticAnalyzer/Core/PathSensitive/ConstraintManager.h"
Public Types | |
| using | ProgramStatePair = std::pair< ProgramStateRef, ProgramStateRef > |
Public Member Functions | |
| ConstraintManager ()=default | |
| virtual | ~ConstraintManager () |
| virtual ProgramStateRef | assume (ProgramStateRef state, DefinedSVal Cond, bool Assumption)=0 |
| 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. More... | |
| virtual ProgramStateRef | assumeInclusiveRange (ProgramStateRef State, NonLoc Value, const llvm::APSInt &From, const llvm::APSInt &To, bool InBound)=0 |
| virtual ProgramStatePair | assumeInclusiveRangeDual (ProgramStateRef State, NonLoc Value, const llvm::APSInt &From, const llvm::APSInt &To) |
| 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. More... | |
| virtual ProgramStateRef | removeDeadBindings (ProgramStateRef state, SymbolReaper &SymReaper)=0 |
| Scan all symbols referenced by the constraints. More... | |
| virtual void | print (ProgramStateRef state, raw_ostream &Out, const char *nl, const char *sep)=0 |
| virtual void | EndPath (ProgramStateRef state) |
| 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. More... | |
Protected Member Functions | |
| virtual bool | canReasonAbout (SVal X) const =0 |
| canReasonAbout - Not all ConstraintManagers can accurately reason about all SVal values. More... | |
| 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"). More... | |
Protected Attributes | |
| bool | NotifyAssumeClients = true |
| A flag to indicate that clients should be notified of assumptions. More... | |
Detailed Description
Definition at line 78 of file ConstraintManager.h.
Member Typedef Documentation
◆ ProgramStatePair
| using clang::ento::ConstraintManager::ProgramStatePair = std::pair<ProgramStateRef, ProgramStateRef> |
Definition at line 87 of file ConstraintManager.h.
Constructor & Destructor Documentation
◆ ConstraintManager()
|
default |
◆ ~ConstraintManager()
|
virtualdefault |
Member Function Documentation
◆ assume()
|
pure virtual |
Implemented in clang::ento::SimpleConstraintManager.
Referenced by clang::ento::ProgramState::assumeInBound().
◆ assumeDual()
|
inline |
Returns a pair of states (StTrue, StFalse) where the given condition is assumed to be true or false, respectively.
Definition at line 91 of file ConstraintManager.h.
References State.
Referenced by checkNull().
◆ assumeInclusiveRange()
|
pure virtual |
Implemented in clang::ento::SimpleConstraintManager.
◆ assumeInclusiveRangeDual()
|
inlinevirtual |
Definition at line 124 of file ConstraintManager.h.
◆ canReasonAbout()
canReasonAbout - Not all ConstraintManagers can accurately reason about all SVal values.
This method returns true if the ConstraintManager can reasonably handle a given SVal value. This is typically queried by ExprEngine to determine if the value should be replaced with a conjured symbolic value in order to recover some precision.
Referenced by clang::ento::SimpleConstraintManager::assume(), and clang::ento::SimpleConstraintManager::assumeInclusiveRange().
◆ checkNull()
|
protectedvirtual |
Returns whether or not a symbol is known to be null ("true"), known to be non-null ("false"), or may be either ("underconstrained").
Reimplemented in clang::ento::SMTConstraintManager< ConstraintSMT, SMTExprTy >.
Definition at line 33 of file ConstraintManager.cpp.
References assumeDual(), getLocFromSymbol(), clang::ento::SymExpr::getType(), clang::ento::Loc::isLocType(), and P.
◆ EndPath()
|
inlinevirtual |
Definition at line 168 of file ConstraintManager.h.
◆ getSymVal()
|
inlinevirtual |
If a symbol is perfectly constrained to a constant, attempt to return the concrete value.
Note that a ConstraintManager is not obligated to return a concretized value for a symbol, even if it is perfectly constrained.
Reimplemented in clang::ento::SMTConstraintManager< ConstraintSMT, SMTExprTy >.
Definition at line 153 of file ConstraintManager.h.
◆ isNull()
|
inline |
Convenience method to query the state to see if a symbol is null or not null, or if neither assumption can be made.
Definition at line 172 of file ConstraintManager.h.
Referenced by clang::ento::retaincountchecker::RetainCountChecker::checkPostStmt(), and clang::ento::retaincountchecker::RetainCountChecker::evalAssume().
◆ print()
|
pure virtual |
Implemented in clang::ento::SMTConstraintManager< ConstraintSMT, SMTExprTy >.
◆ removeDeadBindings()
|
pure virtual |
Scan all symbols referenced by the constraints.
If the symbol is not alive, remove it.
Implemented in clang::ento::SMTConstraintManager< ConstraintSMT, SMTExprTy >.
Referenced by clang::ento::ExprEngine::removeDead().
Member Data Documentation
◆ NotifyAssumeClients
A flag to indicate that clients should be notified of assumptions.
By default this is the case, but sometimes this needs to be restricted to avoid infinite recursions within the ConstraintManager.
Note that this flag allows the ConstraintManager to be re-entrant, but not thread-safe.
Definition at line 185 of file ConstraintManager.h.
Referenced by clang::ento::SimpleConstraintManager::assume().
The documentation for this class was generated from the following files:
- include/clang/StaticAnalyzer/Core/PathSensitive/ConstraintManager.h
- lib/StaticAnalyzer/Core/ConstraintManager.cpp
