clang
6.0.0
|
#include "clang/StaticAnalyzer/Core/PathSensitive/ConstraintManager.h"
Public Types | |
typedef std::pair< ProgramStateRef, ProgramStateRef > | ProgramStatePair |
Public Member Functions | |
ConstraintManager () | |
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 |
A flag to indicate that clients should be notified of assumptions. More... | |
Definition at line 62 of file ConstraintManager.h.
typedef std::pair<ProgramStateRef, ProgramStateRef> clang::ento::ConstraintManager::ProgramStatePair |
Definition at line 71 of file ConstraintManager.h.
|
inline |
Definition at line 64 of file ConstraintManager.h.
References clang::CodeGen::state.
|
virtual |
Definition at line 19 of file ConstraintManager.cpp.
|
pure virtual |
Implemented in clang::ento::SimpleConstraintManager.
Referenced by clang::ento::ProgramState::assumeInBound().
|
inline |
Returns a pair of states (StTrue, StFalse) where the given condition is assumed to be true or false, respectively.
Definition at line 75 of file ConstraintManager.h.
References State.
Referenced by checkNull().
|
pure virtual |
Implemented in clang::ento::SimpleConstraintManager.
|
inlinevirtual |
Definition at line 108 of file ConstraintManager.h.
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().
|
protectedvirtual |
Returns whether or not a symbol is known to be null ("true"), known to be non-null ("false"), or may be either ("underconstrained").
Definition at line 28 of file ConstraintManager.cpp.
References assumeDual(), getLocFromSymbol(), clang::ento::SymExpr::getType(), clang::ento::Loc::isLocType(), and P.
|
inlinevirtual |
Definition at line 152 of file ConstraintManager.h.
|
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.
Definition at line 137 of file ConstraintManager.h.
|
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 156 of file ConstraintManager.h.
Referenced by didPreviousFreeFail(), and isLeaked().
|
pure virtual |
Referenced by clang::ento::ProgramState::print().
|
pure virtual |
Scan all symbols referenced by the constraints.
If the symbol is not alive, remove it.
|
protected |
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 169 of file ConstraintManager.h.
Referenced by clang::ento::SimpleConstraintManager::assume().