clang  14.0.0git
Macros | Functions
NullabilityChecker.cpp File Reference
#include "clang/StaticAnalyzer/Checkers/BuiltinCheckerRegistration.h"
#include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
#include "clang/StaticAnalyzer/Core/Checker.h"
#include "clang/StaticAnalyzer/Core/CheckerManager.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerHelpers.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/Path.h"
Include dependency graph for NullabilityChecker.cpp:

Go to the source code of this file.

Macros

#define REGISTER_CHECKER(name, trackingRequired)
 

Functions

 REGISTER_MAP_WITH_PROGRAMSTATE (NullabilityMap, const MemRegion *, NullabilityState) enum class NullConstraint
 
static NullConstraint getNullConstraint (DefinedOrUnknownSVal Val, ProgramStateRef State)
 
static bool checkValueAtLValForInvariantViolation (ProgramStateRef State, SVal LV, QualType T)
 Returns true when the value stored at the given location has been constrained to null after being passed through an object of nonnnull type. More...
 
static bool checkParamsForPreconditionViolation (ArrayRef< ParmVarDecl * > Params, ProgramStateRef State, const LocationContext *LocCtxt)
 
static bool checkSelfIvarsForInvariantViolation (ProgramStateRef State, const LocationContext *LocCtxt)
 
static bool checkInvariantViolation (ProgramStateRef State, ExplodedNode *N, CheckerContext &C)
 
static const ExprlookThroughImplicitCasts (const Expr *E)
 Find the outermost subexpression of E that is not an implicit cast. More...
 
static Nullability getReceiverNullability (const ObjCMethodCall &M, ProgramStateRef State)
 
static const ExprmatchValueExprForBind (const Stmt *S)
 For a given statement performing a bind, attempt to syntactically match the expression resulting in the bound value. More...
 
static bool isARCNilInitializedLocal (CheckerContext &C, const Stmt *S)
 Returns true if. More...
 

Macro Definition Documentation

◆ REGISTER_CHECKER

#define REGISTER_CHECKER (   name,
  trackingRequired 
)
Value:
void ento::register##name##Checker(CheckerManager &mgr) { \
NullabilityChecker *checker = mgr.getChecker<NullabilityChecker>(); \
checker->ChecksEnabled[NullabilityChecker::CK_##name] = true; \
checker->CheckNames[NullabilityChecker::CK_##name] = \
mgr.getCurrentCheckerName(); \
checker->NeedTracking = checker->NeedTracking || trackingRequired; \
checker->NoDiagnoseCallsToSystemHeaders = \
checker->NoDiagnoseCallsToSystemHeaders || \
mgr.getAnalyzerOptions().getCheckerBooleanOption( \
checker, "NoDiagnoseCallsToSystemHeaders", true); \
} \
\
bool ento::shouldRegister##name##Checker(const CheckerManager &mgr) { \
return true; \
}

Definition at line 1239 of file NullabilityChecker.cpp.

Function Documentation

◆ checkInvariantViolation()

static bool checkInvariantViolation ( ProgramStateRef  State,
ExplodedNode *  N,
CheckerContext &  C 
)
static

◆ checkParamsForPreconditionViolation()

static bool checkParamsForPreconditionViolation ( ArrayRef< ParmVarDecl * >  Params,
ProgramStateRef  State,
const LocationContext LocCtxt 
)
static

Definition at line 361 of file NullabilityChecker.cpp.

References checkValueAtLValForInvariantViolation(), and State.

Referenced by checkInvariantViolation().

◆ checkSelfIvarsForInvariantViolation()

static bool checkSelfIvarsForInvariantViolation ( ProgramStateRef  State,
const LocationContext LocCtxt 
)
static

◆ checkValueAtLValForInvariantViolation()

static bool checkValueAtLValForInvariantViolation ( ProgramStateRef  State,
SVal  LV,
QualType  T 
)
static

Returns true when the value stored at the given location has been constrained to null after being passed through an object of nonnnull type.

Definition at line 335 of file NullabilityChecker.cpp.

References clang::ento::getNullabilityAnnotation(), getNullConstraint(), clang::ento::Nonnull, and State.

Referenced by checkParamsForPreconditionViolation(), and checkSelfIvarsForInvariantViolation().

◆ getNullConstraint()

static NullConstraint getNullConstraint ( DefinedOrUnknownSVal  Val,
ProgramStateRef  State 
)
static

◆ getReceiverNullability()

static Nullability getReceiverNullability ( const ObjCMethodCall &  M,
ProgramStateRef  State 
)
static

◆ isARCNilInitializedLocal()

static bool isARCNilInitializedLocal ( CheckerContext &  C,
const Stmt S 
)
static

Returns true if.

Parameters
Sis a DeclStmt for a local variable that ObjC automated reference counting initialized with zero.

Definition at line 1052 of file NullabilityChecker.cpp.

◆ lookThroughImplicitCasts()

static const Expr* lookThroughImplicitCasts ( const Expr E)
static

Find the outermost subexpression of E that is not an implicit cast.

This looks through the implicit casts to _Nonnull that ARC adds to return expressions of ObjC types when the return type of the function or method is non-null but the express is not.

Definition at line 563 of file NullabilityChecker.cpp.

References clang::Expr::IgnoreImpCasts().

◆ matchValueExprForBind()

static const Expr* matchValueExprForBind ( const Stmt S)
static

For a given statement performing a bind, attempt to syntactically match the expression resulting in the bound value.

Definition at line 1028 of file NullabilityChecker.cpp.

◆ REGISTER_MAP_WITH_PROGRAMSTATE()

REGISTER_MAP_WITH_PROGRAMSTATE ( NullabilityMap  ,
const MemRegion *  ,
NullabilityState   
)

Definition at line 235 of file NullabilityChecker.cpp.

clang::transformer::name
RangeSelector name(std::string ID)
Given a node with a "name", (like NamedDecl, DeclRefExpr, CxxCtorInitializer, and TypeLoc) selects th...
Definition: RangeSelector.cpp:200