void ConstCastChecker::checkPreStmt(const clang::CXXConstCastExpr *CE,
clang::ento::CheckerContext &C) const
{
const Expr * SE = CE->getSubExprAsWritten();
const CXXRecordDecl * CRD = 0;
if (SE->getType()->isPointerType()) CRD = SE->getType()->getPointeeCXXRecordDecl();
else CRD = SE->getType()->getAsCXXRecordDecl();
if (CRD) {
std::string cname = CRD->getQualifiedNameAsString();
if (! support::isDataClass(cname) ) return;
}
if (clang::ento::ExplodedNode *errorNode = C.generateSink()) {
if (!BT) BT.reset(new clang::ento::BugType(this,"const_cast used on a pointer to a data class ", "ThreadSafety"));
clang::ento::BugReport *R = new clang::ento::BugReport(*BT,
"const_cast was used on a pointer to a data class ", errorNode);
R->addRange(CE->getSourceRange());
if ( ! m_exception.reportConstCast( *R, C ) )
return;
C.emitReport(R);
}
}
void ConstCastAwayChecker::checkPreStmt(const clang::ExplicitCastExpr *CE,
clang::ento::CheckerContext &C) const
{
const clang::Expr *E = CE->getSubExpr();
clang::ASTContext &Ctx = C.getASTContext();
clang::QualType OrigTy = Ctx.getCanonicalType(E->getType());
clang::QualType ToTy = Ctx.getCanonicalType(CE->getType());
if ( support::isConst( OrigTy ) && ! support::isConst(ToTy) ) {
if ( clang::ento::ExplodedNode *errorNode = C.generateSink()) {
if (!BT)
BT.reset(
new clang::ento::BugType("const cast away",
"ThreadSafety"));
clang::ento::BugReport *R = new clang::ento::BugReport(*BT,
"const qualifier was removed via a cast, this may result in thread-unsafe code.", errorNode);
R->addRange(CE->getSourceRange());
if ( ! m_exception.reportConstCastAway( *R, C ) )
return;
C.emitReport(R);
}
}
}