string NetworkDriverRewriteVisitor::GetSharedStructStr(CallExpr *callExpr)
{
string shared_struct_str = "";
Expr *callee = callExpr->getCallee();
if (!isa<ImplicitCastExpr>(callee))
return shared_struct_str;
ImplicitCastExpr *calleeImplExpr = cast<ImplicitCastExpr>(callee);
if (!isa<DeclRefExpr>(calleeImplExpr->getSubExpr()))
return shared_struct_str;
DeclRefExpr *calleeDeclExpr = cast<DeclRefExpr>(calleeImplExpr->getSubExpr());
Stmt *body = callExpr->getCalleeDecl()->getBody();
if (calleeDeclExpr->getNameInfo().getAsString() != "alloc_etherdev")
shared_struct_str = GetSharedStructStrInFunctionBody(body, false);
if (calleeDeclExpr->getNameInfo().getAsString() != "alloc_etherdev")
return shared_struct_str;
for (auto i = callExpr->arg_begin(), e = callExpr->arg_end(); i != e; ++i)
{
if (!isa<ImplicitCastExpr>(*i))
continue;
ImplicitCastExpr *argImplExpr = cast<ImplicitCastExpr>(*i);
if (!isa<UnaryExprOrTypeTraitExpr>(argImplExpr->getSubExpr()))
continue;
UnaryExprOrTypeTraitExpr *argExpr = cast<UnaryExprOrTypeTraitExpr>(argImplExpr->getSubExpr());
ParenExpr *parenExpr = cast<ParenExpr>(argExpr->getArgumentExpr());
UnaryOperator *uop = cast<UnaryOperator>(parenExpr->getSubExpr());
ImplicitCastExpr *implExpr = cast<ImplicitCastExpr>(uop->getSubExpr());
DeclRefExpr *declExpr = cast<DeclRefExpr>(implExpr->getSubExpr());
ValueDecl *valueDecl = cast<ValueDecl>(declExpr->getDecl());
shared_struct_str = valueDecl->getType().getAsString(Context->getPrintingPolicy());
break;
}
return shared_struct_str;
}
bool VisitUnaryOperator(UnaryOperator *unaryOperator)
{
Expr *subExpr = unaryOperator->getSubExpr();
while (subExpr && isa<ParenExpr>(subExpr))
{
ParenExpr *parenExpr = dyn_cast<ParenExpr>(subExpr);
subExpr = parenExpr->getSubExpr();
}
if (subExpr && isa<UnaryOperator>(subExpr))
{
UnaryOperator *subUnaryOperator = dyn_cast<UnaryOperator>(subExpr);
if (bothUOLNot(unaryOperator, subUnaryOperator) ||
bothUONot(unaryOperator, subUnaryOperator))
{
addViolation(unaryOperator, this);
}
}
return true;
}
