NamedDecl* RedundantLocalVariableRule::extractFromReturnStmt(Stmt *stmt) {
ReturnStmt *returnStmt = dyn_cast<ReturnStmt>(stmt);
if (returnStmt) {
Expr *returnValue = returnStmt->getRetValue();
if (returnValue) {
ImplicitCastExpr *implicitCastExpr = dyn_cast<ImplicitCastExpr>(returnValue);
if (implicitCastExpr) {
DeclRefExpr *returnExpr = dyn_cast<DeclRefExpr>(implicitCastExpr->getSubExpr());
if (returnExpr) {
return returnExpr->getFoundDecl();
}
}
}
}
return NULL;
}
bool VisitBinaryOperator(BinaryOperator *binaryOperator)
{
Expr *leftExpr = binaryOperator->getLHS();
if (binaryOperator->getOpcode() == BO_Assign && leftExpr && isa<DeclRefExpr>(leftExpr))
{
DeclRefExpr *declRefExpr = dyn_cast<DeclRefExpr>(leftExpr);
for (const auto& name : _names)
{
if (declRefExpr->getFoundDecl()->getNameAsString() == name)
{
_binaryOperators.push_back(binaryOperator);
break;
}
}
}
return true;
}