File indexing completed on 2024-05-12 05:41:04

 /*
     SPDX-FileCopyrightText: 2021 Klarälvdalens Datakonsult AB a KDAB Group company info@kdab.com
     SPDX-FileContributor: Waqar Ahmed <waqar.ahmed@kdab.com>
 
     SPDX-FileCopyrightText: 2021 Waqar Ahmed <waqar.17a@gmail.com>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "use-arrow-operator-instead-of-data.h"
 
 #include "HierarchyUtils.h"
 #include <clang/AST/ExprCXX.h>
 
 using namespace clang;
 
 UseArrowOperatorInsteadOfData::UseArrowOperatorInsteadOfData(const std::string &name, ClazyContext *context)
     : CheckBase(name, context)
 {
 }
 
 void UseArrowOperatorInsteadOfData::VisitStmt(clang::Stmt *stmt)
 {
     auto *ce = dyn_cast<CXXMemberCallExpr>(stmt);
     if (!ce) {
         return;
     }
 
     auto vec = Utils::callListForChain(ce);
     if (vec.size() < 2) {
         return;
     }
 
     CallExpr *callExpr = vec.at(vec.size() - 1);
 
     FunctionDecl *funcDecl = callExpr->getDirectCallee();
     if (!funcDecl) {
         return;
     }
     const std::string func = clazy::qualifiedMethodName(funcDecl);
 
     static const std::vector<std::string> whiteList{"QScopedPointer::data", "QPointer::data", "QSharedPointer::data", "QSharedDataPointer::data"};
 
     bool accepted = clazy::any_of(whiteList, [func](const std::string &f) {
         return f == func;
     });
     if (!accepted) {
         return;
     }
 
     std::vector<FixItHint> fixits;
 
     constexpr int MinPossibleColonPos = sizeof("QPointer") - 1;
     const std::string ClassName = func.substr(0, func.find(':', MinPossibleColonPos));
 
     auto begin = callExpr->getExprLoc();
     const auto end = callExpr->getEndLoc();
 
     // find '.' in ptr.data()
     int dotOffset = 0;
     const char *d = m_sm.getCharacterData(begin);
     while (*d != '.') {
         dotOffset--;
         d--;
     }
     begin = begin.getLocWithOffset(dotOffset);
 
     const SourceRange sourceRange{begin, end};
     FixItHint removal = FixItHint::CreateRemoval(sourceRange);
     fixits.push_back(std::move(removal));
 
     emitWarning(callExpr->getBeginLoc(), "Use operator -> directly instead of " + ClassName + "::data()->", fixits);
 }