File indexing completed on 2024-11-24 05:05:11

 /*
     SPDX-FileCopyrightText: 2020 Sergio Martins <smartins@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "qstring-comparison-to-implicit-char.h"
 #include "HierarchyUtils.h"
 #include "QtUtils.h"
 #include "TypeUtils.h"
 #include "Utils.h"
 
 #include <clang/AST/AST.h>
 
 using namespace clang;
 
 QStringComparisonToImplicitChar::QStringComparisonToImplicitChar(const std::string &name, ClazyContext *context)
     : CheckBase(name, context)
 {
 }
 
 void QStringComparisonToImplicitChar::VisitStmt(clang::Stmt *stmt)
 {
     auto *callExpr = dyn_cast<CXXOperatorCallExpr>(stmt);
     if (!callExpr || !callExpr->getCalleeDecl() || callExpr->getNumArgs() != 2) {
         return;
     }
 
     Expr *arg1 = callExpr->getArg(1);
     auto *il = clazy::getFirstChildOfType2<IntegerLiteral>(arg1);
     if (!il) {
         return;
     }
 
     auto *functionDecl = dyn_cast<FunctionDecl>(callExpr->getCalleeDecl());
     if (!functionDecl || functionDecl->getQualifiedNameAsString() != "operator==") {
         return;
     }
 
     ParmVarDecl *parm1 = functionDecl->getParamDecl(0);
     if (parm1->getType().getAsString(lo()) != "const QString &") {
         return;
     }
 
     ParmVarDecl *parm2 = functionDecl->getParamDecl(1);
     if (parm2->getType().getAsString(lo()) != "QChar") {
         return;
     }
 
     emitWarning(stmt, "QString being compared to implicit QChar");
 }