Method copyconstructors

lib/checkclass.cpp:457–602

}

void CheckClassImpl::copyconstructors()
{
    if (!mSettings.severity.isEnabled(Severity::warning))
        return;

    logChecker("CheckClass::checkCopyConstructors"); // warning

    for (const Scope * scope : mSymbolDatabase->classAndStructScopes) {
        std::map<int, const Token*> allocatedVars;
        std::map<int, const Token*> deallocatedVars;

        for (const Function &func : scope->functionList) {
            if (func.type == FunctionType::eConstructor && func.functionScope) {
                // Allocations in constructors
                const Token* tok = func.token->linkAt(1);
                for (const Token* const end = func.functionScope->bodyStart; tok != end; tok = tok->next()) {
                    if (Token::Match(tok, "%var% ( new") ||
                        (Token::Match(tok, "%var% ( %name% (") && mSettings.library.getAllocFuncInfo(tok->tokAt(2)))) {
                        const Variable* var = tok->variable();
                        if (var && var->isPointer() && var->scope() == scope)
                            allocatedVars[tok->varId()] = tok;
                    }
                }
                for (const Token* const end = func.functionScope->bodyEnd; tok != end; tok = tok->next()) {
                    if (Token::Match(tok, "%var% = new") ||
                        (Token::Match(tok, "%var% = %name% (") && mSettings.library.getAllocFuncInfo(tok->tokAt(2)))) {
                        const Variable* var = tok->variable();
                        if (var && var->isPointer() && var->scope() == scope && !var->isStatic())
                            allocatedVars[tok->varId()] = tok;
                    }
                }
            } else if (func.type == FunctionType::eDestructor && func.functionScope) {
                // Deallocations in destructors
                const Token* tok = func.functionScope->bodyStart;
                for (const Token* const end = func.functionScope->bodyEnd; tok != end; tok = tok->next()) {
                    if (Token::Match(tok, "delete %var%") ||
                        (Token::Match(tok, "%name% ( %var%") && mSettings.library.getDeallocFuncInfo(tok))) {
                        const Token *vartok = tok->str() == "delete" ? tok->next() : tok->tokAt(2);
                        const Variable* var = vartok->variable();
                        if (var && var->isPointer() && var->scope() == scope && !var->isStatic())
                            deallocatedVars[vartok->varId()] = vartok;
                    }
                }
            }
        }

        const bool hasAllocatedVars = !allocatedVars.empty();
        const bool hasDeallocatedVars = !deallocatedVars.empty();

        if (hasAllocatedVars || hasDeallocatedVars) {
            const Function *funcCopyCtor = nullptr;
            const Function *funcOperatorEq = nullptr;
            const Function *funcDestructor = nullptr;
            for (const Function &func : scope->functionList) {
                if (func.type == FunctionType::eCopyConstructor)
                    funcCopyCtor = &func;
                else if (func.type == FunctionType::eOperatorEqual)
                    funcOperatorEq = &func;