compilerplugins/clang/test/unnecessarycatchthrow.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #include <iostream>
  11 #include <fstream>
  12
  13 void foo();
  14
  15 int main()
  16 {
  17     try {
  18         foo();
  19     } catch(int const &) {  // expected-error {{unnecessary catch and throw [loplugin:unnecessarycatchthrow]}}
  20         throw;
  21     }
  22     try {
  23         foo();
  24     } catch(int const & ex) {  // expected-error {{unnecessary catch and throw [loplugin:unnecessarycatchthrow]}}
  25         throw ex;
  26     }
  27     try {
  28         foo();
  29     } catch(int const &) {
  30         std::cout << "test";
  31         throw;
  32     }
  33
  34 }
  35
  36 void test1()
  37 {
  38     // cannot remove catch/throw where the throw is of a non-final class
  39     struct B {};
  40     struct D: B {};
  41     try {
  42         throw D();
  43     } catch (B & b) {
  44         throw b; // must not be removed
  45     }
  46 };
  47
  48 void test2()
  49 {
  50     struct F final {};
  51     try {
  52         throw F();
  53     } catch (F const & f) { // expected-error {{unnecessary catch and throw [loplugin:unnecessarycatchthrow]}}
  54         throw f;
  55     }
  56 };
  57
  58 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */