compilerplugins/clang/test/sequentialassign.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 <rtl/ustring.hxx>
  11
  12 #pragma clang diagnostic ignored "-Wunknown-warning-option" // for Clang < 13
  13 #pragma clang diagnostic ignored "-Wunused-but-set-variable"
  14
  15 namespace test1
  16 {
  17 void f(OUString s1)
  18 {
  19     OUString s2 = s1;
  20     // expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:sequentialassign]}}
  21     s2 = s2.getToken(0, '(');
  22 }
  23 }
  24
  25 namespace test2
  26 {
  27 OUString s2;
  28 void f(OUString s1)
  29 {
  30     s2 = s1;
  31     // expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:sequentialassign]}}
  32     s2 = s2.getToken(0, '(');
  33 }
  34 }
  35
  36 namespace test3
  37 {
  38 struct VolumeInfo
  39 {
  40     OUString getFileSystemName();
  41 };
  42 OUString aNullURL("");
  43 void f(VolumeInfo _aVolumeInfo)
  44 {
  45     OUString aFileSysName(aNullURL);
  46     // expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:sequentialassign]}}
  47     aFileSysName = _aVolumeInfo.getFileSystemName();
  48 }
  49 }
  50
  51 namespace test4
  52 {
  53 struct B3DVector
  54 {
  55     B3DVector getPerpendicular();
  56 };
  57 void f(B3DVector aNewVPN)
  58 {
  59     B3DVector aNewToTheRight = aNewVPN;
  60     // expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:sequentialassign]}}
  61     aNewToTheRight = aNewToTheRight.getPerpendicular();
  62 }
  63 }
  64
  65 namespace test5
  66 {
  67 void f(OUString s, int x)
  68 {
  69     int nPos = x;
  70     // expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:sequentialassign]}}
  71     nPos = s.indexOf("x", nPos);
  72 }
  73 }
  74
  75 namespace test6
  76 {
  77 void f()
  78 {
  79     OUString s2("xxxx");
  80     s2 = s2.getToken(0, '('); // no warning expected
  81 }
  82 }
  83
  84 namespace test7
  85 {
  86 class Class1
  87 {
  88     OUString m_field1;
  89     void foo(Class1& rOther)
  90     {
  91         OUString s = rOther.m_field1;
  92         // expected-error@+1 {{simplify by merging with the preceding assignment [loplugin:sequentialassign]}}
  93         s = s.copy(1, 2);
  94     }
  95 };
  96 }
  97
  98 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */