compilerplugins/clang/test/stringliteralvar.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 <sal/config.h>
  11
  12 #include <iterator>
  13 #include <vector>
  14
  15 #include <rtl/ustring.hxx>
  16
  17 // expected-error-re@+1 {{change type of variable 'literal1' from constant character array ('const char{{ ?}}[4]') to OStringLiteral [loplugin:stringliteralvar]}}
  18 char const literal1[] = "foo";
  19 OString f1()
  20 {
  21     // expected-note-re@+1 {{first passed into a '{{(rtl::)?}}OString' constructor here [loplugin:stringliteralvar]}}
  22     return literal1;
  23 }
  24
  25 void f(OUString const&);
  26 void f2()
  27 {
  28     // expected-error-re@+1 {{change type of variable 'literal' from constant character array ('const char{{ ?}}[4]') to OUStringLiteral, and make it static [loplugin:stringliteralvar]}}
  29     char const literal[] = "foo";
  30     // expected-note-re@+1 {{first passed into a '{{(rtl::)?}}OUString' constructor here [loplugin:stringliteralvar]}}
  31     f(literal);
  32 }
  33
  34 struct S3
  35 {
  36     // expected-error-re@+1 {{change type of variable 'literal' from constant character array ('const char16_t{{ ?}}[4]') to OUStringLiteral [loplugin:stringliteralvar]}}
  37     static constexpr char16_t literal[] = u"foo";
  38 };
  39 void f3()
  40 {
  41     // expected-note-re@+1 {{first passed into a '{{(rtl::)?}}OUString' constructor here [loplugin:stringliteralvar]}}
  42     f(S3::literal);
  43 }
  44
  45 std::vector<OUString> f4()
  46 {
  47     // expected-error-re@+1 {{change type of variable 'literal' from constant character array ('const char16_t{{ ?}}[4]') to OUStringLiteral [loplugin:stringliteralvar]}}
  48     static constexpr char16_t literal[] = u"foo";
  49     // expected-note@+1 {{first passed into a 'rtl::OUString' constructor here [loplugin:stringliteralvar]}}
  50     return { literal };
  51 }
  52
  53 void f5()
  54 {
  55     // expected-error-re@+1 {{variable 'literal' of type 'const {{(rtl::)?}}OUStringLiteral<4>'{{( \(aka 'const rtl::OUStringLiteral<4>'\))?}} with automatic storage duration most likely needs to be static [loplugin:stringliteralvar]}}
  56     OUStringLiteral const literal = u"foo";
  57     // expected-note-re@+1 {{first converted to '{{(rtl::)?}}OUString' here [loplugin:stringliteralvar]}}
  58     f(literal);
  59 }
  60
  61 void f6()
  62 {
  63     // expected-error-re@+1 {{variable 'literal' of type 'const {{(rtl::)?}}OUStringLiteral<4>'{{( \(aka 'const rtl::OUStringLiteral<4>'\))?}} with automatic storage duration most likely needs to be static [loplugin:stringliteralvar]}}
  64     constexpr OUStringLiteral literal = u"foo";
  65     // expected-note-re@+1 {{first converted to '{{(rtl::)?}}OUString' here [loplugin:stringliteralvar]}}
  66     f(literal);
  67 }
  68
  69 void f7()
  70 {
  71     static constexpr OUStringLiteral const literal = u"foo";
  72     f(literal);
  73 }
  74
  75 void f8()
  76 {
  77     static constexpr OUStringLiteral const literal = u"foo";
  78     // expected-error-re@+1 {{variable 'literal' of type 'const {{(rtl::)?}}OUStringLiteral<4>'{{( \(aka 'const rtl::OUStringLiteral<4>'\))?}} suspiciously used in a sizeof expression [loplugin:stringliteralvar]}}
  79     (void)sizeof literal;
  80 }
  81
  82 void f9()
  83 {
  84     // expected-error-re@+1 {{change type of variable 'literal' from constant character array ('const sal_Unicode{{ ?}}[3]'{{( \(aka 'const char16_t\[3\]'\))?}}) to OUStringLiteral [loplugin:stringliteralvar]}}
  85     static sal_Unicode const literal[] = { 'f', 'o', 'o' };
  86     // expected-note-re@+1 {{first passed into a '{{(rtl::)?}}OUString' constructor here [loplugin:stringliteralvar]}}
  87     f(OUString(literal, std::size(literal)));
  88 }
  89
  90 void f10()
  91 {
  92     // expected-error-re@+1 {{change type of variable 'literal' from constant character array ('const sal_Unicode{{ ?}}[3]'{{( \(aka 'const char16_t\[3\]'\))?}}) to OUStringLiteral [loplugin:stringliteralvar]}}
  93     static sal_Unicode const literal[] = { 'f', 'o', 'o' };
  94     // expected-note-re@+1 {{first passed into a '{{(rtl::)?}}OUString' constructor here [loplugin:stringliteralvar]}}
  95     f(OUString(literal, 3));
  96 }
  97
  98 void f11(int nStreamType)
  99 {
 100     // expected-error-re@+1 {{change type of variable 'sDocumentType' from constant character array ('const char{{ ?}}[4]') to OUStringLiteral, and make it static [loplugin:stringliteralvar]}}
 101     const char sDocumentType[] = "foo";
 102     OUString sStreamType;
 103     switch (nStreamType)
 104     {
 105         case 1:
 106             // expected-note@+1 {{first assigned here [loplugin:stringliteralvar]}}
 107             sStreamType = sDocumentType;
 108             break;
 109     }
 110     (void)sStreamType;
 111 }
 112
 113 extern sal_Unicode const extarr[1];
 114
 115 sal_Unicode init();
 116
 117 void f12()
 118 {
 119     // Suppress warnings if the array contains a malformed sequence of UTF-16 code units...:
 120     static sal_Unicode const arr1[] = { 0xD800 };
 121     f(OUString(arr1, 1));
 122     // ...Or potentially contains a malformed sequence of UTF-16 code units...:
 123     f(OUString(extarr, 1));
 124     sal_Unicode const arr2[] = { init() };
 125     f(OUString(arr2, 1));
 126     // ...But generate a warning if the array contains a well-formed sequence of UTF-16 code units
 127     // containing surrogates:
 128     // expected-error-re@+1 {{change type of variable 'arr3' from constant character array ('const sal_Unicode{{ ?}}[2]'{{( \(aka 'const char16_t\[2\]'\))?}}) to OUStringLiteral [loplugin:stringliteralvar]}}
 129     static sal_Unicode const arr3[] = { 0xD800, 0xDC00 };
 130     // expected-note-re@+1 {{first passed into a '{{(rtl::)?}}OUString' constructor here [loplugin:stringliteralvar]}}
 131     f(OUString(arr3, 2));
 132 }
 133
 134 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */