compilerplugins/clang/test/stringviewparam.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 #undef NDEBUG
  11
  12 #include "sal/config.h"
  13
  14 #include <string_view>
  15
  16 #include "rtl/string.hxx"
  17 #include "rtl/ustring.hxx"
  18 #include "rtl/ustrbuf.hxx"
  19 #include "sal/types.h"
  20
  21 void f1a(std::string_view);
  22 // expected-error-re@+1 {{replace function parameter of type 'const {{(rtl::)?}}OString &' with 'std::string_view' [loplugin:stringviewparam]}}
  23 char f1b(OString const& s)
  24 {
  25     f1a(s);
  26     OString rest;
  27     if (s.isEmpty() || s.startsWith("foo", &rest) || s.endsWith("foo"))
  28     {
  29         f1a(std::string_view(s));
  30     }
  31     return s[0];
  32 }
  33
  34 void f2a(std::u16string_view);
  35 // expected-error-re@+1 {{replace function parameter of type 'const {{(rtl::)?}}OUString &' with 'std::u16string_view' [loplugin:stringviewparam]}}
  36 sal_Unicode f2b(OUString const& s)
  37 {
  38     f2a(s);
  39     OUString rest;
  40     if (s.isEmpty() || s.startsWith("foo", &rest) || s.endsWith("foo"))
  41     {
  42         f2a(std::u16string_view(s));
  43     }
  44     return s[0];
  45 }
  46
  47 void f3a(OUString const&) {}
  48 using F3 = void(OUString const&);
  49 F3* f3b() { return f3a; }
  50
  51 SAL_DLLPUBLIC_EXPORT void f4(OUString const&) {}
  52
  53 template <typename T> void f5(T const&);
  54 template <> void f5<OUString>(OUString const&) {}
  55
  56 void f6([[maybe_unused]] OUString const&) {}
  57
  58 bool f7(
  59     // expected-error-re@+1 {{replace function parameter of type 'const {{(rtl::)?}}OUString &' with 'std::u16string_view' [loplugin:stringviewparam]}}
  60     const OUString& p1,
  61     // expected-error-re@+1 {{replace function parameter of type 'const {{(rtl::)?}}OUString &' with 'std::u16string_view' [loplugin:stringviewparam]}}
  62     const OUString& p2)
  63 {
  64     return p1 == p2;
  65 }
  66 // expected-error-re@+1 {{replace function parameter of type 'const {{(rtl::)?}}OUString &' with 'std::u16string_view' [loplugin:stringviewparam]}}
  67 bool f8(const OUString& p1, std::u16string_view p2) { return p1 == p2; }
  68
  69 struct Converter
  70 {
  71     // expected-error-re@+1 {{replace function parameter of type 'const {{(rtl::)?}}OUString &' with 'std::u16string_view' [loplugin:stringviewparam]}}
  72     static bool convertBool(bool& rBool, const OUString& rString)
  73     {
  74         rBool = rString == "true";
  75         return rBool || (rString == "false");
  76     }
  77 };
  78
  79 void f9(std::u16string_view);
  80 void f9(OUString const& s) { return f9(std::u16string_view(s)); }
  81
  82 struct S10
  83 {
  84     S10(std::u16string_view);
  85     S10(OUString const& s)
  86         : S10(std::u16string_view(s))
  87     {
  88     }
  89 };
  90
  91 // expected-error-re@+1 {{replace function parameter of type 'const {{(rtl::)?}}OUString &' with 'std::u16string_view' [loplugin:stringviewparam]}}
  92 void f11(const OUString& f11rString)
  93 {
  94     OUStringBuffer buf;
  95     buf.append(f11rString);
  96 }
  97
  98 // expected-error-re@+1 {{replace function parameter of type 'const {{(rtl::)?}}OUString &' with 'std::u16string_view' [loplugin:stringviewparam]}}
  99 sal_uInt32 decimalStringToNumber(OUString const& str, sal_Int32 nStart, sal_Int32 nLength)
 100 {
 101     sal_uInt32 result = 0;
 102     for (sal_Int32 i = nStart; i < nStart + nLength;)
 103     {
 104         sal_uInt32 c = str.iterateCodePoints(&i);
 105         sal_uInt32 value = 0;
 106         if (c <= 0x0039)
 107             value = c - 0x0030;
 108         result = result * 10 + value;
 109     }
 110     return result;
 111 }
 112
 113 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */