compilerplugins/clang/test/noexceptmove.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 #include "config_clang.h"
  10
  11 // clang before V9 does not have API to report exception spec type
  12 #if CLANG_VERSION >= 90000
  13
  14 namespace test1
  15 {
  16 class Mapping
  17 {
  18     char* m_pMapping;
  19
  20     // expected-error@+1 {{move constructor can be noexcept [loplugin:noexceptmove]}}
  21     Mapping(Mapping&& other)
  22         : m_pMapping(other.m_pMapping)
  23     {
  24         other.m_pMapping = nullptr;
  25     }
  26
  27     // expected-error@+1 {{move operator= can be noexcept [loplugin:noexceptmove]}}
  28     Mapping& operator=(Mapping&& other)
  29     {
  30         m_pMapping = other.m_pMapping;
  31         other.m_pMapping = nullptr;
  32         return *this;
  33     }
  34 };
  35 };
  36
  37 // No warning expected, because calling throwing function.
  38 namespace test2
  39 {
  40 void foo() noexcept(false);
  41
  42 class Bar
  43 {
  44     Bar(Bar&&) { foo(); }
  45 };
  46 };
  47
  48 // no warning expected, because calling throwing constructor
  49 namespace test3
  50 {
  51 struct Foo
  52 {
  53     Foo() noexcept(false);
  54 };
  55 class Bar
  56 {
  57     Bar(Bar&&) { Foo aFoo; }
  58 };
  59
  60 class Bar2
  61 {
  62     Foo m_foo;
  63
  64     Bar2(Bar2&&) {}
  65 };
  66 };
  67
  68 // No warning expected, because calling throwing destructor.
  69 namespace test4
  70 {
  71 struct Foo
  72 {
  73     ~Foo() noexcept(false);
  74 };
  75
  76 class Bar
  77 {
  78     Bar(Bar&&) { Foo aFoo; }
  79 };
  80 };
  81
  82 // Check for calls to defaulted constructors.
  83 namespace test5
  84 {
  85 struct Foo
  86 {
  87     Foo() = default; // non-throwing
  88 };
  89 class Bar
  90 {
  91     Bar(Bar&&) // expected-error {{move constructor can be noexcept [loplugin:noexceptmove]}}
  92     {
  93         Foo aFoo;
  94         (void)aFoo;
  95     }
  96 };
  97 };
  98
  99 #else
 100 // expected-no-diagnostics
 101 #endif // CLANG_VERSION
 102 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */