llvm/unittests/ADT/CountCopyAndMove.h

   1 //===- llvm/unittest/ADT/CountCopyAndMove.h - Optional unit tests ---------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef LLVM_UNITTESTS_ADT_COUNTCOPYANDMOVE_H
  10 #define LLVM_UNITTESTS_ADT_COUNTCOPYANDMOVE_H
  11
  12 namespace llvm {
  13
  14 struct CountCopyAndMove {
  15   static int DefaultConstructions;
  16   static int ValueConstructions;
  17   static int CopyConstructions;
  18   static int CopyAssignments;
  19   static int MoveConstructions;
  20   static int MoveAssignments;
  21   static int Destructions;
  22   int val;
  23
  24   CountCopyAndMove() { ++DefaultConstructions; }
  25   explicit CountCopyAndMove(int val) : val(val) { ++ValueConstructions; }
  26   CountCopyAndMove(const CountCopyAndMove &other) : val(other.val) {
  27     ++CopyConstructions;
  28   }
  29   CountCopyAndMove &operator=(const CountCopyAndMove &other) {
  30     val = other.val;
  31     ++CopyAssignments;
  32     return *this;
  33   }
  34   CountCopyAndMove(CountCopyAndMove &&other) : val(other.val) {
  35     ++MoveConstructions;
  36   }
  37   CountCopyAndMove &operator=(CountCopyAndMove &&other) {
  38     val = other.val;
  39     ++MoveAssignments;
  40     return *this;
  41   }
  42   ~CountCopyAndMove() { ++Destructions; }
  43
  44   static void ResetCounts() {
  45     DefaultConstructions = 0;
  46     ValueConstructions = 0;
  47     CopyConstructions = 0;
  48     CopyAssignments = 0;
  49     MoveConstructions = 0;
  50     MoveAssignments = 0;
  51     Destructions = 0;
  52   }
  53
  54   static int TotalConstructions() {
  55     return DefaultConstructions + ValueConstructions + MoveConstructions +
  56            CopyConstructions;
  57   }
  58
  59   static int TotalCopies() { return CopyConstructions + CopyAssignments; }
  60
  61   static int TotalMoves() { return MoveConstructions + MoveAssignments; }
  62 };
  63
  64 } // end namespace llvm
  65
  66 #endif // LLVM_UNITTESTS_ADT_COUNTCOPYANDMOVE_H