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 CopyConstructions;
  16   static int CopyAssignments;
  17   static int MoveConstructions;
  18   static int MoveAssignments;
  19   static int Destructions;
  20   int val;
  21
  22   CountCopyAndMove() = default;
  23   explicit CountCopyAndMove(int val) : val(val) {}
  24   CountCopyAndMove(const CountCopyAndMove &other) : val(other.val) {
  25     ++CopyConstructions;
  26   }
  27   CountCopyAndMove &operator=(const CountCopyAndMove &other) {
  28     val = other.val;
  29     ++CopyAssignments;
  30     return *this;
  31   }
  32   CountCopyAndMove(CountCopyAndMove &&other) : val(other.val) {
  33     ++MoveConstructions;
  34   }
  35   CountCopyAndMove &operator=(CountCopyAndMove &&other) {
  36     val = other.val;
  37     ++MoveAssignments;
  38     return *this;
  39   }
  40   ~CountCopyAndMove() { ++Destructions; }
  41
  42   static void ResetCounts() {
  43     CopyConstructions = 0;
  44     CopyAssignments = 0;
  45     MoveConstructions = 0;
  46     MoveAssignments = 0;
  47     Destructions = 0;
  48   }
  49
  50   static int TotalCopies() { return CopyConstructions + CopyAssignments; }
  51
  52   static int TotalMoves() { return MoveConstructions + MoveAssignments; }
  53 };
  54
  55 } // end namespace llvm
  56
  57 #endif // LLVM_UNITTESTS_ADT_COUNTCOPYANDMOVE_H