Remove unused either class
This commit is contained in:
Sebastian Messmer
parent
d13f1b7729
commit
006d8b541a
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@ -1,218 +0,0 @@
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#pragma once
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#ifndef MESSMER_CPPUTILS_EITHER_H
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#define MESSMER_CPPUTILS_EITHER_H
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#include <boost/optional.hpp>
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#include <iostream>
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namespace cpputils {
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template<class Left, class Right>
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class either final {
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public:
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//TODO Try allowing construction with any type that std::is_convertible to Left or Right.
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either(const Left &left): _side(Side::left) {
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_construct_left(left);
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}
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either(Left &&left): _side(Side::left) {
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_construct_left(std::move(left));
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}
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either(const Right &right): _side(Side::right) {
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_construct_right(right);
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}
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either(Right &&right): _side(Side::right) {
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_construct_right(std::move(right));
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}
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//TODO Try allowing copy-construction when Left/Right types are std::is_convertible
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either(const either<Left, Right> &rhs): _side(rhs._side) {
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if(_side == Side::left) {
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_construct_left(rhs._left);
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} else {
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_construct_right(rhs._right);
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}
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}
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either(either<Left, Right> &&rhs): _side(rhs._side) {
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if(_side == Side::left) {
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_construct_left(std::move(rhs._left));
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} else {
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_construct_right(std::move(rhs._right));
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}
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}
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~either() {
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_destruct();
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}
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//TODO Try allowing copy-assignment when Left/Right types are std::is_convertible
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either<Left, Right> &operator=(const either<Left, Right> &rhs) {
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_destruct();
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_side = rhs._side;
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if (_side == Side::left) {
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_construct_left(rhs._left);
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} else {
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_construct_right(rhs._right);
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}
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return *this;
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}
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either<Left, Right> &operator=(either<Left, Right> &&rhs) {
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_destruct();
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_side = rhs._side;
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if (_side == Side::left) {
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_construct_left(std::move(rhs._left));
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} else {
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_construct_right(std::move(rhs._right));
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}
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return *this;
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}
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//TODO fold, map_left, map_right, left_or_else(val), right_or_else(val), left_or_else(func), right_or_else(func)
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bool is_left() const {
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return _side == Side::left;
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}
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bool is_right() const {
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return _side == Side::right;
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}
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const Left &left() const& {
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return _left;
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}
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Left &left() & {
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return const_cast<Left&>(const_cast<const either<Left, Right>*>(this)->left());
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}
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Left &&left() && {
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return std::move(left());
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}
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const Right &right() const& {
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return _right;
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}
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Right &right() & {
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return const_cast<Right&>(const_cast<const either<Left, Right>*>(this)->right());
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}
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Right &&right() && {
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return std::move(right());
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}
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boost::optional<const Left&> left_opt() const& {
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if (_side == Side::left) {
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return _left;
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} else {
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return boost::none;
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}
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}
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boost::optional<Left&> left_opt() & {
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if (_side == Side::left) {
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return _left;
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} else {
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return boost::none;
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}
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}
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boost::optional<Left> left_opt() && {
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if (_side == Side::left) {
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return std::move(_left);
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} else {
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return boost::none;
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}
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}
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boost::optional<const Right&> right_opt() const& {
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if (_side == Side::right) {
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return _right;
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} else {
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return boost::none;
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}
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}
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boost::optional<Right&> right_opt() & {
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if (_side == Side::right) {
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return _right;
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} else {
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return boost::none;
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}
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}
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boost::optional<Right> right_opt() && {
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if (_side == Side::right) {
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return std::move(_right);
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} else {
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return boost::none;
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}
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}
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private:
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union {
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Left _left;
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Right _right;
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};
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enum class Side : unsigned char {left, right} _side;
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either(Side side): _side(side) {}
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template<typename... Args>
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void _construct_left(Args&&... args) {
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new(&_left)Left(std::forward<Args>(args)...);
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}
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template<typename... Args>
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void _construct_right(Args&&... args) {
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new(&_right)Right(std::forward<Args>(args)...);
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}
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void _destruct() {
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if (_side == Side::left) {
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_left.~Left();
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} else {
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_right.~Right();
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}
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}
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template<typename Left_, typename Right_, typename... Args>
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friend either<Left_, Right_> make_left(Args&&... args);
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template<typename Left_, typename Right_, typename... Args>
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friend either<Left_, Right_> make_right(Args&&... args);
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};
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template<class Left, class Right>
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bool operator==(const either<Left, Right> &lhs, const either<Left, Right> &rhs) {
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if (lhs.is_left() != rhs.is_left()) {
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return false;
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}
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if (lhs.is_left()) {
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return lhs.left() == rhs.left();
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} else {
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return lhs.right() == rhs.right();
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}
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}
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template<class Left, class Right>
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bool operator!=(const either<Left, Right> &lhs, const either<Left, Right> &rhs) {
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return !operator==(lhs, rhs);
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}
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template<class Left, class Right>
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std::ostream &operator<<(std::ostream &stream, const either<Left, Right> &value) {
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if (value.is_left()) {
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stream << "Left(" << value.left() << ")";
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} else {
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stream << "Right(" << value.right() << ")";
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}
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return stream;
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}
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template<typename Left, typename Right, typename... Args>
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either<Left, Right> make_left(Args&&... args) {
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either<Left, Right> result(either<Left, Right>::Side::left);
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result._construct_left(std::forward<Args>(args)...);
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return result;
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}
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template<typename Left, typename Right, typename... Args>
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either<Left, Right> make_right(Args&&... args) {
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either<Left, Right> result(either<Left, Right>::Side::right);
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result._construct_right(std::forward<Args>(args)...);
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return result;
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}
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}
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#endif
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@ -1,3 +0,0 @@
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#include "cpp-utils/either.h"
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//Test that either can be included without needing additional dependencies
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@ -1,505 +0,0 @@
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#include <gtest/gtest.h>
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#include <gmock/gmock.h>
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#include <boost/optional/optional_io.hpp>
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#include "cpp-utils/either.h"
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#include "cpp-utils/macros.h"
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#include <sstream>
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//TODO Go through all test cases and think about whether it makes sense to add the same test case but with primitive types.
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using std::ostringstream;
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using std::string;
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using std::vector;
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using std::pair;
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using std::make_pair;
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using namespace cpputils;
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using ::testing::Test;
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class OnlyMoveable {
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public:
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OnlyMoveable(int value_): value(value_) {}
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OnlyMoveable(OnlyMoveable &&source): value(source.value) {source.value = -1;}
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bool operator==(const OnlyMoveable &rhs) const {
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return value == rhs.value;
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}
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int value;
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private:
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DISALLOW_COPY_AND_ASSIGN(OnlyMoveable);
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};
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template<typename T>
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struct StoreWith1ByteFlag {
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T val;
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char flag;
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};
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class EitherTest: public Test {
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public:
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template<class Left, class Right>
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void EXPECT_IS_LEFT(const either<Left,Right> &val) {
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EXPECT_TRUE(val.is_left());
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EXPECT_FALSE(val.is_right());
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}
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template<class Left, class Right>
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void EXPECT_IS_RIGHT(const either<Left,Right> &val) {
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EXPECT_FALSE(val.is_left());
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EXPECT_TRUE(val.is_right());
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}
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template<class Left, class Right, class Expected>
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void EXPECT_LEFT_IS(const Expected &expected, either<Left, Right> &value) {
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EXPECT_IS_LEFT(value);
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EXPECT_EQ(expected, value.left());
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EXPECT_EQ(expected, value.left_opt().get());
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EXPECT_EQ(boost::none, value.right_opt());
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const either<Left, Right> &const_value = value;
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EXPECT_EQ(expected, const_value.left());
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EXPECT_EQ(expected, const_value.left_opt().get());
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EXPECT_EQ(boost::none, const_value.right_opt());
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}
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template<class Left, class Right, class Expected>
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void EXPECT_RIGHT_IS(const Expected &expected, either<Left, Right> &value) {
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EXPECT_IS_RIGHT(value);
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EXPECT_EQ(expected, value.right());
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EXPECT_EQ(expected, value.right_opt().get());
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EXPECT_EQ(boost::none, value.left_opt());
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const either<Left, Right> &const_value = value;
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EXPECT_EQ(expected, const_value.right());
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EXPECT_EQ(expected, const_value.right_opt().get());
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EXPECT_EQ(boost::none, const_value.left_opt());
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}
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};
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template<typename Left, typename Right>
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void TestSpaceUsage() {
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EXPECT_EQ(std::max(sizeof(StoreWith1ByteFlag<Left>), sizeof(StoreWith1ByteFlag<Right>)), sizeof(either<Left, Right>));
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}
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TEST_F(EitherTest, SpaceUsage) {
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TestSpaceUsage<char, int>();
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TestSpaceUsage<int, short>();
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TestSpaceUsage<char, short>();
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TestSpaceUsage<int, string>();
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TestSpaceUsage<string, vector<string>>();
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}
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TEST_F(EitherTest, LeftCanBeConstructed) {
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either<int, string> val = 3;
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UNUSED(val);
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}
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TEST_F(EitherTest, RightCanBeConstructed) {
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either<int, string> val = string("string");
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UNUSED(val);
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}
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TEST_F(EitherTest, IsLeft) {
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either<int, string> val = 3;
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EXPECT_IS_LEFT(val);
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}
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TEST_F(EitherTest, IsRight) {
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either<int, string> val = string("string");
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EXPECT_IS_RIGHT(val);
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}
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TEST_F(EitherTest, LeftIsStored) {
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either<int, string> val = 3;
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EXPECT_LEFT_IS(3, val);
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}
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TEST_F(EitherTest, RightIsStored) {
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either<int, string> val = string("string");
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EXPECT_RIGHT_IS("string", val);
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}
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TEST_F(EitherTest, LeftCanBeMoveContructed) {
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either<OnlyMoveable, string> val = OnlyMoveable(1);
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UNUSED(val);
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}
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TEST_F(EitherTest, RightCanBeMoveContructed) {
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either<string, OnlyMoveable> val = OnlyMoveable(1);
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UNUSED(val);
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}
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TEST_F(EitherTest, IsLeftWhenMoveContructed) {
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either<OnlyMoveable, string> val = OnlyMoveable(1);
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EXPECT_IS_LEFT(val);
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}
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TEST_F(EitherTest, IsRightWhenMoveContructed) {
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either<string, OnlyMoveable> val = OnlyMoveable(1);
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EXPECT_IS_RIGHT(val);
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}
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TEST_F(EitherTest, LeftIsStoredWhenMoveContructed) {
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either<OnlyMoveable, string> val = OnlyMoveable(2);
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EXPECT_LEFT_IS(OnlyMoveable(2), val);
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}
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TEST_F(EitherTest, RightIsStoredWhenMoveContructed) {
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either<string, OnlyMoveable> val = OnlyMoveable(3);
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EXPECT_RIGHT_IS(OnlyMoveable(3), val);
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}
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TEST_F(EitherTest, LeftCanBeCopied) {
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either<string, int> val = string("string");
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either<string, int> val2 = val;
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EXPECT_LEFT_IS("string", val2);
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}
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TEST_F(EitherTest, CopyingLeftDoesntChangeSource) {
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either<string, int> val = string("string");
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either<string, int> val2 = val;
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EXPECT_LEFT_IS("string", val);
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}
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TEST_F(EitherTest, RightCanBeCopied) {
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either<int, string> val = string("string");
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either<int, string> val2 = val;
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EXPECT_RIGHT_IS("string", val2);
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}
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TEST_F(EitherTest, CopyingRightDoesntChangeSource) {
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either<int, string> val = string("string");
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either<int, string> val2 = val;
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EXPECT_RIGHT_IS("string", val);
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}
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TEST_F(EitherTest, LeftCanBeMoved) {
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either<OnlyMoveable, int> val = OnlyMoveable(5);
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either<OnlyMoveable, int> val2 = std::move(val);
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EXPECT_LEFT_IS(OnlyMoveable(5), val2);
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}
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TEST_F(EitherTest, RightCanBeMoved) {
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either<int, OnlyMoveable> val = OnlyMoveable(5);
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either<int, OnlyMoveable> val2 = std::move(val);
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EXPECT_RIGHT_IS(OnlyMoveable(5), val2);
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}
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TEST_F(EitherTest, LeftCanBeAssigned) {
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either<string, int> val = string("string");
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either<string, int> val2 = string("otherstring");
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val2 = val;
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EXPECT_LEFT_IS("string", val2);
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}
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TEST_F(EitherTest, RightCanBeAssigned) {
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either<int, string> val = string("string");
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either<int, string> val2 = string("otherstring");
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val2 = val;
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EXPECT_RIGHT_IS("string", val2);
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}
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TEST_F(EitherTest, LeftCanBeMoveAssigned) {
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either<OnlyMoveable, int> val = OnlyMoveable(3);
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either<OnlyMoveable, int> val2 = OnlyMoveable(4);
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val2 = std::move(val);
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EXPECT_LEFT_IS(OnlyMoveable(3), val2);
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}
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TEST_F(EitherTest, RightCanBeMoveAssigned) {
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either<int, OnlyMoveable> val = OnlyMoveable(3);
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either<int, OnlyMoveable> val2 = OnlyMoveable(4);
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val2 = std::move(val);
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EXPECT_RIGHT_IS(OnlyMoveable(3), val2);
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}
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TEST_F(EitherTest, LeftCanBeDirectlyAssigned) {
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either<string, int> val = string("string");
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val = string("otherstring");
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EXPECT_LEFT_IS("otherstring", val);
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}
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TEST_F(EitherTest, RightCanBeDirectlyAssigned) {
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either<int, string> val = string("string");
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val = string("otherstring");
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EXPECT_RIGHT_IS("otherstring", val);
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}
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TEST_F(EitherTest, LeftCanBeDirectlyMoveAssigned) {
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either<OnlyMoveable, int> val = OnlyMoveable(3);
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val = OnlyMoveable(5);
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EXPECT_LEFT_IS(OnlyMoveable(5), val);
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}
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TEST_F(EitherTest, RightCanBeDirectlyMoveAssigned) {
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either<int, OnlyMoveable> val = OnlyMoveable(3);
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val = OnlyMoveable(5);
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EXPECT_RIGHT_IS(OnlyMoveable(5), val);
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}
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TEST_F(EitherTest, ModifyLeft) {
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either<string, int> val = string("mystring1");
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val.left() = "mystring2";
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EXPECT_LEFT_IS("mystring2", val);
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}
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TEST_F(EitherTest, ModifyRight) {
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either<int, string> val = string("mystring1");
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val.right() = "mystring2";
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EXPECT_RIGHT_IS("mystring2", val);
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}
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TEST_F(EitherTest, ModifyLeftOpt) {
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either<string, int> val = string("mystring1");
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val.left_opt().get() = "mystring2";
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EXPECT_LEFT_IS("mystring2", val);
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}
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TEST_F(EitherTest, ModifyRightOpt) {
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either<int, string> val = string("mystring1");
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val.right_opt().get() = "mystring2";
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EXPECT_RIGHT_IS("mystring2", val);
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}
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TEST_F(EitherTest, LeftEquals) {
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either<string, int> val1 = string("mystring");
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either<string, int> val2 = string("mystring");
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EXPECT_TRUE(val1 == val2);
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EXPECT_TRUE(val2 == val1);
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EXPECT_FALSE(val1 != val2);
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EXPECT_FALSE(val2 != val1);
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}
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TEST_F(EitherTest, LeftNotEquals) {
|
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either<string, int> val1 = string("mystring");
|
||||
either<string, int> val2 = string("mystring2");
|
||||
EXPECT_TRUE(val1 != val2);
|
||||
EXPECT_TRUE(val2 != val1);
|
||||
EXPECT_FALSE(val1 == val2);
|
||||
EXPECT_FALSE(val2 == val1);
|
||||
}
|
||||
|
||||
TEST_F(EitherTest, RightEquals) {
|
||||
either<int, string> val1 = string("mystring");
|
||||
either<int, string> val2 = string("mystring");
|
||||
EXPECT_TRUE(val1 == val2);
|
||||
EXPECT_TRUE(val2 == val1);
|
||||
EXPECT_FALSE(val1 != val2);
|
||||
EXPECT_FALSE(val2 != val1);
|
||||
}
|
||||
|
||||
TEST_F(EitherTest, RightNotEquals) {
|
||||
either<int, string> val1 = string("mystring");
|
||||
either<int, string> val2 = string("mystring2");
|
||||
EXPECT_TRUE(val1 != val2);
|
||||
EXPECT_TRUE(val2 != val1);
|
||||
EXPECT_FALSE(val1 == val2);
|
||||
EXPECT_FALSE(val2 == val1);
|
||||
}
|
||||
|
||||
TEST_F(EitherTest, LeftNotEqualsRight) {
|
||||
either<string, int> val1 = string("mystring");
|
||||
either<string, int> val2 = 3;
|
||||
EXPECT_TRUE(val1 != val2);
|
||||
EXPECT_TRUE(val2 != val1);
|
||||
EXPECT_FALSE(val1 == val2);
|
||||
EXPECT_FALSE(val2 == val1);
|
||||
}
|
||||
|
||||
TEST_F(EitherTest, OutputLeft) {
|
||||
ostringstream str;
|
||||
str << either<string, int>("mystring");
|
||||
EXPECT_EQ("Left(mystring)", str.str());
|
||||
}
|
||||
|
||||
TEST_F(EitherTest, OutputRight) {
|
||||
ostringstream str;
|
||||
str << either<int, string>("mystring");
|
||||
EXPECT_EQ("Right(mystring)", str.str());
|
||||
}
|
||||
|
||||
TEST_F(EitherTest, MakeLeft) {
|
||||
either<string, int> var = make_left<string, int>("mystring");
|
||||
EXPECT_LEFT_IS("mystring", var);
|
||||
}
|
||||
|
||||
TEST_F(EitherTest, MakeLeft_OnlyMoveable) {
|
||||
either<OnlyMoveable, int> var = make_left<OnlyMoveable, int>(4);
|
||||
EXPECT_LEFT_IS(OnlyMoveable(4), var);
|
||||
}
|
||||
|
||||
TEST_F(EitherTest, MakeLeft_MultiParam) {
|
||||
either<pair<int, int>, int> var = make_left<pair<int, int>, int>(4, 5);
|
||||
EXPECT_LEFT_IS(make_pair(4,5), var);
|
||||
}
|
||||
|
||||
TEST_F(EitherTest, MakeRight) {
|
||||
either<int, string> var = make_right<int, string>("mystring");
|
||||
EXPECT_RIGHT_IS("mystring", var);
|
||||
}
|
||||
|
||||
TEST_F(EitherTest, MakeRight_OnlyMoveable) {
|
||||
either<int, OnlyMoveable> var = make_right<int, OnlyMoveable>(4);
|
||||
EXPECT_RIGHT_IS(OnlyMoveable(4), var);
|
||||
}
|
||||
|
||||
TEST_F(EitherTest, MakeRight_MultiParam) {
|
||||
either<int, pair<int, int>> var = make_right<int, pair<int, int>>(4, 5);
|
||||
EXPECT_RIGHT_IS(make_pair(4,5), var);
|
||||
}
|
||||
|
||||
TEST_F(EitherTest, LeftCanBeQueriedAsRvalue) {
|
||||
OnlyMoveable val = make_left<OnlyMoveable, int>(3).left();
|
||||
EXPECT_EQ(OnlyMoveable(3), val);
|
||||
}
|
||||
|
||||
TEST_F(EitherTest, RightCanBeQueriedAsRvalue) {
|
||||
OnlyMoveable val = make_right<int, OnlyMoveable>(3).right();
|
||||
EXPECT_EQ(OnlyMoveable(3), val);
|
||||
}
|
||||
|
||||
TEST_F(EitherTest, LeftOptCanBeQueriedAsRvalue) {
|
||||
OnlyMoveable val = make_left<OnlyMoveable, int>(3).left_opt().value();
|
||||
EXPECT_EQ(OnlyMoveable(3), val);
|
||||
}
|
||||
|
||||
TEST_F(EitherTest, RightOptCanBeQueriedAsRvalue) {
|
||||
OnlyMoveable val = make_right<int, OnlyMoveable>(3).right_opt().value();
|
||||
EXPECT_EQ(OnlyMoveable(3), val);
|
||||
}
|
||||
|
||||
class DestructorCallback {
|
||||
public:
|
||||
MOCK_CONST_METHOD0(call, void());
|
||||
|
||||
void EXPECT_CALLED(int times = 1) {
|
||||
EXPECT_CALL(*this, call()).Times(times);
|
||||
}
|
||||
};
|
||||
class ClassWithDestructorCallback {
|
||||
public:
|
||||
ClassWithDestructorCallback(const DestructorCallback *destructorCallback) : _destructorCallback(destructorCallback) {}
|
||||
ClassWithDestructorCallback(const ClassWithDestructorCallback &rhs): _destructorCallback(rhs._destructorCallback) {}
|
||||
|
||||
~ClassWithDestructorCallback() {
|
||||
_destructorCallback->call();
|
||||
}
|
||||
|
||||
private:
|
||||
const DestructorCallback *_destructorCallback;
|
||||
|
||||
ClassWithDestructorCallback &operator=(const ClassWithDestructorCallback &rhs) = delete;
|
||||
};
|
||||
class OnlyMoveableClassWithDestructorCallback {
|
||||
public:
|
||||
OnlyMoveableClassWithDestructorCallback(const DestructorCallback *destructorCallback) : _destructorCallback(destructorCallback) { }
|
||||
OnlyMoveableClassWithDestructorCallback(OnlyMoveableClassWithDestructorCallback &&source): _destructorCallback(source._destructorCallback) {}
|
||||
|
||||
~OnlyMoveableClassWithDestructorCallback() {
|
||||
_destructorCallback->call();
|
||||
}
|
||||
|
||||
private:
|
||||
DISALLOW_COPY_AND_ASSIGN(OnlyMoveableClassWithDestructorCallback);
|
||||
const DestructorCallback *_destructorCallback;
|
||||
};
|
||||
|
||||
class EitherTest_Destructor: public EitherTest {
|
||||
};
|
||||
|
||||
TEST_F(EitherTest_Destructor, LeftDestructorIsCalled) {
|
||||
DestructorCallback destructorCallback;
|
||||
destructorCallback.EXPECT_CALLED(2); //Once for the temp object, once when the either class destructs
|
||||
|
||||
ClassWithDestructorCallback temp(&destructorCallback);
|
||||
either<ClassWithDestructorCallback, string> var = temp;
|
||||
}
|
||||
|
||||
TEST_F(EitherTest_Destructor, RightDestructorIsCalled) {
|
||||
DestructorCallback destructorCallback;
|
||||
destructorCallback.EXPECT_CALLED(2); //Once for the temp object, once when the either class destructs
|
||||
|
||||
ClassWithDestructorCallback temp(&destructorCallback);
|
||||
either<string, ClassWithDestructorCallback> var = temp;
|
||||
}
|
||||
|
||||
TEST_F(EitherTest_Destructor, LeftDestructorIsCalledAfterCopying) {
|
||||
DestructorCallback destructorCallback;
|
||||
destructorCallback.EXPECT_CALLED(3); //Once for the temp object, once for var1 and once for var2
|
||||
|
||||
ClassWithDestructorCallback temp(&destructorCallback);
|
||||
either<ClassWithDestructorCallback, string> var1 = temp;
|
||||
either<ClassWithDestructorCallback, string> var2 = var1;
|
||||
}
|
||||
|
||||
TEST_F(EitherTest_Destructor, RightDestructorIsCalledAfterCopying) {
|
||||
DestructorCallback destructorCallback;
|
||||
destructorCallback.EXPECT_CALLED(3); //Once for the temp object, once for var1 and once for var2
|
||||
|
||||
ClassWithDestructorCallback temp(&destructorCallback);
|
||||
either<string, ClassWithDestructorCallback> var1 = temp;
|
||||
either<string, ClassWithDestructorCallback> var2 = var1;
|
||||
}
|
||||
|
||||
TEST_F(EitherTest_Destructor, LeftDestructorIsCalledAfterMoving) {
|
||||
DestructorCallback destructorCallback;
|
||||
destructorCallback.EXPECT_CALLED(3); //Once for the temp object, once for var1 and once for var2
|
||||
|
||||
OnlyMoveableClassWithDestructorCallback temp(&destructorCallback);
|
||||
either<OnlyMoveableClassWithDestructorCallback, string> var1 = std::move(temp);
|
||||
either<OnlyMoveableClassWithDestructorCallback, string> var2 = std::move(var1);
|
||||
}
|
||||
|
||||
TEST_F(EitherTest_Destructor, RightDestructorIsCalledAfterMoving) {
|
||||
DestructorCallback destructorCallback;
|
||||
destructorCallback.EXPECT_CALLED(3); //Once for the temp object, once for var1 and once for var2
|
||||
|
||||
OnlyMoveableClassWithDestructorCallback temp(&destructorCallback);
|
||||
either<string, OnlyMoveableClassWithDestructorCallback> var1 = std::move(temp);
|
||||
either<string, OnlyMoveableClassWithDestructorCallback> var2 = std::move(var1);
|
||||
}
|
||||
|
||||
TEST_F(EitherTest_Destructor, LeftDestructorIsCalledAfterAssignment) {
|
||||
DestructorCallback destructorCallback1;
|
||||
DestructorCallback destructorCallback2;
|
||||
destructorCallback1.EXPECT_CALLED(2); //Once for the temp1 object, once at the assignment
|
||||
destructorCallback2.EXPECT_CALLED(3); //Once for the temp2 object, once in destructor of var2, once in destructor of var1
|
||||
|
||||
ClassWithDestructorCallback temp1(&destructorCallback1);
|
||||
either<ClassWithDestructorCallback, string> var1 = temp1;
|
||||
ClassWithDestructorCallback temp2(&destructorCallback2);
|
||||
either<ClassWithDestructorCallback, string> var2 = temp2;
|
||||
var1 = var2;
|
||||
}
|
||||
|
||||
TEST_F(EitherTest_Destructor, RightDestructorIsCalledAfterAssignment) {
|
||||
DestructorCallback destructorCallback1;
|
||||
DestructorCallback destructorCallback2;
|
||||
destructorCallback1.EXPECT_CALLED(2); //Once for the temp1 object, once at the assignment
|
||||
destructorCallback2.EXPECT_CALLED(3); //Once for the temp2 object, once in destructor of var2, once in destructor of var1
|
||||
|
||||
ClassWithDestructorCallback temp1(&destructorCallback1);
|
||||
either<string, ClassWithDestructorCallback> var1 = temp1;
|
||||
ClassWithDestructorCallback temp2(&destructorCallback2);
|
||||
either<string, ClassWithDestructorCallback> var2 = temp2;
|
||||
var1 = var2;
|
||||
}
|
||||
|
||||
TEST_F(EitherTest_Destructor, LeftDestructorIsCalledAfterMoveAssignment) {
|
||||
DestructorCallback destructorCallback1;
|
||||
DestructorCallback destructorCallback2;
|
||||
destructorCallback1.EXPECT_CALLED(2); //Once for the temp1 object, once at the assignment
|
||||
destructorCallback2.EXPECT_CALLED(3); //Once for the temp2 object, once in destructor of var2, once in destructor of var1
|
||||
|
||||
OnlyMoveableClassWithDestructorCallback temp1(&destructorCallback1);
|
||||
either<OnlyMoveableClassWithDestructorCallback, string> var1 = std::move(temp1);
|
||||
OnlyMoveableClassWithDestructorCallback temp2(&destructorCallback2);
|
||||
either<OnlyMoveableClassWithDestructorCallback, string> var2 = std::move(temp2);
|
||||
var1 = std::move(var2);
|
||||
}
|
||||
|
||||
TEST_F(EitherTest_Destructor, RightDestructorIsCalledAfterMoveAssignment) {
|
||||
DestructorCallback destructorCallback1;
|
||||
DestructorCallback destructorCallback2;
|
||||
destructorCallback1.EXPECT_CALLED(2); //Once for the temp1 object, once at the assignment
|
||||
destructorCallback2.EXPECT_CALLED(3); //Once for the temp2 object, once in destructor of var2, once in destructor of var1
|
||||
|
||||
OnlyMoveableClassWithDestructorCallback temp1(&destructorCallback1);
|
||||
either<string, OnlyMoveableClassWithDestructorCallback> var1 = std::move(temp1);
|
||||
OnlyMoveableClassWithDestructorCallback temp2(&destructorCallback2);
|
||||
either<string, OnlyMoveableClassWithDestructorCallback> var2 = std::move(temp2);
|
||||
var1 = std::move(var2);
|
||||
}
|
||||
Loading…
Reference in New Issue