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-rw-r--r--test/support/any_helpers.h163
1 files changed, 134 insertions, 29 deletions
diff --git a/test/support/any_helpers.h b/test/support/any_helpers.h
index bb1ad175c1f2d..a720ecd7c82f8 100644
--- a/test/support/any_helpers.h
+++ b/test/support/any_helpers.h
@@ -9,12 +9,14 @@
#ifndef ANY_HELPERS_H
#define ANY_HELPERS_H
-#include <experimental/any>
#include <typeinfo>
#include <type_traits>
#include <cassert>
+namespace std { namespace experimental {} }
+
#include "test_macros.h"
+#include "type_id.h"
#if !defined(TEST_HAS_NO_RTTI)
#define RTTI_ASSERT(X) assert(X)
@@ -32,42 +34,64 @@ template <class _Tp>
>
{};
+template <class T>
+bool containsType(std::any const& a) {
+#if !defined(TEST_HAS_NO_RTTI)
+ return a.type() == typeid(T);
+#else
+ return a.has_value() && std::any_cast<T>(&a) != nullptr;
+#endif
+}
// Return 'true' if 'Type' will be considered a small type by 'any'
template <class Type>
bool isSmallType() {
-#if defined(_LIBCPP_VERSION)
- return std::experimental::__any_imp::_IsSmallObject<Type>::value;
-#else
return IsSmallObject<Type>::value;
-#endif
-
}
// Assert that an object is empty. If the object used to contain an object
// of type 'LastType' check that it can no longer be accessed.
template <class LastType = int>
-void assertEmpty(std::experimental::any const& a) {
- assert(a.empty());
+void assertEmpty(std::any const& a) {
+ using namespace std;
+ assert(!a.has_value());
RTTI_ASSERT(a.type() == typeid(void));
- assert(std::experimental::any_cast<LastType const>(&a) == nullptr);
+ assert(any_cast<LastType const>(&a) == nullptr);
}
+template <class Type>
+constexpr auto has_value_member(int) -> decltype(std::declval<Type&>().value, true)
+{ return true; }
+template <class> constexpr bool has_value_member(long) { return false; }
+
+
// Assert that an 'any' object stores the specified 'Type' and 'value'.
template <class Type>
-void assertContains(std::experimental::any const& a, int value = 1) {
- assert(!a.empty());
- RTTI_ASSERT(a.type() == typeid(Type));
- assert(std::experimental::any_cast<Type const &>(a).value == value);
+std::enable_if_t<has_value_member<Type>(0)>
+assertContains(std::any const& a, int value) {
+ assert(a.has_value());
+ assert(containsType<Type>(a));
+ assert(std::any_cast<Type const &>(a).value == value);
+}
+
+template <class Type, class Value>
+std::enable_if_t<!has_value_member<Type>(0)>
+assertContains(std::any const& a, Value value) {
+ assert(a.has_value());
+ assert(containsType<Type>(a));
+ assert(std::any_cast<Type const &>(a) == value);
}
+
// Modify the value of a "test type" stored within an any to the specified
// 'value'.
template <class Type>
-void modifyValue(std::experimental::any& a, int value) {
- assert(!a.empty());
- RTTI_ASSERT(a.type() == typeid(Type));
- std::experimental::any_cast<Type&>(a).value = value;
+void modifyValue(std::any& a, int value) {
+ using namespace std;
+ using namespace std::experimental;
+ assert(a.has_value());
+ assert(containsType<Type>(a));
+ any_cast<Type&>(a).value = value;
}
// A test type that will trigger the small object optimization within 'any'.
@@ -89,25 +113,31 @@ struct small_type
int value;
- explicit small_type(int val) : value(val) {
+ explicit small_type(int val = 0) : value(val) {
+ ++count;
+ }
+ explicit small_type(int, int val, int) : value(val) {
+ ++count;
+ }
+ small_type(std::initializer_list<int> il) : value(*il.begin()) {
++count;
}
- small_type(small_type const & other) throw() {
+ small_type(small_type const & other) noexcept {
value = other.value;
++count;
++copied;
++const_copied;
}
- small_type(small_type& other) throw() {
+ small_type(small_type& other) noexcept {
value = other.value;
++count;
++copied;
++non_const_copied;
}
- small_type(small_type && other) throw() {
+ small_type(small_type && other) noexcept {
value = other.value;
other.value = 0;
++count;
@@ -163,11 +193,17 @@ struct large_type
int value;
- large_type(int val) : value(val) {
+ large_type(int val = 0) : value(val) {
++count;
data[0] = 0;
}
-
+ large_type(int, int val, int) : value(val) {
+ ++count;
+ data[0] = 0;
+ }
+ large_type(std::initializer_list<int> il) : value(*il.begin()) {
+ ++count;
+ }
large_type(large_type const & other) {
value = other.value;
++count;
@@ -236,19 +272,24 @@ void throwMyAnyExpression() {
struct small_throws_on_copy
{
static int count;
+ static int copied;
+ static int moved;
+ static void reset() { count = copied = moved = 0; }
int value;
explicit small_throws_on_copy(int val = 0) : value(val) {
++count;
}
-
+ explicit small_throws_on_copy(int, int val, int) : value(val) {
+ ++count;
+ }
small_throws_on_copy(small_throws_on_copy const &) {
throwMyAnyExpression();
}
small_throws_on_copy(small_throws_on_copy && other) throw() {
value = other.value;
- ++count;
+ ++count; ++moved;
}
~small_throws_on_copy() {
@@ -260,26 +301,35 @@ private:
};
int small_throws_on_copy::count = 0;
+int small_throws_on_copy::copied = 0;
+int small_throws_on_copy::moved = 0;
+
// A test type that will NOT trigger the small object optimization within 'any'.
// this type throws if it is copied.
struct large_throws_on_copy
{
static int count;
+ static int copied;
+ static int moved;
+ static void reset() { count = copied = moved = 0; }
int value = 0;
explicit large_throws_on_copy(int val = 0) : value(val) {
data[0] = 0;
++count;
}
-
+ explicit large_throws_on_copy(int, int val, int) : value(val) {
+ data[0] = 0;
+ ++count;
+ }
large_throws_on_copy(large_throws_on_copy const &) {
throwMyAnyExpression();
}
large_throws_on_copy(large_throws_on_copy && other) throw() {
value = other.value;
- ++count;
+ ++count; ++moved;
}
~large_throws_on_copy() {
@@ -293,19 +343,24 @@ private:
};
int large_throws_on_copy::count = 0;
+int large_throws_on_copy::copied = 0;
+int large_throws_on_copy::moved = 0;
// A test type that throws when it is moved. This object will NOT trigger
// the small object optimization in 'any'.
struct throws_on_move
{
static int count;
+ static int copied;
+ static int moved;
+ static void reset() { count = copied = moved = 0; }
int value;
explicit throws_on_move(int val = 0) : value(val) { ++count; }
-
+ explicit throws_on_move(int, int val, int) : value(val) { ++count; }
throws_on_move(throws_on_move const & other) {
value = other.value;
- ++count;
+ ++count; ++copied;
}
throws_on_move(throws_on_move &&) {
@@ -321,6 +376,56 @@ private:
};
int throws_on_move::count = 0;
+int throws_on_move::copied = 0;
+int throws_on_move::moved = 0;
+
+struct small_tracked_t {
+ small_tracked_t()
+ : arg_types(&makeArgumentID<>()) {}
+ small_tracked_t(small_tracked_t const&) noexcept
+ : arg_types(&makeArgumentID<small_tracked_t const&>()) {}
+ small_tracked_t(small_tracked_t &&) noexcept
+ : arg_types(&makeArgumentID<small_tracked_t &&>()) {}
+ template <class ...Args>
+ explicit small_tracked_t(Args&&...)
+ : arg_types(&makeArgumentID<Args...>()) {}
+ template <class ...Args>
+ explicit small_tracked_t(std::initializer_list<int>, Args&&...)
+ : arg_types(&makeArgumentID<std::initializer_list<int>, Args...>()) {}
+
+ TypeID const* arg_types;
+};
+static_assert(IsSmallObject<small_tracked_t>::value, "must be small");
+
+struct large_tracked_t {
+ large_tracked_t()
+ : arg_types(&makeArgumentID<>()) { dummy[0] = 42; }
+ large_tracked_t(large_tracked_t const&) noexcept
+ : arg_types(&makeArgumentID<large_tracked_t const&>()) {}
+ large_tracked_t(large_tracked_t &&) noexcept
+ : arg_types(&makeArgumentID<large_tracked_t &&>()) {}
+ template <class ...Args>
+ explicit large_tracked_t(Args&&...)
+ : arg_types(&makeArgumentID<Args...>()) {}
+ template <class ...Args>
+ explicit large_tracked_t(std::initializer_list<int>, Args&&...)
+ : arg_types(&makeArgumentID<std::initializer_list<int>, Args...>()) {}
+
+ TypeID const* arg_types;
+ int dummy[10];
+};
+
+static_assert(!IsSmallObject<large_tracked_t>::value, "must be small");
+
+
+template <class Type, class ...Args>
+void assertArgsMatch(std::any const& a) {
+ using namespace std;
+ using namespace std::experimental;
+ assert(a.has_value());
+ assert(containsType<Type>(a));
+ assert(any_cast<Type const &>(a).arg_types == &makeArgumentID<Args...>());
+};
#endif