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Revert "Add make_value_iterator (#3271)"

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This reverts commit ee0c5ee405.
This commit is contained in:
Henry Schreiner
2021-09-22 22:50:29 -04:00
parent 1dc9a23cae
commit 2fa3fcfda5
4 changed files with 32 additions and 176 deletions
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58
tests/test_sequences_and_iterators.cpp
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@@ -15,7 +15,6 @@
#include <algorithm>
#include <utility>
#include <vector>
#ifdef PYBIND11_HAS_OPTIONAL
#include <optional>
@@ -38,29 +37,6 @@ bool operator==(const NonZeroIterator<std::pair<A, B>>& it, const NonZeroSentine
return !(*it).first || !(*it).second;
}
class NonCopyableInt {
public:
explicit NonCopyableInt(int value) : value_(value) {}
NonCopyableInt(const NonCopyableInt &) = delete;
NonCopyableInt(NonCopyableInt &&other) noexcept : value_(other.value_) {
other.value_ = -1; // detect when an unwanted move occurs
}
NonCopyableInt &operator=(const NonCopyableInt &) = delete;
NonCopyableInt &operator=(NonCopyableInt &&other) noexcept {
value_ = other.value_;
other.value_ = -1; // detect when an unwanted move occurs
return *this;
}
int get() const { return value_; }
void set(int value) { value_ = value; }
~NonCopyableInt() = default;
private:
int value_;
};
using NonCopyableIntPair = std::pair<NonCopyableInt, NonCopyableInt>;
PYBIND11_MAKE_OPAQUE(std::vector<NonCopyableInt>);
PYBIND11_MAKE_OPAQUE(std::vector<NonCopyableIntPair>);
template <typename PythonType>
py::list test_random_access_iterator(PythonType x) {
if (x.size() < 5)
@@ -312,10 +288,6 @@ TEST_SUBMODULE(sequences_and_iterators, m) {
.def(
"items",
[](const StringMap &map) { return py::make_iterator(map.begin(), map.end()); },
py::keep_alive<0, 1>())
.def(
"values",
[](const StringMap &map) { return py::make_value_iterator(map.begin(), map.end()); },
py::keep_alive<0, 1>());
// test_generalized_iterators
@@ -334,38 +306,8 @@ TEST_SUBMODULE(sequences_and_iterators, m) {
.def("nonzero_keys", [](const IntPairs& s) {
return py::make_key_iterator(NonZeroIterator<std::pair<int, int>>(s.begin()), NonZeroSentinel());
}, py::keep_alive<0, 1>())
.def("nonzero_values", [](const IntPairs& s) {
return py::make_value_iterator(NonZeroIterator<std::pair<int, int>>(s.begin()), NonZeroSentinel());
}, py::keep_alive<0, 1>())
;
// test_iterater_referencing
py::class_<NonCopyableInt>(m, "NonCopyableInt")
.def(py::init<int>())
.def("set", &NonCopyableInt::set)
.def("__int__", &NonCopyableInt::get)
;
py::class_<std::vector<NonCopyableInt>>(m, "VectorNonCopyableInt")
.def(py::init<>())
.def("append", [](std::vector<NonCopyableInt> &vec, int value) {
vec.emplace_back(value);
})
.def("__iter__", [](std::vector<NonCopyableInt> &vec) {
return py::make_iterator(vec.begin(), vec.end());
})
;
py::class_<std::vector<NonCopyableIntPair>>(m, "VectorNonCopyableIntPair")
.def(py::init<>())
.def("append", [](std::vector<NonCopyableIntPair> &vec, const std::pair<int, int> &value) {
vec.emplace_back(NonCopyableInt(value.first), NonCopyableInt(value.second));
})
.def("keys", [](std::vector<NonCopyableIntPair> &vec) {
return py::make_key_iterator(vec.begin(), vec.end());
})
.def("values", [](std::vector<NonCopyableIntPair> &vec) {
return py::make_value_iterator(vec.begin(), vec.end());
})
;
#if 0
// Obsolete: special data structure for exposing custom iterator types to python