1 files changed, 98 insertions, 0 deletions
diff --git a/tests/compile/cpp_temp_assignment.pyx b/tests/compile/cpp_temp_assignment.pyx
new file mode 100644
index 000000000..58ae39a70
--- /dev/null
+++ b/tests/compile/cpp_temp_assignment.pyx
@@ -0,0 +1,98 @@
+# tag: cpp,cpp11
+# mode: compile 
+# tag: no-cpp-locals
+# TODO cpp_locals works fine with the standard library that comes with gcc11
+# but not with gcc8. Therefore disable the test for now
+
+cdef extern from *:
+    """
+    class NoAssignIterator {
+        public:
+            explicit NoAssignIterator(int pos) : pos_(pos) {}
+            NoAssignIterator(NoAssignIterator&) = delete;
+            NoAssignIterator(NoAssignIterator&&) {}
+            NoAssignIterator& operator=(NoAssignIterator&) = delete;
+            NoAssignIterator& operator=(NoAssignIterator&&) { return *this; }
+            // Default constructor of temp variable is needed by Cython
+            // as of 3.0a6.
+            NoAssignIterator() : pos_(0) {}
+            int operator*() {
+                return pos_;
+            }
+            NoAssignIterator operator++() {
+                return NoAssignIterator(pos_ + 1);
+            }
+            int operator!=(NoAssignIterator other) {
+                return pos_ != other.pos_;
+            }
+            int pos_;
+    };
+    class NoAssign {
+        public:
+            NoAssign() {}
+            NoAssign(NoAssign&) = delete;
+            NoAssign(NoAssign&&) {}
+            NoAssign& operator=(NoAssign&) = delete;
+            NoAssign& operator=(NoAssign&&) { return *this; }
+            void func() {}
+            NoAssignIterator begin() {
+                return NoAssignIterator(0);
+            }
+            NoAssignIterator end() {
+                return NoAssignIterator(2);
+            }
+    };
+
+    NoAssign get_NoAssign_Py() {
+        return NoAssign();
+    }
+    NoAssign get_NoAssign_Cpp() {
+        return NoAssign();
+    }
+
+    """
+    cdef cppclass NoAssignIterator:
+        int operator*()
+        NoAssignIterator operator++()
+        int operator!=(NoAssignIterator)
+
+    cdef cppclass NoAssign:
+        void func()
+        NoAssignIterator begin()
+        NoAssignIterator end()
+
+    # might raise Python exception (thus needs a temp)
+    NoAssign get_NoAssign_Py() except *
+    # might raise C++ exception (thus needs a temp)
+    NoAssign get_NoAssign_Cpp() except +
+
+cdef internal_cpp_func(NoAssign arg):
+    pass
+
+def test_call_to_function():
+    # will fail to compile if move constructors aren't used
+    internal_cpp_func(get_NoAssign_Py())
+    internal_cpp_func(get_NoAssign_Cpp())
+
+def test_assignment_to_name():
+    # will fail if move constructors aren't used
+    cdef NoAssign value
+    value = get_NoAssign_Py()
+    value = get_NoAssign_Cpp()
+
+def test_assignment_to_scope():
+    cdef NoAssign value
+    value = get_NoAssign_Py()
+    value = get_NoAssign_Cpp()
+    def inner():
+        value.func()
+
+cdef class AssignToClassAttr:
+    cdef NoAssign attr
+    def __init__(self):
+        self.attr = get_NoAssign_Py()
+        self.attr = get_NoAssign_Cpp()
+
+def test_generator_cpp_iterator_as_temp():
+    for i in get_NoAssign_Py():
+        yield i