Implement @total_ordering decorator for extension types (GH-3626)

Implements https://github.com/cython/cython/issues/2090

1 files changed, 178 insertions, 0 deletions

diff --git a/tests/errors/e_exttype_total_ordering.pyx b/tests/errors/e_exttype_total_ordering.pyx
new file mode 100644
index 000000000..6d5dd34e6
--- /dev/null
+++ b/tests/errors/e_exttype_total_ordering.pyx
@@ -0,0 +1,178 @@
+# mode: error
+# tag: total_ordering, warnings
+
+cimport cython
+
+
+# Test all combinations with not enough methods.
+
+@cython.total_ordering
+cdef class ExtNoFuncs:
+    pass
+
+@cython.total_ordering
+cdef class ExtGe:
+    def __ge__(self, other):
+        return False
+
+@cython.total_ordering
+cdef class ExtLe:
+    def __le__(self, other):
+        return False
+
+@cython.total_ordering
+cdef class ExtLeGe:
+    def __le__(self, other):
+        return False
+
+    def __ge__(self, other):
+        return False
+
+@cython.total_ordering
+cdef class ExtGt:
+    def __gt__(self, other):
+        return False
+
+@cython.total_ordering
+cdef class ExtGtGe:
+    def __gt__(self, other):
+        return False
+
+    def __ge__(self, other):
+        return False
+
+@cython.total_ordering
+cdef class ExtGtLe:
+    def __gt__(self, other):
+        return False
+
+    def __le__(self, other):
+        return False
+
+@cython.total_ordering
+cdef class ExtGtLeGe:
+    def __gt__(self, other):
+        return False
+
+    def __le__(self, other):
+        return False
+
+    def __ge__(self, other):
+        return False
+
+@cython.total_ordering
+cdef class ExtLt:
+    def __lt__(self, other):
+        return False
+
+@cython.total_ordering
+cdef class ExtLtGe:
+    def __lt__(self, other):
+        return False
+
+    def __ge__(self, other):
+        return False
+
+@cython.total_ordering
+cdef class ExtLtLe:
+    def __lt__(self, other):
+        return False
+
+    def __le__(self, other):
+        return False
+
+@cython.total_ordering
+cdef class ExtLtLeGe:
+    def __lt__(self, other):
+        return False
+
+    def __le__(self, other):
+        return False
+
+    def __ge__(self, other):
+        return False
+
+@cython.total_ordering
+cdef class ExtLtGt:
+    def __lt__(self, other):
+        return False
+
+    def __gt__(self, other):
+        return False
+
+@cython.total_ordering
+cdef class ExtLtGtGe:
+    def __lt__(self, other):
+        return False
+
+    def __gt__(self, other):
+        return False
+
+    def __ge__(self, other):
+        return False
+
+@cython.total_ordering
+cdef class ExtLtGtLe:
+    def __lt__(self, other):
+        return False
+
+    def __gt__(self, other):
+        return False
+
+    def __le__(self, other):
+        return False
+
+@cython.total_ordering
+cdef class ExtLtGtLeGe:
+    def __lt__(self, other):
+        return False
+
+    def __gt__(self, other):
+        return False
+
+    def __le__(self, other):
+        return False
+
+    def __ge__(self, other):
+        return False
+
+@cython.total_ordering
+cdef class ExtNe:
+    def __ne__(self, other):
+        return False
+
+@cython.total_ordering
+cdef class ExtEq:
+    def __eq__(self, other):
+        return False
+
+@cython.total_ordering
+cdef class ExtEqNe:
+    def __eq__(self, other):
+        return False
+
+    def __ne__(self, other):
+        return False
+
+
+_WARNINGS = """
+10:5: total_ordering directive used, but no comparison and equality methods defined
+14:5: total_ordering directive used, but no equality method defined
+19:5: total_ordering directive used, but no equality method defined
+24:5: total_ordering directive used, but no equality method defined
+32:5: total_ordering directive used, but no equality method defined
+37:5: total_ordering directive used, but no equality method defined
+45:5: total_ordering directive used, but no equality method defined
+53:5: total_ordering directive used, but no equality method defined
+64:5: total_ordering directive used, but no equality method defined
+69:5: total_ordering directive used, but no equality method defined
+77:5: total_ordering directive used, but no equality method defined
+85:5: total_ordering directive used, but no equality method defined
+96:5: total_ordering directive used, but no equality method defined
+104:5: total_ordering directive used, but no equality method defined
+115:5: total_ordering directive used, but no equality method defined
+126:5: total_ordering directive used, but no equality method defined
+140:5: total_ordering directive used, but no comparison methods defined
+145:5: total_ordering directive used, but no comparison methods defined
+150:5: total_ordering directive used, but no comparison methods defined
+"""