intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 35 insertions, 0 deletions

diff --git a/util/generic/maybe.pxd b/util/generic/maybe.pxd
new file mode 100644
index 0000000000..15161dd204
--- /dev/null
+++ b/util/generic/maybe.pxd
@@ -0,0 +1,35 @@
+cdef extern from "<util/generic/maybe.h>" nogil:
+    cdef cppclass TNothing:
+        pass
+
+    cdef TNothing Nothing()
+
+    cdef cppclass TMaybe[T]:
+        TMaybe(...) except +
+
+        TMaybe& operator=(...) except +
+
+        void ConstructInPlace(...) except +
+        void Clear() except +
+
+        bint Defined()
+        bint Empty()
+
+        void CheckDefined() except +
+
+        T* Get() except +
+        T& GetRef() except +
+
+        T GetOrElse(T&) except +
+        TMaybe OrElse(TMaybe&) except +
+
+        TMaybe[U] Cast[U]() except +
+
+        void Swap(TMaybe& other) except +
+
+        bint operator ==[U](U&) except +
+        bint operator !=[U](U&) except +
+        bint operator <[U](U&) except +
+        bint operator >[U](U&) except +
+        bint operator <=[U](U&) except +
+        bint operator >=[U](U&) except +