import quincy beta 17.1.0

[ceph.git] / ceph / src / boost / libs / leaf / test / result_load_test.cpp

diff --git a/ceph/src/boost/libs/leaf/test/result_load_test.cpp b/ceph/src/boost/libs/leaf/test/result_load_test.cpp
new file mode 100644 (file)
index 0000000..6dbf370
--- /dev/null
+++ b/ceph/src/boost/libs/leaf/test/result_load_test.cpp
@@ -0,0 +1,62 @@
+// Copyright (c) 2018-2020 Emil Dotchevski and Reverge Studios, Inc.
+
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/leaf/result.hpp>
+#include <boost/leaf/handle_errors.hpp>
+#include <boost/leaf/pred.hpp>
+#include "lightweight_test.hpp"
+
+namespace leaf = boost::leaf;
+
+template <int> struct info { int value; };
+
+template <class T>
+leaf::result<T> test()
+{
+    leaf::result<T> r1 = leaf::new_error(info<42>{40});
+    leaf::result<T> r2 = r1.load(info<1>{});
+    leaf::result<T> r3 = r2.load(info<2>{2}, []{ return info<3>{3}; });
+    leaf::result<T> r4 = r3.load([](info<42> & x){ ++x.value; });
+    leaf::result<T> r5 = r4.load([](info<42> & x){ ++x.value; }, [](info<1> & x){ ++x.value; });
+    return r5;
+}
+
+int main()
+{
+    {
+        int r = leaf::try_handle_all(
+            []
+            {
+                return test<int>();
+            },
+            []( leaf::match_value<info<42>, 42>, leaf::match_value<info<1>, 1>, leaf::match_value<info<2>, 2>, leaf::match_value<info<3>, 3> )
+            {
+                return 1;
+            },
+            []
+            {
+                return 2;
+            } );
+        BOOST_TEST_EQ(r, 1);
+    }
+    {
+        int r = leaf::try_handle_all(
+            []() -> leaf::result<int>
+            {
+                BOOST_LEAF_CHECK(test<void>());
+                return 0;
+            },
+            []( leaf::match_value<info<42>, 42>, leaf::match_value<info<1>, 1>, leaf::match_value<info<2>, 2>, leaf::match_value<info<3>, 3> )
+            {
+                return 1;
+            },
+            []
+            {
+                return 2;
+            } );
+        BOOST_TEST_EQ(r, 1);
+    }
+    return boost::report_errors();
+}