BLI: remove blender::Optional in favor of std::optional

`std::optional` can be used now, because we switched to C++17.

3 files changed, 1 insertions, 63 deletions

diff --git a/tests/gtests/blenlib/BLI_map_test.cc b/tests/gtests/blenlib/BLI_map_test.cc
index 79a8786def9..7a67255d8d3 100644
--- a/tests/gtests/blenlib/BLI_map_test.cc
+++ b/tests/gtests/blenlib/BLI_map_test.cc
@@ -88,7 +88,7 @@ TEST(map, PopTry)
   map.add(1, 5);
   map.add(2, 7);
   EXPECT_EQ(map.size(), 2u);
-  Optional<int> value = map.pop_try(4);
+  std::optional<int> value = map.pop_try(4);
   EXPECT_EQ(map.size(), 2u);
   EXPECT_FALSE(value.has_value());
   value = map.pop_try(2);
diff --git a/tests/gtests/blenlib/BLI_optional_test.cc b/tests/gtests/blenlib/BLI_optional_test.cc
deleted file mode 100644
index 2fc2188563e..00000000000
--- a/tests/gtests/blenlib/BLI_optional_test.cc
+++ /dev/null
@@ -1,61 +0,0 @@
-#include "BLI_optional.hh"
-#include "BLI_strict_flags.h"
-#include "testing/testing.h"
-#include <string>
-
-using namespace blender;
-
-TEST(optional, DefaultConstructor)
-{
-  Optional<int> a;
-  EXPECT_FALSE(a.has_value());
-}
-
-TEST(optional, ValueConstructor)
-{
-  Optional<int> a(5);
-  EXPECT_TRUE(a.has_value());
-  EXPECT_EQ(a.value(), 5);
-}
-
-TEST(optional, CopyConstructor)
-{
-  Optional<std::string> a("Hello");
-  Optional<std::string> b = a;
-  EXPECT_TRUE(a.has_value());
-  EXPECT_TRUE(b.has_value());
-  b.value()[0] = 'T';
-  EXPECT_EQ(a.value(), "Hello");
-  EXPECT_EQ(b.value(), "Tello");
-}
-
-TEST(optional, Reset)
-{
-  Optional<int> a(4);
-  EXPECT_TRUE(a.has_value());
-  a.reset();
-  EXPECT_FALSE(a.has_value());
-}
-
-TEST(optional, Extract)
-{
-  Optional<int> a(32);
-  EXPECT_TRUE(a.has_value());
-  EXPECT_EQ(a.extract(), 32);
-  EXPECT_FALSE(a.has_value());
-}
-
-TEST(optional, ArrowOperator)
-{
-  Optional<std::string> value = std::string("Hello");
-  EXPECT_TRUE(value.has_value());
-  EXPECT_EQ(value->size(), 5);
-}
-
-TEST(optional, StarOperator)
-{
-  Optional<std::string> value = std::string("Hello");
-  EXPECT_TRUE(value.has_value());
-  std::string &s = *value;
-  EXPECT_EQ(s.size(), 5);
-}
diff --git a/tests/gtests/blenlib/CMakeLists.txt b/tests/gtests/blenlib/CMakeLists.txt
index 31c8e983292..ba493b22b42 100644
--- a/tests/gtests/blenlib/CMakeLists.txt
+++ b/tests/gtests/blenlib/CMakeLists.txt
@@ -63,7 +63,6 @@ BLENDER_TEST(BLI_math_geom "bf_blenlib")
 BLENDER_TEST(BLI_math_matrix "bf_blenlib")
 BLENDER_TEST(BLI_math_vector "bf_blenlib")
 BLENDER_TEST(BLI_memiter "bf_blenlib")
-BLENDER_TEST(BLI_optional "bf_blenlib")
 BLENDER_TEST(BLI_path_util "${BLI_path_util_extra_libs}")
 BLENDER_TEST(BLI_polyfill_2d "bf_blenlib")
 BLENDER_TEST(BLI_set "bf_blenlib")