SF: Clean up ftl::SmallMap lookup fallbacks
Avoid std::cref to a local variable, which is not intuitive and incurs
construction in the non-fallback case.
Bug: 185536303
Test: ftl_test
Change-Id: I1c5a94bdab105a04f8230fe762bdc433eea5c97a
diff --git a/libs/ftl/algorithm_test.cpp b/libs/ftl/algorithm_test.cpp
index 8052caf..487b1b8 100644
--- a/libs/ftl/algorithm_test.cpp
+++ b/libs/ftl/algorithm_test.cpp
@@ -47,4 +47,20 @@
EXPECT_EQ(opt->get(), ftl::StaticVector("tiramisu"sv));
}
+TEST(Algorithm, StaticRef) {
+ using namespace std::string_view_literals;
+
+ const ftl::SmallMap map = ftl::init::map(13, "tiramisu"sv)(14, "upside-down cake"sv);
+ ASSERT_EQ("???"sv,
+ map.get(20).or_else(ftl::static_ref<std::string_view>([] { return "???"sv; }))->get());
+
+ using Map = decltype(map);
+
+ ASSERT_EQ("snow cone"sv,
+ ftl::find_if(map, [](const auto& pair) { return pair.second.front() == 's'; })
+ .transform(ftl::to_mapped_ref<Map>)
+ .or_else(ftl::static_ref<std::string_view>([] { return "snow cone"sv; }))
+ ->get());
+}
+
} // namespace android::test