bkietz commented on a change in pull request #10397:
URL: https://github.com/apache/arrow/pull/10397#discussion_r644278145
##########
File path: cpp/src/arrow/util/future.h
##########
@@ -937,4 +940,19 @@ Future<BreakValueType> Loop(Iterate iterate) {
return break_fut;
}
+template <typename T>
+struct EnsureFuture {
+ using type = Future<T>;
+};
+
+template <typename T>
+struct EnsureFuture<Result<T>> {
Review comment:
sure
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