pitrou commented on a change in pull request #8362:
URL: https://github.com/apache/arrow/pull/8362#discussion_r500539248
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File path: cpp/src/arrow/util/future.h
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@@ -358,6 +357,13 @@ class Future {
return fut;
}
+ static Future DeferNotOk(Result<Future> maybe_future) {
Review comment:
Can you add a docstring?
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File path: cpp/src/arrow/util/future.h
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@@ -154,9 +154,8 @@ class FutureStorage : public FutureStorageBase {
Status status() const { return result_.status(); }
- template <typename U>
- void MarkFinished(U&& value) {
- result_ = std::forward<U>(value);
+ void MarkFinished(Result<T> result) {
Review comment:
Does this implicitly convert from any T-convertible U?
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