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@lcian
lcian
changed the title
(削除) lcian/feat/stream ext (削除ここまで)
(追記) feat: Stream extension (追記ここまで)
Jun 30, 2026
@lcian
lcian
changed the title
(削除) feat: Stream extension (削除ここまで)
(追記) feat(core): Stream extension trait (追記ここまで)
Jun 30, 2026
lcian
lcian
commented
Jun 30, 2026
fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
let hub = self.hub.clone();
// https://doc.rust-lang.org/std/pin/index.html#pinning-is-structural-for-field
let stream = unsafe { self.map_unchecked_mut(|s| &mut s.stream) };
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It is possible to avoid this direct usage of unsafe (and the one in SentryFuture) by adding a dependency to pin-project-lite.
szokeasaurusrex
commented
Aug 3, 2026
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@lcian what is the status with this PR? Is it abandoned or are you still planning to finish it and get it ready for review?
lcian
marked this pull request as ready for review
August 3, 2026 11:12
lcian
commented
Aug 3, 2026
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@szokeasaurusrex it's ready for review now, please take a look whenever you have time. I don't need this at the moment but it came up a couple times, so I think it would be a nice utility to have.
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Description
This adds an extension trait for
futures_core::Streamthat can be used to.bind_hub(...)on a stream, much like the existing machinery we have for futures.This came up a few times already, and it happens to be one of the ways one could work around #1208 (given that the problematic response body is a stream, one can use such a stream wrapper to bind the current hub before converting that stream to a response -- I still think a proper separate fix should be introduced in the
sentry-towerinstrumentation though, as the user should not have to remember to do this manually. This is a more general construct that can be used in other scenarios too.