refactor(dfir_lang): remove stratum, add push codegen, test reduce, reduce_keyed, reduce_no_replay#2966
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… `reduce_keyed`, `reduce_no_replay` PR: #2966
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Pull request overview
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Refactors dfir_lang reduce-family operators to remove stratum-based delay typing and adds push-side codegen paths, with new/updated tests to validate push behavior (including no-replay semantics).
Changes:
- Add push-side surface tests for
reduce,reduce_keyed, andreduce_no_replay. - Update
reduce,reduce_keyed, andreduce_no_replayoperator codegen to support push outputs and removeDelayType::Stratum. - Refresh compile-fail
.stderrexpectations forreduce_keyedbad-type cases.
Reviewed changes
Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.
Show a summary per file
| File | Description |
|---|---|
| dfir_rs/tests/surface_push_blocking.rs | Adds new push-side tests for reduce, reduce_keyed, and reduce_no_replay. |
| dfir_rs/tests/compile-fail/stable/surface_reduce_keyed_badtype_option.stderr | Updates expected compiler output for keyed-reduce bad option input. |
| dfir_rs/tests/compile-fail/stable/surface_reduce_keyed_badtype_int.stderr | Updates expected compiler output for keyed-reduce bad int input. |
| dfir_lang/src/graph/ops/reduce_no_replay.rs | Removes stratum delay typing and adds push codegen that attempts “no replay” gating. |
| dfir_lang/src/graph/ops/reduce_keyed.rs | Removes stratum delay typing and adds push codegen path for keyed reduce. |
| dfir_lang/src/graph/ops/reduce.rs | Removes stratum delay typing and adds push codegen that forwards output when downstream exists. |
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… `reduce_keyed`, `reduce_no_replay` PR: #2966 Handle outputs.is_empty() in reduce_keyed push path Restructured the write_iterator logic in reduce_keyed.rs to follow the standard pattern: `if is_pull { ... } else if outputs.is_empty() { ... } else { ... }`. Previously, the `!is_pull` branch unconditionally accessed `outputs[0]`, which would panic if reduce_keyed was used as a terminal push operator with no downstream outputs (e.g., as a singleton reference target). The new `outputs.is_empty()` branch generates a `for_each`-style sink that accumulates into the hashtable without forwarding downstream, matching the pattern used by reduce, fold, reduce_no_replay, and fold_no_replay. Co-authored-by: Infinity 🤖 <infinity@hydro.run> PR: #2966
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