Expose wrapped iterator in SerializationIterator

[yorickvP]

Change Summary

We're currently working around pydantic#8907 by parsing the pointer out of the repr(). To make this workaround slightly better, we'd like to expose the wrapped iterator in SerializationIterator via .iterator.

Related issue number

• Related to: https://github.com/pydantic/pydantic/issues/8907

Checklist

• [x] Unit tests for the changes exist
• [ ] Documentation reflects the changes where applicable
• [ ] Pydantic tests pass with this pydantic-core (except for expected changes)
• [x] My PR is ready to review, please add a comment including the phrase "please review" to assign reviewers

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 89.54%. Comparing base (ab503cb) to head (6e3ed61). Report is 156 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1399 +/- ## ========================================== - Coverage 90.21% 89.54% -0.68% ========================================== Files 106 109 +3 Lines 16339 17348 +1009 Branches 36 41 +5 ========================================== + Hits 14740 15534 +794 - Misses 1592 1794 +202 - Partials 7 20 +13 ``` | [Files](https://app.codecov.io/gh/pydantic/pydantic-core/pull/1399?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pydantic) | Coverage Δ | | |---|---|---| | [src/serializers/type\_serializers/generator.rs](https://app.codecov.io/gh/pydantic/pydantic-core/pull/1399?src=pr&el=tree&filepath=src%2Fserializers%2Ftype_serializers%2Fgenerator.rs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pydantic#diff-c3JjL3NlcmlhbGl6ZXJzL3R5cGVfc2VyaWFsaXplcnMvZ2VuZXJhdG9yLnJz) | `81.39% <ø> (-13.46%)` | :arrow_down: | ... and [39 files with indirect coverage changes](https://app.codecov.io/gh/pydantic/pydantic-core/pull/1399/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pydantic) ------ [Continue to review full report in Codecov by Sentry](https://app.codecov.io/gh/pydantic/pydantic-core/pull/1399?dropdown=coverage&src=pr&el=continue&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pydantic). > **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pydantic) > `Δ = absolute (impact)`, `ø = not affected`, `? = missing data` > Powered by [Codecov](https://app.codecov.io/gh/pydantic/pydantic-core/pull/1399?dropdown=coverage&src=pr&el=footer&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pydantic). Last update [39a6b10...6e3ed61](https://app.codecov.io/gh/pydantic/pydantic-core/pull/1399?dropdown=coverage&src=pr&el=lastupdated&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pydantic). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pydantic).

[yorickvP]

Test failure looks unrelated.

[codspeed-hq[bot]]

CodSpeed Performance Report

Merging #1399 will not alter performance

_{Comparing yorickvP:yorickvp/expose-sit-iterator (6e3ed61) with main (39a6b10)}

Summary

✅ 155 untouched benchmarks