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Tracking issue for RFC 3617 precise capturing of types #130043
Description
The feature gate for the issue is #![feature(precise_capturing_of_types)].
This tracking issue covers extending the precise_capturing feature to allow for the partial capturing of type and const generic parameters.
About tracking issues
Tracking issues are used to record the overall progress of implementation. They are also used as hubs connecting to other relevant issues, e.g., bugs or open design questions. A tracking issue is however not meant for large scale discussion, questions, or bug reports about a feature. Instead, open a dedicated issue for the specific matter and add the relevant feature gate label.
Steps
- Accept an RFC.
- Stabilize precise capturing syntax and precise capturing of lifetimes.
- Implement in nightly.
- Add documentation to the dev guide.
- See the instructions.
- Add documentation to the reference.
- See the instructions.
- Add formatting for new syntax to the style guide.
- See the nightly style procedure.
- Stabilize.
- See the instructions.
Unresolved Questions
TODO.
Related
TODO.
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nikomatsakis commentedon Sep 7, 2024
I had added an example in #130031 (which I closed in favor of this issue)
workingjubilee commentedon Sep 7, 2024
Because I thought I was seeing double for a moment, for future reference, these two issues are related for obvious reasons, but currently...
Fixup return position impl trait overcapturing for the 2024 edition (#…
Rollup merge of rust-lang#138128 - compiler-errors:precise-capturing-…
Unrolled build for rust-lang#138128
compiler-errors commentedon Sep 13, 2025
NeuralModder commentedon Sep 13, 2025
compiler-errors commentedon Sep 13, 2025