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Tracking Issue for RFC 213: Default Type Parameter Fallback · Issue #27336 · rust-lang/rust · GitHub
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B-RFC-approvedBlocker: Approved by a merged RFC but not yet implemented.Blocker: Approved by a merged RFC but not yet implemented.B-RFC-implementedBlocker: Approved by a merged RFC and implemented but not stabilized.Blocker: Approved by a merged RFC and implemented but not stabilized.B-unstableBlocker: Implemented in the nightly compiler and unstable.Blocker: Implemented in the nightly compiler and unstable.C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFCF-default_type_parameter_fallback`#![feature(default_type_parameter_fallback)]``#![feature(default_type_parameter_fallback)]`T-langRelevant to the language teamRelevant to the language team
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2024-07-15: This feature (default_type_parameter_fallback) is slated for removal, but that is currently blocked on too many crater regressions.
EDIT: this issue has been stalled on disagreements about how to handle a nasty problem found during implementation. See the internals thread where this was detailed and discussed.
This is a tracking issue for RFC 213.
The initial implementation of this feature has landed.
schneiderfelipe, Logarithmus and Thewsthewsrobsdedude
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B-RFC-approvedBlocker: Approved by a merged RFC but not yet implemented.Blocker: Approved by a merged RFC but not yet implemented.B-RFC-implementedBlocker: Approved by a merged RFC and implemented but not stabilized.Blocker: Approved by a merged RFC and implemented but not stabilized.B-unstableBlocker: Implemented in the nightly compiler and unstable.Blocker: Implemented in the nightly compiler and unstable.C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFCF-default_type_parameter_fallback`#![feature(default_type_parameter_fallback)]``#![feature(default_type_parameter_fallback)]`T-langRelevant to the language teamRelevant to the language team
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