Unlock trailing where-clauses for lazy type aliases#114662
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bors merged 1 commit intorust-lang:masterfrom Aug 11, 2023
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Unlock trailing where-clauses for lazy type aliases#114662bors merged 1 commit intorust-lang:masterfrom
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fmease
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This is a bit awkward. Sadly I couldn't find an obvious way to deduplicate the error diagnostic WhereClauseBeforeTypeAlias & the lint diagnostic for DEPRECATED_WHERE_CLAUSE_LOCATION, the code of the latter is spread across two crates (rustc_ast_passes & rustc_lint_defs).
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…mpiler-errors Rollup of 7 pull requests Successful merges: - rust-lang#114599 (Add impl trait declarations to SMIR) - rust-lang#114622 (rustc: Move `crate_types` and `stable_crate_id` from `Session` to `GlobalCtxt`) - rust-lang#114662 (Unlock trailing where-clauses for lazy type aliases) - rust-lang#114693 (Remove myself from the review rotation) - rust-lang#114694 (make the provisional cache slightly less broken) - rust-lang#114705 (Add spastorino to mailmap) - rust-lang#114712 (Fix a couple of bad comments) r? `@ghost` `@rustbot` modify labels: rollup
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…lebcartwright Amend style guide section for formatting where clauses in type aliases This PR has two parts: 1. Amend wording about breaking before or after the `=`, which is a style guide bugfix to align it with current rustfmt behavior. 2. Explain how to format trailing (rust-lang#89122) where clauses, which are preferred in both GATs (rust-lang#90076) and type aliases (rust-lang#114662). r? `@joshtriplett`
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Allows trailing where-clauses on lazy type aliases and forbids1 leading ones.
Completes #89122 (see section Top-level type aliases).
@rustbot label F-lazy_type_alias
r? @oli-obk
Footnotes
This is absolutely fine since lazy type aliases are only meant to be stabilized as part of a new edition. ↩