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Imply outlives-bounds on lazy type aliases#119350

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fmease:lazy-ty-aliases-implied-bounds
Jan 5, 2024
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Imply outlives-bounds on lazy type aliases#119350
bors merged 1 commit intorust-lang:masterfrom
fmease:lazy-ty-aliases-implied-bounds

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@fmease fmease commented Dec 27, 2023 •
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Fixes #118479.

r? types

@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Dec 27, 2023
@fmease fmease added A-implied-bounds Area: Implied bounds / inferred outlives-bounds F-lazy_type_alias `#![feature(lazy_type_alias)]` T-types Relevant to the types team, which will review and decide on the PR/issue. labels Dec 27, 2023
@fmease fmease force-pushed the lazy-ty-aliases-implied-bounds branch 2 times, most recently from 8c9c05c to be171ed Compare December 27, 2023 15:36
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@fmease fmease force-pushed the lazy-ty-aliases-implied-bounds branch from be171ed to 298bfd6 Compare December 27, 2023 16:05
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fmease commented Dec 27, 2023
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tests/ui/associated-type-bounds/duplicate.stderr
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@fmease fmease Dec 27, 2023

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Reordering of diagnostics prolly because some queries now get called earlier than later.

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compiler-errors commented Dec 27, 2023

r? compiler-errors @bors r+

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bors commented Dec 27, 2023

📌 Commit 298bfd6 has been approved by compiler-errors

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Dec 27, 2023
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fmease commented Dec 27, 2023 •
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Ah, if we want to “[treat] lazy type aliases like structs”, we should probably also imply implied bounds1 (transitively) and make the following code compile:

#![feature(lazy_type_alias)]
type Ref0<'a, T> = Ref1<'a, T>;
type Ref1<'a, T> = &'a T;

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Footnotes

  1. So no tests/ui/lazy-type-alias/dont-imply-implied-outlives-bounds.rs ↩

@rustbot rustbot added the S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. label Dec 27, 2023
@bors bors removed the S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. label Dec 27, 2023
@fmease fmease force-pushed the lazy-ty-aliases-implied-bounds branch from 298bfd6 to b69457c Compare December 28, 2023 00:41
@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Dec 28, 2023
@fmease fmease mentioned this pull request Dec 28, 2023
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@fmease fmease force-pushed the lazy-ty-aliases-implied-bounds branch from b69457c to 90d6fe2 Compare December 28, 2023 01:05
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fmease commented Dec 28, 2023

I accidentally squashed the commits ^^', I can try to untangle it again if you'd like me to >.<

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compiler-errors commented Dec 28, 2023

No it's fine

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compiler-errors commented Jan 4, 2024

@bors r+

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bors commented Jan 4, 2024

📌 Commit 90d6fe2 has been approved by compiler-errors

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jan 4, 2024
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Jan 5, 2024
@matthiaskrgr
Rollup merge of rust-lang#119350 - fmease:lazy-ty-aliases-implied-bou…
2cf6067 
…nds, r=compiler-errors

Imply outlives-bounds on lazy type aliases

Fixes rust-lang#118479.

r? types
@matthiaskrgr matthiaskrgr mentioned this pull request Jan 5, 2024
Closed
bors added a commit to rust-lang-ci/rust that referenced this pull request Jan 5, 2024
@bors
Auto merge of rust-lang#119603 - matthiaskrgr:rollup-ulep7qk, r=matth…
2b68104 
…iaskrgr

Rollup of 8 pull requests

Successful merges:

 - rust-lang#118680 (Add support for shell argfiles)
 - rust-lang#119151 (Hide foreign `#[doc(hidden)]` paths in import suggestions)
 - rust-lang#119216 (Use diagnostic namespace in stdlib)
 - rust-lang#119350 (Imply outlives-bounds on lazy type aliases)
 - rust-lang#119538 (Cleanup error handlers: round 5)
 - rust-lang#119563 (Check yield terminator's resume type in borrowck)
 - rust-lang#119589 (cstore: Remove unnecessary locking from `CrateMetadata`)
 - rust-lang#119591 (rustc_mir_transform: Make DestinationPropagation stable for queries)

r? `@ghost`
`@rustbot` modify labels: rollup
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Jan 5, 2024
@matthiaskrgr
Rollup merge of rust-lang#119350 - fmease:lazy-ty-aliases-implied-bou…
b87e4e9 
…nds, r=compiler-errors

Imply outlives-bounds on lazy type aliases

Fixes rust-lang#118479.

r? types
@matthiaskrgr matthiaskrgr mentioned this pull request Jan 5, 2024
Closed
bors added a commit to rust-lang-ci/rust that referenced this pull request Jan 5, 2024
@bors
Auto merge of rust-lang#119609 - matthiaskrgr:rollup-zg85wqn, r=matth…
7c83a70 
…iaskrgr

Rollup of 7 pull requests

Successful merges:

 - rust-lang#118680 (Add support for shell argfiles)
 - rust-lang#119216 (Use diagnostic namespace in stdlib)
 - rust-lang#119350 (Imply outlives-bounds on lazy type aliases)
 - rust-lang#119538 (Cleanup error handlers: round 5)
 - rust-lang#119563 (Check yield terminator's resume type in borrowck)
 - rust-lang#119577 (Migrate memory overlap check from validator to lint)
 - rust-lang#119589 (cstore: Remove unnecessary locking from `CrateMetadata`)

Failed merges:

 - rust-lang#119591 (rustc_mir_transform: Make DestinationPropagation stable for queries)

r? `@ghost`
`@rustbot` modify labels: rollup
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Jan 5, 2024
@matthiaskrgr
Rollup merge of rust-lang#119350 - fmease:lazy-ty-aliases-implied-bou…
3a58b83 
…nds, r=compiler-errors

Imply outlives-bounds on lazy type aliases

Fixes rust-lang#118479.

r? types
@matthiaskrgr matthiaskrgr mentioned this pull request Jan 5, 2024
Closed
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Jan 5, 2024
@matthiaskrgr
Rollup merge of rust-lang#119350 - fmease:lazy-ty-aliases-implied-bou…
7e58b2f 
…nds, r=compiler-errors

Imply outlives-bounds on lazy type aliases

Fixes rust-lang#118479.

r? types
@matthiaskrgr matthiaskrgr mentioned this pull request Jan 5, 2024
Closed
bors added a commit to rust-lang-ci/rust that referenced this pull request Jan 5, 2024
@bors
Auto merge of rust-lang#119630 - matthiaskrgr:rollup-oymvjkn, r=matth…
3db2c3b 
…iaskrgr

Rollup of 8 pull requests

Successful merges:

 - rust-lang#118680 (Add support for shell argfiles)
 - rust-lang#119151 (Hide foreign `#[doc(hidden)]` paths in import suggestions)
 - rust-lang#119350 (Imply outlives-bounds on lazy type aliases)
 - rust-lang#119354 (Make `negative_bounds` internal & fix some of its issues)
 - rust-lang#119506 (Use `resolutions(()).effective_visiblities` to avoid cycle errors in `report_object_error`)
 - rust-lang#119554 (Fix scoping for let chains in match guards)
 - rust-lang#119563 (Check yield terminator's resume type in borrowck)
 - rust-lang#119589 (cstore: Remove unnecessary locking from `CrateMetadata`)

r? `@ghost`
`@rustbot` modify labels: rollup
@matthiaskrgr matthiaskrgr mentioned this pull request Jan 5, 2024
Merged
bors added a commit to rust-lang-ci/rust that referenced this pull request Jan 5, 2024
@bors
Auto merge of rust-lang#119634 - matthiaskrgr:rollup-v2xt7et, r=matth…
595bc6f 
…iaskrgr

Rollup of 8 pull requests

Successful merges:

 - rust-lang#119151 (Hide foreign `#[doc(hidden)]` paths in import suggestions)
 - rust-lang#119350 (Imply outlives-bounds on lazy type aliases)
 - rust-lang#119354 (Make `negative_bounds` internal & fix some of its issues)
 - rust-lang#119506 (Use `resolutions(()).effective_visiblities` to avoid cycle errors in `report_object_error`)
 - rust-lang#119554 (Fix scoping for let chains in match guards)
 - rust-lang#119563 (Check yield terminator's resume type in borrowck)
 - rust-lang#119589 (cstore: Remove unnecessary locking from `CrateMetadata`)
 - rust-lang#119622 (never patterns: Document behavior of never patterns with macros-by-example)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit fc591db into rust-lang:master Jan 5, 2024
@rustbot rustbot added this to the 1.77.0 milestone Jan 5, 2024
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Jan 5, 2024
@rust-timer
Unrolled build for rust-lang#119350
14e4649 
Rollup merge of rust-lang#119350 - fmease:lazy-ty-aliases-implied-bounds, r=compiler-errors

Imply outlives-bounds on lazy type aliases

Fixes rust-lang#118479.

r? types
@fmease fmease deleted the lazy-ty-aliases-implied-bounds branch January 5, 2024 23:48
@fmease fmease mentioned this pull request Mar 11, 2024
Closed
@fmease fmease mentioned this pull request Jun 10, 2025
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A-implied-bounds Area: Implied bounds / inferred outlives-bounds F-lazy_type_alias `#![feature(lazy_type_alias)]` S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.

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Lazy Type Aliases (LTA)
Status: Done

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1.77.0

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Imply outlives-bounds on lazy type aliases

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@fmease @rust-log-analyzer @compiler-errors @bors @jackh726 @rustbot