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Implement 2024-edition lifetime capture rules RFC #116952

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merged 3 commits into from
Dec 10, 2023
Merged

Implement 2024-edition lifetime capture rules RFC #116952

merged 3 commits into from
Dec 10, 2023

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@compiler-errors compiler-errors commented Oct 19, 2023 •
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Implements rust-lang/rfcs#3498.

@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 Oct 19, 2023
@compiler-errors compiler-errors changed the title Lifetime capture rules 2024 Implement 2024-edition lifetime capture rules RFC Oct 19, 2023
@compiler-errors compiler-errors added S-blocked Status: Blocked on something else such as an RFC or other implementation work. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Oct 19, 2023
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tests/ui/impl-trait/implicit-capture-late.rs Outdated
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// known-bug: unknown
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I can file a bug and link it here once the RFC lands.

@traviscross traviscross mentioned this pull request Nov 4, 2023
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@rustbot labels -S-blocked

The RFC has landed, so this can now move forward.

@rustbot rustbot removed the S-blocked Status: Blocked on something else such as an RFC or other implementation work. label Nov 4, 2023
@rust-cloud-vms rust-cloud-vms bot force-pushed the lifetime_capture_rules_2024 branch from 08a39a6 to 1ed7ebb Compare November 6, 2023 23:59
@compiler-errors compiler-errors marked this pull request as ready for review November 6, 2023 23:59
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r? compiler

danielhenrymantilla
danielhenrymantilla reviewed Nov 10, 2023
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compiler/rustc_ast_lowering/src/lib.rs
fn_kind.expect("expected RPITs to be lowered with a FnKind"),
FnDeclKind::Impl | FnDeclKind::Trait
) || self.tcx.features().lifetime_capture_rules_2024
|| span.at_least_rust_2024()
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According to the RFC:

The stabilization of the 2024 lifetime capture rules in this RFC is contingent on the stabilization of TAIT or some other solution for precise capturing that will allow all code that is allowed under Rust 2021 to be expressed, in some cases with syntactic changes, in Rust 2024.

So until it is stabilized, the feature should be mandatory, even for edition 2024:

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|| span.at_least_rust_2024()

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Reverted

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The RFC says that we're doing this in Rust 2024. It would make sense to me for this to land in Rust 2024 in nightly without a feature flag.

It does have a dependency, as noted. So if we run into a wall, it would need to be reverted and pulled out of Rust 2024 before stabilization. But that's true of many things we have penciled in for Rust 2024. There are various walls that we could run into and need to pull out other things. This RFC is just very specific about what that wall is.

We're fairly committed to this being stabilized in Rust 2024, so it's likely we'll find a way to avoid it running into this wall. If we fail at that, then we'll need to revert this. But it's better for now to just plan for this going in.

@compiler-errors compiler-errors force-pushed the lifetime_capture_rules_2024 branch from 19ce264 to 52143ff Compare November 13, 2023 17:12
@Dylan-DPC Dylan-DPC added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Nov 15, 2023
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@TaKO8Ki: Do you have a chance to look at this?

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TaKO8Ki commented Dec 5, 2023 •
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@compiler-errors I missed it. I will take a look at it!

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TaKO8Ki commented Dec 5, 2023 •
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Looks good to me. @bors r+

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bors commented Dec 5, 2023

📌 Commit 52143ff has been approved by TaKO8Ki

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 5, 2023
compiler-errors added a commit to compiler-errors/rust that referenced this pull request Dec 5, 2023
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Rollup merge of rust-lang#116952 - compiler-errors:lifetime_capture_r…
cfce6e1 
…ules_2024, r=TaKO8Ki

Implement 2024-edition lifetime capture rules RFC

Implements rust-lang/rfcs#3498.
@compiler-errors compiler-errors mentioned this pull request Dec 5, 2023
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compiler-errors added a commit to compiler-errors/rust that referenced this pull request Dec 5, 2023
@compiler-errors
Rollup merge of rust-lang#116952 - compiler-errors:lifetime_capture_r…
4af8013 
…ules_2024, r=TaKO8Ki

Implement 2024-edition lifetime capture rules RFC

Implements rust-lang/rfcs#3498.
@compiler-errors compiler-errors mentioned this pull request Dec 5, 2023
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@bors r-

@bors bors added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Dec 5, 2023
@rust-cloud-vms rust-cloud-vms bot force-pushed the lifetime_capture_rules_2024 branch from 52143ff to 803772e Compare December 5, 2023 19:54
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@compiler-errors is the S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. status here accurate?

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woops no, just forgot to re-approve

@bors r=TaKO8Ki

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bors commented Dec 10, 2023

📌 Commit 803772e has been approved by TaKO8Ki

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-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Dec 10, 2023
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bors commented Dec 10, 2023

⌛ Testing commit 803772e with merge b906831...

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bors commented Dec 10, 2023

☀️ Test successful - checks-actions
Approved by: TaKO8Ki
Pushing b906831 to master...

@bors bors added the merged-by-bors This PR was explicitly merged by bors. label Dec 10, 2023
@bors bors merged commit b906831 into rust-lang:master Dec 10, 2023
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@rustbot rustbot added this to the 1.76.0 milestone Dec 10, 2023
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Finished benchmarking commit (b906831): comparison URL.

Overall result: no relevant changes - no action needed

@rustbot label: -perf-regression

Instruction count

This benchmark run did not return any relevant results for this metric.

Max RSS (memory usage)

This benchmark run did not return any relevant results for this metric.

Cycles

This benchmark run did not return any relevant results for this metric.

Binary size

This benchmark run did not return any relevant results for this metric.

Bootstrap: 668.664s -> 668.148s (-0.08%)
Artifact size: 314.16 MiB -> 314.08 MiB (-0.03%)

celinval added a commit to celinval/rust-dev that referenced this pull request Jun 4, 2024
@github-actions @celinval
Automatic toolchain upgrade to nightly-2023-12-11 (rust-lang#2932)
813d012 
Update Rust toolchain from nightly-2023-12-10 to nightly-2023-12-11
without any other source changes.
This is an automatically generated pull request. If any of the CI checks
fail, manual intervention is required. In such a case, review the
changes at https://github.com/rust-lang/rust from
rust-lang@06e02d5
up to
rust-lang@d86d65b.
The log for this commit range is:
rust-lang@d86d65bbc1 Auto merge of
rust-lang#118368 - GuillaumeGomez:env-flag, r=Nilstrieb
rust-lang@ec4176167b Auto merge of
rust-lang#118703 - Kobzol:bootstrap-config-unused, r=onur-ozkan
rust-lang@f1c5558edc Add ChangeInfo
record
rust-lang@ccbd88dc83 Remove unused
run_dsymutil and gpg_password_file config values
rust-lang@6badc0d840 Destructure TOML
configs
rust-lang@7e452c123c Auto merge of
rust-lang#118791 - saethlin:use-immediate-type, r=nikic
rust-lang@b9068315db Auto merge of
rust-lang#116952 - compiler-errors:lifetime_capture_rules_2024, r=TaKO8Ki
rust-lang@befd1eb4ec Auto merge of
rust-lang#116278 - Kobzol:bootstrap-lld-mode, r=albertlarsan68,petrochenkov
rust-lang@dc2f77aad6 Add (unstable)
documentation for `--env` command line option
rust-lang@d2b1f94f05 Add feature gate
test for `--env` flag
rust-lang@37d68093da Add ui tests for
`--env` option
rust-lang@486e55e547 Implement `--env`
compiler flag
rust-lang@53031b264e Review fixes
rust-lang@84f6130fe3 Auto merge of
rust-lang#118692 - surechen:remove_unused_imports, r=petrochenkov
rust-lang@4750e9de47 Produce an explicit
error when using a self-contained lld, but we don't add it to sysroot
rust-lang@ea769dbeb7 Add change tracker
entry
rust-lang@cbfe6327a1 Do not invoke
external lld to figure out thread flags in self-contained mode
rust-lang@50865745e1 Update
`config.example.toml`
rust-lang@40c3d351ad Use MCP510
rust-lang@48c1607bc6 Introduce `LldMode`
and generalize parsing of `use-lld`
rust-lang@d9f9e67bc1 Refactor rust(do)c
linker flags
rust-lang@b3c9ffdc77 Add `is_msvc`
function
rust-lang@c1a3919378 Auto merge of
rust-lang#118792 - naglis:fix-mutex-doc-typo, r=workingjubilee
rust-lang@42dfac5e08 Auto merge of
rust-lang#118788 - compiler-errors:const-pretty, r=fee1-dead
rust-lang@61afc9c928 Auto merge of
rust-lang#116949 - hamza1311:stablize-arc_unwrap_or_clone, r=dtolnay
rust-lang@c71c246876 Auto merge of
rust-lang#118550 - cjgillot:filecheck-const-prop, r=Mark-Simulacrum
rust-lang@40ae34194c remove redundant
imports
rust-lang@f7253f2317 Auto merge of
rust-lang#118787 - GuillaumeGomez:rollup-fj5wr3q, r=GuillaumeGomez
rust-lang@7d50a39763 Fix typo in
`std::sync::Mutex` example
rust-lang@8cd8d31369 Auto merge of
rust-lang#118069 - onur-ozkan:bypass_bootstrap_lock, r=Mark-Simulacrum
rust-lang@b0a580112b Use
immediate_backend_type when reading from a const alloc
rust-lang@afa35e90ef Print constness in
TraitPredPrintModifiersAndPath
rust-lang@7467c3a45c
s/const_effect/host_effect
rust-lang@f1bf874fb1 Don't print host
effect param in pretty path_generic_args
rust-lang@6860654d82 allow bypassing the
build directory lock
rust-lang@dd234696ed Rollup merge of
rust-lang#118782 - jyn514:powershell, r=ChrisDenton
rust-lang@034d73d6d7 Rollup merge of
rust-lang#118775 - Young-Flash:fix, r=compiler-errors
rust-lang@5b9e917b64 Rollup merge of
rust-lang#118774 - lcnr:region-refactor-uwu, r=compiler-errors
rust-lang@cc821d3ae6 Rollup merge of
rust-lang#118747 - Urgau:check-cfg-freebsd-cleanup, r=onur-ozkan
rust-lang@83e814f88c Rollup merge of
rust-lang#117966 - lxy19980601:safe_compilation_options, r=Mark-Simulacrum
rust-lang@2cf54e9f99 use `&` instead of
start-process in x.ps1
rust-lang@ef796db5f0 add test for
inductive cycle hangs
rust-lang@cb6984217f chore: add test case
for type with generic
rust-lang@0f40b6545d Remove extra
check-cfg handled by libc directly
rust-lang@803772e81d Enable new capture
rules by default on edition 2024
rust-lang@acba7efe1b Add test for
implicitly capturing late-bound var with new capture rules
rust-lang@0ad160a585 Add
lifetime_capture_rules_2024
rust-lang@3f8487a099 Add safe compilation
options
rust-lang@30a95b7c0a FileCheck
while_let_loops.
rust-lang@c00068e49f FileCheck
tuple_literal_propagation.
rust-lang@87522d0007 FileCheck
return_place.
rust-lang@a12027e128 FileCheck
switch_int.
rust-lang@19767eb7a6 FileCheck slice_len.
rust-lang@3e90c1b434 FileCheck
scalar_literal_propagation.
rust-lang@f3743aec51 FileCheck repeat.
rust-lang@343ef6a9cb FileCheck
reify_fn_ptr.
rust-lang@6baec3ccc2 FileCheck ref_deref.
rust-lang@c8c9207e4c FileCheck
read_immutable_static.
rust-lang@45dd5d6bf3 FileCheck
mutable_variable_unprop_assign.
rust-lang@6a8eea8f5b FileCheck
mutable_variable_aggregate_partial_read.
rust-lang@d91bb5074e FileCheck
mutable_variable_no_prop.
rust-lang@3e169abc1b FileCheck
mutable_variable_aggregate_mut_ref.
rust-lang@03c5ad1549 FileCheck
mutable_variable_aggregate.
rust-lang@ea9f968333 FileCheck
mutable_variable.
rust-lang@902a3e2e75 FileCheck
mult_by_zero.
rust-lang@8e9b912c4c FileCheck
issue_67019.
rust-lang@ce9b1e23a5 FileCheck
issue_66971.
rust-lang@218d8ccf43 FileCheck
inherit_overflow.
rust-lang@6086dd6766 FileCheck indirect.
rust-lang@bf5d114da8 FileCheck
discriminant.
rust-lang@043d29b58a FileCheck and rename
const_prop_fails_gracefully.
rust-lang@7f328d2a44 FileCheck
checked_add.
rust-lang@e6a1b77cd1 FileCheck cast.
rust-lang@b8f2f63931 FileCheck boxes.
rust-lang@3fc03948a8 FileCheck
boolean_identities.
rust-lang@e8e35c8127 FileCheck
bad_op_unsafe_oob_for_slices.
rust-lang@97f03cb898 FileCheck
bad_op_mod_by_zero.
rust-lang@0d5bc872a9 FileCheck
bad_op_div_by_zero.
rust-lang@9f01d9d1b6 FileCheck
array_index.
rust-lang@6564bac532 FileCheck aggregate.
rust-lang@378abbc604 FileCheck
address_of_pair.
rust-lang@540921e468 Stablize
arc_unwrap_or_clone

Co-authored-by: celinval <celinval@users.noreply.github.com>
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