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67 Commits

Author SHA1 Message Date
Oli Scherer
a9a79f657c
Completely remove ConstnessAnd 2021-11-29 21:19:49 +08:00
Oli Scherer
e37947f097
Re-use constness_for_typeck instead of rolling it ourselves 2021-11-29 21:19:46 +08:00
Oli Scherer
721ffd14c3
Add constness to ParamEnv 
This now causes a lot of queries to be executed twice, as reveal_all forces NotConst
 2021-11-29 21:19:46 +08:00
Jakob Degen
746091c610 Recurse through query system when checking ADT drop types, hopefully improving perf 2021-11-13 14:47:17 -05:00
bstrie
ce1143e94d impl Copy/Clone for arrays in std, not in compiler 2021-11-08 13:11:58 -05:00
bors
85c0558d03 Auto merge of #90218 - JakobDegen:adt_significant_drop_fix, r=nikomatsakis 
Fixes incorrect handling of ADT's drop requirements

Fixes #90024 and a bunch of duplicates.

The main issue was just that the contract of `NeedsDropTypes::adt_components` was inconsistent; the list of types it might return were the generic parameters themselves or the fields of the ADT, depending on the nature of the drop impl. This meant that the caller could not determine whether a `.subst()` call was still needed on those types; it called `.subst()` in all cases, and this led to ICEs when the returned types were the generic params.

First contribution of more than a few lines, so feedback definitely appreciated.
 2021-10-28 16:03:13 +00:00
Jakob Degen
aff37f8f7b Clean up debug statements in needs_drop 2021-10-25 20:45:46 -04:00
b-naber
c6b69017e2 expose default substs in param_env 2021-10-25 16:04:57 +02:00
Jakob Degen
9158fc2071 Fixes incorrect handling of ADT's drop requirements 
See https://github.com/rust-lang/rust/issues/90024#issuecomment-950105433
 2021-10-23 06:47:17 -04:00
Camille GILLOT
6e98688e68 Replace FnLikeNode by FnKind. 2021-10-19 23:31:51 +02:00
bjorn3
83ddedf170 Remove various unused feature gates 2021-10-02 19:09:18 +02:00
bors
05044c2e6c Auto merge of #89144 - sexxi-goose:insig_stdlib, r=nikomatsakis 
2229: Mark insignificant dtor in stdlib

I looked at all public [stdlib Drop implementations](https://doc.rust-lang.org/stable/std/ops/trait.Drop.html#implementors) and categorized them into Insigificant/Maybe/Significant Drop.

Reasons are noted here: https://docs.google.com/spreadsheets/d/19edb9r5lo2UqMrCOVjV0fwcSdS-R7qvKNL76q7tO8VA/edit#gid=1838773501

One thing missing from this PR is tagging HashMap as insigificant destructor as that needs some discussion.

r? `@Mark-Simulacrum`

cc `@nikomatsakis`
 2021-09-26 19:36:00 +00:00
Aman Arora
994793faab PR fixup 2021-09-22 05:17:30 -04:00
Aman Arora
d2cbe21756 Handle type params in insig dtors 2021-09-21 05:06:19 -04:00
Aman Arora
95cfbe43d2 2229: Early exit when we see an insigificant drop 2021-09-21 04:06:00 -04:00
Camille GILLOT
d7795d302a Do not store visibility in *ItemRef. 2021-09-20 00:29:53 +02:00
Deadbeef
82117289f2
Remove the queries 2021-09-09 05:21:32 +00:00
Deadbeef
a13b13ff46
Const drop selection candidates 2021-09-09 05:21:31 +00:00
Deadbeef
104e40fb74
Const dropping 2021-09-09 05:21:29 +00:00
bors
d5cd3205fd Auto merge of #88371 - Manishearth:rollup-pkkjsme, r=Manishearth 
Rollup of 11 pull requests

Successful merges:

 - #87832 (Fix debugger stepping behavior with `match` expressions)
 - #88123 (Make spans for tuple patterns in E0023 more precise)
 - #88215 (Reland #83738: "rustdoc: Don't load all extern crates unconditionally")
 - #88216 (Don't stabilize creation of TryReserveError instances)
 - #88270 (Handle type ascription type ops in NLL HRTB diagnostics)
 - #88289 (Fixes for LLVM change 0f45c16f2caa7c035e5c3edd40af9e0d51ad6ba7)
 - #88320 (type_implements_trait consider obligation failure on overflow)
 - #88332 (Add argument types tait tests)
 - #88340 (Add `c_size_t` and `c_ssize_t` to `std::os::raw`.)
 - #88346 (Revert "Add type of a let tait test impl trait straight in let")
 - #88348 (Add field types tait tests)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
 2021-08-27 01:07:17 +00:00
Manish Goregaokar
8aa46e51df
Rollup merge of #88123 - camelid:tup-pat-precise-spans, r=estebank 
Make spans for tuple patterns in E0023 more precise

As suggested in #86307. Closes #86307.

r? ````@estebank````
 2021-08-26 12:38:06 -07:00
lcnr
cc47998e28 add tcx to fn walk 2021-08-26 11:00:30 +02:00
lcnr
bfaf13af4e make unevaluated const substs optional 2021-08-26 11:00:30 +02:00
lcnr
f4b606fd17 require a tcx for TypeVisitor 2021-08-26 10:54:01 +02:00
Frank Steffahn
bf88b113ea Fix typos “a”→“an” 2021-08-22 15:35:11 +02:00
Noah Lev
0fa3b4f940 Make E0023 spans even more precise 2021-08-21 16:15:09 -07:00
Charles Lew
6b1c52ff25 Fold vtable_trait_upcasting_coercion_new_vptr_slot logic into obligation processing. 2021-08-18 13:00:27 +08:00
Deadbeef
89d190f090
Add impl_constness query 2021-07-10 20:54:49 +08:00
bjorn3
489ad8b8b5 Revert "Revert "Merge CrateDisambiguator into StableCrateId"" 
This reverts commit 8176ab8bc1.
 2021-07-06 11:28:04 +02:00
Aaron Hill
7e5a88a56c
Combine individual limit queries into single limits query 2021-07-04 13:02:51 -05:00
Aaron Hill
ff15b5e2c7
Query-ify global limit attribute handling 2021-07-04 12:33:14 -05:00
Yuki Okushi
58f6cb4557
Simplify visit_region implementation 2021-07-03 02:21:19 +09:00
Yuki Okushi
e28a93365a
Correct visit_region implementation 2021-07-03 01:12:31 +09:00
Yuki Okushi
13e116f1f7
Use BoundVarsCollector for now 2021-07-03 01:12:31 +09:00
Yuki Okushi
242ac57015
Fix const-generics ICE related to binding 2021-07-03 01:12:27 +09:00
Tomasz Miąsko
56219870ee Include terminators in instance size estimate 
For example, drop glue generated for struct below, doesn't have any
statements, only terminators. Previously it received an estimate of 0,
the new estimate is 13 (6+5 drop terminators, +1 resume, +1 return).

struct S {
    a: String,
    b: String,
    c: String,
    d: String,
    e: String,
    f: String,
}

Originally reported in https://github.com/rust-lang/rust/issues/69382#issue-569392141
 2021-07-01 13:31:57 +02:00
bjorn3
8176ab8bc1 Revert "Merge CrateDisambiguator into StableCrateId" 
This reverts commit d0ec85d3fb.
 2021-06-07 10:37:45 +02:00
Camille GILLOT
0e71283495 Restrict access to crate_name. 
Also remove original_crate_name, which had the exact same implementation
 2021-06-02 18:35:32 +02:00
Camille Gillot
0f0f3138cb
Revert "Reduce the amount of untracked state in TyCtxt" 2021-06-01 09:05:22 +02:00
Camille GILLOT
10fb4b2fe5 Restrict access to crate_name. 
Also remove original_crate_name, which had the exact same implementation
 2021-05-30 19:54:04 +02:00
bjorn3
d0ec85d3fb Merge CrateDisambiguator into StableCrateId 2021-05-30 12:51:34 +02:00
Dhruv Jauhar
a7e1cec621 add new attribute rustc_insignificant_dtor and a query to check if a type has a significant drop 2021-05-14 22:57:33 -04:00
Fabian Wolff
98728c2b35 Implement changes suggested by tmiasko and davidtwco 2021-05-10 17:47:50 +02:00
Fabian Wolff
309710dece Fix stack overflow when checking for structural recursion 2021-05-06 22:31:42 +02:00
Camille GILLOT
323f5b2ac9 Split crate_hash from index_hir. 2021-04-29 21:36:48 +02:00
lcnr
b3629d21ba move representability out of rustc_middle 2021-04-27 15:01:37 +02:00
hi-rustin
6c3f5b8535 resolve conflicts 
resolve conflicts
 2021-04-05 22:58:11 +08:00
Jack Huey
30187c81f6 Track bound vars 2021-03-31 10:15:27 -04:00
Nikita Popov
c3f9403f59 Don't consider !Unpin references as noalias 
Such structures may contain self-references, in which case the
same location may be accessible through a pointer that is not
based-on the noalias pointer.

This is still grey area as far as language semantics are concerned,
but checking for !Unpin as an indicator for self-referential
sturctures seems like a good approach for the meantime.
 2021-03-21 20:10:53 +01:00
bors
1fdadbf13a Auto merge of #82159 - BoxyUwU:uwu, r=varkor 
Use correct param_env in conservative_is_privately_uninhabited

cc `@lcnr`
r? `@varkor` since this is your FIXME that was removed ^^
 2021-02-24 21:54:52 +00:00