about summary refs log tree commit diff
path: root/compiler/rustc_ty_utils
AgeCommit message (Collapse)AuthorLines
2021-10-02Remove various unused feature gatesbjorn3-2/+0
2021-09-26Auto merge of #89144 - sexxi-goose:insig_stdlib, r=nikomatsakisbors-18/+57
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`
2021-09-22PR fixupAman Arora-7/+16
2021-09-21Auto merge of #89103 - Mark-Simulacrum:migrate-2021, r=estebankbors-1/+1
Migrate in-tree crates to 2021 This replaces #89075 (cherry picking some of the commits from there), and closes #88637 and fixes #89074. It excludes a migration of the library crates for now (see tidy diff) because we have some pending bugs around macro spans to fix there. I instrumented bootstrap during the migration to make sure all crates moved from 2018 to 2021 had the compatibility warnings applied first. Originally, the intent was to support cargo fix --edition within bootstrap, but this proved fairly difficult to pull off. We'd need to architect the check functionality to support running cargo check and cargo fix within the same x.py invocation, and only resetting sysroots on check. Further, it was found that cargo fix doesn't behave too well with "not quite workspaces", such as Clippy which has several crates. Bootstrap runs with --manifest-path ... for all the tools, and this makes cargo fix only attempt migration for that crate. We can't use e.g. --workspace due to needing to maintain sysroots for different phases of compilation appropriately. It is recommended to skip the mass migration of Cargo.toml's to 2021 for review purposes; you can also use `git diff d6cd2c6c877110748296760aefddc21a0ea1d316 -I'^edition = .20...$'` to ignore the edition = 2018/21 lines in the diff.
2021-09-21Handle type params in insig dtorsAman Arora-10/+16
2021-09-212229: Early exit when we see an insigificant dropAman Arora-9/+33
2021-09-20Migrate to 2021Mark Rousskov-1/+1
2021-09-20Do not store visibility in *ItemRef.Camille GILLOT-1/+1
2021-09-09Remove the queriesDeadbeef-75/+13
2021-09-09Const drop selection candidatesDeadbeef-1/+2
2021-09-09Const droppingDeadbeef-11/+76
2021-08-27Auto merge of #88371 - Manishearth:rollup-pkkjsme, r=Manishearthbors-1/+12
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
2021-08-26Rollup merge of #88123 - camelid:tup-pat-precise-spans, r=estebankManish Goregaokar-1/+12
Make spans for tuple patterns in E0023 more precise As suggested in #86307. Closes #86307. r? ````@estebank````
2021-08-26add `tcx` to `fn walk`lcnr-2/+2
2021-08-26make unevaluated const substs optionallcnr-2/+3
2021-08-26require a `tcx` for `TypeVisitor`lcnr-0/+3
2021-08-22Fix typos “a”→“an”Frank Steffahn-2/+2
2021-08-21Make E0023 spans even more preciseNoah Lev-1/+12
2021-08-18Fold `vtable_trait_upcasting_coercion_new_vptr_slot` logic into obligation ↵Charles Lew-1/+2
processing.
2021-07-29rfc3052: Remove authors field from Cargo manifestsJade-1/+0
Since RFC 3052 soft deprecated the authors field anyway, hiding it from crates.io, docs.rs, and making Cargo not add it by default, and it is not generally up to date/useful information, we should remove it from crates in this repo.
2021-07-10Add impl_constness queryDeadbeef-0/+11
2021-07-06Revert "Revert "Merge CrateDisambiguator into StableCrateId""bjorn3-8/+1
This reverts commit 8176ab8bc18fdd7d3c2cf7f720c51166364c33a3.
2021-07-04Combine individual limit queries into single `limits` queryAaron Hill-1/+1
2021-07-04Query-ify global limit attribute handlingAaron Hill-1/+1
2021-07-03Simplify `visit_region` implementationYuki Okushi-13/+4
2021-07-03Correct `visit_region` implementationYuki Okushi-1/+26
2021-07-03Use `BoundVarsCollector` for nowYuki Okushi-9/+92
2021-07-03Fix const-generics ICE related to bindingYuki Okushi-1/+8
2021-07-01Include terminators in instance size estimateTomasz Miąsko-1/+1
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
2021-06-07Revert "Merge CrateDisambiguator into StableCrateId"bjorn3-1/+8
This reverts commit d0ec85d3fb6d322496cb8f4bc1c21e19f23284ad.
2021-06-02Restrict access to crate_name.Camille GILLOT-8/+1
Also remove original_crate_name, which had the exact same implementation
2021-06-01Revert "Reduce the amount of untracked state in TyCtxt"Camille Gillot-1/+8
2021-05-30Restrict access to crate_name.Camille GILLOT-8/+1
Also remove original_crate_name, which had the exact same implementation
2021-05-30Merge CrateDisambiguator into StableCrateIdbjorn3-7/+0
2021-05-14add new attribute rustc_insignificant_dtor and a query to check if a type ↵Dhruv Jauhar-4/+49
has a significant drop
2021-05-10Implement changes suggested by tmiasko and davidtwcoFabian Wolff-43/+42
2021-05-06Fix stack overflow when checking for structural recursionFabian Wolff-17/+199
2021-04-29Split crate_hash from index_hir.Camille GILLOT-6/+0
2021-04-27move `representability` out of `rustc_middle`lcnr-0/+187
2021-04-05resolve conflictshi-rustin-2/+2
resolve conflicts
2021-03-31Track bound varsJack Huey-1/+1
2021-03-21Don't consider !Unpin references as noaliasNikita Popov-1/+11
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.
2021-02-24Auto merge of #82159 - BoxyUwU:uwu, r=varkorbors-0/+60
Use correct param_env in conservative_is_privately_uninhabited cc `@lcnr` r? `@varkor` since this is your FIXME that was removed ^^
2021-02-23yeetEllen-0/+60
2021-02-18Auto merge of #81172 - SimonSapin:ptr-metadata, r=oli-obkbors-1/+2
Implement RFC 2580: Pointer metadata & VTable RFC: https://github.com/rust-lang/rfcs/pull/2580 ~~Before merging this PR:~~ * [x] Wait for the end of the RFC’s [FCP to merge](https://github.com/rust-lang/rfcs/pull/2580#issuecomment-759145278). * [x] Open a tracking issue: https://github.com/rust-lang/rust/issues/81513 * [x] Update `#[unstable]` attributes in the PR with the tracking issue number ---- This PR extends the language with a new lang item for the `Pointee` trait which is special-cased in trait resolution to implement it for all types. Even in generic contexts, parameters can be assumed to implement it without a corresponding bound. For this I mostly imitated what the compiler was already doing for the `DiscriminantKind` trait. I’m very unfamiliar with compiler internals, so careful review is appreciated. This PR also extends the standard library with new unstable APIs in `core::ptr` and `std::ptr`: ```rust pub trait Pointee { /// One of `()`, `usize`, or `DynMetadata<dyn SomeTrait>` type Metadata: Copy + Send + Sync + Ord + Hash + Unpin; } pub trait Thin = Pointee<Metadata = ()>; pub const fn metadata<T: ?Sized>(ptr: *const T) -> <T as Pointee>::Metadata {} pub const fn from_raw_parts<T: ?Sized>(*const (), <T as Pointee>::Metadata) -> *const T {} pub const fn from_raw_parts_mut<T: ?Sized>(*mut (),<T as Pointee>::Metadata) -> *mut T {} impl<T: ?Sized> NonNull<T> { pub const fn from_raw_parts(NonNull<()>, <T as Pointee>::Metadata) -> NonNull<T> {} /// Convenience for `(ptr.cast(), metadata(ptr))` pub const fn to_raw_parts(self) -> (NonNull<()>, <T as Pointee>::Metadata) {} } impl<T: ?Sized> *const T { pub const fn to_raw_parts(self) -> (*const (), <T as Pointee>::Metadata) {} } impl<T: ?Sized> *mut T { pub const fn to_raw_parts(self) -> (*mut (), <T as Pointee>::Metadata) {} } /// `<dyn SomeTrait as Pointee>::Metadata == DynMetadata<dyn SomeTrait>` pub struct DynMetadata<Dyn: ?Sized> { // Private pointer to vtable } impl<Dyn: ?Sized> DynMetadata<Dyn> { pub fn size_of(self) -> usize {} pub fn align_of(self) -> usize {} pub fn layout(self) -> crate::alloc::Layout {} } unsafe impl<Dyn: ?Sized> Send for DynMetadata<Dyn> {} unsafe impl<Dyn: ?Sized> Sync for DynMetadata<Dyn> {} impl<Dyn: ?Sized> Debug for DynMetadata<Dyn> {} impl<Dyn: ?Sized> Unpin for DynMetadata<Dyn> {} impl<Dyn: ?Sized> Copy for DynMetadata<Dyn> {} impl<Dyn: ?Sized> Clone for DynMetadata<Dyn> {} impl<Dyn: ?Sized> Eq for DynMetadata<Dyn> {} impl<Dyn: ?Sized> PartialEq for DynMetadata<Dyn> {} impl<Dyn: ?Sized> Ord for DynMetadata<Dyn> {} impl<Dyn: ?Sized> PartialOrd for DynMetadata<Dyn> {} impl<Dyn: ?Sized> Hash for DynMetadata<Dyn> {} ``` API differences from the RFC, in areas noted as unresolved questions in the RFC: * Module-level functions instead of associated `from_raw_parts` functions on `*const T` and `*mut T`, following the precedent of `null`, `slice_from_raw_parts`, etc. * Added `to_raw_parts`
2021-02-16Auto merge of #81611 - cjgillot:meowner, r=estebankbors-13/+10
Only store a LocalDefId in some HIR nodes Some HIR nodes are guaranteed to be HIR owners: Item, TraitItem, ImplItem, ForeignItem and MacroDef. As a consequence, we do not need to store the `HirId`'s `local_id`, and we can directly store a `LocalDefId`. This allows to avoid a bit of the dance with `tcx.hir().local_def_id` and `tcx.hir().local_def_id_to_hir_id` mappings.
2021-02-15Only store a LocalDefId in hir::ImplItem.Camille GILLOT-7/+5
2021-02-15Only store a LocalDefId in hir::TraitItem.Camille GILLOT-6/+5
2021-02-15Add `ptr::Pointee` trait (for all types) and `ptr::metadata` functionSimon Sapin-1/+2
RFC: https://github.com/rust-lang/rfcs/pull/2580
2021-02-14param_env debugs are instrumental to rustc's successEllen-6/+3
generated by cgit-pink 1.4.1-3-g733a5 (git 2.37.1) at 2026-02-24 12:29:10 +0000