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Rollup of 15 pull requests - #64159
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This returns whether a `Place` references the same region of memory as its base, or equivalently whether it contains a `Deref` projection. This is helpful for analyses that must track state for locals, since an assignment to `x` or `x.field` is fundamentally different than one to `*x`, which may mutate any memory region.
Because of a compiler bug that adding `Self: ExactSizeIterator` makes the compiler forget `Self::Item` is `<I as Iterator>::Item`, we remove this specialization for now.
* Make it clear that type erasure is required, not just pointer indirection. * Don't make the message specific to direct recursion.
This prevents mutual `async fn` recursion
It's a hot enough path that moving it slightly earlier gives a tiny but easy speedup.
These links are rendered in `core::cmp` but not in `std::cmp`.
…, r=Mark-Simulacrum Stabilize checked_duration_since for 1.38.0 Looks like it has already found some use in projects. Resolvesrust-lang#58402.
Rev::rposition counts from the wrong end Introduced in rust-lang#43074. cc @SimonSapin
…lexcrichton Stabilize pin_into_inner in 1.39.0 FCP: rust-lang#60245 (comment)Closesrust-lang#60245
Add a `Place::is_indirect` method to determine whether a `Place` contains a `Deref` projection Working on rust-lang#63860 requires tracking some property about each local. This requires differentiating `Place`s like `x` and `x.field[index]` from ones like `*x` and `*x.field`, since the first two will always access the same region of memory as `x` while the latter two may access any region of memory. This functionality is duplicated in various places across the compiler. This PR adds a helper method to `Place` which determines whether that `Place` has a `Deref` projection at any point and changes some existing code to use the new method. I've not converted `qualify_consts.rs` to use the new method, since it's not a trivial conversion and it will get replaced anyway by rust-lang#63860. There may be other potential uses besides the two I change in this PR. r? @oli-obk
… r=nikomatsakis Harden `param_attrs` test wrt. usage of a proc macro `#[attr]` The `param-attrs-builtin-attrs.rs` test file uses the `#[test]` attribute which should cover this but `#[test]` isn't a proc macro attribute so we add another test to be on the safe side. This intends to address rust-lang#64010 (comment). r? @nikomatsakis cc @c410-f3r@petrochenkov cc rust-lang#60406
…t-recursion, r=varkor Check impl trait substs when checking for recursive types closesrust-lang#64004
…ts, r=alexcrichton Add some more tests for underscore imports
…rustc-book-1.37, r=alexcrichton Update xLTO compatibility table in rustc book. This is a combination known to work reliable when building Firefox on all the major platforms. r? @alexcrichton
Refer to "`self` type" instead of "receiver type" Fixrust-lang#42603.
…er, r=petrochenkov Move path parsing earlier It's a hot enough path that moving it slightly earlier gives a tiny but easy speedup. r? @petrochenkov
…ut_uninit_integers, r=Centril Added warning around code with reference to uninit bytes Officially, uninitialized integers, and therefore, Rust references to them are _invalid_ (note that this may evolve into official defined behavior (_c.f._, rust-lang/unsafe-code-guidelines#71)). However, `::std` uses references to uninitialized integers when working with the `Read::initializer` feature (rust-lang#42788), since it relies on this unstably having defined behavior with the current implementation of the compiler (IIUC). Hence the comment to disincentivize people from using this pattern outside the standard library.
unused_parens: account for or-patterns and `&(mut x)` Fixesrust-lang#55342. Fixesrust-lang#64106. cc rust-lang#54883 cc rust-lang#64111 r? @oli-obk
Fix doc links in `std::cmp` module r? @jonas-schievink
fix a few typos in comments
…ramertj Opaque type locations in error message for clarity. Attempts to fixrust-lang#63167
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Successful merges:
Place::is_indirectmethod to determine whether aPlacecontains aDerefprojection #64005 (Add aPlace::is_indirectmethod to determine whether aPlacecontains aDerefprojection)param_attrstest wrt. usage of a proc macro#[attr]#64031 (Hardenparam_attrstest wrt. usage of a proc macro#[attr])selftype" instead of "receiver type" #64110 (Refer to "selftype" instead of "receiver type")&(mut x)#64128 (unused_parens: account for or-patterns and&(mut x))std::cmpmodule #64142 (Fix doc links instd::cmpmodule)Failed merges:
r? @ghost