Rollup of 19 pull requests
Successful merges:
- #55011 (Add libstd Cargo feature "panic_immediate_abort")
- #55821 (Use sort_by_cached_key when the key function is not trivial/free)
- #56014 (add test for issue #21335)
- #56131 (Assorted tweaks)
- #56214 (Implement chalk unification routines)
- #56216 (Add TryFrom<&[T]> for [T; $N] where T: Copy)
- #56268 (Reuse the `P` in `InvocationCollector::fold_{,opt_}expr`.)
- #56324 (Use raw_entry for more efficient interning)
- #56336 (Clean up and streamline the pretty-printer)
- #56337 (Fix const_fn ICE with non-const function pointer)
- #56339 (Remove not used option)
- #56341 (Rename conversion util; remove duplicate util in librustc_codegen_llvm.)
- #56349 (rustc 1.30.0's linker flavor inference is a non-backwards compat change to -Clinker)
- #56355 (Add inline attributes and add unit to CommonTypes)
- #56360 (Optimize local linkchecker program)
- #56364 (Fix panic with outlives in existential type)
- #56365 (Stabilize self_struct_ctor feature.)
- #56367 (Moved some feature gate tests to correct location)
- #56373 (Update books)
Implement chalk unification routines
`ResolventOps` and `AggregateOps` are mostly straightforwardly translated from chalk. I had caught a few bugs already in my `chalk` branch and backported fixes to this branch, but there may be other ones left. EDIT: I hope there are none left now :)
Fixes#54935.
Add libstd Cargo feature "panic_immediate_abort"
It stop asserts and panics from libstd to automatically
include string output and formatting code.
Use case: developing static executables smaller than 50 kilobytes,
where usual formatting code is excessive while keeping debuggability
in debug mode.
May resolve#54981.
Update books
This pulls in @Gankro 's final nomicon changes, and adds the edition guide as a submodule.
This is the final doc backport to beta for 1.31, as well.
Moved some feature gate tests to correct location
I evidently need to create some sort of GitHub monitor tool that yells at people when they do this in their PRs. ;-)
r? @centril
Fix panic with outlives in existential type
Don't panic in determining the privacy of a type if a lifetime outlives
generic exists in an existential type.
r? @oli-obk
Fixes: #55903
Optimize local linkchecker program
I noticed on a [recent build][1] that the linkchecker stage of CI took a
whopping 15 minutes of CI time for something that should be near
instantaneous. Some local profiling showed some very hot functions and
clones which were pretty easy to remove, and now instead of running in
minutes locally it runs in seconds.
[1]: https://ci.appveyor.com/project/rust-lang/rust/build/job/kptifw1kb1nm4xuu
rustc 1.30.0's linker flavor inference is a non-backwards compat change to -Clinker
Part of #55396.
This commit modifies linker flavor inference to only remove the extension
to the linker when performing inference if that extension is a 'exe'.
r? @nagisa
cc @alexcrichton @japaric
Reuse the `P` in `InvocationCollector::fold_{,opt_}expr`.
This requires adding a new method, `P::filter_map`.
This commit reduces instruction counts for various benchmarks by up to
0.7%.
Add TryFrom<&[T]> for [T; $N] where T: Copy
`TryFrom<&[T]> for &[T; $N]` (note *reference* to an array) already exists, but not needing to dereference makes type inference easier for example when using `u32::from_be_bytes`.
Also add doc examples doing just that.
Assorted tweaks
- preallocate `VecDeque` in `Decodable::decode` (as it is done with other collections which can do it)
- add a FIXME to `String::from_utf16`
r? @RalfJung
Use sort_by_cached_key when the key function is not trivial/free
I'm not 100% sure about `def_path_hash` (everything it does is inlined) but it seems like a good idea at least for the rest, as they are cloning.
