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rustc_resolve: record single-segment extern crate import resolutions.
Fixes #52489 by recording special-cased single-segment imports for later (e.g. stability) checks.
cc @alexcrichton @Mark-Simulacrum @petrochenkov
Does this need to be backported?
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Previously linker diagnostic were being hidden when two modules were linked
together but failed to link. This commit fixes the situation by ensuring that we
have a diagnostic handler installed and also adds support for handling linker
diagnostics.
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This commit updates one of the edition lints to only suggest deleting `extern
crate` if it actually works. Otherwise this can yield some confusing behavior
with rustfix specifically where if you accidentally deny the `rust_2018_idioms`
lint in the 2015 edition it's suggesting features that don't work!
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It's subsumed by `feature(use_extern_macros)` and `pub use`
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Followup for #46112.
Sorting by crate-num should ensure that we favor `std::foo::bar` over
`any_other_crate::foo::bar`.
Interestingly, *this* change had a much larger impact on our internal
test suite than PR #46708 (which was my original fix to #46112).
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Sorting by crate-num should ensure that we favor `std::foo::bar` over
`any_other_crate::foo::bar`.
Interestingly, *this* change had a much larger impact on our internal
test suite than PR #46708 (which was my original fix to #46112).
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Renames only in this commit, and obviously
.stderr file additions.
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This commit allocates a builder to running wasm32 tests on Travis. Not all test
suites pass right now so this is starting out with just the run-pass and the
libcore test suites. This'll hopefully give us a pretty broad set of coverage
for integration in rustc itself as well as a somewhat broad coverage of the llvm
backend itself through integration/unit tests.
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rustc: add item name to deprecated lint warning
It can sometimes be difficult to know what is actually deprecated when you have `foo.bar()` and `bar` comes from a trait in another crate.
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remove associated_consts feature gate
Currently struggling to run tests locally (something about jemalloc target missing).
cc #29646
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Fix regressions after rebase
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Cleanup checking of inherent static methods and fix checking of inherent associated constants
Add more tests
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This PR is an implementation of [RFC 1974] which specifies a new method of
defining a global allocator for a program. This obsoletes the old
`#![allocator]` attribute and also removes support for it.
[RFC 1974]: https://github.com/rust-lang/rfcs/pull/197
The new `#[global_allocator]` attribute solves many issues encountered with the
`#![allocator]` attribute such as composition and restrictions on the crate
graph itself. The compiler now has much more control over the ABI of the
allocator and how it's implemented, allowing much more freedom in terms of how
this feature is implemented.
cc #27389
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This commit integrates the `jobserver` crate into the compiler. The crate was
previously integrated in to Cargo as part of rust-lang/cargo#4110. The purpose
here is to two-fold:
* Primarily the compiler can cooperate with Cargo on parallelism. When you run
`cargo build -j4` then this'll make sure that the entire build process between
Cargo/rustc won't use more than 4 cores, whereas today you'd get 4 rustc
instances which may all try to spawn lots of threads.
* Secondarily rustc/Cargo can now integrate with a foreign GNU `make` jobserver.
This means that if you call cargo/rustc from `make` or another
jobserver-compatible implementation it'll use foreign parallelism settings
instead of creating new ones locally.
As the number of parallel codegen instances in the compiler continues to grow
over time with the advent of incremental compilation it's expected that this'll
become more of a problem, so this is intended to nip concurrent concerns in the
bud by having all the tools to cooperate!
Note that while rustc has support for itself creating a jobserver it's far more
likely that rustc will always use the jobserver configured by Cargo. Cargo today
will now set a jobserver unconditionally for rustc to use.
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Fixes #41549.
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Test copied from src/test/run-pass/thread-local-extern-static.rs.
Refs: https://github.com/rust-lang/rust/issues/39059
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