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Summary: Invoking `rev` does not add a trailing newline when none is present in the input (at least on my Debian). Nearby examples use `echo` rather than `rev`, which probably explains the source of the discrepancy. Also, a `mut` qualifier is unused. Test Plan: Copy the code block into <https://play.rust-lang.org> with a `fn main` wrapper, and run it. Note that it compiles and runs cleanly; prior to this commit, it would emit an `unused_mut` warning and then panic. wchargin-branch: stdio-piped-docs
This avoids concurrency-related bugs when locks are acquired for too short a time and similar cases.
That's way more than is needed, and winds up recording types that will never appear in MIR.
Should probably check how this performs, but it's always nicer to track just a bit less mutable state.
Currently, after a CALL terminator is created in MIR, we insert DROP statements for all of its operands -- even though they were just moved shortly before! These spurious drops are later removed, but not before causing borrow check errors. This PR series modifies the drop code to track operands that were moved and avoid creating drops for them. Right now, I'm only using this mechanism for calls, but it seems likely it could be used in more places.
The Windows dist builders are the slowest builders right now, and the distribution phase of them is enormously slow clocking in at around 20 minutes to build all the related installers. This commit starts to optimize these by turning down the compression level in the `exe` installers. These aren't super heavily used so there's no great need for them to be so ultra-compressed, so let's dial back the compression parameters to get closer to the rest of our xz archives. This brings the installer in line with the gz tarball installer locally, and also brings the compression settings on par with the rest of our xz installers.
This is the same as #64615 except applied to our MSI installers. The same fix is applied effectively bringing these installers in line with the gz tarball installers, which are about 3x faster to produce locally and likely much faster to produce on CI.
* Pass `/Q` to `iscc` on Windows to supress the thousands of lines of output about compressing documentation. * Print out what's happening before long steps * Use `timeit` to print out timing information for long-running installer assemblies.
…es, r=eddyb record fewer adjustment types in generator witnesses, avoid spurious drops in MIR construction Don't record all intermediate adjustment types -- That's way more than is needed, and winds up recording types that will never appear in MIR. Note: I'm like 90% sure that this logic is correct, but this stuff is subtle and can be hard to keep straight. However, the risk of this PR is fairly low -- if we miss types here, I believe the most common outcome is an ICE. This fixes the original issue cited by #64477, but I'm leaving the issue open for now since there may be other cases we can detect and improve in a targeted way. r? @Zoxc
This would follow the same coding style as all the other match arms in this file.
Rollup of 9 pull requests Successful merges: - #63907 (Add explanation to type mismatch involving type params and assoc types) - #64615 (rustbuild: Turn down compression on exe installers) - #64617 (rustbuild: Turn down compression on msi installers) - #64618 (rustbuild: Improve output of `dist` step) - #64619 (Fixes #63962. Hint about missing tuple parentheses in patterns) - #64634 (Update to LLVM 9.0.0) - #64635 (Allow using fn pointers in const fn with unleash miri) - #64660 (unify errors for tuple/struct variants) - #64664 (fully remove AstBuilder) Failed merges: r? @ghost
also removed some duplicated logic from TypeRelation methods.
Use span label instead of note in unreachable lint Fix #64636.
Update clippy and rls r? @oli-obk cc @Manishearth
Fix `Stdio::piped` example code and lint Summary: Invoking `rev` does not add a trailing newline when none is present in the input (at least on my Debian). Nearby examples use `echo` rather than `rev`, which probably explains the source of the discrepancy. Also, a `mut` qualifier is unused. Test Plan: Copy the code block into <https://play.rust-lang.org> with a `fn main` wrapper, and run it. Note that it compiles and runs cleanly; prior to this commit, it would emit an `unused_mut` warning and then panic. wchargin-branch: stdio-piped-docs
…henkov Cleanup syntax::ext::build I suspect most of this code could be inlined but I only removed the bits where the inlining didn't really hurt readability (i.e., method call -> function call) or the completely unused code.
…ochenkov Parse assoc type bounds in generic params and provide custom diagnostic Fix #26271.
remove outdated comment
Clarify the "since" tidy check r? @pietroalbini cc @alexreg
Rollup of 7 pull requests Successful merges: - #64294 (Fix `Stdio::piped` example code and lint) - #64670 (Cleanup syntax::ext::build) - #64674 (Propagate `types.err` in locals further to avoid spurious knock-down errors) - #64676 (Parse assoc type bounds in generic params and provide custom diagnostic) - #64677 (remove outdated comment) - #64679 (Infer consts more consistently) - #64688 (Clarify the "since" tidy check) Failed merges: r? @ghost
Refactor librustc_errors::Handler API This should be reviewed by-commit. The last commit moves all fields into an inner struct behind a single lock; this is done to prevent possible deadlocks in a multi-threaded compiler, as well as inconsistent state observation.
n-salim
approved these changes
Sep 23, 2019
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r? @n-salim