Check fat pointer metadata compatibility modulo regions
Regions don't really mean anything anyways during hir typeck.
If this `erase_regions` makes anyone nervous, it's probably equally valid to just equate the types using a type relation, but regardless we should _not_ be using strict type equality while region variables are present.
Fixes#103384
Rollup of 6 pull requests
Successful merges:
- #103901 (Add tracking issue for `const_arguments_as_str`)
- #104112 (rustdoc: Add copy to the description of repeat)
- #104435 (`VecDeque::resize` should re-use the buffer in the passed-in element)
- #104467 (Fix substraction with overflow in `wrong_number_of_generic_args.rs`)
- #104608 (Cleanup macro matching recovery)
- #104626 (Fix doctest errors related to rustc_middle)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
Cleanup macro matching recovery
The retry has been implemented already in #104335. Also removes a `HACK` comment that's not really needed anymore because the "don't recover during macro matching" isn't really a hack but correct behavior.
Fix substraction with overflow in `wrong_number_of_generic_args.rs`
Fixes#104287
This issue happens in the `suggest_moving_args_from_assoc_fn_to_trait_for_qualified_path` function, which seems to run before the error checking facilities can catch an invalid use of generic arguments. Thus we get a subtraction with overflow because the code implicitly assumes that the source program makes sense (or is this assumption not true even if the program is correct?).
`VecDeque::resize` should re-use the buffer in the passed-in element
Today it always copies it for *every* appended element, but one of those clones is avoidable.
This adds `iter::repeat_n` (https://github.com/rust-lang/rust/issues/104434) as the primitive needed to do this. If this PR is acceptable, I'll also use this in `Vec` rather than its custom `ExtendElement` type & infrastructure that is harder to share between multiple different containers:
101e1822c3/library/alloc/src/vec/mod.rs (L2479-L2492)
try_normalize_after_erasing_regions: promote an assertion to always run
In https://github.com/rust-lang/miri/issues/2433 this assertion has been seen to trigger, so it might be worth actually checking this? Regressing debug assertions are very easy to miss until much later, and then they become quite hard to debug.
Don't duplicate last cdb debuginfo test command
cdb scripts interpret a blank line to mean "repeat the last command", similar to what happens when running the debugger from a console. The code for compiletest that constructs the debugger script was inserting a blank line between the last command and the "quit" command. This caused the last command to be executed twice. This can cause some confusion since the `-check` lines are expecting the output in a certain order. But printing the last command twice causes that order-assumption to fail, and that can cause confusion.
This fixes it by removing the blank line.
AFAICT, gdb and lldb scripts don't have the same behavior with blank lines (and the gdb code doesn't add any blank lines anyways).
Rarranging the substration and equality check into an addition and an equality
check is sufficient.
Algebra is cool, isn't it?
Co-authored-by: Michael Goulet <michael@errs.io>
* Fix doc examples for Platforms with underaligned integer primitives.
* Mutable pointer doc examples use mutable pointers.
* Fill out tracking issue.
* Minor formatting changes.
Rollup of 10 pull requests
Successful merges:
- #103117 (Use `IsTerminal` in place of `atty`)
- #103969 (Partial support for running UI tests with `download-rustc`)
- #103989 (Fix build of std for thumbv7a-pc-windows-msvc)
- #104076 (fix sysroot issue which appears for ci downloaded rustc)
- #104469 (Make "long type" printing type aware and trim types in E0275)
- #104497 (detect () to avoid redundant <> suggestion for type)
- #104577 (Don't focus on notable trait parent when hiding it)
- #104587 (Update cargo)
- #104593 (Improve spans for RPITIT object-safety errors)
- #104604 (Migrate top buttons style to CSS variables)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
Improve spans for RPITIT object-safety errors
No reason why we can't point at the `impl Trait` that causes the object-safety violation.
Also [drive-by: Add is_async fn to hir::IsAsync](c4165f3a96), which touches clippy too.
Update cargo
3 commits in 16b097879b6f117c8ae698aab054c87f26ff325e..eb5d35917b2395194593c9ca70c3778f60c1573b
2022-11-14 23:28:16 +0000 to 2022-11-17 22:08:43 +0000
- Fix several tests that are waiting 60 seconds for publishing to time out (rust-lang/cargo#11388)
- Implement RFC 3139: alternative registry authentication support (rust-lang/cargo#10592)
- Fix cargo install --index when used with registry.default (rust-lang/cargo#11302)
r? `@ghost`
Don't focus on notable trait parent when hiding it
I clicked on a notable trait icon so the popup remained and then clicked on the settings menu. When the settings menu was blurred, it scrolled back to when the notable trait was, which isn't great.
r? `@notriddle`
Make "long type" printing type aware and trim types in E0275
Instead of simple string cutting, use a custom printer to hide parts of long printed types.
On E0275, check for type length before printing.
