Prior to this commit, debuginfo was always generated by mapping a name
to a Place. This has the side-effect that `SimplifyLocals` cannot remove
locals that are only used for debuginfo because their other uses have
been const-propagated.
To allow these locals to be removed, we now allow debuginfo to point to
a constant value. The `ConstProp` pass detects when debuginfo points to
a local with a known constant value and replaces it with the value. This
allows the later `SimplifyLocals` pass to remove the local.
- This allows us to delay figuring out the index of a capture
in the closure structure when all projections to atleast form
a capture have been applied to the builder
Co-authored-by: Roxane Fruytier <roxane.fruytier@hotmail.com>
- Derive TypeFoldable on `hir::place::Place` and associated
structs, to them to be written into typeck results.
Co-authored-by: Jennifer Wills <wills.jenniferg@gmail.com>
Co-authored-by: Logan Mosier <logmosier@gmail.com>
Update Clippy
Biweekly Clippy update (which I forgot about on Thursday)
This includes a `Cargo.lock` update, so probably needs `rollup=never`.
r? `@Manishearth`
extend `WithOptConstParam` docs, move rustdoc test
This should hopefully make things a bit clearer, feel free to comment on anything which can still be improved.
cc `@ecstatic-morse` `@nikomatsakis` `@RalfJung`
Const parameters can not be inferred with `_` help note
This should close: #79557
# Example output
```
error[E0747]: type provided when a constant was expected
--> inferred_const_note.rs:6:19
|
6 | let a = foo::<_, 2>([0, 1, 2]);
| ^
|
= help: Const parameters can not be inferred with `_`
error: aborting due to previous error
For more information about this error, try `rustc --explain E0747`.
```
r? `@lcnr`
Added a lint-fraction-readability flag to the configuration
This adds an option to disable the `unreadable_literal` lint for floats with a longer fraction. This allows users to write `0.100200300` without getting a warning. Fixes#4176
I have some open questions about this PR:
1. I've named the option `lint-fraction-readability` is this a good name or should I rename it to something else?
2. What should the default configuration value be?
* The current default value is `true` as this was also the previous default.
3. Do I have to document this new option somewhere else or will it be extracted from the code comment?
4. The current fix option will also rewrite the fraction if the integer part violates the `unreadable_literal` lint it would otherwise also trigger the `inconsistent_digit_grouping` lint. Is this also okay?
* `1.100200300` will be unaffected by the fix function
* `100200300.100200300` will be effected and fixed to `100_200_300.100_200_300`
---
The project needed some getting used to but I'm happy with the result. A big thank you to `@flip1995` for giving me some pointers for this implementation and to everyone for the great introduction documentation!
---
changelog: Added the `unreadable-literal-lint-fractions` configuration to disable the `unreadable_literal` lint for fractions
Update RLS and Rustfmt
Fixes#79406Fixes#79407
This does pull 1.4.28 version of Rustfmt. Do you want me to pull the 1.4.29 while we're at it?
r? `@calebcartwright`
Fix incorrect io::Take's limit resulting from io::copy specialization
The specialization introduced in #75272 fails to update `io::Take` wrappers after performing the copy syscalls which bypass those wrappers. The buffer flushing before the copy does update them correctly, but the bytes copied after the initial flush weren't subtracted.
The fix is to subtract the bytes copied from each `Take` in the chain of wrappers, even when an error occurs during the syscall loop. To do so the `CopyResult` enum now has to carry the bytes copied so far in the error case.
The liveness uses a mixed representation of RWUs based on the
observation that most of them have invalid reader and invalid
writer. The packed variant uses 32 bits and unpacked 96 bits.
Unpacked data contains reader live node and writer live node.
Since live nodes are used only to determine their validity,
RWUs can always be stored in a packed form with four bits for
each: reader bit, writer bit, used bit, and one extra padding
bit to simplify packing and unpacking operations.
A slightly clearer diagnostic when misusing const
Fixes#79598
This produces the following diagnostic:
"expected one of `>`, a const expression, lifetime, or type, found keyword `const`"
Instead of the previous, more confusing:
"expected one of `>`, const, lifetime, or type, found keyword `const`"
This might not be completely clear as some users might not understand what a const expression is, but I do believe this is an improvement.
Fix src/test/ui/env-vars.rs on 128-core machines on Windows
On Windows, the environment variable NUMBER_OF_PROCESSORS has special
meaning. Unfortunately, you can get different answers, depending on
whether you are enumerating all environment variables or querying a
specific variable. This was causing the src/test/ui/env-vars.rs test
to fail on machines with more than 64 processors when run on Windows.
check the recursion limit when finding a struct's tail
fixes#79437
This does a `delay_span_bug` (via `ty_error_with_message`) rather than emit a new error message, under the assumption that there will be an error elsewhere (even if the type isn't infinitely recursive, just deeper than the recursion limit, this appears to be the case).
