Rollup of 8 pull requests #101152
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Rollup of 8 pull requests #101152
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We have `File::create` for creating a file or opening an existing file, but the secure way to guarantee creating a new file requires a longhand invocation via `OpenOptions`. Add `File::create_new` to handle this case, to make it easier for people to do secure file creation.
...replacing `.cast().wrapping_offset().cast()` & similar code.
Signed-off-by: Alex Saveau <saveau.alexandre@gmail.com>
Add MaybeUninit memset test Closes rust-lang#96274
Add a `File::create_new` constructor We have `File::create` for creating a file or opening an existing file, but the secure way to guarantee creating a new file requires a longhand invocation via `OpenOptions`. Add `File::create_new` to handle this case, to make it easier for people to do secure file creation.
…r-errors Remove separate indexing of early-bound regions ~Based on rust-lang#99728 This PR copies some modifications from rust-lang#97839 around object lifetime defaults. These modifications allow to stop counting generic parameters during lifetime resolution, and rely on the indexing given by `rustc_typeck::collect`.
remove an ineffective check in const_prop Based on rust-lang#100043, only the last two commits are new. ConstProp has a special check when reading from a local that prevents reading uninit locals. However, if that local flows into `force_allocation`, then no check fires and evaluation proceeds. So this check is not really effective at preventing accesses to uninit locals. With rust-lang#100043, `read_immediate` and friends always fail when reading uninit locals, so I don't see why ConstProp would need a separate check. Thus I propose we remove it. This is needed to be able to do rust-lang#100085.
…g, r=JohnTitor Stabilize `std::io::read_to_string` Closes rust-lang#80218. 🎉 This PR stabilizes the `std::io::read_to_string` function, with the following public API: ```rust pub fn read_to_string<R: Read>(reader: R) -> Result<String>; ``` It's analogous to `std::fs::read_to_string` for files, but it works on anything that implements `io::Read`, including `io::stdin()`. See the tracking issue (rust-lang#80218) or documentation for details.
… r=scottmcm
Make use of `[wrapping_]byte_{add,sub}`
These new methods trivially replace old `.cast().wrapping_offset().cast()` & similar code.
Note that [`arith_offset`](https://doc.rust-lang.org/std/intrinsics/fn.arith_offset.html) and `wrapping_offset` are the same thing.
r? ``@scottmcm``
_split off from #100746_
…ark-Simulacrum Remove a panicking branch from `fmt::builders::PadAdapter`
Separate CountIsStar from CountIsParam in rustc_parse_format.
`rustc_parse_format`'s parser would result in the exact same output for `{:.*}` and `{:.0$}`, making it hard for diagnostics to handle these cases properly.
This splits those cases by adding a new `CountIsStar` enum variant.
This fixes rust-lang#100995
Prerequisite for rust-lang#100996
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☀️ Test successful - checks-actions |
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Successful merges:
File::create_newconstructor #98801 (Add aFile::create_newconstructor)std::io::read_to_string#100337 (Stabilizestd::io::read_to_string)[wrapping_]byte_{add,sub}#100819 (Make use of[wrapping_]byte_{add,sub})fmt::builders::PadAdapter#100934 (Remove a panicking branch fromfmt::builders::PadAdapter)Failed merges:
r? @ghost
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