rust/library/alloc/src, branch try

Rollup merge of #143909 - nik-rev:patch-1, r=jhpratt

2025-07-18T12:49:19+00:00

docs(alloc::fmt): Make type optional, instead of matching empty string Think this is clearer. Noticed as I was implementing [`tree-sitter-rust-format-args`](https://github.com/nik-rev/tree-sitter-rust-format-args), and attempting to match the empty string results in an error.

Rollup merge of #143595 - fee1-dead-contrib:push-sylpykzkmynr, r=RalfJung,fee1-dead

2025-07-17T01:58:30+00:00

add `const_make_global`; err for `const_allocate` ptrs if didn't call Implements as discussed on Zulip: [#t-compiler/const-eval > const heap](https://rust-lang.zulipchat.com/#narrow/channel/146212-t-compiler.2Fconst-eval/topic/const.20heap/with/527125421) r? ```@rust-lang/wg-const-eval``` Fixes https://github.com/rust-lang/rust/issues/129233

add `const_make_global`; err for `const_allocate` ptrs if didn't call

2025-07-15T16:32:12+00:00

Co-Authored-By: Ralf Jung Co-Authored-By: Oli Scherer

Auto merge of #143877 - xizheyin:143813, r=scottmcm,saethlin

2025-07-15T14:47:10+00:00

`std::vec`: Add UB check for `set_len`, `from_raw_parts_in`, and etc. Closes rust-lang/rust#143813 I noticed that `from_parts_in` do the similar things like `from_raw_parts_in`, so I add the UB check in the last commit. If it is not appropriate, I will remove it. And I fix a typo in the first commit. r? `@scottmcm`

docs(alloc::fmt): Make `type` optional, instead of matching the empty string

2025-07-13T22:24:27+00:00

update issue number for `const_trait_impl`

2025-07-13T15:55:06+00:00

std::vec: Add UB check in `from_parts_in`

2025-07-13T08:18:56+00:00

Signed-off-by: xizheyin

std::vec: Add UB check in `from_raw_parts_in`

2025-07-13T08:17:43+00:00

Signed-off-by: xizheyin

`std::vec`: Upgrade `debug_assert` to UB check in `set_len`

2025-07-13T08:06:53+00:00

Signed-off-by: xizheyin

Fix typo in `std::vec`

2025-07-13T07:51:32+00:00

Signed-off-by: xizheyin