* Sema: allow binary operations and boolean not on vectors of bool
* langref: Clarify use of operators on vectors (`and` and `or` not allowed)
closes#24093
* trailing whitespace
* langref: undefined _is_ materialized in all safe modes
I am also not super happy about the clause that immediately follows. I
_believe_ what we want to say here is that, simultaneously:
* undefined is guaranteed to be matrerialized in in all safe modes.
A Zig implementation that elides `ptr.* = undefined` in ReleaseSafe
mode would be a non-conforming implementation.
* A Zig program that relies on undefined being materialized is buggy.
But I don't think it's the time to engage this level of language-lawering!
This reverts commit dea72d15da4fba909dc3ccb2e9dc5286372ac023, reversing
changes made to ab381933c87bcc744058d25a876cfdc0d23fc674.
The changeset does not work as advertised and does not have sufficient
test coverage.
Reopens#22822
The previous language using subsets was really just stating a couple
of the properties of the union of a group of sets, and with a minor
error at that.
The compiler actually doesn't need any functional changes for this: Sema
does reification based on the tag indices of `std.builtin.Type` already!
So, no zig1.wasm update is necessary.
This change is necessary to disallow name clashes between fields and
decls on a type, which is a prerequisite of #9938.
std.crypto has quite a few instances of breaking naming conventions.
This is the beginning of an effort to address that.
Deprecates `std.crypto.utils`.
The surrogate code points U+D800 to U+DFFF are valid code points but are not Unicode scalar values. This commit makes the error message more accurately reflect what is actually allowed in `\u` escape sequences.
From https://www.unicode.org/versions/Unicode15.0.0/ch03.pdf:
> D71 High-surrogate code point: A Unicode code point in the range U+D800 to U+DBFF.
> D73 Low-surrogate code point: A Unicode code point in the range U+DC00 to U+DFFF.
>
> 3.9 Unicode Encoding Forms
> D76 Unicode scalar value: Any Unicode code point except high-surrogate and low-surrogate code points.
Related: #20270
