Correct inline assembly clobber formatting.
Fixes the formatting for inline assembly clobbers used in the book.
As this causes llvm to silently ignore the clobber an error is also
added to catch cases in which the wrong formatting was used.
Additionally a test case is added to confirm that this error works.
This fixes#34458
Note: this is only one out of a few possible ways to fix the issue
depending on how the asm! macro formatting is wanted.
Additionally, it'd be nicer to have some kind of test or feedback
from llvm if the clobber constraints are valid, but I do not know
enough about llvm to say if or how this is possible.
The Ninja generator generally builds much faster than make. It may also
be used on Windows to have a vast speed improvement over the Visual
Studio generators.
Currently hidden behind an `--enable-ninja` flag because it does not
obey the top-level `-j` or `-l` flags given to `make`.
Introducing TokenStreams and TokenSlices for procedural macros
This pull request introduces TokenStreams and TokenSlices into the compiler in preparation for usage as part of RFC 1566 (procedural macros).
r? @nrc
The invocation of vcvars is only needed for versions of Visual Studio that
rustbuild or cmake doesn't understand, but if older versions are installed then
there's no need to call vcvars.
Closes#34576
rustbuild: Remove the `build` directory
The organization in rustbuild was a little odd at the moment where the `lib.rs`
was quite small but the binary `main.rs` was much larger. Unfortunately as well
there was a `build/` directory with the implementation of the build system, but
this directory was ignored by GitHub on the file-search prompt which was a
little annoying.
This commit reorganizes rustbuild slightly where all the library files (the
build system) is located directly inside of `src/bootstrap` and all the binaries
now live in `src/bootstrap/bin` (they're small). Hopefully this should allow
GitHub to index and allow navigating all the files while maintaining a
relatively similar layout to the other libraries in `src/`.
When resolving a hostname, pass a hints struct where ai_socktype is
set to SOCK_STREAM in order to eliminate repeated results for each
protocol family.
Add to `resolve`'s public API
This adds a public method `with_module_lexical_scope` to `Resolver` to allow users to resolve a path in the lexical scope of an arbitrary module.
r? @nrc
Fix expansion performance regression
**syntax-[breaking-change] cc #31645**
This fixes#34630 by reverting commit 5bf7970 of PR #33943, which landed in #34424.
By removing the `Rc<_>` wrapping around `Delimited` and `SequenceRepetition` in `TokenTree`, 5bf7970 made cloning `TokenTree`s more expensive. While this had no measurable performance impact on the compiler's crates, it caused an order of magnitude performance regression on some macro-heavy code in the wild. I believe this is due to clones of `TokenTree`s in `macro_parser.rs` and/or `macro_rules.rs`.
r? @nrc
Fix spacing in for loop enumeration example
Add a space between the comma and j in (i, j) to make it look nice.
This addresses my recent issue #34624.
😀
update cargo doc link
updated proper link of cargo doc that contains details about list of options available in semantic versioninig for the dependencies section in Cargo.toml
update documentation of tuple/unit structs
I made the "tuple structs are useless" editorializing a bit weaker and moved it to the end. Feel free to overrule me on that.
I also added an example of how to unpack a tuple struct with dot notation, because it came up on IRC.
`braced_empty_structs` is stable now, so I updated the example for unit-like structs to use that syntax. Should we show both ways?
cc @ubsan
r? @steveklabnik or @GuillaumeGomez
