- Expand the first paragraph
- Improve readability by partitioning the chapter into the following
sections: "Patterns", "Type annotations", "Mutability", and
"Initializing bindings"
- Add "Scope and shadowing" section (fix#28177)
r? @steveklabnik
Currently the compiler supports the ability to emit multiple output types as
part of one compilation (e.g. asm, LLVM IR, bytecode, link, dep-info, etc). It
does not, however, support the ability to customize the output filename for each
of these output types. The `-o` flag is ignored if multiple emit types are
specified (and the compiler emits a warning about this).
Normally this doesn't matter too much, but in the case of `dep-info` it can lead
to a number of problems (e.g. see #28716). By allowing customization of the
output filename for each emit type we're able to solve the problems in that
issue.
This commit adds support for the `--emit` option to the compiler to look like:
rustc foo.rs --emit dep-info=.deps/foo.d,link
This indicates that the `dep-info` output type will be placed at `.deps/foo.d`
and the `link` output type will otherwise be determined via the `--out-dir` and
`-o` flags.
Closes#28716
We don't completely cover documentation tests in the testing chapter,
since we cover them in the documentation chapter. So make sure people
know that.
Fixes#28082
- Expand the first paragraph
- Improve readability by partitioning the chapter into the following
sections: "Patterns", "Type annotations", "Mutability", and
"Initializing bindings"
- Add "Scope and shadowing" section (fix#28177)
r? @steveklabnik
The original blog post referred to examples by their file names, and now
that it's in guide form, there is no file name. So edit the text so that
it makes a bit more sense.
Fixes#28428
The links in the rustdoc for several places in fmt were trying to link to
the std::fmt module but actually linking to std, which was confusing.
While trying to figure out why I noticed that the documentation chapter of
the Rust book has examples that show this same bug (although it doesn't seem
widespread in practice).
This is part of #28572, but doesn't complete it. Amongst other things,
this patch:
* Increases consistency in the way feature flags are used with other
docs.
* Removes the ignores, which is nice: we actually had some syntax errors
in the examples 😭.
* Mentions #![no_core]
Realistically, this document used to be in the order of least to most:
nothing, then adding core. But with the changes in RFC 1184, this is
backwards: it now shows stuff that uses core from the beginning. In the
future, I'd like to revamp this to go from 'most to least', but I'd like
to see the discussion in https://github.com/rust-lang/rust/issues/27701
goes before I write more.
Travis CI has new infrastructure using the Google Compute Engine which has both
faster CPUs and more memory, and we've been encouraged to switch as it should
help our build times! The only downside currently, however, is that IPv6 is
disabled, causing a number of standard library tests to fail.
Consequently this commit tweaks our travis config in a few ways:
* ccache is disabled as it's not working on GCE just yet
* Docker is used to run tests inside which reportedly will get IPv6 working
* A system LLVM installation is used instead of building LLVM itself. This is
primarily done to reduce build times, but we want automation for this sort of
behavior anyway and we can extend this in the future with building from source
as well if needed.
* gcc-specific logic is removed as the docker image for Ubuntu gives us a
recent-enough gcc by default.
- Expand the first paragraph
- Improve readability by partitioning the chapter into the following
sections: "Patterns", "Type annotations", "Mutability", and
"Initializing bindings"
- Add "Scope and shadowing" section (fix#28177)
Travis CI has new infrastructure using the Google Compute Engine which has both
faster CPUs and more memory, and we've been encouraged to switch as it should
help our build times! The only downside currently, however, is that IPv6 is
disabled, causing a number of standard library tests to fail.
Consequently this commit tweaks our travis config in a few ways:
* ccache is disabled as it's not working on GCE just yet
* Docker is used to run tests inside which reportedly will get IPv6 working
* A system LLVM installation is used instead of building LLVM itself. This is
primarily done to reduce build times, but we want automation for this sort of
behavior anyway and we can extend this in the future with building from source
as well if needed.
* gcc-specific logic is removed as the docker image for Ubuntu gives us a
recent-enough gcc by default.
This prevents ICEs when old crates are used with a new version of
rustc. Currently, the linking of crates compiled with different
versions of rustc is completely unsupported.
Fixes#28700
r? @nrc
Some minor parts of AST and HIR were not visited by the `visit::walk_xxx` methods - some identifiers, lifetimes, loop labels, attributes of exported macros - but nothing as serious as in, for example, https://github.com/rust-lang/rust/pull/28364.
\+ Added a convenience macro for visiting lists (including Options)
\+ Removed some pre-Deref-coersions `&**` noise from visitors
r? @nrc
I just removed the num_cpus dependency (because we don't want that in there), using 4 threads instead.
I should add that Veedrac asked me to submit this here in his name.
This prevents ICEs when old crates are used with a new version of
rustc. Currently, the linking of crates compiled with different
versions of rustc is completely unsupported.
Fixes#28700
Especially when documenting the use of `0`, since zero looks very
similar to `O` in fonts not meant for displaying code.
Other literal characters, traits, etc should also use code formatting.
This change makes this documentation more internally consistent.
Before this change, circled is the character I was using this documentation to find out about and that confused me when it wasn't immediately clear what character it was:
<img width="1013" alt="screen shot 2015-09-28 at 10 13 31 pm" src="https://cloud.githubusercontent.com/assets/193874/10154708/c70815fe-6638-11e5-9acc-57c73a524203.png">
After this change:
<img width="981" alt="screen shot 2015-09-28 at 11 26 35 pm" src="https://cloud.githubusercontent.com/assets/193874/10154710/ce73eeb2-6638-11e5-98f7-902f58679316.png">
I ran `make check-docs` and didn't break anything ⭐
Especially when documenting the use of `0`, since zero looks very
similar to `O` in fonts not meant for displaying code.
Other literal characters, traits, etc should also use code formatting.
This change makes this documentation more internally consistent.
