Closes#12383.
Test suite did not capture this and can't as long as it is in the same module hierarchy. This is probably something that should be addressed in the future.
The comments say that the prelude imports std::io::println since it would
be annoying to have to import it in every program that uses it. However,
the prelude doesn't actually import that function anymore. So, update the
comments to better match reality.
The fairness yield mistakenly called `Local::take()` which meant that it would
only work if a local task was available. In theory sending on a channel (or
calling try_recv) requires no runtime because it never blocks, so there's no
reason it shouldn't support such a use case.
Closes#12391
This updates the LLVM submodule to the `rust-llvm-2014-02-19` tag which is the
old one with https://github.com/rust-lang/llvm/pull/4 cherry-picked on top.
Awesome job by @neykov for this!
It is sometimes useful to parse just the path portion of a URL (path,
query string and fragment) rather than the entire URL.
In theory I could have made Url embed a Path, but that would be a
breaking change and I assume that Servo uses this API. I would be
happy to update the PR to embed Path in Url if that's what people
wanted.
This is mostly useful for working on rustc, when one is unfamiliar with the
AST a particular construct will produce. It's a -Z flag as it's very much for
debugging.
Closes#10485
When creating a staticlib, it unzips all static archives it finds and then
inserts the files manually into the output file. This process is done through
`ar`, and `ar` doesn't like if you specify you want to add files and you don't
give it any files.
This case arose whenever you linked to an archive that didn't have any contents
or all of the contents were filtered out. This just involved ignoring the case
where the number of inputs we have is 0, because we don't have any files to add
anyway.
The new methodology can be found in the re-worded comment, but the gist of it is
that -C prefer-dynamic doesn't turn off static linkage. The error messages
should also be a little more sane now.
Closes#12133
On windows, the GetEnvironmentVariable function will return the necessary buffer
size if the buffer provided was too small. This case previously fell through the
checks inside of fill_utf16_buf_and_decode, tripping an assertion in the `slice`
method.
This adds an extra case for when the return value is >= the buffer size, in
which case we assume the return value as the new buffer size and try again.
Closes#12376
Currently, the format_args! macro and its downstream macros in turn
expand to series of let statements, one for each of its arguments, and
then the invocation of the macro function. If one or more of the
arguments are RefCell's, the enclosing statement for the temporary of
the let is the let itself, which leads to scope problem. This patch
changes let's to a match expression.
Closes#12239.
Currently, the format_args! macro and its downstream macros in turn
expand to series of let statements, one for each of its arguments, and
then the invocation of the macro function. If one or more of the
arguments are RefCell's, the enclosing statement for the temporary of
the let is the let itself, which leads to scope problem. This patch
changes let's to a match expression.
Closes#12239.
Closes#11692. Instead of returning the original expression, a dummy expression
(with identical span) is returned. This prevents infinite loops of failed
expansions as well as odd double error messages in certain situations.
This is a slightly better fix than #12197, because it does not produce a double error and also fixes a few other cases where an infinite loop could happen.
This does not fix the other issue in #11692 (non-builtin macros not being recognised when expanded inside macros), which I think should be moved into a separate issue.
The 'do' keyword was deprecated in 0.10 #11868 , and is keep as
reserved keyword #12157 .
So the tutorial part about it doesn't make sense.
The spawning explanation was move into '15.2 Closure compatibility'.
Any macro tagged with #[macro_export] will be showed in the documentation for
that module. This also documents all the existing macros inside of std::macros.
Closes#3163
cc #5605Closes#9954
The command `make tips` did not work properly because of a flaw in the regexp parsing Makefile.in for documentation (`SHOW_DOCS`). I fixed it and also added a note about `make clean` in the build documentation (`make help`).
Iterators! Use them (in `is_utf16`), create them (in `utf16_items`).
Handle errors gracefully (`from_utf16_lossy`) and `from_utf16` returning `Option<~str>` instead of failing.
Add a pile of tests.
Many of the functions interacting with Windows APIs allocate a vector of
0's and do not retrieve a length directly from the API call, and so need
to be sure to remove the unmodified junk at the end of the vector.
When creating a staticlib, it unzips all static archives it finds and then
inserts the files manually into the output file. This process is done through
`ar`, and `ar` doesn't like if you specify you want to add files and you don't
give it any files.
This case arose whenever you linked to an archive that didn't have any contents
or all of the contents were filtered out. This just involved ignoring the case
where the number of inputs we have is 0, because we don't have any files to add
anyway.
