So that `Uuid` can be used as the key in a `HashMap` or in a `HashSet`, etc
The only question I have about this is: Is endianness an issue, here? If so, what's the correct way to proceed?
Could prevent callers from catching the situation and lead to e.g early
iterator terminations (cf. `Reader::read_byte`) since `None` is only to
be returned only on EOF.
This commit adds a `--test` flag to rustdoc to expose the ability to test code examples in doc strings. This work by using sundown's `lang` attribute to figure out how a code block should be tested. The format for this is:
```
1. ```rust
2. ```rust,ignore
3. ```rust,notest
4. ```rust,should_fail
```
Where `rust` means that rustdoc will attempt to test is, `ignore` means that it will not execute the test but it will compile it, `notest` means that rustdoc completely ignores it, and `should_fail` means that the test should fail. This commit also leverages `extra::test` for the testing harness in order to allow parallelization and whatnot.
I have fixed all existing code examples in libstd and libextra, but I have not made a pass through the crates in order to change code blocks to testable code blocks.
It may also be a questionable decision to require opting-in to a testable code block.
Finally, I kept our sugar in the doc suite to omit lines starting with `#` in documentation but still process them during tests.
Closes#2925
This adds support for the `--test` flag to rustdoc which will parse a crate,
extract all code examples in doc comments, and then run each test in the
extra::test driver.
Turns out libuv's build system doesn't like us telling them that the build
directory is a relative location, as it always spits out a warning about a
circular dependency being dropped. By using an absolute path, turns out the
warnings isn't spit out, who knew?
Closes#11067
Turns out libuv's build system doesn't like us telling them that the build
directory is a relative location, as it always spits out a warning about a
circular dependency being dropped. By using an absolute path, turns out the
warnings isn't spit out, who knew?
Closes#11067
Using --dep-info writes Makefile-compatible dependency info to a file that is by default named based on the crate source filename. This adds an optional string argument to the --dep-info option which allows to write dependency info to an arbitrary filename.
cc #10698
This uses quite a bit of unsafe code for speed and failure safety, and allocates `2*n` temporary storage.
[Performance](https://gist.github.com/huonw/5547f2478380288a28c2):
| n | new | priority_queue | quick3 |
|-------:|---------:|---------------:|---------:|
| 5 | 200 | 155 | 106 |
| 100 | 6490 | 8750 | 5810 |
| 10000 | 1300000 | 1790000 | 1060000 |
| 100000 | 16700000 | 23600000 | 12700000 |
| sorted | 520000 | 1380000 | 53900000 |
| trend | 1310000 | 1690000 | 1100000 |
(The times are in nanoseconds, having subtracted the set-up time (i.e. the `just_generate` bench target).)
I imagine that there is still significant room for improvement, particularly because both priority_queue and quick3 are doing a static call via `Ord` or `TotalOrd` for the comparisons, while this is using a (boxed) closure.
Also, this code does not `clone`, unlike `quick_sort3`; and is stable, unlike both of the others.
Trap the io_error condition so that a more informative error message is
displayed when the linker program cannot be started, such as when the
name of the linker binary is accidentally mistyped.
closes#10755
Upon inspecting the core dumps, they're all segfaulting at the same instruction
with the same value in a register that looks fishy. It appears to be indexing
into an array with a -1 index and then getting some weird overflow and dying.
I have attempted to fix this as part of
alexcrichton/libuv@fd5308383c,
but I am unsure of whether this is the actual cause of the problem, so I am not
going to upstream it just yet. I have a fairly high confidence that this is
indeed the problem, but I want to make sure that the bots to segfault all over
the place before upstreaming.
Upon inspecting the core dumps, they're all segfaulting at the same instruction
with the same value in a register that looks fishy. It appears to be indexing
into an array with a -1 index and then getting some weird overflow and dying.
I have attempted to fix this as part of
alexcrichton/libuv@fd5308383c,
but I am unsure of whether this is the actual cause of the problem, so I am not
going to upstream it just yet. I have a fairly high confidence that this is
indeed the problem, but I want to make sure that the bots to segfault all over
the place before upstreaming.
3 minor clean-ups now that #9629 is fixed:
* Update MutChunkIter to remove the ```remainder``` that existed just to allow the size_hint() method to be implemented. This is no longer necessary since we can just access the length of the slice directly.
* Update MutSplitIterator to address the FIXME in its size_hint() method. This method was only partially implemented due to the issue. Also, implement a minor optimization in the case that its the last iteration.
* Update ByRef iterator to implement the size_hint() method.
I noticed that MutSplitIterator returns an empty slice if called on an empty slice. I don't know if this is intended or not, but I left the ```finished``` field in-place to preserve this behavior.
@TeXitoi @blake2-ppc
Update the next() method to just return self.v in the case that we've reached
the last element that the iterator will yield. This produces equivalent
behavior as before, but without the cost of updating the field.
Update the size_hint() method to return a better hint now that #9629 is fixed.
Right now the --crate-id and related flags are all process *after* the entire
crate is parsed. This is less than desirable when used with makefiles because it
means that just to learn the output name of the crate you have to parse the
entire crate (unnecessary).
This commit changes the behavior to lift the handling of these flags much sooner
in the compilation process. This allows us to not have to parse the entire crate
and only have to worry about parsing the crate attributes themselves. The
related methods have all been updated to take an array of attributes rather than
a crate.
Additionally, this ceases duplication of the "what output are we producing"
logic in order to correctly handle things in the case of --test.
Finally, this adds tests for all of this functionality to ensure that it does
not regress.
