This is a suggestion for how we could make the protobuf exercise at the
end of day 3 better.
Generally speaking, the idea is to parse the protbuf bytes into data
types instead of only printing the parsing outcome to the console. To
make this a little more realistic, we also introduce a trait
`ProtoMessage` for message types.
I think this is more instructive than the current example. In
particular, we get to mess around with lifetimes. This might be a little
more complicated but can be a great opportunity for the students to tie
together different things they've learnt in the course so far.
What do you all think?
This modifies the exercise to lean more into interesting `match`
statements. It also uses the standard `Result` type, based on feedback
that students could understand it sufficiently at this point in the
course.
Addresses #1565.
`Ok(x?)` has the same outcome as `x` and save an unpacking/repacking
cycle.
`x as usize` has no effect when `x` already has type `usize`.
In `x < 4usize` the `usize` is unnecessary when `x` already has type
`usize`.
Currently, the implementation uses if-then-else chains and `<` and `>`.
This is not the most idiomatic Rust. Instead, we can use `cmp` and
`match` to make the code easier to read.
---------
Co-authored-by: Dustin J. Mitchell <djmitche@google.com>
People are often confused by this: the fact that we can remove the `*`
in the `println!()` is not because the compiler auto-derefs here (it
does not), but because `Display` is implemented for `&T where T:
Display` (a blanket implementation).
Speaker notes for Chromium's third-party crate exercise list the
transitive dependencies that will be downloaded during the exercise.
Before this commit the list was missing the `redox_syscall` crate.
Additionally, the commit sorts the crates to make it easier to compare
with the output of `git status` or `ls`.
---------
Co-authored-by: Martin Geisler <martin@geisler.net>
I don't like shortening words, so I prefer "Documentation" over "Docs".
I find this less jargony and thus easier to read (and potentially also
easier to translate).
This takes out the huge example with lots of macro magic. I don't think
we need it for an introductory course.
I also cleaned up the formatting a little and made sure to distinguish
between types and values.
---------
Co-authored-by: Dustin J. Mitchell <djmitche@google.com>
If we use a type annotation, we get around explaining the turbo fish,
which isn't trivial without having introduced generics. Type
annotations on the other hand are known already.
I swear I tested this in an actual Rust file, but I somehow messed up
when copy-pasting it into the example. The code is now in the test file
so it will be correct.
Why is the indentation wrong? Because of
https://github.com/rust-lang/mdBook/issues/1564
The indentation is not kept by the included content, which breaks the
Markdown.
With the latest version of mdbook-i18n-helpers, we now have support for
formatting in the `SUMMARY.md` file. This allows us to revert the
changes made in #130 when we first introduced the translation support.
This also aligns a few headings to match the heading in the outline.
While this isn’t strictly necessary, it removes a bit of work for the
translators.
As more and more Android teams start using Rust, the question of "How to do mocking?" has come up more frequently. Right now, we don't have a good answer to those teams, AOSP doesn't have any mocking framework available. That will change soon with the import of Mockall and this slide is part of the supporting documentation that we can point teams to.
The mixing of HTML and Markdown breaks our translation pipeline: we see
the HTML and fail to parse things correctly.
This might be https://github.com/google/mdbook-i18n-helpers/issues/97,
but I'm not 100% sure.
The fix is to make put the HTML on its own line: then the Markdown is
parsed again inside.
Fixes#1527.
```
$ lunch aosp_cf_x86_64_phone-userdebug
Invalid lunch combo: aosp_cf_x86_64_phone-userdebug
Valid combos must be of the form <product>-<release>-<variant>
```
I've taken some work by @fw-immunant and others on the new organization
of the course and condensed it into a form amenable to a text editor and
some computational analysis. You can see the inputs in `course.py` but
the interesting bits are the output: `outline.md` and `slides.md`.
The idea is to break the course into more, smaller segments with
exercises at the ends and breaks in between. So `outline.md` lists the
segments, their duration, and sums those durations up per-day. It shows
we're about an hour too long right now! There are more details of the
segments in `slides.md`, or you can see mostly the same stuff in
`course.py`.
This now contains all of the content from the v1 course, ensuring both
that we've covered everything and that we'll have somewhere to redirect
every page.
Fixes#1082.
Fixes#1465.
---------
Co-authored-by: Nicole LeGare <dlegare.1001@gmail.com>
Co-authored-by: Martin Geisler <mgeisler@google.com>
