Intro redux #16641
Intro redux #16641
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steveklabnik
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| return &i; | ||
| } | ||
| This introduction will give you a rough idea of what Rust is like, eliding many | ||
| details. I does not require prior experience with systems programming, but you |
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General comment: Very easy to read, but I didn't get a sense of why ownership is a "better" model than garbage collection, or when it's "better". |
| may find the syntax easier if you've used a 'curly brace' programming language | ||
| before, like C or JavaScript. The concepts are more important than the syntax, | ||
| so don't worry if you don't get every last detail: you can read [the | ||
| Guide](guide.html) to get a more full explanation. |
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'fuller', maybe? (That said, neither sounds horrible to me...)
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yeah, +1 to complete
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Fixed. |
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It's been 9 days. r? |
steveklabnik
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rebased |
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| ```{bash} | ||
| $ cargo update color | ||
| Updating git repository `https://github.com/bjz/color-rs.git` | ||
| ``` |
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This step of cargo update color isn't necessarily part of a normal workflow when adding a dependency. You're largely expected to just run cargo build which will fetch it and update it as necessary.
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cargo build automatically updates dependencies?
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Only if they don't previously have an entry in the lockfile (such as you just added a dependency)
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oh interesting. okay.
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@alexcrichton @huonw I changed it to add the mutability thing and more about data races. See how you feel about this version |
| associated resource until the count is zero. The 'atomic' portion refers to an | ||
| Arc's usage of concurrency primitives to atomically update the count, making it | ||
| safe across threads. If we use an Arc, we can have our ten references. But, an | ||
| Arc can only hold immutable data, and we want to modify what we're sharing. In |
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This may be more accurate to say: "But, an Arc does not allow mutable borrows of the data it holds"
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nits addressed :) |
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| ```{bash} | ||
| $ cargo run | ||
| Updating git repository `https://github.com/bjz/color-rs.git` |
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this is still incorrect. along with the line under this.
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r=me with some squashing, thanks @steveklabnik! |
steveklabnik
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This was originally on my blog, so it's incredibly informal. Let's make it better.
steveklabnik
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@liigo thanks, fixed. |
Because my '30 minute intro' was originally a blog post, the tone was a bit too light. It also was written a long time ago, and deserves a bit of a refresher for modern Rust. now that my work on the Guide is wrapping up, I want to give it a quick re-write as well. This is not yet done, but I'm submitting it for feedback so far. I'd really like some comments on the ownership part in particular, which gets lower level than before, but is not strictly 100% accurate. Trying to strike a balance. In general, I'm not sure I go into enough detail for those without systems experience, but am afraid of too much detail for those that do. Rendered view: https://github.com/steveklabnik/rust/blob/intro_redux/src/doc/intro.md /cc @wycats @nikomatsakis @brson etc
Because my '30 minute intro' was originally a blog post, the tone was a bit too light. It also was written a long time ago, and deserves a bit of a refresher for modern Rust. now that my work on the Guide is wrapping up, I want to give it a quick re-write as well.
This is not yet done, but I'm submitting it for feedback so far. I'd really like some comments on the ownership part in particular, which gets lower level than before, but is not strictly 100% accurate. Trying to strike a balance.
In general, I'm not sure I go into enough detail for those without systems experience, but am afraid of too much detail for those that do.
Rendered view: https://github.com/steveklabnik/rust/blob/intro_redux/src/doc/intro.md
/cc @wycats @nikomatsakis @brson etc