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Async Ruby is colorless! It's obvious from the examples provided in the post. For example, you can use the method `URI.open` both synchronously and asynchronou

Async Ruby is colorless! It's obvious from the examples provided in the post. For example, you can use the method `URI.open` both synchronously and asynchronously. It's something I didn't want to mention in the article because it's a relatively advanced async concept, but yea - Async Ruby is already colorless and it's great.

gpderetta 5y ago
IIRC ruby has first class continuations, so it doesn't have to deal with any async/await nonsense.
- brunosutic 5y ago
  That's right - Async Ruby uses fibers (stackful coroutines) as a concurrency primitive. There's a lot to say about this, but the end result is that we get to write simple synchronous code and it can run asynchronously.
  - g8oz 5y ago
    N00b question: would the fibers being introduced in PHP 8.1 enable the same functionality in that language? https://php.watch/versions/8.1/fibers https://php.watch/versions/8.1/fibers
nixpulvis 5y ago
On a tangential note. > Async Ruby is colorless! I find it deeply irritating that this is how we choose to describe things these days. Rather than talking about modality, or even using a few more words to describe the actual differences in terms of the underlying programing language models. Telling me that Ruby's async is colorless implies that I know about the description of programming models as "colors" of code, which was just some random analogy someone came up with which caught on. Nothing about this has anything to do with color. Even syntax highlighting doesn't really fit. This is akin to particle physicists getting cheeky and calling one of the quantum states "color" when it has nothing to do with wavelength (correct me if I'm wrong). This is an appeal to stop trying to be so cute. Thank you.
- brunosutic 5y ago
  Red-black tree, a well-known algorithm also uses color references https://en.wikipedia.org/wiki/Red–black_tree https://en.wikipedia.org/wiki/Red–black_tree
- bradgessler 5y ago
  What is “colorless” suppose to mean? This is the first time I’ve seen it used.
  - vmarquet 5y ago
    I think it's a reference to this blog post https://journal.stuffwithstuff.com/2015/02/01/what-color-is-your-function/ https://journal.stuffwithstuff.com/2015/02/01/what-color-is-...
    - auno 5y ago
      Which in turn is making a reference to an even older post at https://ansuz.sooke.bc.ca/entry/23 https://ansuz.sooke.bc.ca/entry/23.
  - jsnell 5y ago
    Context: https://journal.stuffwithstuff.com/2015/02/01/what-color-is-your-function/ https://journal.stuffwithstuff.com/2015/02/01/what-color-is-...
  - deleted 5y ago
    [deleted]
  - justsomeuser 5y ago
    It references the function return type: Colored = Promise<T> Colorless = T In "colorless" async/await, async functions are implicit (no async keyword), and when called, the compiler auto-unwraps the promise, so everything looks like "sync" code but any function stack could "save and resume" at an "async point".
    - 5y ago

gpderetta 5y ago

IIRC ruby has first class continuations, so it doesn't have to deal with any async/await nonsense.

brunosutic 5y ago
That's right - Async Ruby uses fibers (stackful coroutines) as a concurrency primitive. There's a lot to say about this, but the end result is that we get to write simple synchronous code and it can run asynchronously.
- g8oz 5y ago
  N00b question: would the fibers being introduced in PHP 8.1 enable the same functionality in that language? https://php.watch/versions/8.1/fibers https://php.watch/versions/8.1/fibers

nixpulvis 5y ago

On a tangential note. > Async Ruby is colorless! I find it deeply irritating that this is how we choose to describe things these days. Rather than talking about modality, or even using a few more words to describe the actual differences in terms of the underlying programing language models. Telling me that Ruby's async is colorless implies that I know about the description of programming models as "colors" of code, which was just some random analogy someone came up with which caught on. Nothing about this has anything to do with color. Even syntax highlighting doesn't really fit. This is akin to particle physicists getting cheeky and calling one of the quantum states "color" when it has nothing to do with wavelength (correct me if I'm wrong). This is an appeal to stop trying to be so cute. Thank you.

brunosutic 5y ago
Red-black tree, a well-known algorithm also uses color references https://en.wikipedia.org/wiki/Red–black_tree https://en.wikipedia.org/wiki/Red–black_tree
bradgessler 5y ago
What is “colorless” suppose to mean? This is the first time I’ve seen it used.
- vmarquet 5y ago
  I think it's a reference to this blog post https://journal.stuffwithstuff.com/2015/02/01/what-color-is-your-function/ https://journal.stuffwithstuff.com/2015/02/01/what-color-is-...
  - auno 5y ago
    Which in turn is making a reference to an even older post at https://ansuz.sooke.bc.ca/entry/23 https://ansuz.sooke.bc.ca/entry/23.
- jsnell 5y ago
  Context: https://journal.stuffwithstuff.com/2015/02/01/what-color-is-your-function/ https://journal.stuffwithstuff.com/2015/02/01/what-color-is-...
- deleted 5y ago
  [deleted]
- justsomeuser 5y ago
  It references the function return type: Colored = Promise<T> Colorless = T In "colorless" async/await, async functions are implicit (no async keyword), and when called, the compiler auto-unwraps the promise, so everything looks like "sync" code but any function stack could "save and resume" at an "async point".
  - 5y ago