Coroutines Beyond Concurrency by Alex Semin

Recording brought to you by American Express. americanexpres...
Kotlin coroutines are most known as an elegant and modern solution for managing asynchronous work. But due to their versatile design, coroutines can also be helpful for tasks outside of concurrency.
We will deep dive into the implementation of coroutines in Kotlin and learn why their asynchronous execution is not a language feature. Sequence builders and deeply recursive functions from the standard library are prime examples of synchronous coroutines. You will learn how they work and strengthen your understanding of coroutine machinery.
We will look at the parser combinator library Parsus. It uses coroutines to make parsers debuggable without code generation and process data of arbitrary depth without stack overflow errors. You will learn how to build libraries using similar techniques and how to avoid various pitfalls when working with low-level coroutines APIs.
Talk by: Alex Semin
#coroutines #KotlinConf

[@Maarttttt]

Can someone explain what the added value is of using the coroutines mechanism in the parsing library? I could not really understand this portion. Is it more efficient? Good talk overall.

[@ChrisB_Crisps]

I guess the idea was to use coroutines while also avoiding exhausting compute resources when parsing and keeping the symbols. But is not clear to me if that was intended too in the presentation.

[@forest__fires]

Hi @Kotlin by JetBrains,
Glad to reach you!
I really excited about Coroutines. In that, I'm having one confusion. it's very crucial for me please let me clarify in it.
If I'm having the CoroutinesScope(Dispatures.Main) and inside that I'm launching 1000 coroutines. in that case its really can archive the 1000 concurrency?
The cause of the question is, anyway the UI Thread always runs in the Manner of sequentially right. then how it really archive or update to the UI in parallel manner?

[@Mike_x64]

Asynchrony does not necessarily mean parallelism. Dispatchers.Main is single-threaded, hence, your coroutines gonna run sequentially: one suspends or finishes-the other one starts or resumes.

[@avc8484]

I have been working as android developer for more than 6 years. but working on kotlin for architectural changes feel very complex. Any suggestions for books or sources?

[@ChrisB_Crisps]

One option is looking for open source applications and collaborating to the project to learn to do things in a different way.

[@rogeralien]

Thank you so much for this video! It was super useful! 🙏

[@ferg]

Great talk!

[@guai9632]

parser combinator looks cool af