Interview 1::Part 2 – Sean Griffin

from New Rustacean · host Chris Krycho

Sean Griffin on type systems and hopes for Rust's future Notes Chris chats with Sean Griffin about the tradeoffs between mental overhead and type safety, the expressiveness of different type systems, and some of the places where Rust currently falls down. Corrigenda Sean noted he could be wrong about IEnumerable<T> not having a Sum method in C♯, and post-show research indicated that he was (it's possible it was added after he had stopped doing .NET work, of course). See the documentation for details on how IEnumerable<T>.Sum it behaves in C♯ if you're curious. As a related note, I (Chris) have done a little bit of digging on C♯ in the interval and it's fair to say that while a lot of the "ceremony" involved in writing C♯ is annoying, it's much more than just a "slightly nicer Java", and indeed is a much nicer language than my previous, limited exposure had led me to believe. It's no Rust or F♯, but its type system is substantially more capable than Java's. Links fmap Discussion of fmap with Optional in Swift In Haskell Rust: Trait objects Specialization RFC Implementation Diesel Sponsors Aleksey Pirogov Chris Palmer Derek Morr Hamza Sheikh Leif Arne Storset Luca Schmid Micael Bergeron Ralph Giles ("rillian") reddraggone9 Ryan Ollos William Roe Become a sponsor Patreon Venmo Dwolla Cash.me Follow New Rustacean: Twitter: @newrustacean Email: [email protected] Chris Krycho GitHub: chriskrycho Twitter: @chriskrycho

Episode metadata supplied by the publisher feed · Published Feb 25, 2016

What this episode covers

Sean Griffin on type systems and hopes for Rust's future Notes ----- Chris chats with Sean Griffin about the tradeoffs between mental overhead and type safety, the expressiveness of different type systems, and some of the places where Rust currently falls down. ### Corrigenda Sean noted he could be wrong about `IEnumerable` not having a `Sum` method in C♯, and post-show research indicated that he was (it's possible it was added after he had stopped doing .NET work, of course). See the [documentation][c1] for details on how `IEnumerable.Sum` it behaves in C♯ if you're curious. As a related note, I (Chris) have done a little bit of digging on C♯ in the interval and it's fair to say that while a lot of the "ceremony" involved in writing C♯ is annoying, it's much more than just a "slightly nicer Java", and indeed is a much nicer language than my previous, limited exposure had led me to believe. It's no Rust or F♯, but its type system is substantially more capable than Java's. [c1]: https://msdn.microsoft.com/library/bb919210(v=vs.90).aspx Links ----- - fmap + [Discussion of `fmap` with `Optional` in Swift][l1] + [In Haskell][l2] - Rust: + [Trait objects][l3] + [Specialization RFC][l4] * [Implementation][l5] - [Diesel][l6] [l1]: https://robots.thoughtbot.com/functional-swift-for-dealing-with-optional-values [l2]: http://learnyouahaskell.com/functors-applicative-functors-and-monoids [l3]: https://doc.rust-lang.org/book/trait-objects.html [l4]: https://github.com/rust-lang/rfcs/pull/1210 [l5]: https://github.com/rust-lang/rust/issues/31844 [l6]: https://github.com/sgrif/diesel Sponsors -------- - Aleksey Pirogov - Chris Palmer - [Derek Morr][s3] - Hamza Sheikh - Leif Arne Storset - Luca Schmid - Micael Bergeron - Ralph Giles ("rillian") - reddraggone9 - Ryan Ollos - [William Roe][s11] [s3]: https://twitter.com/derekmorr [s11]: http://willroe.me ### Become a sponsor - Patreon - [Venmo](https://venmo.com/chriskrycho) - [Dwolla](https://www.dwolla.com/hub/chriskrycho) - [Cash.me](https://cash.me/$chriskrycho) Follow ------ - New Rustacean: + Twitter: [@newrustacean](https://www.twitter.com/newrustacean) + Email: [[email protected]](mailto:[email protected]) - Chris Krycho + GitHub: [chriskrycho](https://github.com/chriskrycho) + Twitter: [@chriskrycho](https://www.twitter.com/chriskrycho)

PodParley-generated summary based on available episode metadata and transcript content.

NOW PLAYING

Interview 1::Part 2 – Sean Griffin

0:00 22:14

1×

No transcript for this episode yet

We transcribe on demand. Request one and we'll notify you when it's ready — usually under 10 minutes.

Share this episode

Similar Episodes

Bringing it all together.

Mar 31, 2026 ·54m

Why is the vendor role so contentious in the cyber ecosystem?

Mar 27, 2026 ·14m

But what do you really want?

Mar 24, 2026 ·42m

Strategic approaches to talent: A practical guide.

Mar 20, 2026 ·42m

Mid season reflection with Kim Jones.

Mar 17, 2026 ·41m

Is the role of the CISO adding to the confusion?

Mar 13, 2026 ·44m

Similar Podcasts

Chewing the Fat with WorkForge WorkForge Bite-Sized Conversations for Building a Stronger Workforce Welcome to Chewing the Fat, a podcast delving deep into the world of food manufacturing. Dive into real conversations around critical topics like staffing, retention, onboarding, and career development in this essential industry. Subscribe now to gain insights from your peers, subject matter experts and more on the biggest issues facing food manufacturers today: -Hiring and retaining employees -Addressing the challenges of the Silver Tsunami -Improving time to productivity of new employees -Engaging employees from hire to retire And more... Tune in to Chewing the Fat, a WorkForge podcast, and join the conversation on how to build and sustain a resilient, high-performing workforce in food manufacturing. The Course Mentors Podcast The Course Mentors Hey there, future course creator!Ever feel like turning your know-how into an online course is like trying to solve a Rubik's cube blindfolded? Well, grab your headphones because "The Course Mentors Podcast" is here to be your secret weapon!Meet Aimee and Odette (that's us!), your new best friends in the course creation world. We've been in the trenches for over a decade, and for the last five years, we've been rocking the online course space. Now we're here to spill all our secrets in bite-sized, 15-20 minute episodes that'll fit perfectly in your coffee breaks.No fluff, no filler - just real, actionable advice that'll take you from "um, what's a landing page?" to "holy moly, I just hit six figures!". We're talking everything from crafting your course to marketing it like a pro and building a business that'll have you pinching yourself.Whether you're dreaming of ditching the 9-to-5 grind, adding a sweet extra income str CISO Perspectives (public) N2K Networks This season on CISO Perspectives, host Kim Jones explores some of the challenges of leading through uncertainty. We explore the complexity of the changing nature of regulation and working with the federal government, the evolution of privacy and fraud, and how emerging technologies like AI and quantum computing are changing cyber. When you don’t know what questions to ask, you’re afraid to ask, or don’t know who to ask, CISO Perspectives provides the foundation for learning in this brave new world. The PFN Cincinnati Bengals Podcast Pro Football Network The PFN Cincinnati Bengals Podcast is where you can stay up-to-date with the latest news and analysis on the Cincinnati Bengals! Our hosts, industry experts Jay Morrison and Dallas Robinson, provide weekly coverage of all the latest rumors and updates about the Bengals. Don’t forget to follow the show to receive new episodes directly in your podcast feed and leave a rating and review to let us know your thoughts.

Frequently Asked Questions

How long is this episode of New Rustacean?

This episode is 22 minutes long.

When was this New Rustacean episode published?

This episode was published on February 25, 2016.

What is this episode about?

Can I download this New Rustacean episode?

Yes, you can download this episode by clicking the download button on the episode player, or subscribe to the podcast in your preferred podcast app for automatic downloads.

URL copied to clipboard!