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by sheenobu 1955 days ago
Go can do encapsulation and polymorphism. Go doesn't do inheritance, of course. Channels can also help simulate message passing and actor-style code. What's missing?

IMO, If you compare Go to an OOP language that runs in a VM there are some things that will fall short but the industry has worked around it. It's not cool to have a beefy Smalltalk or Java VM, with the dynamic runtimes that let you auto-export objects as remote endpoints... you have small binaries exporting HTTP or RPC services running in containers and interfacing with service discovery and fabric systems. The "object orientation" is now at an abstraction sitting above the running binary.
1 comments
douglasisshiny 1955 days ago
>It's not cool to have a beefy Smalltalk or Java VM, with the dynamic runtimes that let you auto-export objects as remote endpoints... you have small binaries exporting HTTP or RPC services running in containers and interfacing with service discovery and fabric systems. The "object orientation" is now at an abstraction sitting above the running binary.

I'm not sure why an application running in the JVM in a container is any different. Can you elaborate?

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sheenobu 1955 days ago
Running a JVM application in a container is not all that different to running a Go application in a container. But the design of the JVM runtime and its tooling is vastly different than Go. The JVM is more complex but it can do more things. Go is simpler and can get you to a working product quicker.

If someone asks me to build something and they tell me it will run in docker/kubernetes, have the standard containerized CI pipelines, and communicate with other services over some standard protocol like HTTP; doing it on the JVM is doable and probably easier than ever but I would just think about all the cool JVM features I wouldn't get to use (hot code deploy, runtime modularity tools, all the neat bytecode hacks, even spring which everyone but me seems to hate).

If I don't get to use those features then I would rather grab a language like Go, since it doesn't front load so many runtime complexities. (and if this was 10-15 years ago maybe I'd say "Go doesn't front load so many complexities AND performance penalties")

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