alt Hacker NewsLanguages like Go, is how you end up with what appears simple on the surface, while in reality is full of gotchas and boilerplate for what complex languages support out of the box.
That is how you get double nils, exception handling that pretends not to be one, url based imports that requires source code and rewrites when the host changes, generators by code patterns, generics that miss some language constructs,....
Replies
bigwheels • yesterday at 4:29 PM
Written a few hundred kloc of go and I'd never heard of double nil. Turns out it's nasty.
var i interface{} // (Type: nil, Value: nil) -> i == nil is TRUE
var p *int = nil // p is nil
i = p // (Type: *int, Value: nil) -> i == nil is FALSE!➕ show 1 reply
foldr • yesterday at 5:03 PM
> url based imports that requires source code and rewrites when the host changes
This is not the case. It can be avoided quite easily with 'replace' directives and/or GOPROXY.
➕ show 1 reply
None of those are real problems in reality, I don't think Go has more gotchas than other languages.