5
votes
2answers
796 views

Is duplicate syntax for defining named functions a bad language design decision?

I am modelling a programming language for fun, and the syntax is heavily influenced by Scala - specifically function definitions. I have encountered a design problem because my language does not ...
6
votes
5answers
1k views

What negative consequences can arise from this language design rule?

Clarification: the rule is meant to prevent accessing variables that are not declared yet. Clarification 2: the rule mandates that the compiler follows calls to functions which are defined in the ...
6
votes
1answer
419 views

Why appending to a list in Scala should have O(n) time complexity?

I am learning Scala at the moment and I just read that the execution time of the append operation for a list (:+) grows linearly with the size of the list. Appending to a list seems like a pretty ...
2
votes
3answers
552 views

Does macros support make Scala a Lisp dialect?

I've read recently that macro support in Scala is now official. I checked the documentation page and they are reminiscent to the LISP ones. In one of his essays Paul Graham writes that when "you add ...
7
votes
1answer
664 views

Why is the Scala Option type not called Maybe, just as in Haskell?

Why is the Scala Option type not called Maybe, just as in Haskell? Maybe makes a lot more "semantic sense" to me, but maybe Option has different behaviour I am not aware of. Is there any particular ...
7
votes
1answer
1k views

What's the problem with Scala's XML literals?

In this post, Martin (the language's head honcho) writes: [XML literals] Seemed a great idea at the time, now it sticks out like a sore thumb. I believe with the new string interpolation ...
4
votes
2answers
383 views

What has been learned about making variance part of the type?

In Java, the variance of parameterized types is indicated depending on how it's used: <A extends B,B> void store(ArrayList<B> list, A elem) { list.add(elem); } Whereas in Scala it ...
6
votes
5answers
707 views

Help me deal with higher level languages [closed]

I'm trying to learn Scala (I have previously glanced at Erlang, Haskell, Ruby and had similar issues). I do enjoy it, but I feel bad about some things it does and I wonder if that's just due to all ...
19
votes
10answers
7k views

What do Java developers think of Scala? [closed]

I've noted that IDE support is nowhere near as good, but the language itself supports functional programming idioms much more cleanly.