Julia is a language that looks very simple, but the more you use it, the more you realize how complex and unpredictable it is.
I think that Union types do more harm than good (why would you want a function to return Union of int and float instead of compile error? It totally slows down the program)
Array{Number} is totally different from Array{:<Number}, and shouldn’t be allowed, as it is inefficient.
1-based indexing was a mistake, and I have seen it emitting inefficient code in the PTX compiler.
But the worst and hardest part is the rule/heuristic for multiple dispatch: it’s so complex, that it isn’t even documented. It should probably throw more errors and be predictable instead of trying to be so smart.
I think that Union types do more harm than good (why would you want a function to return Union of int and float instead of compile error? It totally slows down the program)
Array{Number} is totally different from Array{:<Number}, and shouldn’t be allowed, as it is inefficient.
1-based indexing was a mistake, and I have seen it emitting inefficient code in the PTX compiler.
But the worst and hardest part is the rule/heuristic for multiple dispatch: it’s so complex, that it isn’t even documented. It should probably throw more errors and be predictable instead of trying to be so smart.