The Nineteenth Byte

Riker

1:21 AM

@flawr I believe it's dead as of yesterday/day before

somebody made a github webpaeg with a tree diagram though

New Sandboxed Posts

4:00 AM

0

A: Sandbox for Proposed Challenges

HTML-tac-toe Build a one-player tic-tac-toe game with only HTML and CSS. Introduction You can do just about anything with a fully-featured programming language, but how much can you accomplish on a Neopets petpage? Inspired by http://www.neopets.com/~vuh Challenge Build a one-player tic-tac-...

ASCII-only

@Downgoat for what

Downgoat

@ASCII-only in like VSL

How do you know which should be executed first

for example if they are multiple files

ASCII-only

imo top to bottom

oh well uh

if there are multiple files, is it even possible

ASCII-only

4:27 AM

@Downgoat oh yeah since you're here:

21 hours ago, by ASCII-only

also @anyone what conditionals/branching/looping should be in the core of the language (as in, the part used to create the standard library)? goto+if? while? for_each? should C-style for loops be in the core (they are no more than sugar for a rearranged while loop)? and should exponentiation be a core feature too?

Downgoat

@ASCII-only while is all you need

is this a strict type or dynamic type language?

ASCII-only

strict

but i'm going for a more complex type system, like haskell

@Downgoat would that be a good idea though

also if you don't mind could you also take a look at #48603188

Downgoat

@ASCII-only yeah having gotos in core would make it hard to make sure things that are supposed to return do in fact return

New Main Posts

0

Q: algorithm to find nearest resturant

I need help with the algorithm to get the shortest distance. On a street there are x customers and y restaurants. Need help to find algorithm to get nearest restaurants among all. Have tried but couldn't find any solution

algorithm

ASCII-only

4:52 AM

@Downgoat now, to figure out how to create a lambda/block/closure or something :/

Downgoat

@ASCII-only is this compiled language

ASCII-only

no (well, not yet)

i guess the problem is mostly type deduction

Downgoat

5:18 AM

@ASCII-only oh for type deduct i highly recommend algorithm used in vsl 10/10 very fast and flexible

@ASCII-only wait how do you have expressions in a type expression?

shouldn't that just be Array<T: IdentifierNode>

ASCII-only

@Downgoat it'd be used during overload resolution

@Downgoat no because you don't have the value yet, just the AST node

Downgoat

@ASCII-only as in determining which overload to call?

ASCII-only

@Downgoat yes

Downgoat

@ASCII-only yeah still having hard time figuring out how to do lambdas in VSL

the issue is the pass that would detect which scope an identifier belongs to which takes like 3ms per pass which is painfully slow (compare to like 20us for expression type deduction)

ASCII-only

@Downgoat would they not be similar to functions

@Downgoat why not have the scope as a property on the identifier node

Downgoat

5:23 AM

@ASCII-only if you mean nested functions, yes, since those are basically lambdas too, but methods and globals are easy because there is a finite amount of locations identifiers can refer to

@ASCII-only well the Identifier AST node points to a 'ScopeItem' which is associated with a Scope but that isn't a very fast process because in order to work with the memory optimization passes it would need to be able to compare lifetimes of captured identifiers relative to lambda, etc.

ASCII-only

find what

Downgoat

for a class, global variables have unlimited lifetime and instance variables have the lifetime of their parent object

@ASCII-only fixed

I don't know how memory works for the language you are doing

ASCII-only

why would it be slow to find the Scope though

@Downgoat it's interpreted rn so no issue here

Downgoat

@ASCII-only well to find the highest 'scope' that the identifier may escape to requires you to do static escape analysis

which I am trying to speed up but nodejs is inherently slow

ASCII-only

@Downgoat ????

Downgoat

5:28 AM

@ASCII-only e.g.:

ASCII-only

@Pavel you should be very, very, very sad you're using Python in the first place

Downgoat

func makeFarmBuilder(farmName: Farm) {
    return Farm(name: farmName)
}
func addAnimalToFarm(farm: Farm) -> (animal: Animal) -> Animal {
    return { farm.add(animal: $0) }
}

let farmBuilder = makeFarmBuilder("Hello")
print(addAnimalToFarm(farm: Farm())(animal: Animal()).getFarmName())

this is a simpler example but take the string, determining where it would need to be deallocated as it is captured by both lambdas requires much more complex analysis

not that it is impossible in this case

ASCII-only

~~you could always take the easy out and go with ARC~~

oh yeah. also time to figure out how to do generics in the overload table :|

@MilkyWay90 It's not. They're literally the same language, just Python 3 has more generators and fewer specialcased functions (ones with optional parens)

Downgoat

@ASCII-only oh gl with that i ended up having a TypeContext class in VSL and after identifying the non-generic overload determining if a new implementation was needed: github.com/vsl-lang/VSL/blob/inheritance/src/vsl/backend/llvm/… but might be harder given dynamic system

ASCII-only

@Downgoat well. this is interpreted :P so... 99% chance i'll just use a hacky workaround

Downgoat

5:51 AM

@ASCII-only we are from ppcg so s/hacky workaround/solution

Jo King

Is it falsy or falsey?

ASCII-only

falsy

Downgoat

57

Q: Is it "falsy" or "falsey"?

I have seen both spellings of this word, falsy and falsey. It can mean "something that is equivalent to false" in computer science, such as "The only two falsy values in the Ruby Language are false and nil". What is the correct usage of this word?

terminology orthography suffixes computing silent-letters

Jo King

so... inclusive or?

ASCII-only

6:11 AM

@JoKing yes

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