shashi

Extensible Symbolic Programming in Julia

       Vancouver Julia Meetup

            04/20/2021
           Shashi Gowda

         PhD candidate in

Computational Science and Engineering

shashi

using Tullio
using Dagger
using Dagger: DArray, chunks, Thunk, ArrayDomain

struct Zero end
Base.zero(::Type{Thunk}) = delayed(()->Zero())()
Base.zero(::Type{Union{Zero, ArrayDomain}}) = Zero()
Base.:(+)(z::Zero, x) = x
Base.:(+)(x, z::Zero) = x
Base.:(+)(z::Zero, x::Zero) = z

shashi

shashi

shashi

immutable IRef{T}
    value::T
    IRef() = new()
    IRef(value) = new(value)
end

immutable Result{T,S}
    issuccess::Bool
    value::IRef{T}
    error::IRef{S}

shashi

using Lazy

function methoddoc(name, sign, doc)
   vbox(
    fontweight(bold, code(string(name) * "(" * join(map(string, sign.types), ", ") *")" )),
    doc
   )
end

function showdoc(fn::Function, fndoc)

shashi

shashi

(function() {
  function Sneaky (node) {
    var lightNode = Polymer.dom(node)
    this.lightNode = lightNode
    this.node = lightNode.node
  }

  Sneaky.prototype = Polymer.dom()

  Object.defineProperties(Sneaky.prototype, {

shashi

# An infinite number of mathematicians walk into a bar...

using Color

colors = distinguishable_colors(9)

box(w, h, n) =
    empty |> fillcolor(colors[n % 9 + 1]) |> size(w, h)

shashi