jstaffans

Hoplon and Javelin

• Your framework needs a target. Hoplon's target is SPAs, large applications with long lifetimes. Optimized for total cost of ownership.
• Three state machines in one:
  • persistent (business) state
  • transient/app: what can the user do next? workflow
• Hoplon app coordinates the different states
• Javelin is the app part (the spreadsheet of your application)
• provides formula cells (output) and functions (input).

jstaffans

(defrecord ScalarSchema [name type]
  Schema
  (spec [this] (schema.spec.leaf/leaf-spec 
                 (schema.spec.core/precondition this
                   #(nil? (s/check type %))
                   #(list 's/check type %))))
  (explain [this] "Some explanation")
  )

jstaffans

{
  __schema {
    types {
      name
      kind
      fields {
        name
        type {name, kind, ofType {name, kind} }
      }
    }

jstaffans

;; Trying to traverse an AST whose root is a list

(defrecord ParentDS []
  muse/DataSource
  (fetch [_]
    (async/go [{:id 1 :name "Parent 1"} {:id 2 :name "Parent 2"}]))
  
  muse/LabeledSource
  (resource-id [_]
    :some-label))

jstaffans

1, att, den, ett, där, fin, han, hon, jag, kan, men, min, oss, och, sin, skall, som, till, om
2, mitt, in, kom, dem, mig, dig, ditt, hade, hos, man, sig, sitt, vill, dit, från, upp, bra, i dag
3, henne, honom, liten, vem, klass, bara, efter, barn, alla, stor, därför, skulle, läsa, rolig, tack, över, finns, flicka
4, går, fanns, kväll, kommer, eller, fick, hemma, vacker, ensam, fest, alltid, aldrig, bästa, fått, gång, också, lov, någon
5, något, blomma, först, ingen, bättre, kunna, gammal, genom, under, igen, hjälp, ingenting, jorden, kanske, göra, mycket, ledsen, ofta
6, tycker, lätt, morgon, många, pojke, regn, vilket, själv, snälla, sommar, sova, säga, än, tänka, allting, gjorde, vinter, visst
7, vän, ändå, ännu, överallt, rädd, cykel, riktig, viktig, strax, person, adjö, berätta, natur, sist, farlig, känna, svensk, ge
8, ledsen, Finland, hej, leva, precis, plötsligt, älska, hälsa, lilla, timme, män, människor, trött, ung, ungefär, lång, omkring, värld
9, länge, igenom, även, lärare, vacker, ordning, varje,

jstaffans

(defmacro assoc-time
  "Evaluates expr and assocs the time it took in msecs with the result of expr."
  [expr]
  `(let [start# (System/currentTimeMillis)
         ret# ~expr]
     (assoc ret# :time (- (System/currentTimeMillis) start#))))

jstaffans

Notes from ClojureD 24.1.2015

Albrecht Schmidt: "Start your engine: My Clojure Bot in the Hello World Open 2014"

• Hello World Open: programming contest organised by Reaktor and Supercell with ~2500 teams, worldwide distribution
  • Client-server car race, cards driven with some parameters such as decelerate/accelerate, change lanes
  • Organisers provided test server with simple testing UI
• Parameters for car are quite simple: current angle, position etc
• Clojure works well for processing simple data structures like this - analysis, storing, examining
• Used Incanter to plot bot data during test (throttles vs. angles)

jstaffans

# seed: -162143530
53
56 33
33 81 35
98 5 86 71
64 6 8 33 91
60 8 60 55 3 25
97 50 20 33 72 47 5
63 82 57 1 29 32 26 80
66 16 83 1 37 15 73 30 58

jstaffans

[alias]
  ls = log --pretty=format:"%C(yellow)%h%Cred%d\\ %Creset%s%Cblue\\ [%cn]" --decorate
  lds = log --pretty=format:"%C(yellow)%h\\ %ad%Cred%d\\ %Creset%s%Cblue\\ [%cn]" --decorate --date=short
  ll = log --pretty=format:"%C(yellow)%h%Cred%d\\ %Creset%s%Cblue\\ [%cn]" --decorate --numstat
  lnc = log --pretty=format:"%h\\ %s\\ [%cn]"
  dl = "!git ll -1"
  dlc = diff --cached HEAD^
  cp = cherry-pick
  st = status -s
  cl = clone

jstaffans

# ~/.tmux.conf
#
# See the following files:
#
#   /opt/local/share/doc/tmux/t-williams.conf
#   /opt/local/share/doc/tmux/screen-keys.conf
#   /opt/local/share/doc/tmux/vim-keys.conf
#
# URLs to read:
#