phronmophobic

 > *e
#error {
 :cause "Could not resolve symbol: clojure.stacktrace/print-cause-trace"
 :data {:type :sci/error, :line 1, :column 2, :file nil, :phase "analysis"}
 :via
 [{:type clojure.lang.ExceptionInfo
   :message "Could not resolve symbol: clojure.stacktrace/print-cause-trace"
   :data {:type :sci/error, :line 1, :column 2, :file nil, :phase "analysis"}
   :at [sci.impl.utils$throw_error_with_location invokeStatic "utils.cljc" 49]}]
 :trace

phronmophobic

{:via
 [{:type clojure.lang.ExceptionInfo,
   :message
   "No implementation of method: :getName of protocol: #'sci.impl.vars/HasName found for class: nil",
   :data
   {:type :sci/error,
    :line 1,
    :column 1,
    :message
    "No implementation of method: :getName of protocol: #'sci.impl.vars/HasName found for class: nil",

phronmophobic

I started using clojure cli a few months ago and I'm already sold on switching all my projects to work with deps.edn.

It works really well for projects and tools that I write, but I struggle when trying to use the cli to run tools like depstar and deps-deploy.

My conceptual model for how to use clojure cli:

1. specify the clojure environment (deps, java command flags, initial values)
2. specify a clojure function to run
3. specify arguments to pass to pass the #2

As a clojure cli user, is there a better conceptual model? I tend to struggle because the available clj command line options aren't organized into those 3 steps.

phronmophobic

Usage:
  Start a REPL   clj     [clj-opt*] [-A:aliases] [init-opt*]
  Exec function  clojure [clj-opt*] -X[:aliases] [a/fn] [kpath v]*
  Run main       clojure [clj-opt*] -M[:aliases] [init-opt*] [main-opt] [arg*]
  Prepare        clojure [clj-opt*] -P [other exec opts]

clj-opts:
 -Jopt          Pass opt through in java_opts, ex: -J-Xmx512m
 -Sdeps EDN     Deps data to use as the last deps file to be merged
 -Spath         Compute classpath and echo to stdout only

phronmophobic

;; Display a single todo item
(defui todo-item [ & {:keys [todo]}]
  (horizontal-layout
   (translate 5 5
              (on
               :mouse-down
               (fn [[mx my]]
                 [[:delete $todo]])
               (delete-X)))
   (translate 10 4

phronmophobic

Out of the tar pit
http://shaffner.us/cs/papers/tarpit.pdf

Joe Armstrong’s Thesis
http://erlang.org/download/armstrong_thesis_2003.pdf

Culture/Humor
http://thecodelesscode.com/ http://thedailywtf.com/

phronmophobic

import UIKit

protocol Lens {
    associatedtype ParentType
    associatedtype ChildType
    
    func lget(_ parent: ParentType) -> ChildType
    func lset(_ parent: ParentType, _ child: ChildType) -> ParentType
}

phronmophobic

import UIKit



protocol LensProtocol {
    func lget(data: Any?) -> Any?;
    func lset(data: Any?, val: Any?) -> Any?;
    
}

phronmophobic

from pprint import pprint
from copy import copy


class KeyLens(object):
    def __init__(self, key):
        self.key = key

    def lget(self, data):
        return data[self.key]