davetron5000

#!/usr/bin/perl
#
# Pre-commit hook for running checkstyle on changed Java sources
#
# To use this you need:
# 1. checkstyle's jar file somewhere
# 2. a checkstyle XML check file somewhere
# 3. To configure git:
#   * git config --add checkstyle.jar <location of jar>
#   * git config --add checkstyle.checkfile <location of checkfile>

davetron5000

object Unless {
  def unless[T](test:Boolean)(code: => T) = { if (!test) code }
}

import Unless._

unless(seq.isEmpty) {
  println("We gots us some stuff!")
}

davetron5000

# This is DRY run amok.  There is no reason to create an abstraction around 
# loading all the notes when we have it already: Note.all
# The private methods add no value.
class NotesController < ApplicationController
  def index
    load_notes
  end

  def show
    load_note

davetron5000

class PublicClassPeopleUse
  def initialize
    # whatever
    @real_instance = SetupOnly.new
  end
  
  def setup
    after_setup_instance = @real_instance.setup
    @real_instance = after_setup_instance
  end

davetron5000

require "rspec"
RSpec.configure do |config|
  config.expect_with :rspec do |expectations|
    expectations.include_chain_clauses_in_custom_matcher_descriptions = true
  end

  config.mock_with :rspec do |mocks|
    mocks.verify_partial_doubles = true
  end
end

davetron5000

Is it try that if P -> Q, then ~Q -> ~P always?

Let's see!

Background: A -> B is an abbreviation for ~A OR B.  See https://mathworld.wolfram.com/Implies.html

| P | Q | ~P | ~Q | ~P OR Q = P->Q | ~~Q | ~~Q OR ~P = ~Q -> ~P | Same?
-----------------------------------------------------------------------
| T | T | F  | F  | F OR T  =  T   | T   | T OR F    = T        |   ✅
| T | F | F  | T  | F OR F  =  F   | F   | F OR F    = F        |   ✅

davetron5000

#include <stdio.h>

/*                       vvv----pass a pointer to the int */
int doit(int *result) {
  *result = 42; /* <-- change the value of it so the caller can see it */
  return 1; /* return 0 for OK, and an error code if a failure happened */
}

int main(int argc, char **argv) {
  int output = 0;

davetron5000

This is the error produced from a system test where the rails server raised an exception:

---


Traceback (most recent call last):
	20: from /usr/dependencies-cache/bundler/ruby/2.7.0/gems/minitest-5.14.0/lib/minitest.rb:68:in `block in autorun'
	19: from /usr/dependencies-cache/bundler/ruby/2.7.0/gems/minitest-5.14.0/lib/minitest.rb:138:in `run'
	18: from /usr/dependencies-cache/bundler/ruby/2.7.0/gems/activesupport-6.0.2.2/lib/active_support/testing/parallelization.rb:74:in `start'
	17: from /usr/dependencies-cache/bundler/ruby/2.7.0/gems/activesupport-6.0.2.2/lib/active_support/testing/parallelization.rb:74:in `map'

davetron5000

class BasicObject
  def or_else(value, &block)
    if self.nil?
      if block.nil?
        value
      else
        block.()
      end
    else
      self

davetron5000

diff --git a/babel.config.js b/babel.config.js
index b8b230b..f930f3e 100644
--- a/babel.config.js
+++ b/babel.config.js
@@ -30,7 +30,6 @@ module.exports = function(api) {
         {
           forceAllTransforms: true,
           useBuiltIns: 'entry',
-          corejs: 3,
           modules: false,