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Shannon Skipper havenwood

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@havenwood
havenwood / literalparser.rb
Created October 29, 2025 09:40 — forked from apeiros/literalparser.rb
Parse literals to ruby objects
require 'strscan'
require 'bigdecimal'
# This is copied and slightly refactored from BareTest::TabularData
#
# Example
# LiteralParser.parse("nil") # => nil
# LiteralParser.parse(":foo") # => :foo
@havenwood
havenwood / build.rb
Created May 29, 2024 19:29 — forked from jedschneider/build.rb
build script for terraform deploys
#!/usr/bin/env ruby
# frozen_string_literal: true
require 'optparse'
require 'fileutils'
require 'open3'
module TerraformExecutor
Config = Struct.new(:parallelism, :init, :vault, :tag, keyword_init: true)
@havenwood
havenwood / application_helper.rb
Last active April 30, 2019 19:55 — forked from webzorg/application_helper.rb
module ApplicationHelper
def bell_notification_with_conditional_counter
keyword_arguments = {class: 'notification-bell'}
keyword_arguments[:data] = {count: '...'} if Notification.unread_count(current_user).nonzero?
icon("fas", "bell", **keyword_arguments)
end
end
@havenwood
havenwood / x.rb
Created April 26, 2019 22:19
file
class Hangman
DICTIONARY = ["cat", "dog", "bootcamp", "pizza"]
def initialize()
@secret_word = Hangman.random_word
@guess_word = Array.new(@guess_word.length, "-")
@attempted_chars = Array.new
@remaining_incorrect_guesses = 5
end
@havenwood
havenwood / gvl_release.rb
Last active August 24, 2019 12:41 — forked from tenderlove/gvl_release.rb
require 'fiddle'
class GVL
handle = Fiddle::Handle::DEFAULT
address = handle['rb_thread_call_without_gvl']
func = Fiddle::Function.new address, [Fiddle::TYPE_VOIDP,
Fiddle::TYPE_VOIDP,
Fiddle::TYPE_VOIDP,
Fiddle::TYPE_VOIDP], Fiddle::TYPE_VOIDP
@havenwood
havenwood / gvl.rb
Created November 30, 2018 20:06
#!/usr/bin/env ruby
require 'fiddle/import'
module GVLUnlock
extend ::Fiddle::Importer
dlload ::Fiddle::Handle::DEFAULT
FP =
bind 'void *cb(void *data)' do |ptr|
ptr.to_i << 1
@havenwood
havenwood / bench
Last active June 6, 2018 06:02
benchmark for json, yajl and oj.
~ ruby json_benchmark.rb
String to JSON
Warming up --------------------------------------
Oj.dump 24.918k i/100ms
Yajl.dump 9.461k i/100ms
JSON.dump 24.797k i/100ms
MessagePack.dump 44.355k i/100ms
Calculating -------------------------------------
Oj.dump 267.683k (± 3.4%) i/s - 1.346M in 5.032971s
Yajl.dump 98.929k (± 2.8%) i/s - 501.433k in 5.072850s
@havenwood
havenwood / van_laarhoven_lens.rb
Created November 6, 2017 23:42 — forked from dminuoso/van_laarhoven_lens.rb
# Identity functor that does not give any additional structure
Identity = Struct.new(:value) do
def fmap(func = nil, &blk)
f = func || blk;
Identity.new(f.call(self.value))
end
end
# Const Functor that preserves its content
Const = Struct.new(:value) do
@havenwood
havenwood / gist:206989c1fac2de95c5ca1d8ed34f82ec
Created October 10, 2017 20:23
require 'fiddle'
class Object
def cast(as)
# Make sure iv table of the new class gets initialized.
as.new.send(:instance_variable_set, :@nil, nil)
rbasic = Fiddle::Pointer.new(__id__ << 1)
as_klass = Fiddle::Pointer.new(as.__id__ << 1)
# Ruby guarantees sizeof(VALUE) == sizeof(void *)
@havenwood
havenwood / installfest.md
Last active October 21, 2016 20:05 — forked from rubydiamond/installfest.md
Requirements to get a sticker and be ready for the workshop day.

Rails Girls L.A. The Third Level

[ ] I have an editor. It is ___________________.

[ ] I can show you where my terminal is and a few commands.

  • I can show where I am in the directories.
  • List the files in a particular directory.
  • Make a directory.