jhawthorn

class A
  def foo
    @foo
  end

  def initialize
    @foo = 123
    40.times do
      instance_variable_set(:"@var_#{_1}", _1)
    end

jhawthorn

# $ ruby -v
# ruby 3.2.0dev (2022-09-11T14:08:14Z master 684353fc03) [x86_64-linux]
# $ ruby --mjit=pause --mjit-wait --mjit-min-calls=5 hawthjit.rb
# 246
# 246
# 246
# 246
# attempting to compile block in <main>
# can't compile putself
# attempting to compile double

jhawthorn

Will be at https://twitch.tv/seejohnrun 4:00PM PST

Plan for Tuesday's Stream: ActionView fragment cache digesting

On a previous stream we looked at encapsulating Action View template details (format, locale, and variant) in a nice class rails/rails#42210. That code is now being used for template lookups rails/rails#42945.

Today I'd like to use these template details to change how we do Action View's fragment digests.

Currently these fragments are calculated separately for each different set of details,

jhawthorn

class Integer
  alias_method :add, :+
  alias_method :+, :*
  alias_method :*, :add
end

p File.readlines("data/18.txt").map {
  |l| eval(l.tr("+*", "*+"))
}.sum

jhawthorn

require "ripper"

class LocalDetector < ::Ripper
  Ident = Struct.new(:value)

  attr_reader :vcalls, :var_assigns, :var_refs

  def initialize(code)
    @vcalls = Set.new
    @var_assigns = Set.new

jhawthorn

module MyHelper
  m = Module.new
  m.inspect # #inspect break this. #name is fine. wtffffff
  FooBar = m
  FooBarName = FooBar.name
end

jhawthorn

#!/usr/bin/env ruby

# git-flatfix
# For each changed file, generate a separate "fixup" commit targetting the last
# time that file was changed.

def usage
  STDERR.puts <<~USAGE
    Usage: git-flatfix [basebranch]
  USAGE

jhawthorn

class NullFileUpdateChecker
  def initialize(files, dirs, &block)
    @block = block
  end

  def execute
    @block.call
  end

  def updated?

jhawthorn

REQUEST_URI = ARGV[0] || "http://0.0.0.0/"
REQUEST_OPTS = {
  'REMOTE_ADDR' => "127.0.0.1",
  'HTTP_HOST' => '0.0.0.0'
}
ARGV.clear

require "actionview_precompiler"
require "flamegraph"
require "./config/environment"

jhawthorn

# frozen_string_literal: true

ENV['RAILS_ROOT'] = "/Users/jhawthorn/src/current_status/"

require 'benchmark/ips'
require 'rails/all'
require 'rails/backtrace_cleaner'

class MyApp < Rails::Application
  config.root = "/Users/jhawthorn/src/current_status"