a-suenami

#!/bin/bash

PROGNAME="$( basename $0 )"

# Usage
function usage() {
  cat << EOS >&2
Usage: ${PROGNAME} [-h,--hoge] [--fuga [VALUE]] [--piyo VALUE]
  A sample script of parsing on bash.

a-suenami

# typed: strong

class SorbetSample
  sig { params(array: T::Array[MyInteger]).void }
  def initialize(array)
    @array = T.let(array, T::Array[MyInteger])
  end

  sig { returns(Integer) }
  def use_array_of_premitive_types

a-suenami

#!/usr/bin/env ruby

#
# Usage:
# irbify.rb script.rb | heroku run rails console --app=my-app
#
# Why eval and not piping directly? Piping directly would run all lines even if previous line was an invalid statement.
#

script_name = ARGV[0]

a-suenami

sorbet/

a-suenami

CREATE TABLE check_constraint_sample (col_not_null VARCHAR(255) NOT NULL, col_nullable VARCHAR(255));

ALTER TABLE check_constraint_sample ADD CONSTRAINT constraint1 CHECK (LENGTH(col_not_null) > 0);
ALTER TABLE check_constraint_sample ADD CONSTRAINT constraint2 CHECK (LENGTH(col_nullable) > 0);

-- 正常終了する
INSERT INTO check_constraint_sample (col_not_null, col_nullable) VALUES ('not null', 'not null');
INSERT INTO check_constraint_sample (col_not_null, col_nullable) VALUES ('not null', null);

-- 以下、すべてエラー

a-suenami

企画意図

文字通り、カジュアルなすえなみチャンス。

こんな感じの意図。 https://twitter.com/a_suenami/status/1145912998902394880

開催概要

こんな感じ。