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#! /usr/bin/env ruby

class Generator
  def initialize(base_locale:, root_name:, rb_path:, rbs_path:)
    @base_locale = base_locale.to_sym
    @root_name = root_name
    @rb_path = rb_path
    @rbs_path = rbs_path
    @stack = nil
    @mode = nil

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#! /usr/bin/env ruby

# $ rbs-fuzzing.rb [TypeName] [method_name]
# $ rbs-fuzzing.rb Integer
# $ rbs-fuzzing.rb Integer pow

require 'rbs'
require 'rbs/test'

class Fuzzing

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Example

$ cat a.rbs
class Foo
  def bar: () -> void
  def self.baz: () -> (Integer | String)
  def qux: (untyped) -> untyped
end

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[PoC] Proposal of RBS generation method using Rack architecture

RBS generation problem

RBS is an easy language to generate code for because of its simple syntax and lack of dependencies between files. In addition, there are currently a large number of required type definitions, so code generation for RBS is considered to be highly important.

Various attempts have been made to generate RBS code, including generation from JSON files and analysis of static and dynamic Ruby code. However, each method has its advantages and disadvantages, and not all problems have been solved.

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begin
  require "rbs_rails/rake_task"
  require "rbs"
rescue LoadError
  return
end

RbsRails::RakeTask.new

class AppGeneratedWriter < RBS::Writer

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# inspired by https://qiita.com/kentaro/items/477c92a57c8aaf694251

user = {
  id: 123_456,
  name: "ksss",
  profile: {
    real_name: "栗原勇樹",
    image: {
      original: "...",
      thumbnail: "...",

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if ENV['COVERAGE']
  require "coverage"
  Coverage.start
  at_exit do
    # "great_library" is example gem name
    cov = Coverage.result.select { |d| d.match?(%r{/great_library/lib/}) }
    cov.transform_keys! { |key| key.dup.sub!(%r{^.*great_library/(lib/.*)$}, '\1') }
    cov.transform_values! do |ary|
      ary = ary.compact
      ary.count { |l| l > 0 }.fdiv(ary.length)

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/* cat init.sql | sqlite3 pokemon */
drop table if exists status_list;
create table status_list(
  jpname VARCHAR(255) primary key,
  jpromaji VARCHAR(255) not null,
  no integer not null,
  h integer not null,
  a integer not null,
  b integer not null,
  c integer not null,

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#! /usr/bin/env ruby

require 'json'
require 'pp'
require 'optparse'

Option = Struct.new(
  :symbolize
)
o = Option.new(

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#! /usr/bin/env ruby

require 'logger'

case ARGV[0]
when "stdout"
  log = Logger.new(STDOUT)
else
  log = nil
end