Top Level Namespace

Defined Under Namespace

Modules: Serde

Constant Summary collapse 

'././@LongLink'
DESTINATION = 
File.expand_path('../.rustc', __dir__)

Instance Method Summary collapse

Instance Method Details

#download_and_extract(name) ⇒ Object

rubocop:disable Metrics/MethodLength



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# File 'lib/rustc_installer.rb', line 50

def download_and_extract(name) # rubocop:disable Metrics/MethodLength
  File.write(
    "#{name}.tar.gz",
    Net::HTTP.get(URI("https://static.rust-lang.org/dist/2018-11-27/#{name}.tar.gz")),
  )

  # https://stackoverflow.com/a/19139114
  Gem::Package::TarReader.new(Zlib::GzipReader.open("#{name}.tar.gz")) do |tar|
    dest = nil
    tar.each do |entry|
      if entry.full_name == TAR_LONGLINK
        dest = File.join DESTINATION, entry.read.strip
        next
      end
      dest ||= File.join DESTINATION, entry.full_name
      if entry.directory?
        File.delete dest if File.file? dest
        FileUtils.mkdir_p dest, mode: entry.header.mode, verbose: false
      elsif entry.file?
        FileUtils.rm_rf dest if File.directory? dest
        File.open dest, 'wb' do |f|
          f.print entry.read
        end
        FileUtils.chmod entry.header.mode, dest, verbose: false
      elsif entry.header.typeflag == '2' # Symlink!
        File.symlink entry.header.linkname, dest
      end
      dest = nil
    end
  end
end

#generate_serializers ⇒ Object

rubocop:disable Metrics/MethodLength



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# File 'lib/serde/generate.rb', line 13

def generate_serializers # rubocop:disable Metrics/MethodLength
  modules = []

  Serde.subclasses.each do |klass|
    schema = klass.instance_variable_get(:@schema)
    raise 'pls define a schema' if schema.nil?

    module_name = underscore(klass.name)
    fields = schema.map do |k, v|
      type =
        case v.to_s
        when 'Integer' then 'i64'
        when 'Float' then 'f64'
        else v.to_s
        end
      { name: k, type: type }
    end

    modules << {
      class_name: klass.name,
      name: module_name,
      fields: fields,
      joint_fields: fields.map do |field|
        "#{field[:name]}: #{field[:type]}"
      end.join(', '),
    }

    mod_template = ERB.new(File.read('./rust_template/mod.rs.erb'))
    compiled_template = mod_template.result(binding)

    File.open("./src/#{module_name}.rs", 'w') { |f| f.write(compiled_template) }
  end

  lib_template = ERB.new(File.read('./rust_template/lib.rs.erb'))
  compiled_template = lib_template.result(binding)

  File.open('./src/lib.rs', 'w') { |f| f.write(compiled_template) }

  `rake build`
end

#underscore(str) ⇒ Object 



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# File 'lib/serde/generate.rb', line 5

def underscore(str)
  str.tr('::', '/')
     .gsub(/([A-Z]+)([A-Z][a-z])/, '\1_\2')
     .gsub(/([a-z\d])([A-Z])/, '\1_\2')
     .tr('-', '_')
     .downcase
end