Class: LanguageServer::Protocol::Transport::Io::Reader

Inherits:
Object
  • Object
show all
Defined in:
lib/language_server/protocol/transport/io/reader.rb

Direct Known Subclasses

Stdio::Reader

Instance Method Summary collapse

Constructor Details

#initialize(io) ⇒ Reader

Returns a new instance of Reader.



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# File 'lib/language_server/protocol/transport/io/reader.rb', line 8

def initialize(io)
  @io = io
end

Instance Method Details

#read(&block) ⇒ Object 



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# File 'lib/language_server/protocol/transport/io/reader.rb', line 12

def read(&block)
  buffer = ""
  header_parsed = false
  content_length = nil

  while char = io.getc
    buffer << char

    unless header_parsed
      if buffer[-4..-1] == "\r\n" * 2
        content_length = buffer.match(/Content-Length: (\d+)/i)[1].to_i

        header_parsed = true
        buffer.clear
      end
    else
      if buffer.bytesize == content_length
        request = JSON.parse(buffer, symbolize_names: true)

        block.call(request)

        header_parsed = false
        buffer.clear
      end
    end
  end
end