Class: CLI::UI::StdoutRouter::Writer

Inherits:
Object
  • Object
show all
Defined in:
lib/cli/ui/stdout_router.rb

Instance Method Summary collapse

Constructor Details

#initialize(stream, name) ⇒ Writer

: (io_like stream, Symbol name) -> void



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# File 'lib/cli/ui/stdout_router.rb', line 12

def initialize(stream, name)
  @stream = stream
  @name = name
end

Instance Method Details

#write(*args) ⇒ Object

: (*Object args) -> Integer



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# File 'lib/cli/ui/stdout_router.rb', line 18

def write(*args)
  strs = args.map do |obj|
    str = obj.to_s
    if auto_frame_inset?
      str = str.dup # unfreeze
      str = str.to_s.force_encoding(Encoding::UTF_8)
      apply_line_prefix(str, CLI::UI::Frame.prefix)
    else
      @pending_newline = false
      str
    end
  end

  # hook return of false suppresses output.
  if (hook = Thread.current[:cliui_output_hook])
    return 0 if hook.call(strs.join, @name) == false
  end

  stream_args = prepend_id(@stream, strs) #: as untyped
  ret = @stream.write_without_cli_ui(*stream_args) #: as Integer
  if (dup = StdoutRouter.duplicate_output_to)
    begin
      dup_args = prepend_id(dup, strs) #: as untyped
      dup.write(*dup_args) #: as Integer
    rescue IOError
      # Ignore
    end
  end
  ret
end