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# frozen_string_literal: true
require_relative 'destination_base'
module ProcessExecuter
module Destinations
# Handles standard error redirection
#
# @api private
class Stderr < DestinationBase
# Writes data to standard error
#
# @example
# stderr_handler = ProcessExecuter::Destinations::Stderr.new(:err)
# stderr_handler.write("Error message")
#
# @param data [String] the data to write
#
# @return [Integer] the number of bytes written
#
def write(data)
super
$stderr.write data
end
# Determines if this class can handle the given destination
#
# @param destination [Object] the destination to check
# @return [Boolean] true if destination is :err or 2
def self.handles?(destination)
[:err, 2].include?(destination)
end
end
end
end
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