Module: GnuplotRB::ErrorHandling

Included in:
Terminal
Defined in:
lib/gnuplotrb/mixins/error_handling.rb

Overview

Mixin for classes that need to run subprocess and handle errors from its stderr.

Instance Method Summary collapse

Instance Method Details

#check_errors(raw: false) ⇒ Object

Check if there were errors in previous commands. Throws GnuplotError in case of any errors.



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# File 'lib/gnuplotrb/mixins/error_handling.rb', line 14

def check_errors(raw: false)
  return if @err_array.empty?
  command = ''
  rest = ''
  @semaphore.synchronize do
    command = @err_array.first
    rest = @err_array[1..-1].join('; ')
    @err_array.clear
  end
  message = if raw
    "#{command};#{rest}}"
  else
    "Error in previous command (\"#{command}\"): \"#{rest}\""
  end
  fail GnuplotError, message
end