Contents

module Kernel
  # Like #warn produces the current line number as well.
  #
  #   require 'facet/kernel/warn_with_line'
  #
  #   warn_with_line("You have been warned.")
  #
  # _produces_
  #
  #   3: Warning: You have been warned.
  #
  # Note that this method depends on the output of #caller.
  def warn_with_line(msg="", fulltrace=nil)
    trace = caller(1)
    where = trace[0].sub(/:in.*/,'')
    STDERR.puts "#{where}: Warning: #{msg}"
    STDERR.puts trace.map { |t| "\tfrom #{t}" } if fulltrace
  end  
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
facets-0.7.0	lib/facet/kernel/warn_with_line.rb
facets-0.7.1	lib/facet/kernel/warn_with_line.rb
facets-0.7.2	lib/facet/kernel/warn_with_line.rb