share/lua/common/quvi/debug.lua

   1 -- libquvi-scripts
   2 -- Copyright (C) 2012  Toni Gundogdu <legatvs@gmail.com>
   3 --
   4 -- This file is part of libquvi-scripts <http://quvi.sourceforge.net/>.
   5 --
   6 -- This library is free software; you can redistribute it and/or
   7 -- modify it under the terms of the GNU Lesser General Public
   8 -- License as published by the Free Software Foundation; either
   9 -- version 2.1 of the License, or (at your option) any later version.
  10 --
  11 -- This library is distributed in the hope that it will be useful,
  12 -- but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 -- Lesser General Public License for more details.
  15 --
  16 -- You should have received a copy of the GNU Lesser General Public
  17 -- License along with this library; if not, write to the Free Software
  18 -- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19 -- 02110-1301  USA
  20 --
  21
  22 local M = {}
  23
  24 function M.line()  return debug.getinfo(2, 'l').currentline end
  25 function M.short() return debug.getinfo(2, 'S').short_src end
  26 function M.file()  return debug.getinfo(2, 'S').source end
  27 function M.func()  return debug.getinfo(2, 'n').name end
  28
  29 function M.say(qargs, ...)
  30   if not qargs.verbose then return end
  31   io.stderr:write(string.format('%s\n', string.format(...)))
  32 end
  33
  34 --[[
  35 function M.foo()
  36   qargs = {verbose=true}
  37   M.say(qargs, '%s:%s: foo=%s', M.file(), M.line(), 1)
  38   M.say(qargs, 'bar')
  39 end
  40 M.foo()
  41 ]]--
  42
  43 return M
  44
  45 -- vim: set ts=2 sw=2 tw=72 expandtab: