ly/guile-debugger.ly

   1 %%%% This file is part of LilyPond, the GNU music typesetter.
   2 %%%%
   3 %%%% Copyright (C) 2009--2010 by Ian Hulin <ian@hulin.org.uk>
   4 %%%%
   5 %%%% LilyPond is free software: you can redistribute it and/or modify
   6 %%%% it under the terms of the GNU General Public License as published by
   7 %%%% the Free Software Foundation, either version 3 of the License, or
   8 %%%% (at your option) any later version.
   9 %%%%
  10 %%%% LilyPond is distributed in the hope that it will be useful,
  11 %%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 %%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 %%%% GNU General Public License for more details.
  14 %%%%
  15 %%%% You should have received a copy of the GNU General Public License
  16 %%%% along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  17
  18
  19
  20 %%  \include this file to enable the setting of breakpoints in guile.
  21 %%  Once loaded, this file will open a guile prompt.  Type
  22 %%  (debug-help)
  23 %%  at the guile prompt to get a list of possible commands.
  24 %%  For more information, see the Contributor's Guide.
  25
  26
  27 \version "2.13.10"
  28
  29 % define lilypond-module as a variable in the guile-user module and set
  30 % to the current Scheme module (which will be the lilypond top-level
  31 % module)
  32
  33 #(module-define! (resolve-module '(guile-user))
  34                  'lilypond-module
  35                  (current-module))
  36 %
  37 % Ensure we have command-line recall available at the guile prompt
  38 %
  39 #(use-modules (ice-9 readline))
  40 #(activate-readline)
  41 #(display "\n Guile debugger for Lilypond")
  42 #(display "\n For help enter (debug-help)\n")
  43 %
  44 % Ensure debugger definitions are available in lilypond-module and guile-user
  45 %
  46 #(use-modules (scm guile-debugger))
  47 #(ly:module-copy (resolve-module '(guile-user))
  48                  (resolve-module '(scm guile-debugger)))
  49 #(top-repl)
  50 %
  51 % top-repl has re-set the module to guile-user,
  52 %  so we need to set it back to lilypond-module
  53 %
  54 #(ly:module-copy (current-module) (resolve-module '(lilypond-module)))
  55 #(set-current-module lilypond-module)