/* Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
- * 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
+ * 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
* Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
return MAKMEMO_BEGIN (memoize_exps (REF (exp, SEQUENCE, EXPS), env));
case SCM_EXPANDED_LAMBDA:
- /* The body will be a lambda-case. */
+ /* The body will be a lambda-case or #f. */
{
- SCM meta, docstring, proc;
+ SCM meta, docstring, body, proc;
meta = REF (exp, LAMBDA, META);
docstring = scm_assoc_ref (meta, scm_sym_documentation);
- proc = memoize (REF (exp, LAMBDA, BODY), env);
+ body = REF (exp, LAMBDA, BODY);
+ if (scm_is_false (body))
+ /* Give a body to case-lambda with no clauses. */
+ proc = MAKMEMO_LAMBDA
+ (MAKMEMO_CALL
+ (MAKMEMO_MOD_REF (list_of_guile,
+ scm_from_latin1_symbol ("throw"),
+ SCM_BOOL_F),
+ 5,
+ scm_list_5 (MAKMEMO_QUOTE (scm_args_number_key),
+ MAKMEMO_QUOTE (SCM_BOOL_F),
+ MAKMEMO_QUOTE (scm_from_latin1_string
+ ("Wrong number of arguments")),
+ MAKMEMO_QUOTE (SCM_EOL),
+ MAKMEMO_QUOTE (SCM_BOOL_F))),
+ FIXED_ARITY (0),
+ SCM_BOOL_F /* docstring */);
+ else
+ proc = memoize (body, env);
+
if (scm_is_string (docstring))
{
SCM args = SCM_MEMOIZED_ARGS (proc);
scm_init_memoize ()
{
scm_tc16_memoized = scm_make_smob_type ("%memoized", 0);
- scm_set_smob_mark (scm_tc16_memoized, scm_markcdr);
scm_set_smob_print (scm_tc16_memoized, scm_print_memoized);
scm_tc16_memoizer = scm_make_smob_type ("memoizer", 0);