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Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 33 |
1 files changed, 33 insertions, 0 deletions
@@ -1,3 +1,36 @@ +2011-10-04 Kaz Kylheku <kaz@kylheku.com> + + Bugfixes to the semantics of binding environments, which + were broken in the face of deletions (local, forget). + For some stupid reason, I had written a destructive routine for + removing elements from an association list, and used it + as the basis for the local and forget directives. + + * lib.c (eq_f, car_f): New variables. + (identity_tramp, equal_tramp): Obsolete functions removed. + (apply): Broken function disabled at run time. + (funcall, funcall1, funcall2): Throw meaningful error instead + of aborting. + (alist_remove_test): New static function. + (alist_remove, alist_remove1): Rewritten to be functional + rather than destructive. + (alist_nremove, alist_nremove1): Destructive functions, + using previous implementations of alist and alist_nremove. + (do_sort): Recurses directly rather than via sort. That was + probably why this helper was introduced! + (find, set_diff): New functions. + (obj_init): gc-protect new variables eq_f and car_f, and initialize + them. Initializations for equal_f and identity_f changed to + use equal and identity directly, without the obsolete wrappers. + + * lib.h (eq_f, car_f, alist_nremove, alist_nremove1, + find, set_diff): Declared. + + * match.c (match_line): Use set_diff to determine what bindings + are new, rather than ldiff and ldiff-like logic which break when + the new bindings do not share structure with the old. + (match_files): Likewise. + 2011-10-03 Kaz Kylheku <kaz@kylheku.com> * txr.1: Starte dodcumenting the forgotten merge directive. |