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Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 26 |
1 files changed, 26 insertions, 0 deletions
@@ -1,3 +1,29 @@ +2014-02-24 Kaz Kylheku <kaz@kylheku.com> + + Symbol macros. + + * eval.c (top_smb, defsymacro_s, symacrolet_s): New global variables. + (lookup_symac, get_opt_param_syms, get_param_syms, op_defsymacro, + expand_symacrolet, make_var_shadowing_env): New static functions. + (expand_tree_cases, expand_catch_clause): Install shadowing environment + so lexical bindings hide any symbol macrolets. + (expand_place): Fix neglect to expand an atomic form, which breaks + symbol macros used as places. + (expand): Expand symbol macros, expand symacrolet binding forms. + Make sure symbol macros are shadowed in the lexical binding + constructs. Take advantage of return value of rlcp_tree in a + few places. + (macro_form_p): Support for symbol macros; bugfix: not handling + default argument. + (macroexpand_1): Streamlined, and support added for symbol macros. + (eval_init): Protect top_smb from gc. Create new hash, stored in + top_smb. Initialize defsymacro_s and symacrolet_s. + Register op_defsymacro. + + * parser.y (rlcp_tree): Return the to form instead of useless t and nil. + + * txr.1: Documented. + 2014-02-23 Kaz Kylheku <kaz@kylheku.com> * txr.1: Document quasiquote operator syntax. |