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| author | Kaz Kylheku <kaz@kylheku.com> | 2014-02-28 23:37:45 -0800 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2014-02-28 23:37:45 -0800 |
| commit | 752f8309a72bacef5ce03ac8e98211b1df2ff0a8 (patch) | |
| tree | 273a223a69d6dfd8f735f18ae07da52141630c39 /ChangeLog | |
| parent | 94750af472e12acf3a5970c98e4dab6feada2e84 (diff) | |
| download | txr-752f8309a72bacef5ce03ac8e98211b1df2ff0a8.tar.gz txr-752f8309a72bacef5ce03ac8e98211b1df2ff0a8.tar.bz2 txr-752f8309a72bacef5ce03ac8e98211b1df2ff0a8.zip | |
Turn *gensym-counter* into proper special variable.
* eval.c (eval_init): Save *gensym-counter* symbol in gensym_counter_s
symbol variable right after interning, and use zero as the inital value
rather than the gensym_counter variable which is removed now.
* lib.c (gensym_counter_s): New symbol variable.
(gensym_counter): Variable removed.
(gensym): Slight refactoring to avoid a double variable lookup.
Also, for generational GC correctness, use the set macro to update it,
since the variable could live inside heap object and the counter
could overflow to bignums which are heap objects.
(obj_init): Remove initialization of gensym_counter.
* lib.h (gensym_counter_s): Declared.
(gensym_counter): Declaration removed, replaced by macro.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 19 |
1 files changed, 19 insertions, 0 deletions
@@ -1,5 +1,24 @@ 2014-02-28 Kaz Kylheku <kaz@kylheku.com> + Turn *gensym-counter* into proper special variable. + + * eval.c (eval_init): Save *gensym-counter* symbol in gensym_counter_s + symbol variable right after interning, and use zero as the inital value + rather than the gensym_counter variable which is removed now. + + * lib.c (gensym_counter_s): New symbol variable. + (gensym_counter): Variable removed. + (gensym): Slight refactoring to avoid a double variable lookup. + Also, for generational GC correctness, use the set macro to update it, + since the variable could live inside heap object and the counter + could overflow to bignums which are heap objects. + (obj_init): Remove initialization of gensym_counter. + + * lib.h (gensym_counter_s): Declared. + (gensym_counter): Declaration removed, replaced by macro. + +2014-02-28 Kaz Kylheku <kaz@kylheku.com> + Change in the design of how special variables work, to fix the broken re-binding. C code now has to go through the dynamic environment lookup to access things like *random-state*, or *stdout*. As part of this, |