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authorGary Houston <ghouston@arglist.com>2000-11-25 16:58:25 +0000
committerGary Houston <ghouston@arglist.com>2000-11-25 16:58:25 +0000
commit5f144b105db0dcbe3b33947317d3e9b98cbd5269 (patch)
treeb2491ba314e94a35b79871c086523d79192f5e91 /libguile/print.c
parent7f555fb4ed423ad783c961bed500c19d3159886a (diff)
downloadguile-5f144b105db0dcbe3b33947317d3e9b98cbd5269.tar.gz
* use an applicable SMOB to represent continuations, instead of a
custom tc7 type. This will make it easier to support R5RS multiple value continuations, without the use of a Scheme-level wrapper. * continuations.c (scm_tc16_continuation, continuation_mark, continuation_free, continuation_print, continuation_apply): new SMOB support. (scm_make_continuation): new procedure, replaces scm_make_cont with a different interface. (copy_stack_and_call, scm_dynthrow, scm_init_continuations): rewritten. (CHEAP_CONTINUATIONS): removed non-working code completely. (scm_call_continuation): removed. * continuations.h (struct scm_contregs): add num_stack_items and stack fields. previously stack was stored following this struct: use a tail array instead. (SCM_CONTINUATIONP): new macro. (SCM_CONTINUATION_LENGTH, SCM_SET_CONTINUATION_LENGTH): rewritten. (SCM_SET_CONTREGS): removed. * tags.h: removed scm_tc7_contin (was tag 61). * debug.c, gc.c, hash.c, print.c, procprop.c, procs.c: removed scm_tc7_contin support. * eval.c: use scm_make_continuation instead of scm_make_cont. don't set jump buffers here. remove scm_tc7_contin support. * init.c, root.c: create SMOB continuation for rootcont instead of scm_tc7_contin. call scm_init_continuations before scm_init_root. * root.c: remove support for static jmpbuf. It's not used by default and I broke it. create SMOB continuation for rootcont. * stacks.c: use SCM_CONTINUATIONP.
Diffstat (limited to 'libguile/print.c')
-rw-r--r--libguile/print.c7
1 files changed, 0 insertions, 7 deletions
diff --git a/libguile/print.c b/libguile/print.c
index 59004fd85..ecdc40d27 100644
--- a/libguile/print.c
+++ b/libguile/print.c
@@ -673,13 +673,6 @@ taloop:
}
scm_putc ('>', port);
break;
- case scm_tc7_contin:
- scm_puts ("#<continuation ", port);
- scm_intprint (SCM_CONTINUATION_LENGTH (exp), 10, port);
- scm_puts (" @ ", port);
- scm_intprint ((long) SCM_CONTREGS (exp), 16, port);
- scm_putc ('>', port);
- break;
case scm_tc7_port:
{
register long i = SCM_PTOBNUM (exp);