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vm_insnhelper.c: add comments

* vm_insnhelper.c (vm_yield_setup_block_args): break a long line and
  add comments.  remove useless code.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41019 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2013-06-01 08:21:37 +00:00
parent a10ea5b94d
commit 767c502252

View file

@ -2205,7 +2205,9 @@ vm_yield_setup_block_args(rb_thread_t *th, const rb_iseq_t * iseq,
*/
arg0 = argv[0];
if (!(iseq->arg_simple & 0x02) && /* exclude {|a|} */
((m + iseq->arg_post_len) > 0 || iseq->arg_opts > 2) && /* this process is meaningful */
((m + iseq->arg_post_len) > 0 || /* positional arguments exist */
iseq->arg_opts > 2 || /* multiple optional arguments exist */
0) &&
argc == 1 && !NIL_P(ary = rb_check_array_type(arg0))) { /* rhs is only an array */
th->mark_stack_len = argc = RARRAY_LENINT(ary);
@ -2213,9 +2215,6 @@ vm_yield_setup_block_args(rb_thread_t *th, const rb_iseq_t * iseq,
MEMCPY(argv, RARRAY_PTR(ary), VALUE, argc);
}
else {
argv[0] = arg0;
}
for (i=argc; i<m; i++) {
argv[i] = Qnil;